Barko hydraulics Barko loaders 275b ser-ers User manual

Machine

Serial Number

The information and illustrations in this manual have

been approved as accurate at the time of printing.

However,themanualmaycontaininformationonoptions

not present on your loader. The right is reserved by

Barko Hydraulics,LLC to make changes and

improvements in it's product at anytime without notice

or obligation.

BARKOBARKO

BARKO

LOADERSLOADERS

LOADERS

SERVICE MANUALSERVICE MANUAL

SERVICE MANUAL

080699

275B SER-ERS275B SER-ERS

275B SER-ERS

(Stationary Electric Remote with Electric Remote Station)(Stationary Electric Remote with Electric Remote Station)

(Stationary Electric Remote with Electric Remote Station)

NOTE: The Grapple Service and Installation Information is not included in this manual. See separate

Grapple Service and Installation manual which accompanies all grapples from the factory.

BARKOBARKO

BARKO

HYDRAULICS,HYDRAULICS,

HYDRAULICS,LLCLLC

LLCLLC

LLC

mailing: PO Box 16227, Duluth, MN 55816 shipping: 1 Banks Avenue, Superior, WI 54880

phone:715-392-5641 fax:715-392-3931

website: www.barko.com email: [email protected]

OPERATORSOPERATORS

OPERATORS: 800-00023 PARTSPARTS

PARTSPARTS

PARTS: 800-00084 SERVICESERVICE

SERVICESERVICE

SERVICE: 800-00152

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

IntroductionIntroduction

Introduction............................................................................................

............................................................................................

.............................................. 33

33

3

Introduction ...................................................... 4

Abbreviations and Symbols ............................ 5

Hydraulic Pressure Warning Sheet .................. 6

Warranty .......................................................... 7

Know Your Machine ......................................... 8

Safety Summary .............................................. 9

Model Description ........................................... 13

Fire Prevention ................................................ 14

MaintenanceMaintenance

Maintenance ........................................................................................

........................................................................................

............................................ 1515

1515

15

A. Preventive MaintenanceA. Preventive Maintenance

A. Preventive Maintenance ......................................................

......................................................

........................... 1515

1515

15

Safety While Servicing ..................................... 16

Preventive Maintenance .................................. 17

Special New-Machine Instructions ................... 17

Service Schedule ............................................ 18

Lubrications Points .......................................... 19

Lubricants ........................................................ 20

Special Torque Specifications ........................ 21

General Torque Specifications ........................ 22

B. Hydraulic SystemB. Hydraulic System

B. Hydraulic System ..............................................................................

..............................................................................

....................................... 2323

2323

23

Hydraulic Schematics ...................................... 24

Hydraulic Pressure Settings ............................ 25

Hydraulic Reservoir Maintenance ................... 26

Hydraulic Oil Filter Maintenance ...................... 28

Eliminating Air From the System ...................... 30

Hydraulic Fittings, Hoses and Tubing .............. 31

Hydraulic Cylinder Maintenance ...................... 32

Accumulator Maintenance ............................... 34

Collector Maintenance ..................................... 35

Valve Maintenance (A20/A35 control valves) .. 37

Pump Maintenance (MDT46 swing) ................. 47

Motor Maintenance (MFE19 swing) .................. 56

Swing Motor Gearbox Maintenance (s10A) ...... 66

C. Electrical SystemC. Electrical System

C. Electrical System ..............................................................................

..............................................................................

....................................... 7474

7474

74

Electrical Motor Maintenance .......................... 75

Electrical Motor Coupling Maintenance ........... 77

Trouble ShootingTrouble Shooting

Trouble Shooting ..........................................................................

..........................................................................

..................................... 8080

8080

80

Electrical System Trouble Shooting ................ 81

Hydraulic System Trouble Shooting ................ 82

Machine Operations Trouble Shooting ............ 83

DecalsDecals

Decals ..............................................................................................................

..............................................................................................................

....................................................... 8484

8484

84

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IntroductionIntroduction

Introduction

page 4page 4

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INTRODUCTIONINTRODUCTION

INTRODUCTION

Your Barko Loader has been designed and manufactured with high quality materials and care in workmanship.

This manual is intended as a permanent reference to aid professional operator's in their work, and should be

available for use at any time. If the loader is not equipped with this manual, ask your supervisor to obtain one

for you.

Understand the correct servicing procedures before servicing the loader. It is important to know the correct

operating and servicing procedures of the loader and all safety precautions to prevent the possibility of property

damage and/or personal injury or death.

As a professional, trained operator, you are responsible for safety, both your own and that of your co-workers.

Your knowledge and use of all safety practices and correct servicing procedures in this manual, and your good

judgement, can be a major factor in preventing some of the thousands of injuries and deaths caused by

industrial accidents each year.

A professional operator should also be familiar with the information contained in other applicable sources such

as American National Standards, SAE, OSHA, etc.

ADDITIONAL INFORMATION:

Logging Safety Resource Guide (APA, 95-A-1) is available from the American Pulpwood Association. This

guide lists sources of videotapes, slide programs, movies, and publications on various aspects of logging

safety.

DON'T FORGET - SAFETY FIRST!DON'T FORGET - SAFETY FIRST!

DON'T FORGET - SAFETY FIRST!

Loader

Model No.

Serial No.

The Loader serial number plate is located on the

pedestal.

NOTE:NOTE:

NOTE: Information in this manual is current at the time of printing. Barko Hydraulics reserves the right to make

changes and improvements to it's products and manuals at any time without notice or obligation.

REFERENCEREFERENCE

REFERENCE

INFORMATIONINFORMATION

INFORMATION

All requests for information, service or spare parts

should include loader serial number. For more

information contact:

Barko Hydraulics,LLC

P.O. Box 16227

One Banks Avenue

Duluth, MN 55816

Phone: 715-392-5641

Fax: 715-392-3931

Website: www.barko.com

Email: [email protected]

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ABBREVIATIONS AND SYMBOLSABBREVIATIONS AND SYMBOLS

ABBREVIATIONS AND SYMBOLS

EXPLANATIONS OF OTHER OCCURRENCES IN THIS MANUAL:EXPLANATIONS OF OTHER OCCURRENCES IN THIS MANUAL:

EXPLANATIONS OF OTHER OCCURRENCES IN THIS MANUAL:

- In a parts list, when there are item numbers with empty spaces (no description or part number), these

parts have been previously deleted from that parts list and are not recorded anywhere.

- In a parts list, when there are items with no part number and a dotted line (----) is in the part number

space, this means that the part number is not sold separately or is not available at this time.

- When references to "right hand" or "left hand" are used in this manual, it is done from the operator's seat

in the forward operating position.

SYMBOLS USED ON MACHINESYMBOLS USED ON MACHINE

SYMBOLS USED ON MACHINE

IgnitionIgnition

Ignition

Key SwitchKey Switch

Key Switch

Power OnPower On

Power On

(Accessory)(Accessory)

(Accessory)

Power OffPower Off

Power Off

Power OnPower On

Power On

HornHorn

Horn

StarterStarter

Starter

EngineEngine

Engine

RPMRPM

RPM

FasterFaster

Faster

SlowerSlower

Slower

AirAir

Air

ConditionerConditioner

Conditioner

a/c = air conditioner

AC = Articulated Carrier (Art. Car.)

adj. = adjust or adjusting

appl. = application

AR = As Required

assy = assembly

BC = Back of Cab

b/m = bill of material

brg. = bearing

CAR = Carrier

coll. = collector

cond. = conditioner

CRL = Crawler

cyl. = cylinder

dia. = diameter

dwg. = drawing

Ft. Lbs. = Foot Pounds

gal. = gallon

HRT = Hydrostatic Rough Terrain carrier

ill. or illus. = illustration

In. Lbs. = Inch Pounds

incl. = includes or including

j.s. = joystick

Lbs. = pounds

LH (lh) = left hand

mtg. = mounting

N/A = Not Applicable

no. = number

NSS = Not Sold Separately

opt. = optional

pg. = page

qt. = quart

RH (rh) = right hand

sec. = secondary

see sep. ill. = see separate illustration (means:

located elsewhere in manual)

SE = Stationary Electric

SER or SR = Stationary Electric Remote

s/n = serial number

str. = straight

swhd = saw head

TM = Truck Mount

w/ = with

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In many instances, we have learned that the hydraulic relief valves of this equipment

have been reset, increasing the maximum pressures, and with it, the load the unit will

lift before the relief valve opens. In some instances, the consequences of increasing

this setting have been serious. The function of the relief valve is to provide a fuse

action to protect the machine and the operator from overloading. When overloaded,

different portions of the machine can become stressed to a level where parts fracture,

possibly resulting in death, severe injury or property damage. This is an extremelyThis is an extremely

This is an extremelyThis is an extremely

This is an extremely

dangerous practice.dangerous practice.

dangerous practice.

Accordingly, you are advised that the settings of these valves are limited to the

maximums listed above..

..

. Pressure settings in excess of these levels render each and

all Barko warranties null and void and constitute an obvious misuse and abuse of our

product.

WARNINGWARNING

WARNING

MODEL 275BMODEL 275B

MODEL 275B

MAXIMUM HYDRAULIC PRESSURE FORMAXIMUM HYDRAULIC PRESSURE FOR

MAXIMUM HYDRAULIC PRESSURE FOR

THIS MACHINE IS 2,250 PSI.THIS MACHINE IS 2,250 PSI.

THIS MACHINE IS 2,250 PSI.

SETTINGS HIGHER THAN THIS MAYSETTINGS HIGHER THAN THIS MAY

SETTINGS HIGHER THAN THIS MAY

RESULT IN DEATH, SEVERE INJURY ORRESULT IN DEATH, SEVERE INJURY OR

RESULT IN DEATH, SEVERE INJURY OR

PROPERTY DAMAGE.PROPERTY DAMAGE.

PROPERTY DAMAGE.

BARKO HYDRAULICS, LLCBARKO HYDRAULICS, LLC

BARKO HYDRAULICS, LLC

HYDRAULIC PRESSURE WARNING SHEETHYDRAULIC PRESSURE WARNING SHEET

HYDRAULIC PRESSURE WARNING SHEET

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BARKO HYDRAULICS, LLCBARKO HYDRAULICS, LLC

BARKO HYDRAULICS, LLC

WARRANTYWARRANTY

WARRANTY

BARKO HYDRAULICS, L.L.C. ("Barko") warrants to the Distributor and/or original Buyer each new hydraulic

knuckle boom loader, feller buncher or other product in BARKO HYDRAULICS Equipment Group including attachments

and accessories thereto, ("Product") sold by BARKO to be free from defects in material and workmanship under

normal use, maintenance and service.

BARKO will cause any major structural component of a BARKO product covered by this warranty which proves to

be defective in material or workmanship under normal use, maintenance and service within three (3) years ) or 6,000

hours, whichever occurs first from first day in service, provided first day in service is not later than one (1) year from

delivery to Distributor and/or original Buyer or other user, to be replaced without charge with a new or repaired part, at

BARKO election. BARKO also will cause the labor to remove any such defective part and to install the new or

repaired part to be provided without charge to the owner of said BARKO product. The parts and labor to meet this

warranty will be furnished by designated BARKO distributor.

BARKO will cause all other parts of product covered by this warranty which proves to be defective in material or

workmanship under normal use, maintenance and service within one (1 ) year or 2,000 hours, whichever occurs first

from first day in service, provided first day in service is not later than one (1) year from delivery to Distributor and/or

original Buyer or other user, to be replaced, without charge, with a new or repaired part, at BARKO election. BARKO

also will cause the labor to remove any such defective part and to install the new or repaired part to be provided

without charge to the owner of said BARKO product. The parts and labor to meet this warranty will be furnished by

BARKO designated distributor.

BARKO warrants all service parts purchased from BARKO and used on a BARKO manufactured unit, to be free

from defects in material and workmanship under normal use, maintenance and service for a period of six (6) months or

1,000 hours, whichever occurs first. BARKO will cause any such part which proves to be defective to be replaced

with a new or repaired part at BARKO election on a parts only basis.

Proof of any defect must be submitted to BARKO within ten (10) days from the date on which the defect was

discovered and any claim submitted within thirty (30) days after repair work is completed.

BARKO warranty does not cover:

1 Defects, damage or deterioration due to normal use, wear, tear, exposure, storage or corrosion.

2. Normal maintenance service, including replacement of filters, oil, seals and the like.

3. Damage due to failure to maintain or use the BARKO product or part according to manuals, schedules or good

practice.

4. Damage caused by abuse of equipment or parts by overloading, misapplication, improper operation or use,

installation of unapproved accessories or unauthorized alterations.

5. Damage resulting from repairs made in an unauthorized manner or installation of components not authorized by

BARKO.

6. The labor to remove and reinstall a defective replacement part after the expiration of the warranty period applicable

to the product in which part is located.

7. Overtime labor premiums.

8. Transportation of the BARKO product to the distributor's service facility or transportation of the distributor's

serviceman to the product's location.

9. Vendor components not manufactured by BARKO, such as engines, transmissions and components, Tires,

batteries or other parts normally warrantied and serviced by the manufacturer. The warranty of the respective

manufacturers of these components shall apply.

The Buyer accepts this warranty and the limitations and disclaimers set forth herein as part of the purchase of the

BARKO product or part to which this warranty applies.

THISWARRANTYISINLIEU OFALLOTHERWARRANTIES EXPRESS OR IMPLIED,STATUTORY,WRITTENORORAL,

ANDTHEREISNOIMPLIEDWARRANTYOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.

Remedies available to any person claiming under this warranty are exclusive and expressly limited to obtaining the

parts and the labor, where applicable, in accordance with terms of this warranty.

BARKO liability for losses, damages or expenses of any kind arising from the design, manufacture or sale of the

product covered by this warranty, whether based on warranty, negligence, contract, tort or otherwise, is limited to an

amount not exceeding the cost of correcting the defects as herein provided, and, at the expiration of the applicable

warranty period, all such liability shall terminate.

BARKO shall in no event be liable for incidental, consequential or special damages to losses of use of the BARKO

product, a loss or damage to property other than the BARKO product, a loss of profits or other commercial loss, or any

special or consequential damages (except liability for consequential damages which by law may not be disclaimed).

Revised 2/98

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KNOW YOUR MACHINEKNOW YOUR MACHINE

KNOW YOUR MACHINE

The following is a list of ten important safety precautions and warnings you should read through and understand

before operating or servicing your machine.

1.1.

1. Don't assume that because you know the control functions of other similar machinery, that youDon't assume that because you know the control functions of other similar machinery, that you

Don't assume that because you know the control functions of other similar machinery, that youDon't assume that because you know the control functions of other similar machinery, that you

Don't assume that because you know the control functions of other similar machinery, that you

can run and/or service the Barko Loader. All machines differ in some ways, and thesecan run and/or service the Barko Loader. All machines differ in some ways, and these

can run and/or service the Barko Loader. All machines differ in some ways, and these

differences must be noted and acknowledged. Read this manual thoroughly and understand alldifferences must be noted and acknowledged. Read this manual thoroughly and understand all

differences must be noted and acknowledged. Read this manual thoroughly and understand all

safety, operating, and servicing procedures before using the loader.safety, operating, and servicing procedures before using the loader.

safety, operating, and servicing procedures before using the loader.

2.2.

2. Know how to put your machine in a zero energy state for purposes of inspection, maintenance,Know how to put your machine in a zero energy state for purposes of inspection, maintenance,

Know how to put your machine in a zero energy state for purposes of inspection, maintenance,Know how to put your machine in a zero energy state for purposes of inspection, maintenance,

Know how to put your machine in a zero energy state for purposes of inspection, maintenance,

or repair.or repair.

or repair.

3.3.

3. Clear operating area of all obstacles and personnel before operating loader.Clear operating area of all obstacles and personnel before operating loader.

Clear operating area of all obstacles and personnel before operating loader.Clear operating area of all obstacles and personnel before operating loader.

Clear operating area of all obstacles and personnel before operating loader.

4.4.

4. Never approach power lines with any part of the machine or load! Current in a high voltageNever approach power lines with any part of the machine or load! Current in a high voltage

Never approach power lines with any part of the machine or load! Current in a high voltageNever approach power lines with any part of the machine or load! Current in a high voltage

Never approach power lines with any part of the machine or load! Current in a high voltage

power line may arc some distance to jump from the wire to a nearby "ground". KEEP WELLpower line may arc some distance to jump from the wire to a nearby "ground". KEEP WELL

power line may arc some distance to jump from the wire to a nearby "ground". KEEP WELL

CLEAR!CLEAR!

CLEAR!

5.5.

5. Allow only the operator on the machine. Keep riders off. Riders on machine are subject to injuryAllow only the operator on the machine. Keep riders off. Riders on machine are subject to injury

Allow only the operator on the machine. Keep riders off. Riders on machine are subject to injuryAllow only the operator on the machine. Keep riders off. Riders on machine are subject to injury

Allow only the operator on the machine. Keep riders off. Riders on machine are subject to injury

such as being struck by foreign objects and being thrown off the machine. Riders also obstructsuch as being struck by foreign objects and being thrown off the machine. Riders also obstruct

such as being struck by foreign objects and being thrown off the machine. Riders also obstruct

the operator's view, resulting in the machine being operated in an unsafe manner.the operator's view, resulting in the machine being operated in an unsafe manner.

the operator's view, resulting in the machine being operated in an unsafe manner.

6.6.

6. Never use a boom or attachment for a work platform or personnel carrier. Serious injury or deathNever use a boom or attachment for a work platform or personnel carrier. Serious injury or death

Never use a boom or attachment for a work platform or personnel carrier. Serious injury or deathNever use a boom or attachment for a work platform or personnel carrier. Serious injury or death

Never use a boom or attachment for a work platform or personnel carrier. Serious injury or death

may result.may result.

may result.

7.7.

7. When machine is not operating or when leaving cab, boom and attachment must be lowered toWhen machine is not operating or when leaving cab, boom and attachment must be lowered to

When machine is not operating or when leaving cab, boom and attachment must be lowered toWhen machine is not operating or when leaving cab, boom and attachment must be lowered to

When machine is not operating or when leaving cab, boom and attachment must be lowered to

the ground. Failure to do so may allow boom or attachment to move, causing property damage,the ground. Failure to do so may allow boom or attachment to move, causing property damage,

the ground. Failure to do so may allow boom or attachment to move, causing property damage,

injury, or death.injury, or death.

injury, or death.

8.8.

8. Do not tamper with any hydraulic line when it is pressurized. Escaping fluid under pressure canDo not tamper with any hydraulic line when it is pressurized. Escaping fluid under pressure can

Do not tamper with any hydraulic line when it is pressurized. Escaping fluid under pressure canDo not tamper with any hydraulic line when it is pressurized. Escaping fluid under pressure can

Do not tamper with any hydraulic line when it is pressurized. Escaping fluid under pressure can

penetrate the skin, causing serious injury. Relieve pressure before unhooking hydraulic or otherpenetrate the skin, causing serious injury. Relieve pressure before unhooking hydraulic or other

penetrate the skin, causing serious injury. Relieve pressure before unhooking hydraulic or other

lines. Tighten all connections before applying pressure. Keep hands and body away fromlines. Tighten all connections before applying pressure. Keep hands and body away from

lines. Tighten all connections before applying pressure. Keep hands and body away from

pinholes and nozzles which eject fluids under high pressure. Use a piece of cardboard to searchpinholes and nozzles which eject fluids under high pressure. Use a piece of cardboard to search

pinholes and nozzles which eject fluids under high pressure. Use a piece of cardboard to search

for leaks.for leaks.

for leaks.

If any fluid is injected into the skin, it must be surgically removed within a few hours by a doctorIf any fluid is injected into the skin, it must be surgically removed within a few hours by a doctor

If any fluid is injected into the skin, it must be surgically removed within a few hours by a doctor

familiar with this type of injury or gangrene may result.familiar with this type of injury or gangrene may result.

familiar with this type of injury or gangrene may result.

9.9.

9. Under no circumstances should any modifications be made to Barko machinery without factoryUnder no circumstances should any modifications be made to Barko machinery without factory

Under no circumstances should any modifications be made to Barko machinery without factoryUnder no circumstances should any modifications be made to Barko machinery without factory

Under no circumstances should any modifications be made to Barko machinery without factory

authorization. Any modifications may void the warranty. This machine was designed to do aauthorization. Any modifications may void the warranty. This machine was designed to do a

authorization. Any modifications may void the warranty. This machine was designed to do a

specific job and alterations could result in property damage, injury or death.specific job and alterations could result in property damage, injury or death.

specific job and alterations could result in property damage, injury or death.

10.10.

10. Replace any safety decals that are faded, torn, missing, illegible, or otherwise damaged. See yourReplace any safety decals that are faded, torn, missing, illegible, or otherwise damaged. See your

Replace any safety decals that are faded, torn, missing, illegible, or otherwise damaged. See yourReplace any safety decals that are faded, torn, missing, illegible, or otherwise damaged. See your

Replace any safety decals that are faded, torn, missing, illegible, or otherwise damaged. See your

machine's Parts Manual for decal kits applicable to your machine and for locations of all decals.machine's Parts Manual for decal kits applicable to your machine and for locations of all decals.

machine's Parts Manual for decal kits applicable to your machine and for locations of all decals.

Don't stop here - read on.Don't stop here - read on.

Don't stop here - read on.

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DANGERDANGER

DANGER

Never approach power lines with any part of theNever approach power lines with any part of the

Never approach power lines with any part of the

machine. Current in a high voltage line may arcmachine. Current in a high voltage line may arc

machine. Current in a high voltage line may arc

some distance to jump from the wire to a nearbysome distance to jump from the wire to a nearby

some distance to jump from the wire to a nearby

"ground". KEEP WELL CLEAR!"ground". KEEP WELL CLEAR!

"ground". KEEP WELL CLEAR!

SAFETY SUMMARYSAFETY SUMMARY

SAFETY SUMMARY

Failure to follow safety precautions in this manual can result in personal injury and/or property damage. Carefully

read safety cautions below and within this manual. Heed all decals mounted to machine.

DANGERDANGER

DANGER - Indicate immediate hazards which WILL result in severe personal injury or death.

WARNINGWARNING

WARNING - Indicate hazards or unsafe practices which COULD result in severe personal injury or

death.

CAUTIONCAUTION

CAUTION - Indicate hazards or unsafe practices which could result in damage to machine or minor

personal injury.

WARNINGWARNING

WARNING

Combustible and flammable fluids can causeCombustible and flammable fluids can cause

Combustible and flammable fluids can cause

death or severe injury. Do not smoke near fuelsdeath or severe injury. Do not smoke near fuels

death or severe injury. Do not smoke near fuels

or hydraulic fluids. Do not refuel while engine isor hydraulic fluids. Do not refuel while engine is

or hydraulic fluids. Do not refuel while engine is

hot or running and without proper ventilation.hot or running and without proper ventilation.

hot or running and without proper ventilation.

WARNINGWARNING

WARNING

Always lower boom to ground and shut downAlways lower boom to ground and shut down

Always lower boom to ground and shut down

engine before leaving cab. If necessary to workengine before leaving cab. If necessary to work

engine before leaving cab. If necessary to work

on machine with lifted boom, securely supporton machine with lifted boom, securely support

on machine with lifted boom, securely support

machine and attachment.machine and attachment.

machine and attachment.

DANGERDANGER

DANGER

Improper electrical connections will cause batteryImproper electrical connections will cause battery

Improper electrical connections will cause battery

explosion, combustion or electrical componentexplosion, combustion or electrical component

explosion, combustion or electrical component

damage, and may result in death or severe injury.damage, and may result in death or severe injury.

damage, and may result in death or severe injury.

This is a 12 volt negative ground electricalThis is a 12 volt negative ground electrical

This is a 12 volt negative ground electrical

system.system.

system.

WARNINGWARNING

WARNING

Wear required personal protective equipment atWear required personal protective equipment at

Wear required personal protective equipment at

all times to help prevent personal injury.all times to help prevent personal injury.

all times to help prevent personal injury.

DANGERDANGER

DANGER

High Voltage inside the electrical enclosure! OnlyHigh Voltage inside the electrical enclosure! Only

High Voltage inside the electrical enclosure! Only

authorized and qualified electricians may haveauthorized and qualified electricians may have

authorized and qualified electricians may have

access to electrical power equipment.access to electrical power equipment.

access to electrical power equipment.

WARNINGWARNING

WARNING

Safe and stable mounting of this machine on anSafe and stable mounting of this machine on an

Safe and stable mounting of this machine on an

appropriate surface is the owner's responsibility.appropriate surface is the owner's responsibility.

appropriate surface is the owner's responsibility.

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SAFETY SUMMARY CONTINUED...SAFETY SUMMARY CONTINUED...

SAFETY SUMMARY CONTINUED...

WARNINGWARNING

WARNING

Do not operate or work on machine until you:Do not operate or work on machine until you:

Do not operate or work on machine until you:

--

-Read and understand machine manuals,Read and understand machine manuals,

Read and understand machine manuals,Read and understand machine manuals,

Read and understand machine manuals,

safety decals, employer work rules, andsafety decals, employer work rules, and

safety decals, employer work rules, and

applicable government regulations.applicable government regulations.

applicable government regulations.

--

-Are trained and qualified in safe machineAre trained and qualified in safe machine

Are trained and qualified in safe machineAre trained and qualified in safe machine

Are trained and qualified in safe machine

operation and maintenance.operation and maintenance.

operation and maintenance.

--

-Consult supervisor to explain any unclearConsult supervisor to explain any unclear

Consult supervisor to explain any unclearConsult supervisor to explain any unclear

Consult supervisor to explain any unclear

instructions and warnings.instructions and warnings.

instructions and warnings.

--

-Contact Barko to replace lost manuals.Contact Barko to replace lost manuals.

Contact Barko to replace lost manuals.Contact Barko to replace lost manuals.

Contact Barko to replace lost manuals.

DANGERDANGER

DANGER

Falling boom or load will cause death or severeFalling boom or load will cause death or severe

Falling boom or load will cause death or severe

injury. Stay clear if boom or load are notinjury. Stay clear if boom or load are not

injury. Stay clear if boom or load are not

grounded.grounded.

grounded.

Clear all persons from area of operation andClear all persons from area of operation and

Clear all persons from area of operation and

machine movement. Never move boom or loadsmachine movement. Never move boom or loads

machine movement. Never move boom or loads

over the heads of other persons.over the heads of other persons.

over the heads of other persons.

WARNINGWARNING

WARNING

Do not use the lift hook on the motor to lift theDo not use the lift hook on the motor to lift the

Do not use the lift hook on the motor to lift the

motor along with additional equipment, such asmotor along with additional equipment, such as

motor along with additional equipment, such as

pumps, compressors or other driven machinery,pumps, compressors or other driven machinery,

pumps, compressors or other driven machinery,

In the case of assemblies on a common base, doIn the case of assemblies on a common base, do

In the case of assemblies on a common base, do

not lift with the motor lift hook but rather use anot lift with the motor lift hook but rather use a

not lift with the motor lift hook but rather use a

sling around the base or the lifting meanssling around the base or the lifting means

sling around the base or the lifting means

provided on the base. In all cases, take care toprovided on the base. In all cases, take care to

provided on the base. In all cases, take care to

assure lifting only in the direction intended in theassure lifting only in the direction intended in the

assure lifting only in the direction intended in the

design of the lifting means. Also, be careful todesign of the lifting means. Also, be careful to

design of the lifting means. Also, be careful to

avoid hazardous overloads due to decceleration,avoid hazardous overloads due to decceleration,

avoid hazardous overloads due to decceleration,

acceleration or shock forces, when lifting oracceleration or shock forces, when lifting or

acceleration or shock forces, when lifting or

transporting heavy parts or equipment.transporting heavy parts or equipment.

transporting heavy parts or equipment.

WARNINGWARNING

WARNING

The high voltage and rotating parts associatedThe high voltage and rotating parts associated

The high voltage and rotating parts associated

with motor applications can cause serious injury.with motor applications can cause serious injury.

with motor applications can cause serious injury.

It is important to observe and follow safetyIt is important to observe and follow safety

It is important to observe and follow safety

precautions to protect personnel from suchprecautions to protect personnel from such

precautions to protect personnel from such

injury. Personnel should be instructed to:injury. Personnel should be instructed to:

injury. Personnel should be instructed to:

1.1.

1. Have all installation, maintenance and repairHave all installation, maintenance and repair

Have all installation, maintenance and repairHave all installation, maintenance and repair

Have all installation, maintenance and repair

work performed by qualified people, such aswork performed by qualified people, such as

work performed by qualified people, such as

certified electricians.certified electricians.

certified electricians.

2.2.

2. Disconnect and lock out all power sourcesDisconnect and lock out all power sources

Disconnect and lock out all power sourcesDisconnect and lock out all power sources

Disconnect and lock out all power sources

before doing any work on equipment.before doing any work on equipment.

before doing any work on equipment.

3.3.

3. Follow the procedures outlined underFollow the procedures outlined under

Follow the procedures outlined underFollow the procedures outlined under

Follow the procedures outlined under

"WARNING: Do not use the lift hook...""WARNING: Do not use the lift hook..."

"WARNING: Do not use the lift hook..."

which follows these warnings.which follows these warnings.

which follows these warnings.

4.4.

4. Make electrical installation in accordance withMake electrical installation in accordance with

Make electrical installation in accordance withMake electrical installation in accordance with

Make electrical installation in accordance with

National Electrical Code and local codes.National Electrical Code and local codes.

National Electrical Code and local codes.

5.5.

5. Properly ground the equipment in accordance

Properly ground the equipment in accordance

Properly ground the equipment in accordanceProperly ground the equipment in accordance

Properly ground the equipment in accordance

with the National Electrical Code.with the National Electrical Code.

with the National Electrical Code.

6.6.

6. Be sure shaft key and pump drive couplingBe sure shaft key and pump drive coupling

Be sure shaft key and pump drive couplingBe sure shaft key and pump drive coupling

Be sure shaft key and pump drive coupling

are properly installed before unit is energized.are properly installed before unit is energized.

are properly installed before unit is energized.

7.7.

7. Keep hands, hair, clothing and tools awayKeep hands, hair, clothing and tools away

Keep hands, hair, clothing and tools awayKeep hands, hair, clothing and tools away

Keep hands, hair, clothing and tools away

from all moving parts when operating orfrom all moving parts when operating or

from all moving parts when operating or

repairing equipment.repairing equipment.

repairing equipment.

8.8.

8. Provide proper safeguards for personnelProvide proper safeguards for personnel

Provide proper safeguards for personnelProvide proper safeguards for personnel

Provide proper safeguards for personnel

to prevent contact with rotating parts.to prevent contact with rotating parts.

to prevent contact with rotating parts.

WARNINGWARNING

WARNING

Transparent material such as safety glass must beTransparent material such as safety glass must be

Transparent material such as safety glass must be

replaced when it is cracked or broken, or whenreplaced when it is cracked or broken, or when

replaced when it is cracked or broken, or when

vision is obscured due to scratches.vision is obscured due to scratches.

vision is obscured due to scratches.

WARNINGWARNING

WARNING

Allow only operator on machine. Keep riders off.Allow only operator on machine. Keep riders off.

Allow only operator on machine. Keep riders off.

Riders on machine are subject to injury such asRiders on machine are subject to injury such as

Riders on machine are subject to injury such as

being struck by foreign objects and being thrownbeing struck by foreign objects and being thrown

being struck by foreign objects and being thrown

off machine. Riders also obstruct operator's view,off machine. Riders also obstruct operator's view,

off machine. Riders also obstruct operator's view,

resulting in machine being operated in an unsaferesulting in machine being operated in an unsafe

resulting in machine being operated in an unsafe

manner.manner.

manner.

Never use a boom attachment for a work platformNever use a boom attachment for a work platform

Never use a boom attachment for a work platform

or personnel carrier.or personnel carrier.

or personnel carrier.

CAUTIONCAUTION

CAUTION

Grease all boom, cylinder, and turntable bearing/Grease all boom, cylinder, and turntable bearing/

Grease all boom, cylinder, and turntable bearing/

pinion points daily.pinion points daily.

pinion points daily.

page 11page 11

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275BSER

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WARNINGWARNING

WARNING

Improper load handling and/or hydraulic pressureImproper load handling and/or hydraulic pressure

Improper load handling and/or hydraulic pressure

loss can cause load to impact cab guard, resultingloss can cause load to impact cab guard, resulting

loss can cause load to impact cab guard, resulting

in death or severe injury.in death or severe injury.

in death or severe injury.

--

-Do not rely on guard alone for personalDo not rely on guard alone for personal

Do not rely on guard alone for personalDo not rely on guard alone for personal

Do not rely on guard alone for personal

protection. Use safe and proper load handlingprotection. Use safe and proper load handling

protection. Use safe and proper load handling

techniques.techniques.

techniques.

--

-Do not operate machine with damaged orDo not operate machine with damaged or

Do not operate machine with damaged orDo not operate machine with damaged or

Do not operate machine with damaged or

unsecured guard or cab.unsecured guard or cab.

unsecured guard or cab.

--

-Do not repair damaged guard. Replace withDo not repair damaged guard. Replace with

Do not repair damaged guard. Replace withDo not repair damaged guard. Replace with

Do not repair damaged guard. Replace with

factory-authorized guard.factory-authorized guard.

factory-authorized guard.

--

-Do not modify guard without factoryDo not modify guard without factory

Do not modify guard without factoryDo not modify guard without factory

Do not modify guard without factory

authorization.authorization.

authorization.

--

-Do not operate before conducting Pre-StartDo not operate before conducting Pre-Start

Do not operate before conducting Pre-StartDo not operate before conducting Pre-Start

Do not operate before conducting Pre-Start

Maintenance Inspection. Check hydraulicMaintenance Inspection. Check hydraulic

Maintenance Inspection. Check hydraulic

components for leaks, loose fittings or damage.components for leaks, loose fittings or damage.

components for leaks, loose fittings or damage.

WARNINGWARNING

WARNING

High pressure hydraulic fluid can penetrate skinHigh pressure hydraulic fluid can penetrate skin

High pressure hydraulic fluid can penetrate skin

causing death, gangrene or other severe injury.causing death, gangrene or other severe injury.

causing death, gangrene or other severe injury.

Seek immediate medical help to remove fluid.Seek immediate medical help to remove fluid.

Seek immediate medical help to remove fluid.

--

-Keep hands and body away from areasKeep hands and body away from areas

Keep hands and body away from areasKeep hands and body away from areas

Keep hands and body away from areas

ejecting fluid. Use piece of cardboard toejecting fluid. Use piece of cardboard to

ejecting fluid. Use piece of cardboard to

check for leaks. Wear proper hand and eyecheck for leaks. Wear proper hand and eye

check for leaks. Wear proper hand and eye

protection.protection.

protection.

--

-Relieve hydraulic pressure before looseningRelieve hydraulic pressure before loosening

Relieve hydraulic pressure before looseningRelieve hydraulic pressure before loosening

Relieve hydraulic pressure before loosening

any hydraulic connections.any hydraulic connections.

any hydraulic connections.

--

-Tighten all hydraulic connections beforeTighten all hydraulic connections before

Tighten all hydraulic connections beforeTighten all hydraulic connections before

Tighten all hydraulic connections before

applying hydraulic pressure.applying hydraulic pressure.

applying hydraulic pressure.

WARNINGWARNING

WARNING

Always maintain 3-point contact with handles andAlways maintain 3-point contact with handles and

Always maintain 3-point contact with handles and

steps when mounting or dismounting. Neversteps when mounting or dismounting. Never

steps when mounting or dismounting. Never

jump on or off machine.jump on or off machine.

jump on or off machine.

WARNINGWARNING

WARNING

Mechanically connected controls will causeMechanically connected controls will cause

Mechanically connected controls will cause

movement of components at all times - even ifmovement of components at all times - even if

movement of components at all times - even if

pump or engine is not operating. Always bepump or engine is not operating. Always be

pump or engine is not operating. Always be

certain that boom and attachment are properlycertain that boom and attachment are properly

certain that boom and attachment are properly

supported or resting on firm ground beforesupported or resting on firm ground before

supported or resting on firm ground before

stopping engine to minimize chance ofstopping engine to minimize chance of

stopping engine to minimize chance of

accidental movements of components causingaccidental movements of components causing

accidental movements of components causing

injury or death.injury or death.

injury or death.

WARNINGWARNING

WARNING

Loose or overtorqued bolts can cause death,Loose or overtorqued bolts can cause death,

Loose or overtorqued bolts can cause death,

severe injury, or property damage. Maintainsevere injury, or property damage. Maintain

severe injury, or property damage. Maintain

proper bolt torque. Visually check bolts daily.proper bolt torque. Visually check bolts daily.

proper bolt torque. Visually check bolts daily.

Check torque every 50 hours.Check torque every 50 hours.

Check torque every 50 hours.

WARNINGWARNING

WARNING

Remove or secure all personal or maintenanceRemove or secure all personal or maintenance

Remove or secure all personal or maintenance

items such as lunch buckets, chains, shovels,items such as lunch buckets, chains, shovels,

items such as lunch buckets, chains, shovels,

tools, etc., before moving or operating machine.tools, etc., before moving or operating machine.

tools, etc., before moving or operating machine.

WARNINGWARNING

WARNING

Replace any safety decals that are faded, torn,Replace any safety decals that are faded, torn,

Replace any safety decals that are faded, torn,

missing, illegible, or otherwise damaged.missing, illegible, or otherwise damaged.

missing, illegible, or otherwise damaged.

SAFETY SUMMARY CONTINUED...SAFETY SUMMARY CONTINUED...

SAFETY SUMMARY CONTINUED...

WARNINGWARNING

WARNING

Any unauthorized welding, alterations, additionsAny unauthorized welding, alterations, additions

Any unauthorized welding, alterations, additions

or modifications made to Barko machinery willor modifications made to Barko machinery will

or modifications made to Barko machinery will

void warranty. This machine was designed to dovoid warranty. This machine was designed to do

void warranty. This machine was designed to do

a specific job and alterations could result ina specific job and alterations could result in

a specific job and alterations could result in

injury or property damage.injury or property damage.

injury or property damage.

If Barko-authorized welding must be done, firstIf Barko-authorized welding must be done, first

If Barko-authorized welding must be done, first

disconnect both battery cables and all alternatordisconnect both battery cables and all alternator

disconnect both battery cables and all alternator

connections or electrical and structural damageconnections or electrical and structural damage

connections or electrical and structural damage

to machine may occur.to machine may occur.

to machine may occur.

WARNINGWARNING

WARNING

Make sure that all walking and climbing surfacesMake sure that all walking and climbing surfaces

Make sure that all walking and climbing surfaces

of machine are free of dirt, debris, water, grease,of machine are free of dirt, debris, water, grease,

of machine are free of dirt, debris, water, grease,

oil, and snow. Do not leave loose tools or ragsoil, and snow. Do not leave loose tools or rags

oil, and snow. Do not leave loose tools or rags

on machine. Replace all non-skid material that ison machine. Replace all non-skid material that is

on machine. Replace all non-skid material that is

torn, missing or damaged.torn, missing or damaged.

torn, missing or damaged.

page 12page 12

page 12

275BSER

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WARNINGWARNING

WARNING

If this machine is equipped with electric motorIf this machine is equipped with electric motor

If this machine is equipped with electric motor

driven Auxiliary Oil Cooler, be sure battery isdriven Auxiliary Oil Cooler, be sure battery is

driven Auxiliary Oil Cooler, be sure battery is

disconnected before going near cooler fan. Ifdisconnected before going near cooler fan. If

disconnected before going near cooler fan. If

battery is not disconnected, fan may come on atbattery is not disconnected, fan may come on at

battery is not disconnected, fan may come on at

any time causing severe injury.any time causing severe injury.

any time causing severe injury.

WARNINGWARNING

WARNING

Use caution when checking items beyond yourUse caution when checking items beyond your

Use caution when checking items beyond your

reach. Use an approved safety ladder.reach. Use an approved safety ladder.

reach. Use an approved safety ladder.

WARNINGWARNING

WARNING

Do not exceed 15 p.s.i. nozzle pressure whenDo not exceed 15 p.s.i. nozzle pressure when

Do not exceed 15 p.s.i. nozzle pressure when

drying parts with compressed air. Do not directdrying parts with compressed air. Do not direct

drying parts with compressed air. Do not direct

compressed air against human skin. Seriouscompressed air against human skin. Serious

compressed air against human skin. Serious

injury could result.injury could result.

injury could result.

CAUTIONCAUTION

CAUTION

Use only hydraulic fluid in hydraulic oil reservoir.Use only hydraulic fluid in hydraulic oil reservoir.

Use only hydraulic fluid in hydraulic oil reservoir.

Other fluids will cause machine damage.Other fluids will cause machine damage.

Other fluids will cause machine damage.

WARNINGWARNING

WARNING

Older air conditioning equipment may contain R-Older air conditioning equipment may contain R-

Older air conditioning equipment may contain R-

12, a substance which harms public health and12, a substance which harms public health and

12, a substance which harms public health and

environment by destroying ozone in the upperenvironment by destroying ozone in the upper

environment by destroying ozone in the upper

atmosphere. To remove R-12 from the airatmosphere. To remove R-12 from the air

atmosphere. To remove R-12 from the air

conditioning system, use service equipmentconditioning system, use service equipment

conditioning system, use service equipment

certified to meet the requirements of S.A.E. J2209certified to meet the requirements of S.A.E. J2209

certified to meet the requirements of S.A.E. J2209

or J1990.or J1990.

or J1990.

SAFETY SUMMARY CONTINUED...SAFETY SUMMARY CONTINUED...

SAFETY SUMMARY CONTINUED...

page 13page 13

page 13

275BSER

800-00152

MODEL DESCRIPTIONMODEL DESCRIPTION

MODEL DESCRIPTION

WARNINGWARNING

WARNING

Boom is shown in lifted, operating position. Always shut down the machine and lowerBoom is shown in lifted, operating position. Always shut down the machine and lower

Boom is shown in lifted, operating position. Always shut down the machine and lower

boom and attachment to the ground when not operating or before maintenance of any kind.boom and attachment to the ground when not operating or before maintenance of any kind.

boom and attachment to the ground when not operating or before maintenance of any kind.

If necessary to work on a lifted boom or attachment, securely support the boom andIf necessary to work on a lifted boom or attachment, securely support the boom and

If necessary to work on a lifted boom or attachment, securely support the boom and

attachment so that they cannot move or fall in any way.attachment so that they cannot move or fall in any way.

attachment so that they cannot move or fall in any way.

Stick BoomStick Boom

Stick Boom

CylinderCylinder

Cylinder

TurntableTurntable

Turntable

BearingBearing

Bearing

Main BoomMain Boom

Main Boom

CylindersCylinders

Cylinders

REMOTE POWER UNITREMOTE POWER UNIT

REMOTE POWER UNIT

FanFan

Fan

MotorMotor

Motor

ElectricElectric

Electric

MotorMotor

Motor

PumpsPumps

Pumps

PedestalPedestal

Pedestal

AccessAccess

Access

DoorDoor

Door

PedestalPedestal

Pedestal

HeadHead

Head

AssemblyAssembly

Assembly

(with(with

(with

swingswing

swing

motor andmotor and

motor and

gearbox)gearbox)

gearbox)

MainMain

Main

BoomBoom

Boom

Stick BoomStick Boom

Stick Boom

GrappleGrapple

Grapple

RotatorRotator

Rotator

GrappleGrapple

Grapple

CylinderCylinder

Cylinder

GrappleGrapple

Grapple

CylinderCylinder

Cylinder

GrappleGrapple

Grapple

ArmsArms

Arms

Hydraulic OilHydraulic Oil

Hydraulic Oil

ReservoirReservoir

Reservoir

ElectricalElectrical

Electrical

EnclosureEnclosure

Enclosure

PumpsPumps

Pumps

page 14page 14

page 14

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800-00152

FIRE PREVENTIONFIRE PREVENTION

FIRE PREVENTION

The electrical system, if damaged or incorrectly maintained, can be a source of arcs or sparks.

Avoid conditions where explosive dust or gases can be ignited by arcs, sparks or heat.

Flammable debris (twigs, leaves, straw, etc.) must be removed on a daily basis or more often if necessary.

Excessive debris will increase the condition for a fire hazard. Clean the machine often.

FIRE PREVENTION CHECK LISTFIRE PREVENTION CHECK LIST

FIRE PREVENTION CHECK LIST

The following list provides data which will help to prevent fires.

- Do not use the machine in areas with explosive dust or gases. These elements can be ignited by arcs,

sparks, or hot components.

- Inspect the cab, motor compartment, and cooling system every day. Clean if necessary to prevent

overheating. Remove all flammable material (rags, debris, fluid spills, etc.).

- Inspect all electrical wiring and connections for damage daily. Replace or repair any damaged part.

- Daily, inspect all hydraulic oil tubes, hoses, and fittings for damage and leakage. Tighten or replace as

necessary. Always clean fluid spills.

- Clean the machine and disconnect power before doing any welding. Cover rubber hoses and other

flammable parts. Never ground arc welder or electrical accessories through turntable or boom bearings

as arcing may occur, causing bearing damage.

WARNINGWARNING

WARNING

Do not weld on any structural member unlessDo not weld on any structural member unless

Do not weld on any structural member unless

specifically authorized by Barko Hydraulics.specifically authorized by Barko Hydraulics.

specifically authorized by Barko Hydraulics.

Any unauthorized welding or welding proceduresAny unauthorized welding or welding procedures

Any unauthorized welding or welding procedures

will void the warranty, and may cause structuralwill void the warranty, and may cause structural

will void the warranty, and may cause structural

damage.damage.

damage.

- Read the Electric Motor Manual accompanying this manual for complete motor operating and motor

safety instructions.

- Keep a fire extinguisher nearby.

page 15page 15

page 15

275BSER

800-00152

MaintenanceMaintenance

Maintenance

A. PREVENTIVE MAINTENANCEA. PREVENTIVE MAINTENANCE

A. PREVENTIVE MAINTENANCE

MaintenanceMaintenance

Maintenance

page 16page 16

page 16

275BSER

800-00152

The following maintenance section gives suggested guidelines for operational maintenance on your machine. It is

not intended for use as a service manual.

In severe conditions (extreme dust, heat, cold, humidity, etc.) you will need to service your machine more often.

Your experience will dictate a more severe servicing program.

Safety while servicing your machine is your responsibility. Only qualified and authorized personnel should be

permitted to maintain, repair, adjust and inspect machine.

Read and understand warnings and safety precautions in Safety Summary and elsewhere in this manual before

doing any service on machine. The following precautions should be used as a reminder to safe servicing.

SAFETY WHILE SERVICINGSAFETY WHILE SERVICING

SAFETY WHILE SERVICING

REMEMBER: SAFETY FIRST!REMEMBER: SAFETY FIRST!

REMEMBER: SAFETY FIRST!

WARNINGWARNING

WARNING

High Voltage exists inside the electrical enclosure!High Voltage exists inside the electrical enclosure!

High Voltage exists inside the electrical enclosure!

Only authorized and qualified electricians may haveOnly authorized and qualified electricians may have

Only authorized and qualified electricians may have

access to electrical power equipment. Failure toaccess to electrical power equipment. Failure to

access to electrical power equipment. Failure to

heed this warning may result in death.heed this warning may result in death.

heed this warning may result in death.

WARNINGWARNING

WARNING

Always shut down the machine and lower the boomAlways shut down the machine and lower the boom

Always shut down the machine and lower the boom

and attachment to the ground before working on theand attachment to the ground before working on the

and attachment to the ground before working on the

machine. If necessary to work on a lifted boom ormachine. If necessary to work on a lifted boom or

machine. If necessary to work on a lifted boom or

attachment, securelyattachment, securely

attachment, securely

support the boom and attachment so that theysupport the boom and attachment so that they

support the boom and attachment so that they

cannot move or fall in any way.cannot move or fall in any way.

cannot move or fall in any way.

WARNINGWARNING

WARNING

Don't leave loose tools and rags on theDon't leave loose tools and rags on the

Don't leave loose tools and rags on the

machine. Ensure that all walking and climbingmachine. Ensure that all walking and climbing

machine. Ensure that all walking and climbing

surfaces are clean.surfaces are clean.

surfaces are clean.

WARNINGWARNING

WARNING

Do not weld on any structural member unlessDo not weld on any structural member unless

Do not weld on any structural member unless

specifically authorized by Barko Hydraulics. Anyspecifically authorized by Barko Hydraulics. Any

specifically authorized by Barko Hydraulics. Any

unauthorized welding or welding procedures willunauthorized welding or welding procedures will

unauthorized welding or welding procedures will

void the warranty, and may cause structural damagevoid the warranty, and may cause structural damage

void the warranty, and may cause structural damage

and injury.and injury.

and injury.

WARNINGWARNING

WARNING

Do not support the machine on cinder blocks,Do not support the machine on cinder blocks,

Do not support the machine on cinder blocks,

hollow tiles, or props that may crumble under ahollow tiles, or props that may crumble under a

hollow tiles, or props that may crumble under a

load. Do not work under a machine that isload. Do not work under a machine that is

load. Do not work under a machine that is

supported solely by a jack.supported solely by a jack.

supported solely by a jack.

CAUTIONCAUTION

CAUTION

Check the Hour Meter regularly to determine whenCheck the Hour Meter regularly to determine when

Check the Hour Meter regularly to determine when

the machine needs periodic maintenance. Use thethe machine needs periodic maintenance. Use the

the machine needs periodic maintenance. Use the

intervals on the Service Schedule except whenintervals on the Service Schedule except when

intervals on the Service Schedule except when

operating in extreme conditions; then shorteroperating in extreme conditions; then shorter

operating in extreme conditions; then shorter

intervals must be used.intervals must be used.

intervals must be used.

WARNINGWARNING

WARNING

Under no circumstances should any modificationsUnder no circumstances should any modifications

Under no circumstances should any modifications

be made to Barko machinery without factorybe made to Barko machinery without factory

be made to Barko machinery without factory

authorization. Any modifications may void theauthorization. Any modifications may void the

authorization. Any modifications may void the

warranty. This machine was designed to do awarranty. This machine was designed to do a

warranty. This machine was designed to do a

specific job and alterations could result in injury tospecific job and alterations could result in injury to

specific job and alterations could result in injury to

operator or machine.operator or machine.

operator or machine.

WARNINGWARNING

WARNING

Handle fluids carefully. Do not smoke while fillingHandle fluids carefully. Do not smoke while filling

Handle fluids carefully. Do not smoke while filling

tanks or working near fluids.tanks or working near fluids.

tanks or working near fluids.

Refer to Lubricants whenever replacing fluids.Refer to Lubricants whenever replacing fluids.

Refer to Lubricants whenever replacing fluids.

- Lower boom to ground.

- Shut down machine to a zero energy state.

- Remove key from ignition.

- Allow machine to cool.

- Relieve all hydraulic pressure.

- Remove, block or guard against body contact with all

other sources of hazardous pressure, temperature,

electricity, or machine motion.

- Ensure machine, boom or attachment are not

supported on props that may collapse. Ensure boom

and attachment are grounded.

BEFORE INSPECTION OR MAINTENANCE:BEFORE INSPECTION OR MAINTENANCE:

BEFORE INSPECTION OR MAINTENANCE:

page 17page 17

page 17

275BSER

800-00152

Preventive maintenance is really just a simple matter of common sense. If you keep any piece of mechanical

equipment clean and properly lubricated, and promptly replace any worn or damaged parts, you are going to

"prevent" deterioration and promote long life and safe, productive service. The only other requisite to such a

program is the regular scheduling of such maintenance.

Obviously, when you are operating under severe job conditions, such as a dusty job site, in extreme heat or

cold, a long operating day, or extremely heavy loads, the recommended intervals in the schedule should be

shortened.

The suggested schedule on the following page is designed to be just a reminder of what should be done. For

detailed instructions on each item, consult the Table of Contents for where each is located in this manual.

Instructions are necessary before doing serviceInstructions are necessary before doing service

Instructions are necessary before doing service

on loader. See warnings and instructions both aton loader. See warnings and instructions both at

on loader. See warnings and instructions both at

the beginning and throughout this manual. Afterthe beginning and throughout this manual. After

the beginning and throughout this manual. After

doing service or making repairs or adjustmentsdoing service or making repairs or adjustments

doing service or making repairs or adjustments

always check function of loader.always check function of loader.

always check function of loader.

Safety glasses or goggles are always needed forSafety glasses or goggles are always needed for

Safety glasses or goggles are always needed for

eye protection from electric arcs, from shorts oreye protection from electric arcs, from shorts or

eye protection from electric arcs, from shorts or

welding, battery acid, compressed springs, fluidswelding, battery acid, compressed springs, fluids

welding, battery acid, compressed springs, fluids

under pressure, and flying debris or looseunder pressure, and flying debris or loose

under pressure, and flying debris or loose

material when engines are running or tools arematerial when engines are running or tools are

material when engines are running or tools are

used. Use eye protection approved for type ofused. Use eye protection approved for type of

used. Use eye protection approved for type of

welding. Failure to obey warnings can causewelding. Failure to obey warnings can cause

welding. Failure to obey warnings can cause

injury or death.injury or death.

injury or death.

A new machine needs a special maintenance procedure after the first 50 hours of operation. In addition to an

overall inspection of the loader, the torque of the turntable mounting bolts and pin nuts of the boom and grapple

should be checked and retorqued, if necessary. Also, hydraulic filter elements should be changed and

inspected. If excessive dirt is found, the hydraulic reservoir should be drained, cleaned, and refilled.

SPECIAL NEW-MACHINE INSTRUCTIONSSPECIAL NEW-MACHINE INSTRUCTIONS

SPECIAL NEW-MACHINE INSTRUCTIONS

PREVENTIVE MAINTENANCEPREVENTIVE MAINTENANCE

PREVENTIVE MAINTENANCE

WARNINGWARNING

WARNING

page 18page 18

page 18

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800-00152

SERVICE REQUIREDSERVICE REQUIRED

SERVICE REQUIRED

Hydraulic ReservoirHydraulic Reservoir

Hydraulic Reservoir - check level and quality

of oil.

Hoses, Connections, CylindersHoses, Connections, Cylinders

Hoses, Connections, Cylinders - Inspect for

leaks and damage. Tighten, repair, or

replace parts if necessary.

Swing Motor GearboxSwing Motor Gearbox

Swing Motor Gearbox - Check fluid level.

Motor area and ShroudsMotor area and Shrouds

Motor area and Shrouds - Clean and

inspect.

Hydraulic Oil ReservoirHydraulic Oil Reservoir

Hydraulic Oil Reservoir - On new machines

the oil must be changed after the first 50 hours,

and then every 1000 hours after that.

Hydraulic Oil FilterHydraulic Oil Filter

Hydraulic Oil Filter - On new machines the

filter element should be replaced first at 50

hrs. and then at 400 hrs. thereafter.

SERVICE SCHEDULESERVICE SCHEDULE

SERVICE SCHEDULE

1000 HRS.1000 HRS.

1000 HRS.

6 MONTHS6 MONTHS

6 MONTHS

400 HRS.400 HRS.

400 HRS.

2 MONTHS2 MONTHS

2 MONTHS

100 HRS.100 HRS.

100 HRS.

MONTHLYMONTHLY

MONTHLY

50 HRS.50 HRS.

50 HRS.

WEEKLYWEEKLY

WEEKLY

8 HRS.8 HRS.

8 HRS.

DAILYDAILY

DAILY

FittingsFittings

Fittings - Lubricate as shown on Lubrication

Points. Use a multi-purpose grease.

Bolts/NutsBolts/Nuts

Bolts/Nuts - Visually inspect for wear or

damage.

Control Lever Linkage (if applicable)Control Lever Linkage (if applicable)

Control Lever Linkage (if applicable)

- Lubricate.

Bolts/NutsBolts/Nuts

Bolts/Nuts - Check for proper

torque every 50 hours. Retorque if necessary.

Hydraulic CollectorHydraulic Collector

Hydraulic Collector - Check mounting bolts.

Hydraulic Oil Reservoir BreatherHydraulic Oil Reservoir Breather

Hydraulic Oil Reservoir Breather - Replace.

AccumulatorsAccumulators

Accumulators - Check pressure and maintain

at 900 PSI.

Hydraulic Oil FilterHydraulic Oil Filter

Hydraulic Oil Filter - Replace elements every

400 hours, after initial change at 50 hours on a

new machine.

Swing Motor GearboxSwing Motor Gearbox

Swing Motor Gearbox - Replace fluid.

Hydraulic ReservoirHydraulic Reservoir

Hydraulic Reservoir

- Replace oil and clean

suction screens.

Entire Loader -Entire Loader -

Entire Loader - Steam clean, inspect for

stress, wear, cracks, damage, and loose parts.

Electric Motor CouplingsElectric Motor Couplings

Electric Motor Couplings - Lubricate

with a multi-purpose grease.

NOTE:NOTE:

NOTE: Use the intervals on Service Schedule when operating in normal conditions. Service theUse the intervals on Service Schedule when operating in normal conditions. Service the

Use the intervals on Service Schedule when operating in normal conditions. Service theUse the intervals on Service Schedule when operating in normal conditions. Service the

Use the intervals on Service Schedule when operating in normal conditions. Service the

machine atmachine at

machine at shorter intervals when operating in very hot, cold, dusty, or humid conditions.shorter intervals when operating in very hot, cold, dusty, or humid conditions.

shorter intervals when operating in very hot, cold, dusty, or humid conditions.shorter intervals when operating in very hot, cold, dusty, or humid conditions.

shorter intervals when operating in very hot, cold, dusty, or humid conditions.

page 19page 19

page 19

275BSER

800-00152

LUBRICATIONS POINTSLUBRICATIONS POINTS

LUBRICATIONS POINTS (PERFORM DAILY)(PERFORM DAILY)

(PERFORM DAILY)(PERFORM DAILY)

(PERFORM DAILY)

GREASEGREASE

GREASE

HYDRAULICHYDRAULIC

HYDRAULIC

OILOIL

OIL

GEAR FLUIDGEAR FLUID

GEAR FLUID

Swing Motor Gearbox - EP 80-90 gear

fluid (fill until oil is as high as top of

cluster bearings - see service manual

for more information).

9 Turntable Bearing & Pinion

(at the two fittings)

10 Electric Motor Couplings

(inside shrouding)

11 Hydraulic Oil Reservoir

12 Swing Motor Gearbox

1 Grapple Arms

2 Grapple Cylinders

3 Grapple Head

4 Grapple Hanger (2 fittings)

5 Stick Boom Pivot

6 Stick Boom Cylinders

7 Main Boom Cylinders

8 Main Boom Pivot

NOTE:NOTE:

NOTE: See Lubricants section in this manual for

proper type of grease to use.

11

1

11

1

22

2

22

222

22

2

22

2

55

5

66

6

77

7

77

7

66

6

88

8

99

9

44

4

33

3

1010

10

1212

12

1111

11

When greasing Turntable Bearing and Swing

Motor Pinion, use a hand grease gun because

high pressure grease guns may damage the

seal. Rotate the machine at least two

complete revolutions for each fitting for

complete distribution of the grease. Three

shots of grease per fitting should be sufficient

on a daily basis.

1010

10

WARNINGWARNING

WARNING

Boom is shown in lifted, operating position. Always shut down the machine and lowerBoom is shown in lifted, operating position. Always shut down the machine and lower

Boom is shown in lifted, operating position. Always shut down the machine and lower

boom and attachment to the ground when not operating or before maintenance of any kind.boom and attachment to the ground when not operating or before maintenance of any kind.

boom and attachment to the ground when not operating or before maintenance of any kind.

If necessary to work on a lifted boom or attachment, securely support the boom andIf necessary to work on a lifted boom or attachment, securely support the boom and

If necessary to work on a lifted boom or attachment, securely support the boom and

attachment so that they cannot move or fall in any way.attachment so that they cannot move or fall in any way.

attachment so that they cannot move or fall in any way.

page 20page 20

page 20

275BSER

800-00152

LUBRICANTSLUBRICANTS

LUBRICANTS

HYDRAULIC OILHYDRAULIC OIL

HYDRAULIC OIL

The following lists some features to look for in an oil. The hydraulic oil for the machine should feature:

- Rust resistant additives to prevent rust formation from moisture condensation.

- Anti-foaming agents to break up air bubbles and prevent "foaming" that may cause sluggish and

erratic operation.

- High stability to resist oxidation and prevent varnish formation and deposits that foul systems.

- Anti-wear properties to prevent scuffing and exccesive wear at high speeds and high pressures.

- Good viscosity index for easy flow at low temperatures without thinning out at high temperatures after

hours of use.

46

68

ISO Viscosity

Grade

Average

Ambient Temp.

32 degrees F. to 45 degrees F.

ABOVE 45 degrees F.

System Operating Temperature

190 degrees F. Max.

150 degrees F. Max.

Below 32 degrees F. ambient, consult the factory.

For operation in different temperatures, refer to the following chart for selection of hydraulic oil.

WARNINGWARNING

WARNING

Hydraulic fluid under pressure can penetrate the skin or eyes. Fluid leaks under pressure may not beHydraulic fluid under pressure can penetrate the skin or eyes. Fluid leaks under pressure may not be

Hydraulic fluid under pressure can penetrate the skin or eyes. Fluid leaks under pressure may not be

visible. Use a piece of cardboard or wood to find leaks but do not use bare hand. Wear safety goggles.visible. Use a piece of cardboard or wood to find leaks but do not use bare hand. Wear safety goggles.

visible. Use a piece of cardboard or wood to find leaks but do not use bare hand. Wear safety goggles.

If fluid enters skin or eyes, get immediate medical attention.If fluid enters skin or eyes, get immediate medical attention.

If fluid enters skin or eyes, get immediate medical attention.

ALTERNATIVE LUBRICANTSALTERNATIVE LUBRICANTS

ALTERNATIVE LUBRICANTS

Conditions in certain geographical areas may require special lubricants and lubrication practices which do not

appear in this manual.

LUBRICANT STORAGELUBRICANT STORAGE

LUBRICANT STORAGE

The machine can operate at top efficiency only if clean lubricants are used. Use a clean container to handle all

lubricants. Store them in an area protected from dust, moisture, and other contaminants. Store drums on

sides.

GREASEGREASE

GREASE

Use grease shown on chart below, depending on the expected air temperature range.

AIR TEMPERATURE RANGEAIR TEMPERATURE RANGE

AIR TEMPERATURE RANGE

Fahrenheit ( F )Fahrenheit ( F )

Fahrenheit ( F ) -67 -40 -22 -4 14 32 50 68 86 104 122

Celsius ( C )Celsius ( C )

Celsius ( C ) -55 -40 -30 -20 -10 0 10 20 30 40 50

HIGH TEMP. /EPHIGH TEMP. /EP

HIGH TEMP. /EP

NLGI O OR INLGI O OR I

NLGI O OR I

ARCTIC GREASEARCTIC GREASE

ARCTIC GREASE

NLGI NO. 2NLGI NO. 2

NLGI NO. 2

Barko Hydraulics BARKO LOADERS 275B SER-ERS User manual

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