Kellfri 26-GAATV User manual

Read this manual carefully
before using the product!
Translated from the original
2018-10-23
26-GAATV
BACKHOE DIGGER

Table of contents

Table of contents
Introduction 3
Product information 3
For your safety 4
Incase of emergencies 4
Personal protection 4
Product safety information 5
Warning signs and labels 6
Surroundings 7
Assembly Instructions 8 - 11
Digging mode 12 - 13
Operating the machine 14
Before operating 15
Basic digging methods 16
After use 17
Maintenance and service 18 - 21
Changing motor oil 19
Hydraulic oil 22
Digging 23
Blueprint and material list 24 - 27
Warranty terms and conditions 28

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INTRODUCTION
Thank you for choosing a product from Kellfri AB. By following the general safety information
and the instruction manual and by using common sense, you will have a great and safety use
of your Kellfri product for many years. Kellfri designs and delivers eective, aordable ma-
chinery and components for forest, agriculture, construction and gardening in Sweden, other
Nordic countries and Europe.
PRODUCT INFORMATION
Compact and well-constructed backhoe digger with its own power source in the form of a 9
hp petrol motor. Digger bucket, 23 cm wide as standard. Levelling or ditch bucket available as
extras. Solid quality material thickness in construction and buckets, e.g. 8 mm steel in bucket.
Operator seat 90 cm high with good work overview. Two-lever hydraulic valve for simple and
exible excavation work, wheels for pulling behind ATV or car using 50 mm ball coupling.
When the machine has to be moved, the wheels are tted to the back making it easy to trans-
port; when excavating, the wheels are tted at the front with the stabilisers at the back and
the machine is then moved by dragging it backwards or forwards using the rst boom and
outer boom.
The product has to be assembled.
TECHNICAL SPECIFICATION 26-GAATV PETROL MOTOR
Motor 9 hp /Engine speed 3600 rpm
Reach 2 560 mm
Excavation depth 2040 mm
Digging range 120°
Maximum height of the backhoe with load 1400 mm
Width of the outrigger when mounted 2000 mm
Total width 2000 mm
Wheels 16”
Ball coupling 50 mm
Weight 466 kg
Packing size 224 cm x 99cm x 84cm
Bucket 250 mm
Oil capacity 14.6L
Cylinder 4 pcs - Cylinder Diameter & Stroke: Ø63x300mm
System pressure 16 Mpa
Operating temparature range -20°C to +30°C
INTENDED USE:
Only for excavation. Very versatile machine for all types of groundwork both for home users or
contractors working in conned spaces. Kellfri power in compact design.

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
FOR YOUR SAFETY
Before using the product, please read the safety information and instruction manual and un-
derstand its contents for your own and others’ safety. Always keep the safety information and
instruction manual easily accessible to the user of the product. Remember that it may be good
for your own and others’ safety to read the safety information every now and then. If the in-
structions manual is damaged or otherwise unusable, please contact your retailer and order
a new one
The general safety instruction is also available from Kellfri’s website: www.kellfri.com
Do not use this equipment if you are feeling sick, tired or in inuence of alcohol. Nor if you
are under the inuence of strong medications or drugs, suering from strong depression or
severe mental illness. Always follow the general trac rules and regulations and the rules of
the Animal Welfare Act. Persons under 15 years old and people with mental illness may not
use this product.
Warning!
The product must not in any circumstances be modied without permission from the
manufacturer. Unauthorized modication of the machine and/or accessories can cause
fatal injuries or death to operator or others.
INCASE OF EMERGENCIES
In case of an emergency please dial 112.
Keep cell phone or emergency phone available specially when working alone. First aid kit and
re extinguishers must be kept easily accessible during all work, maintenance and service.
PERSONAL PROTECTION
Always wear suitable clothing and footwear. Do not wear loose clothing or jewelry when using
the machine. Remember to put up long hair when operating rotating machines. Wear protec-
tive gloves, to prevent risking burns on contact with hot surfaces such as exhaust system, and
to avoid oil and gasoline on the skin. Hearing protection should be used when the engine is
running. Eye protection and protection mask should be use when necessary.

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PRODUCT SAFETY INFORMATION
• Always read the instructions carefully before using the backhoe!
• Never leave the equipment whilst the motor is running. Turn o the motor when you leave the
equipment - even for a short while.
• Always disconnect the equipment before performing service or maintenance work.
• Only you who are operating may be in the vicinity of the machine during work.
• Do not use the equipment without all guards are mounted correctly
• Keep the work area free of bystanders and animals and make sure you always have enough elbow
room for the unit.
• Always operate from the operating position
• Use the backhoe only for the work it is intended for. Do not use the machine to draw things, as a
battering ram or lifting assembly. Do not mount ropes, chains, etc. on the device.
• Never dig too close to the outriggers. The ground can collapse underneath the backhoe.
• Never overload the equipment and / or exceed digging capacity.
• When working on slopes, dig with the unit towards the uphill and avoid turning the unit towards the
downhill side. Avoid digging on slopes that could cause the towing vehicle to tip over.
• Reduce speed when driving on uneven terrain, slopes or when turning to prevent the towing vehicle
to tip over.
• Do not adjust the valve settings. Wrong adjustment may result in damage to the machine and / or
injury.
• Upon disembarking from the unit, lower the unit’s bucket and support legs to the ground. Turn o
the engine
• The operator nor other person must never be underneath any suspended load
• The equipment must not be parked with loaded bucket with the bucket up lifted.
• Due to the backhoe is not equipped with a lighting device, use the backhoe during day light.
• During transport on public roads a Slow Moving Vihecle sign (SMV- sign) mustbe attached to the rig.
• Never allow children or any unexperience person use the machine.
• Never allow anybody to ride on the backhoe during transport!
• Never transport any load on the backhoe during transport.
• Never use the machine with faulty safety details.
• Shut down the machine and release all pressure from the system before you leave it or before start-
ing maintenance or service.
• Please contact relevant authorities when digging near burried pipelines or electric lines. Never dig
on the ground without thouroughly examining the area.
• Don’t allow anybody to climb on top of the backhoe!
• Start the motor only on well ventilated area and never leave the machine whilst the motor is running.
• Never top up the engine with fuel when the engine is stil hot. Let the engine cool down for a couple
of minutes before refueling.
Warning!
For safety, this product should only be used in the manner described in this
manual. The user is responsible for the instruction to be read through and
followed.

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WARNING SIGNS AND LABELS
Ensure that warning labels are always visible and clean. Clean the warning labels as required.
Do not rinse using pressure washer directly on the warning labels. Any damage/ broken
stickers should be replaced. Order new stickers from your supplier.
SYMBOL EXPLANTION
Read the operating manual! Before carrying out work
Warning! Before maintenance, servicing, connecting and
disconnecting the machine, the motor must be switch o
and the ignition key removed.
Danger zone 25 m
Warning! Accident risk for children!
Children are not allowed in the vicinity ofthemachine.
Warning electric cable!
Risk of crushing hands
Risk of crushing feet
Warning! Never stand under suspendedload.
Warning! Escaping oil from hydraulic hoses under pressure
can penetrate skin!
Warning! Rotating parts! Risk of crushing.
Greasing after 10 hours of operation.
Always use stabilisers when digging.
Tighten all bolts and connections.
The product is CE-marked.

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SURROUNDINGS
Make sure your working area is clear from people, children and objects before installing and
using the machine. Risk of serious injuries can occur during operation. Take an extra caution
when children are in the area where the equipment/ product is being use or stored. Check
the area for low hanging electrical wires. Be careful when working on slopes and near ditches.
Always work alone with single - purpose tools/products. Never have junk lying in your area.
Keep working areas clean. Always respect the risk zone.
DANGER!
Children in the area should be supervised.
SAFETY MEASURES BEFORE OPERATING
Read the safety information and instruction manual carefully. Be sure you understand the safe-
ty measures, instruction manual and warning labels. Use common sense when operating the
machine and use appropriate personal protective equipment.
Always check the performance and the machine combination that are used. It’s highly import-
ant these matches in a satisfactory manner. This is to ensure the product or the function and
most important yours and others safety.
Do visual inspection of equipment or product before use. Fix or replace damaged or worn
parts immediately to reduce the risk of injury. Lubricate moving parts and check that all screw-
nuts and bolts are tightened.
Learn and remember the correct working methods. Beginners should always keep a low
speed, use extreme caution before routine and product knowledge is achieved. The user/cus-
tomer is responsible to handle the situation correctly. The product should not be taken into
use unless it can be done in a safe way for the user.
• Ensure that all nuts, bolts and ttings are securely attached, that all packing / shipping
supplies such as tape, steel tape, rope, etc. are removed.
• Make sure that the oil level in the engine is correct.
• Ensure that all guards are in place and can not come o before use.
• Before starting the operation, check that the backhoe digger is on operating mode
• Make sure that the backhoe digger is placed on stable ground
Warning!
Never use faulty safety equipments!

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
ASSEMBLY INSTRUCTIONS
Because of the weight of the machine, it is recommended that the unpacking and assembly
are carried out by two people. The following instructions describes the assembly of the back-
hoe.
STEP 1: Assemble the Wheel Leg.
a. Insert the wheel leg into the Backhoe Frame, insert the Safety pin (#42) then lock with R Pin
(#41).
STEP 2: Assemble the Arm.
a. Connect the Short Arm assembly with Long Arm Assembly by using Axis Pin (#86),Washer
Ø38 (#114) and lock with Cotter Pin (#84).
b. Connect the cylinder on the long boom to the short boom by using Short PinØ30x97
(#63),Flat Washer Ø24,and lock with Cotter Pin Ø4x50 (#55).

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c. Attach the Long Arm to the Swivel Bracket Assembly by using Axis Pin(#86),Washer Ø38
(#114) and lock with Cotter Pin (#84).
d. Put the Arm to the Backhoe Frame by using Long PinØ30x170 (#85),Flat Washer Ø24 (#115),
and lock with Cotter Pin Ø4x50 (#55).
Note: The Pin (#85) is a safety Pin. Remove it before using the machine and insert it when you
want remove.
STEP 3: Assemble the Swivel Cylinder.
a. Attach the Cylinder (#59) to the Swivel Cylinder Base by using the Pin Ø30x124 (#54),Flat
Washer Ø24 (#115),then lock with Cotter Pin Ø4x50(#55).
b. Connect the Cylinder (#59) to the Swivel Bracket Assembly by using Short PinØ30x97
(#63),Flat Washer Ø24 (#115),then lock with Cotter Pin Ø4x50 (#55).

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STEP 4: Assemble the Seat, Control Valve and Coupler
a. Attach the Seat (#16) to the Frame by using Hex Bolt 5-16”-3/4” (#68),Flat WasherØ8
(#21),Lock Washer Ø8 (#22).
b. Attach the assembled of control valve to the valve plate by using Bolt M10x20 (#81) and
Nylon Lock Nut M10 (#19).
c. Insert the Outrigger (#78) to the square tube, then insert the Pin (#42) and lock with R Pin
Ø3x55 (#41).
d. Insert the Fixed Pin Ø19x50 (#89) into the Backhoe Frame, lock with R pin (#41).
e. Attach the coupler (#37) to the tow bar by using Hex Bolt M12x80 (#38),Flat Washer Ø12
(#39) and Nylon Lock Nut M12 (#40).
f. Attach the two chains (#103) to the tow bar by using Hex Bolt M12x90 (#107),Flat Washer
Ø12 (#39), Nylon Lock Nut M12 (#40) and Thick Flat Washer Ø12 (#67).
Note: The Pin (#89) is a safety Pin. Remove it before using the machine and insert it when you
want remove.

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STEP 5: Connect the Hydraulic Hose.
a. Attach the Hydraulic hose 1A to the Connector of Valve 1A (as the label).
b. Attach the Hydraulic hose 1B to the Connector of Valve 1B(as the label).
c. Assemble others as above.
Note: HYDRAULIC HOSE LINE: Attach the Hydraulic Hose 1A & 1B at the right side of Arm, use
the Clamp Clip to lock it. Attach other Hydraulic Hoses at the left side of Arm, use the Clamp
Clip to lock the hydraulic hose of 2A & 2B.
When lling up the tank with hydraulic oil for the rst time:
Fill the tank with oil between red and black lines. Start the engine, operate the control valve
levers and run all function to let the oil ow into the system and the cylinders get lled with
oil, then rell the tank with oil to between red and black lines.
Oil screw
Oil window
No. Description Qty.
24 Hydraulic hose 700 mm 2
61 Hydraulic hose 1100 mm 1
71 Hydraulic hose 850 mm 1
99 Hydraulic hose 2850 mm 1
100 Hydraulic hose 2550 mm 1
101 Hydraulic hose 2100 mm 1
102 Hydraulic hose 1700 mm 1

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DIGGING MODE
After towing the backhoe to the desired location, follow these set-up instructions. Do not sit
on the backhoe while setting it up.
1. Remove outriggers from the attachment and set them aside. This reduces weight. Outrig-
gers are heavy, use lifting device when lifting.
2. Be sure to remove the up-down and side-to side travel pins. Keep these two pins to re-in-
sert for towing.
UPDOWN
TRAVEL PIN
SIDESIDE
TRAVEL PIN
Disconnect the backhoe from the towing vehicle
3. Pull lever #2 towards left until wheels elevate o the ground 4-5 inches.
4. Remove wheels. Looking at until as if you were sitting is operator seat, put outrigger in
front left slot,secure with pin and put front wheel by rear right slot. Install other outrigger
in front right slot, secure with pin and put front right wheel by rear left slot. Lower wheels
by pushing lever #2 right.
5. Position bucket next to the right side outrigger. Elevate the right side of the unit by pull-
ing lever #2 left until right side balances enough to install back-right wheel into slot. The
right outrigger should be about 2feet of the ground .Install back right wheel into slot and
secure with pin.
6) Lower right side of until by pushing lever #2 right to where the outrig-
ger is touching the ground and the at part of the bucket is ush to the
ground .Insert the back-left wheel into the slot and secure with pin. If
needed, move bucket next to the left outrigger and elevate the left side
to allow wheel to be inserted in to slot. Make sure all pins are secure.
The backhoe is now in digging mode. Read the entire manual before attempting to operate the
backhoe. Like any industrial tool, proper training and preparation are needed to safely and
eciently operate the backhoe.

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DIGGING MODE
TOWING MODE
SIDE/SIDE TRAVEL PIN
UP/DOWN TRAVEL PIN
Travel pins removed
Travel pins installed
12

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OPERATING THE MACHINE
Only people who understand the safety information and instructions in this manual may op-
erate the equipment. Be alert and careful when working with the machine and only use the
tool or product in the manner described in this manual. When working with equipment that
has moving parts, there is always the risk of injury. Be careful when working with equipment
equipped with hydraulic hoses ,oil under pressure can penetrate the skin. Seek medical at-
tention immediately if this occurs. Always work alone with the tools that are dened as single
porpose tools. Respect the equipment’s danger zone.
NEVER drive or move the towing vehicle /ATV when someone is sitting on the operating po-
sition!
The excavator has two control levers (see picture below). Read the safety precaution in the
manual before using the machine. Remember: Left and Right are determined by the position
of the operator sitting on the deck and steering toward the bucket.
LEVER 1
LEVER 2
UP
DOWN
BOOM
OPEN
CLOSE
BUCKET
LEFT RIGHT
TURN
OUT
IN
FOLDING ARM
21
Folding arm
OUT
Folding arm
IN
Boom
DOWN
Boom
UP
Turn
LEFT
Turn
RIGHT
Bucket
DOWN
Bucket
UP

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BEFORE OPERATING
Before digging, it is good to plan the work. There are certain things one must take into ac-
count. The operator should inspect the area of operation and control potential hazards in the
area. The operator should have a complete understanding of the work that will be performed.
Having familiarized with the work, it is time to plan the digging. Position the backhoe in a
way you do not need to reposition the machine throughout the digging and to maximize the
eciency of the machine.
Before starting he operation, dig carefully in the area where object/objects are expected to
be. If you feel that the bucket come inte contact with any objet, stop digging and examine
the ground.
Operate the machine only seated on the operating station by the levers. Manuevering the
backhoe using another method can cause injuries or even death.
DANGER!
CAUTION! Never allow anyone unexperienced drive / operate the machine.
• Before starting the operation, make sure that the outriggers and wheels are rmly placed
on the ground.The ground should not inclned more than 10º. When the backhoe is in po-
sition, mount the outriggers on the ground.Take the time needed to learn the function of
the levers. Description of the levers, which lever controls which movement are illustrated
on the cover plate. By learning the movements and training correct method means safer
work and more ecient driving.
• Position the bucket perpendicular to the ground.
• Strech the arm, lower the boom until you feel the resistance on the ground. Be carefull
not to lower the boom too much so that the outrigger lifts from the gound.
• To start digging bend the bucket, if any movements causes the outriggers to move lift the
digging arms a little bit to allow the the outriggers feet to sink into the gound.
• When the digging process is nish, bend the bucket inwards. Lift the digging arm and
move aside and empty the bucket.

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BASIC DIGGING METHODS
When you start digging, always start the rst cut thoroughly and be sure to follow the con-
tour. The reason for this is to minimize the damage on the ground and the bucket. The rst
cut is also important because this will serve as a template for the remaining cut, following the
rst cut carefully will make future digging more precise.
WORKING DIRECTION
During digging with the backhoe,extend the arm away from the operator. Lower the arm and
the bucket and start digging. The bucket’s teeth should be 30º to 45º towards the ground.
When the digging begins, bend the bucket until the teeth is horizontal to the ground. Pull
the bucket toward the operator and operate with the lever to hold the bucket at the right lev-
el. While the bucket moves towards the operator, adjust the arm to maintain an even cutting
level. At the end of the digging cycle, bend the bucket completely inwards while lifting the
arm from the excavation. Turn the arm to the side and tip the bucket’s contents on the place
you want it to be. Start tipping the bucket before approaching the pile. When the bucket is
empty, turn back the arm and position the bucket for the next digging process. The entire
digging process should be smooth until the excavation is complete.
When the digging is almost nished, at about 15 cm remaining to dig. Clear and press the
sides of the excavated hole. Use the at side of the bucket to scrape any high spots. Clear
stones that stand out if they seem to be loose. To nish walls, dig the far wall by bending the
bucket outward and lower the arm downward. To nish the nearest wall, bend the bucket
inwards and lift the arm upward.
When the walls are ready, nish the bottom of the hole.

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AFTER USE
Parking is not allowed with the cargo above ground, but is done with the equipment resting
on the ground. Rinse the tool with water if necessary.
TRANSPORT AND STORING
Make sure there are no people, children and foreign objects around the area before transport-
ing the machine. Always take an extra caution during the transport. Ensure that the product
is well secured and that transport brackets are mounted. Always place the load as low as pos-
sible. Respect the danger zone even during transport. When lifting the equipment, never go
underneath suspended loads. Trailer used for transport should have working brakes.
Always store the machine in a dry place preferably underneath a cover when not in use. Ensure
that the product is stable and not likely to tip over. Never let children play where the machine
is being stored. Always keep in mind the risk of tipping!
TRANSPORT
• Before transportation; ensure that the arm and the swing arm is locked to prevent uncon-
trolled movements. Raise the boom and bucket to transport position. Mount the trans-
port safety devices. Raise the support legs.
• Ensure that the backhoe is correctly mounted on the towing vechicle before towing
• Drive slowly on uneven terrain, do not drive too close to slopes and pits.
STORAGE
Before storage, ensure that the machine is clean, wash away all the dirt from the backhoe. Lu-
bricate the exposed cylinder rods. Lubricate all the joints, make sure that the hydraulic system
is sealed against contamination. When storing, place the machine in a dry place and cover it
if possible.
• Clean the machine to help detect damage
• Check all hoses and couplings before connecting the unit to the power outlet. Check for
leaks after the connection.
• Check joints so that they have sucient lubrication for smoother work,
• Check and tighten bolts if necessary.kraftuttaget. Kontrollera efter läckage efter tillkop-
plingen

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
MAINTENANCE AND SERVICE
Ensure that the unit is stable and cannot tip over during maintenance and service. Replace
damaged or worn parts immediately to reduce the risk of abrasion. Always perform mainte-
nance, service and inspection, as recommended. Use only original replacement parts or spare
parts with equivalent performance to reduce the risk of damage. All repairs and connections
with electricity must be performed by a qualied person. Check all nuts and bolts are tight-
ened after performing maintenance and service. Always test the machine before using it.
• Regularly check the condition of the machine before a crash is a fact. If cracks, twisting,
bending, glitches or exhaustion are discovered then stop work and x the problem.
• Tighten all screws and nuts after a few hours of work, and after that every day when
working with the machine.
• Disconnect the equipment from the towing vehicle when any malfunction being re-
paired.
• Never perform reparation of the hydarulic system without rst ensuring that there is no
pressure in the system.
• Never work underneath suspended loads.
• Check all bolts and nuts are tightened after maintenance and service. Always test the
machine before work is started.
• Turn o the engine and move the hydraulic levers in every direction to release pressure
that may be present in the oil hoses and tubes before work with them or the hydraulic
cylinders is started.
• Clean the lter in the suction line after 10 hours of work.
• Check all parts for wear and tighten bolts, nuts or screws, if necessary.
• Immediately replace hydraulic hoses if cracks or wear occurs.
• Check that the hoses do not touch sharp edges, correct if necessary.
• Lubricate all lubricating points before and after each use.
• If leaks occur, retightened the leaking joints. Do not tighten the couplings more than
needed. In case of overload they may be destroyed.
Always work alone with single - purpose tools/products. Never have junk lying in your
area. Keep working areas clean. Always respect the risk zone.
Due to a hydraulic system is never 100% tight, a hydraulic system control should be performed
before the equipment is operated. Leakage can occur due to internal leakage in the tractor’s
valve, internal leakage in the equipment’s hydraulic cylinder etc. Check the extent of the leak
by running the equipment’s cylinder in end position and keep up the pressure for 1 min. If the
cylinder begins to “wander” in the other direction then there is a leakage in the gasket. Gasket
or cylinder must be replaced.
DANGER!
Be careful when working with equipment that has hydraulic hoses because
the oil under pressure can penetrate the skin. Never use the hands when
searching for leakages. Use a piece of cardboard.

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Regular maintenance is the key to long life of the machine and safe operation. It is im-
portant that the maintenance function is made and followed.
EVERY 8 HOUR OF OPERATION:
WARNING: The engine must be switched o BEFORE LUBRICATION IS IMPLEMENTED
Lubricate moving parts carefully (arm and the end of all cylinders). Unnecessary wear and
mechanical damage may be a result from insucient lubrication. Use the universal lubricant.
IMPORTANT! Avoid lubricating too much. Dirt is collected in exposed grease and leads to in-
creased wear. After greasing, wipe o excess grease from the ttings.
EVERY 40 HOUR OF OPERATION: :
Check Hydraulic oil level. If the oil level is low, check for leaks in the hydraulic system.
IMPORTANT! Checking the oil level should be done with the backhoe in transport position.
Check for wear on all pins, bushings, cotter pins, bolts, nuts, etc. tighten all bolts and replace
if necessary.
MAINTENANCE BEFORE STORING THE MACHINE
When performing maintenance work the machine must be in maintenance mode
1. Turn o the engine.
2. Move the levers back and forth when the engine is turned o to release the pressure on
the hydraulic system.
3. Set the machine on the ground.
4. Remove the spark plug cap.
5. Clean the machine from dirt. If the machine is equipped with a spark arrestor, check its
conditions and replace if damaged.
6. Check all bolts and nuts are tightened to make sure that the machine is functioning as it
should.
7. Check the intake lter.
When storing for a longer period time:
Before the storage, be sure to follow the instructions below
• Drain the engine from fuel or add stabilizer to the fuel to prevent fuel from thickening
• If you have added stabilizer, run the engine for about 5 minutes
• Turn o the engine
• Pull the lever back and forth to release the hydraulic pressure
• Remove the spark plug
• Replace the spark plug
• Never store the product where there is a risk of re. Allow the engine to cool down before
storing it
CHANGING MOTOR OIL
Use the correct type of oil depending on temperature conditions.
Use SAE W- or SAE-.
See table:

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
SERVICE INTERVAL MEASURE
Tires • Before each run • Check the pressure, recommended
tire pressure is written on the tire
Hoses • At each use • Check for damage and leaks. Replace
damaged and broken hoses before
use
Hydraulic Couplings • At each use • Check for damage. Replace broken or
damaged, if necessary
Nuts and Bolts • At each use • Check, tighten if necessary
Hydraulic oil • At each use • Check the level and top up if neces-
sary. Change oil regularly.
Mounting Pin • At each use • Check, lubricate
Inlet lter • Regularly • Change
RECYCLING
Disposal of the product, disassemble and transport to the municipality’s recycling station.
Contact your local authority for further information
ERROR REASON MEASURE
The backhoe arm can not lift
or swing
• Low oil level
• Turn speed control valve
is closed or not properly
connected
• broken hydraulic hose
• Arm joint is blocked
• Broken / bad cylinder
• Rell oil
• Open / connect valve
• Check for leaks in the system
• Remove objects blocking the joint
• Replace cylinder
The backhoe lifts / swings slowly • The oil is cold
• The engine haven’t come up
on the right speed
• Leaking cylinders
• Dirty lter
• Congestion / broken valve
• Wait until the oil comes up to the right
temperature
• Check engine and higher up the speed
• Replace cylinder gaskets
• Clean or replace
• Check the valves and replace if necessary
The oil gets overheated • Dirty oil
• The inlet lter is clogged
• Safety valve is incorrectly set.
• Engine runs too fast.
• Bad driving, causes excessive
oil ow on the valves.
• Broken oil pipeline.
• Wrong type of oil in hot
weather
• Change the oil and oil lter
• Cleaning the lter element
• adjust the valve
• Decrease the speed
• Learn correct and smooth driving
• Replace broken pipes
• Use recommended oil