Baumr-ag Bpx900 User manual

Post Hole Digger BPX900

User Manual

[Revision 6.0 December 2017]

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY

DAMAGE AND MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by

this manual may vary in appearance, assembly, inclusions, specifications, description and packaging.

Post Hole Digger BPX900

Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or

equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be INJURED if you

do not follow instructions or

equipment damage may occur.

It is vital that you read and understand

this user manual before using the product,

including safety warnings, and any

assembly and operating instructions.

Keep the manual for future reference.

Safety precautions and recommendations

detailed here must be fully understood

and followed to reduce the risk of injury,

fire, explosion, electrical hazard, and/or

property damage.

Safety information presented here is

generic in nature – some advice may not

be applicable to every product. The term

"equipment" refers to the product, be it

electrical mains powered, battery powered

or combustion engine powered.

•Before Use - If you are not familiar with

the safe operation/handling of the

equipment, or are in any way unsure of

any aspect of suitability or correct use

for your application, you should

complete training conducted by a

person or organization qualified in safe

use and operation of this equipment,

including fuel/electrical handling and

safety.

•Do NOT operate the equipment in

flammable or explosive environments,

such as in the presence of flammable

liquids, gases or dust. The equipment

may create sparks or heat that may

ignite flammable substances.

•Keep clear of moving parts.

•Equipment may be a potential source of

electric shock or injury if misused.

•Do NOT operate the equipment if it is

damaged, malfunctioning or is in an

excessively worn state.

•Do NOT allow others to use the

equipment unless they have read this

manual and are adequately trained.

•Keep packaging away from children -

risk of suffocation! Operators must use

the equipment correctly. When using

the equipment, consider conditions and

pay due care to persons and property.

General Work Area Safety

•Work areas should be clean and well it.

•Do not operate the equipment if

bystanders, animals etc are within

operating range of the equipment or the

general work area.

•If devices are provided for connecting

dust extraction / collection facilities,

ensure these are connected and used

properly. Dust collection can reduce

dust-related hazards.

General Personal Safety

•Wear appropriate protective equipment

when operating, servicing, or when in

the operating area of the equipment to

help protect from eye and ear injury,

poisoning, burns, cutting and crush

injuries. Protective equipment such as

safety goggles, respirators, non-slip

safety footwear, hard hat, hearing

protection etc should be used for

appropriate equipment / conditions.

Other people nearby should also wear

appropriate personal protective

equipment. Do not wear loose clothing

or jewellery, which can be caught in

moving parts. Keep hair and clothing

away from the equipment.

•Stay alert and use common sense

when operating the equipment. Do not

over-reach. Always maintain secure

footing and balance.

•Do not use the equipment if tired or

under the influence of drugs, alcohol or

medication.

•This equipment is not intended for use

by persons with reduced physical,

sensory or mental capabilities.

General Fuel Safety

•Petrol/fuel/gasoline is extremely

flammable – keep clear of naked flames

or other ignition sources.

•Do not spill fuel. If you spill fuel, wipe it

off the equipment immediately – if fuel

gets on your clothing, change clothing.

•Do NOT smoke near fuel or when

refuelling.

•Always shut off the engine before

refuelling.

•Do NOT refuel a hot engine.

•Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly.

•Always refuel in well ventilated areas.

•Always check for fuel leakage. If fuel

leakage is found, do not start or run the

engine until all leaks are fixed.

General Carbon-Monoxide Safety

•Using a combustion engine indoors

CAN KILL IN MINUTES. Engine

exhaust contains carbon-monoxide – a

poison you cannot smell or see.

•Use combustion engines OUTSIDE

only, and far away from windows, doors

and vents.

General Equipment Use and Care

•The equipment is designed for

domestic use only.

•Handle the equipment safely and

carefully.

•Before use, inspect the equipment for

misalignment or binding of moving

parts, loose components, damage or

any other condition that may affect its

operation. If damaged, have the

equipment repaired by an authorised

service centre or technician before use.

•Prevent unintentional starting of the

equipment - ensure equipment and

power switches are in the OFF position

before connecting or moving

equipment. Do not carry equipment

with hands or fingers touching any

controls. Remove any tools or other

items that are not a part of the

equipment from it before starting or

switching on.

•Do not force the equipment. Use the

correct equipment for your application.

Equipment will perform better and be

safer when used within its design and

usage parameters.

•Use the equipment and accessories

etc. in accordance with these

instructions, considering working

conditions and the work to be

performed. Using the equipment for

operations different from those

intended could result in hazardous

situations.

•Always keep equipment components

(engines, hoses, handles, controls,

frames, housings, guards etc) and

accessories (cutting tools, nozzles, bits

etc) properly maintained. Keep the

equipment clean and, where

applicable, properly lubricated.

•Store the equipment out of reach of

children or untrained persons. To avoid

burns or fire hazards, let the equipment

cool completely before transporting or

storing. Never place or store the

equipment near flammable materials,

combustible gases or liquids etc.

•The equipment is not weather-proof,

and should not be stored in direct

sunlight, at high ambient temperatures

or locations that are damp or humid.

•Do not clean equipment with solvents,

flammable liquids or harsh abrasives.

•For specific equipment safety use and

care, see Equipment Safety.

Post Hole Digger BPX900

General Electrical Safety

•Inspect electrical equipment, extension

cords, power bars, and electrical fittings

for damage or wear before each use.

Repair or replace damaged equipment

immediately.

•Ensure all power sources conform to

equipment voltage requirements and

are disconnected before connecting or

disconnecting equipment.

•When wiring electrically powered

equipment, follow all electrical and

safety codes.

•Wherever possible, use a residual

current device (RCD).

•High voltage / high current power lines

may be present. Use extreme caution

to avoid contact or interference with

power lines. Electrical shock can be

fatal.

General Electrical Safety

•Electrically grounded equipment must

have an approved cord and plug and be

connected to a grounded electrical

outlet.

•Do NOT bypass the ON/OFF switch

and operate equipment by connecting

and disconnecting the electrical cord.

•Do NOT use equipment that has

exposed wiring, damaged switches,

covers or guards.

•Do NOT use electrical equipment in wet

conditions or in damp locations.

•Do NOT use electrical cords to lift,

move or carry equipment.

•Do NOT coil or knot electrical cords,

and ensure electrical cords are not trip

hazards.

General Service Information

•The equipment must be serviced or

repaired at authorised service centres

by qualified personnel only.

•Replacement parts must be original

equipment manufacturer (OEM) to

ensure equipment safety is maintained.

•Do NOT attempt any maintenance or

repair work not described in this

manual.

•After use, the equipment and

components may still be hot – allow the

equipment to cool and disconnect

spark plugs and/or electrical power

sources and/or batteries from it before

making adjustments, changing

accessories or performing repair or

maintenance.

•Do NOT make adjustments while the

equipment is running.

•Perform service related activities in

suitable conditions, such as a

workshop.

•Replace worn, damaged or missing

warning/safety labels immediately.

Post Hole Digger BPX900

Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on

your product and their meanings. If any stickers become unreadable, unattached etc, replace them.

Flammable Material Hazard

Flammable liquids, gases or

substances etc may present.

Avoid ignition sources and

open flames. Danger of fire.

Read User Manual

Read and fully understand

product safety warnings,

operation, procedures etc

before using the product.

Use Hand Protection

Wear appropriate hand

protection and take due care

as the product or use of the

product may present hand

hazards.

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Electrocution / Electrical

Shock Hazard

High voltage or high current

electricity may be present or

required by the product. Take

due care when handling

electrical products, cables,

plugs and leads. Electrical

shock can be fatal.

Toxic Fumes hazard

Using the product or by-

products from use may

produce fumes, smoke or

particles that could be harmful

if inhaled. Wear appropriate

breathing protection and have

adequate ventilation.

Explosive Material Hazard

Combustible liquids, gases or

substances etc may be

present. Avoid ignition sources

and open flames. Danger of

explosion.

Cutting / Amputation Hazard

The product may have blades,

edges or mechanical devices

that can cause severe cut

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Crush Hazard

The product may have blades,

edges or mechanical devices

that can cause severe crush

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Single Operator Only

The product must be operated

by a single person only. More

than one person operating the

product may introduce

additional hazards.

Use Face Protection

Wear appropriate full-face

protection and take due care

as the product or use of the

product may present face and

eye hazards.

Use Foot Protection

Wear appropriate foot

protection and take due care

as the product or use of the

product may present foot

hazards.

Use Eye / Ear / Head

Protection

Wear appropriate eye and / or

ear and / or head protection

and take due care as the

product or use of the product

may present eye, hearing and

head hazards.

Running Hazard

Do not run on or near the

product as doing so may

present a fall hazard.

Diving Hazard

Do not dive into the product as

doing so may present a neck /

head injury hazard.

Adult Supervision Required

Always supervise children and

other users of a product to

prevent drowning or injury.

Skin Penetration / Puncture

Hazard

The product may produce

pressure, emit liquids or

objects that can cause severe

injury to fingers, limbs, blood

etc. Take due care when

handling and using the

product.

Hot Surface Hazard

Be aware that the product may

produce high temperatures

and hot surfaces that can

cause burn injuries.

Flying Debris Hazard

Be aware that the product or

use of the product may

present hazards produced by

flying debris. Wear appropriate

clothing and protectiove

devices.

Moving Parts Hazard

Be aware that the product

contains or uses mechanical

devices that move or rotate.

Always wait for moving parts

to stop fully before handling

the product, adjusting,

maintenence etc.

Post Hole Digger BPX900

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Pull Hazard

Be aware that the product

contains or uses mechanical

devices that can pull in objects

and can cause severe injury to

fingers, limbs etc. Take due

care when handling and using

the product.

Slope / Fall Injury Hazard

Be aware that using the

product on sloping surfaces or

in slippery conditions may

present additional dangers

from falls and contact with

blades, moving parts, hot

surfaces etc.

"Slam Dunk" Warning

Do NOT attempt "slam dunk"

maneouvres as this may result

in severe injury due to falling,

product breakage or collapse

etc.

Electrocution / Electrical

Shock Hazard - Outdoor

High voltage or high current

electricity may be present or

required by the product. Do

NOT use in rain, damp or wet

conditions. Electrical shock

can be fatal.

Electrocution / Electrical

Shock Hazard - Disconnect

High voltage or high current

electricity may be present or

required by the product.

Always disconnect the product

from the electrical supply

before handling the product,

adjusting, maintenence etc.

Power Line Electrocution

Hazard

High voltage / high current

power lines may be present.

Use extreme caution to avoid

contact or interference with

power lines. Electrical shock

can be fatal.

"Kick-Back" Hazard

High level of "kick-back"

hazard that can cause the

machine to suddenly rotate

towards operator. Kick-back

injury can be fatal.

Winch Operator Position

Hazard

Do NOT stand between winch

and load. Do NOT use winch

to move people.

Winch Lift Hazard

Do NOT LIFT load vertically.

Use machine to PULL only.

Cable Hazard

Ensure that load bearing cable

is not kinked or knotted.

Winch Cable Hazard

Ensure that there is a

minimum number of cable

coils on winching mechanism.

Winch Hook Hazard

Carry hook to load – do NOT

throw or run.

Post Hole Digger BPX900

Equipment Safety

Post hole diggers are high-speed, fast-cutting equipment with exposed blades that can cause

serious injury if not used correctly or without taking proper safety precautions. It is

extremely important that you read and fully understand the information in this section and all other

safety warnings / recommendations and usage instructions before using the equipment.

Operator

•If you are untrained in the use of a hole digger, it is highly recommended that you be trained/instructed

by a suitably qualified or experienced post hole digger user before using the machine.

•Fully understand how to safely operate the machine and the digging process. See Post Hole Digger

Operation.

•You must be in good physical condition to use a digger. NEVER operate the machine when tired, or

under the influence of any substance (medication, alcohol, drugs etc) that may impair your judgement,

alertness, physical strength, vision or dexterity.

•Maintain sure-footing and balance always when using or handling the digger and have full awareness of

your surroundings and any possible hazards.

•Prolonged digger use may lead to health complications, such as carpal tunnel syndrome, due to

vibration. To help reduce the possibility of such conditions, wear gloves, take breaks frequently, keep

fingers and hands warm, and maintain the equipment for optimal operation and minimal vibration. It is

recommended to seek medical advice if you feel numbness or burning sensations in fingers/hands.

Clothing and Protective Equipment – All Operators and Assistants

•Wear approved safety goggles, or safety glasses with adequate top and side protection..

•Wear suitable hearing protection.

•Wear heavy-duty, non-slip leather or protective gloves.

•Wear approved heavy-duty safety boots, with steel toe-caps and non-slip soles.

•Wear suitable overalls or work clothing that fits snugly, but does not restrict movement. Avoid loose

fitting clothing, scarves, jewellery etc and keep long hair contained to avoid getting caught or pulled by

the chainsaw or by tree branches etc.

Work Area Safety

•Use EXTREME CAUTION to avoid power cables – contact can be fatal. Also be aware of plumbing,

water and gas pipes etc. If in any doubt, do NOT dig – contact the appropriate organisation or authority

for information before digging.

•Be aware of fire risks resulting from machine use. Ensure that the machine exhaust and spark arrestor (if

equipped) is well maintained and that engine is tuned correctly.

•Refuel outdoors only. Avoid fuel spillage. Start the machine at least 3m (10') away from the fuelling

location.

Operational Safety

•Do NOT use the machine if the throttle or any safety guard or mechanism is not installed or is not

operating correctly – have the machine inspected and repaired at an authorised service centre before

using it again.

•Always hold the machine firmly with both hands during operation. Always use the machine handles.

•Do NOT use any auger attachment that is cracked or damaged in any way – replace it.

•Ensure the auger is not obstructed before digging.

•Ensure that all auger attachments are fully secured before digging.

•If the auger jams, release the throttle trigger and stop the engine immediately.

Post Hole Digger BPX900

•Do NOT use the equipment for purposes it is not designed for, such as cutting concrete.

•Do not attach the machine to fixed supports.

Transportation Safety

•Always STOP the engine before putting the machine down, transporting or working on it (refuelling,

adjusting etc).

•When transporting the machine in a vehicle, ensure the engine is OFF, the auger is disconnected, and

the machine is secured in an upright position to prevent tip-over, machine damage or fuel spills.

Post Hole Digger BPX900

Table of Contents

Safety...................................................................................................................................................2

Safety Symbols..........................................................................................................................................4

Equipment Safety...............................................................................................................................6

Parts Identification...........................................................................................................................10

Engine and Machine Components...........................................................................................................11

Before Use Checklist.......................................................................................................................12

Assembly .................................................................................................................................................12

Air Filter....................................................................................................................................................13

Fuel..........................................................................................................................................................13

Priming the Fuel System....................................................................................................................13

Attaching the Auger..................................................................................................................................14

Engine Starting and Stopping........................................................................................................15

Starting the Engine...................................................................................................................................15

Stopping the Engine.................................................................................................................................15

Environmental Considerations.................................................................................................................15

Post Hole Digger Operation............................................................................................................16

Using the Throttle and Adjusting Drilling Speed.......................................................................................16

Maintenance .....................................................................................................................................17

Maintenance Schedule – 2-Stroke Engine / Machine...............................................................................18

Air Filter....................................................................................................................................................19

Inspection and Cleaning....................................................................................................................19

Removal/Installation..........................................................................................................................19

Spark Plug ...............................................................................................................................................20

Cleaning and Gap Checking..............................................................................................................20

Removal/Installation..........................................................................................................................20

Fuel Strainer ............................................................................................................................................21

Inspection and Cleaning....................................................................................................................21

Removal/Installation..........................................................................................................................21

Gearbox...................................................................................................................................................22

Cleaning Guidelines.................................................................................................................................22

Cleaning and Lubricating Cutters ......................................................................................................22

Engine Tuning Guidelines ..............................................................................................................23

2-Stroke Engine.......................................................................................................................................23

Carburettor Adjustments....................................................................................................................23

Factory Settings.................................................................................................................................24

Tuning................................................................................................................................................24

Transportation and Storage............................................................................................................25

Transportation and Storage............................................................................................................26

Post Hole Digger BPX900

Troubleshooting...............................................................................................................................27

Specifications...................................................................................................................................28

Engine Service and Maintenance Record.....................................................................................29

Post Hole Digger BPX900

Parts Identification

No. Name No. Name

1 Engine (1 handle comes attached via the throttle

cable) 9 Tools / Fasteners / Accessories:

4 / 5 / 6mm Allen Key

13 / 15mm Spanner

Spark Plug Tool

Screwdriver

M8x25 Cap Screw (8)

M8 Nut (8)

M8 Washer (8)

M8 Spring Washer (8)

M6x20 Cap Screw with Washers (4)

Auger Locking Pin (8)

R-Clip or Split Pin (8)

Fuel Bottle

2 Gearbox

3 Handle (2) (1 handle comes attached to the

engine via the throttle cable)

4 100mm Diameter Auger

5 200mm Diameter Auger

6 300mm Diameter Auger

7 600mm Auger Extension (4)

8 Auger Bit (3)

3

8

1

2

6

4

7

9

5

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Post Hole Digger BPX900

Engine and Machine Components

No. Name No. Name

1 Engine ON / OFF Switch 8 Air Filter Assembly (air filter inside)

2

Throttle Control

9

Spark Plug Cover (spark plug inside)

3

Choke Lever

10

Handle

4 Starter Cord 11 Gearbox

5 Fuel Tank 12 Drive Pin

6 Fuel Primer 13 Auger (300mm shown, no auger extensions

shown)

7 Exhaust 14 Auger Bit

1

2

7

3

5

12

9

6

8

4

10

11

13

14

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Post Hole Digger BPX900

Before Use Checklist

Ensure that you carry out all procedures below before starting the engine or operating the

equipment. All procedures described are generic in nature and slight variations between different

models may exist. Failure to follow the checklist and carry out the procedures correctly may result in

making the product warranty void.

Assembly

Prior to assembly, unpack all components and check that all items have been received.

1. With the engine upside-down, place the gearbox (A) into position over the clutch housing (B) and secure

it using 4 M6x20 screws, flat and lock washers (C). Securely tighten the screws using the Allen key.

2. Attach each handle (D) to the sides of the gearbox plate (E) – the handles can be mounted to either the

inside (shown) or outside edges of the plate. Ensure that the handles will angle upward when the

machine is held vertically. The handle with throttle control and engine switch can be mounted on either

left or right-hand side. Secure each handle using 4 M8x25 screws, spring and flat washers and nuts (F).

Securely tighten the screws using the Allen key and spanner.

A

B

C

E

D

F

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Post Hole Digger BPX900

Air Filter

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The air filter requires regular maintenance.

Always check the air filter before starting the engine. See Air Filter.

Fuel

Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or other ignition

sources. • The engine must be cool before refuelling. • Always pre-mix the fuel before

placing it in the fuel tank. • The fuel to 2-stroke engine oil mixture ratio is 25:1.

Adequately fill the fuel tank with the correct fuel type.

•Use non-ethanol unleaded petrol mixed at a 25:1 ratio with 2-stroke engine oil (higher RON values and

good quality 2-stroke oil will provide best engine performance). Do not use old or contaminated fuel/oil.

Fuel/oil mix ratio examples are shown below.

Petrol (Litre) 1 2 5 10 Gas (US Gal) 0.5 1 2 3

Oil (Millilitre) 40 80 200 400 Oil (Fl. Oz) 2.56 5.12 10.24 15.36

To fill or top up fuel:

1. Place the machine in a vertical position on a flat and level surface with the fuel filler cap facing up.

2. Clean the machine around the fuel filler so that no dirt or other material enters the engine when the cap

is removed.

3. Remove (rotate left) the fuel filler cap.

4. Using a funnel, carefully fill the tank with fuel. Do not fill above the top of the strainer (if equipped) or

otherwise overfill the tank.

5. When finished, reinstall (rotate right) the fuel filler cap until firm. Wipe away any residual fuel from the

machine. If fuel has been spilt, move the machine away from the spillage before starting the engine.

Priming the Fuel System

When an engine is new or has been completely run out of fuel it may

be necessary to “prime” the fuel system before attempting to start the

engine. This means removing any air from the fuel line. To prime:

1. Ensure the fuel tank is filled with fuel.

2. Press the fuel primer (A) bulb repeatedly until you feel resistance

or pressure in the bulb – this indicates that it is full of fuel. Fuel

may also be visible in the fuel intake tube.

A

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Post Hole Digger BPX900

Attaching the Auger

Do not use the machine without an auger and bit attached. • The auger parts can be used in

combination to extend the depth of the hole. • Do not use additional auger extension pieces beyond

those supplied with the machine.

1. Align the holes in the machine drive pin (A) and the auger bit or extension (B).

2. Insert the locking pin (C) through the hole in the drive pin/auger and secure it using the R-clip or split pin

(D). If using a split pin, bend the legs over t prevent the pin falling out.

.

3. Screw (rotate right) an auger bit (E) to the thread on the end of the auger. Tighten the bit firmly.

B

A

C

D

E

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Post Hole Digger BPX900

Engine Starting and Stopping

Before starting the engine, ensure that you have followed all procedures described in the

Before Use Checklist. Failure to follow the checklist and carry out the procedures

correctly may result in making the product warranty void. • Once the engine is running at sufficient

speed, the clutch will engage and begin rotating the cutting attachment. • Do NOT start the engine with the

machine cutting attachment touching any object. • If the engine is new or is being re-started after

completely running out of fuel, it may be necessary to pull the starter cord several times for fuel to reach the

carburettor.

Starting the Engine

1. PRIME – If necessary, "prime" the fuel system.

2. CHOKE – If the engine is cold, place the choke (A) in the "COLD" or

"CLOSED" position. If the engine is warm or the ambient temperature is high, place the choke in the

"RUN" or "OPEN" position.

3. IGNITION – Place the engine ON/OFF switch (B) in the "ON" ("I") position.

4. START – It is recommended to have the tool on the ground and held firmly in place when starting (for

example, using your foot on the drive shaft). Slowly pull out the starter cord (C) until you feel it engage

with the engine, then pull it out rapidly (use both hands if necessary). The engine should start. Allow the

starter cord to rewind slowly – do not let it "snap" back.

5. WARM-UP – Allow the engine to warm-up and run smoothly. If choke is being applied, place the choke

(A) in the "RUN" or "OPEN" position.

If the engine does not start, repeat step 4 onward. If the engine fails to start after several attempts, refer to

Troubleshooting.

Stopping the Engine

To stop the engine, release the throttle and place the engine ON/OFF switch in the "OFF" or "STOP"

position.

Environmental Considerations

Altitude – If the engine is being used in altitudes at or above 1500m (approximately 5000'), adjustments to

the carburettor may be required. This is because there is less oxygen in the air as altitude increases, which

effectively "enriches" the ratio of fuel to air going into the engine and the higher the altitude, the richer the

fuel mixture becomes. If the engine is being permanently operated at high altitude, it is recommended to

have an authorized service centre make the necessary carburettor adjustments. If the engine is used

occasionally at altitude (not extreme altitudes), no adjustments should be required, however, a slight

decrease in engine performance can be expected.

A

B

C

Video Tutorial:

Starting 2-Stroke Engines

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Post Hole Digger BPX900

Post Hole Digger Operation

Before use, ensure that there are no electrical cables, gas or water pipes etc or other buried

or unseen hazards in the work area. Contact the applicable utility providers for assistance. •

The machine should be operated on ground that is suitable for digging. Do not attempt to dig into set

concrete, rock, tree roots, or other extremely hard surfaces. • Do not use the machine without an auger and

bit attached. • Augers and auger tips are consumable parts, and are not covered under warranty.

The machine is used for "drilling" holes in the ground. For example, to erect fencing etc. The machine is

designed for manual operation, where the operator both holds and controls it. Note the following:

•Adjust the throttle, which controls the drilling action, only when ready to begin digging the hole.

•Hold the machine as straight as possible when in use to ensure that holes are dug vertically.

•Always check the auger flutes, cutters and bit before digging each hole. Sharpen or replace any worn or

damaged components. Do not use if damaged in any way. Below is an example of the type of condition

in which an auger is not to be used:

To dig a hole:

1. Start the machine and allow it to warm up.

2. Position the machine in the required location, with the auger bit against the ground.

3. Holding the machine firmly with both hands (or having an assistant help), use the throttle to activate the

drilling action and dig the hole – once the auger starts to cut there is no need to push down on the

machine. Adjust the throttle for the desired drilling rate.

4. Release the throttle – this disengages the drilling action.

5. Lift the machine and auger carefully from the hole.

Using the Throttle and Adjusting

Drilling Speed

The throttle (A) is used to adjust the engine speed, which in turns

controls speed of the drilling action. To adjust the throttle, squeeze

to increase engine speed.

A

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Post Hole Digger BPX900

Maintenance

Running combustion engines in confined areas CAN KILL IN MINUTES. Engine exhaust

fumes contain carbon-monoxide – a deadly gas that you cannot smell or see. NEVER run

a combustion engine in confined areas EVEN IF windows and doors are open. ONLY run

combustion engines OUTDOORS and away from doors, windows and vents. • Petrol / fuel

/ gasoline is extremely flammable – keep clear of naked flames or other ignition sources. •

Do not have the engine running during inspection and maintenance unless specifically required. • The engine

should be cool enough to touch before performing maintenance activities. • Some maintenance activities

may be beyond the scope of some users. Do NOT attempt procedures that you are not comfortable with, or

do not have the necessary tools, experience or knowledge for – take the unit to an authorised service centre

or qualified technician for servicing. • Harsh operating environments such as extreme temperatures, dust etc

may necessitate more frequent maintenance. • Failure to follow the maintenance schedule, using

incorrect or non-compatible accessories or replacements parts, or general negligence may result in

making the product warranty void.

To keep the machine performing at optimal efficiency, regular checks and maintenance is required. The

maintenance schedule below specifies preventative maintenance checks and necessary maintenance tasks

and how often they should be performed. The schedule applies to multiple engines; some engines may not

include some components, so maintenance on those components is not applicable.

Maintenance Schedule

Use the following maintenance schedule for a list of regular maintenance tasks and how often they need to

be performed. Maintenance frequency is based on average usage. Be aware of how much the machine is

used and be sure to follow the schedule according to time or usage, whichever comes first.

Towards the end of this document is a form you can use for maintenance record keeping. It is recommended

that you keep a reference of all maintenance.

Major Servicing and "Heavy-Duty" Usage - For engines that are subject to "heavy-duty" use,

which can be defined as being used under loads of 85% or more and / or in use more than

approximately 300 hours per year (for example, generators and water pumps), more frequent "Major

Service" maintenance is required. In addition to normal service requirements, and as with many smaller

machine and off-road bike engines, the following parts (as applicable for petrol, diesel or 2-stroke engines)

may require replacement during a major service:

• Piston rings.

• Big-end bearings.

• Small-end bearings.

• Gudgeon pin.

• Oil rings.

• Gaskets and seals.

• Valve seats.

Inspection of the following items is required:

• Piston for cracks and stress fractures.

• Bore for wear requiring reconditioning.

• Full machine for broken, worn or loose parts.

Failure to follow the maintenance schedule, using incorrect or non-compatible accessories or

replacements parts, or general negligence may result in making the product warranty void.

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Post Hole Digger BPX900

Maintenance Schedule – 2-Stroke Engine / Machine

Major Service

–

Heavy

-Duty Use

Every 200

Hours Use

Check. Tighten as necessary

Replace

Clean

Replace as necessary

Flush and clean

Check. Adjust as necessary

Check. Tighten as necessary

Check. Clean / de

-coke as necessary

Perform

Sharpen. Replace as necessary

Check. Add as necessary.

Clean. Replace as necessary

Major Service

–

Normal Use

24 Months / 200

Hours Use

12 Months /

100 Hours

Use

Clean. Replace as necessary

6 Months / 50

Hours Use

3 Months / 25

Hours Use

Check

After First 5

Hours Use

Every Use

Check

Component / Task

Loose Engine /

Machine

Fasteners

Air Filter

Spark Plug

Spark Arrestor

*

Fuel Filter

*

Fuel Strainer

*

Float Bowl

*

Fuel Lines / Hoses

Fuel Tank

Idle Speed

Engine Tune

Cylinder Head Fasteners

Combustion Chamber

Major Service

Cutting Blade / Chain

*

Chain Lubricant

*

Chain Lubricant Strainer

*

*Where applicable.

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Post Hole Digger BPX900

Air Filter

Operating the machine without a functional air filter may cause severe engine damage and will void

any warranty. • A dirty or oil saturated air filter will restrict air flow, which can reduce performance

and be mistaken as fuel system problems. Check the condition of the air filter before adjusting engine idle

speed, where applicable. • If the air filter is damaged (torn, broken, disintegrating), replace it.

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The engine breather may be connected to the air intake assembly – this may lead to a build-up

of oil in the air filter over extended use and is normal. The air filter requires regular maintenance as per the

maintenance schedule.

Inspection and Cleaning

Inspect the air filter for dirtiness and debris, damage etc. Clean or replace the filter element as necessary. To

clean air filters:

•For foam filters, wash the filter in warm water and mild detergent, then rinse and allow to dry.

•For paper filters, use compressed air to blow particles from it. The air should be blown from the engine

side of the filter.

•Clean all other air filter assembly components using water and mild detergent, then dry them.

•For foam filters, place a few drops of clean engine oil on the filter then squeeze it a few times to spread

the oil through the filter material and remove any excess oil.

Removal/Installation

To remove the air filter:

1. Place the machine in an horizontally on a flat and level surface.

2. Unscrew the air filter cover screw (B) (rotate left) until the air filter cover (A) can be removed.

3. Pull the air filter element (C) from the air intake assembly.

To install the air filter:

1. Insert the air filter element into the air intake assembly.

2. Re-install the air filter cover and secure it with the air filter cover screw (rotate right).

A

B

C

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Post Hole Digger BPX900

Spark Plug

If the spark plug is damaged (cracked insulator, broken or eroded electrodes etc), replace it. •

Always use spark plugs of the correct "heat range" - see Specifications.

The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug has electrodes on one

end and an electrical terminal on the other. The spark plug requires regular maintenance.

Cleaning and Gap Checking

The spark plug should be checked and cleaned as per the maintenance schedule.

1. Remove any carbon deposits on the spark plug (A) electrodes (B) with a wire

brush.

2. Clean the spark plug threads and the electrical terminal (C) on the top.

To check and adjust the spark plug "gap":

1. Use "feeler" or "thickness" gauges (X) to measure the existing gap. The gauge

must drag a little when being slid between the electrodes (2) – this means the

measurement is fairly accurate.

2. Adjust the gap to within specification (see Specifications). If the gap needs to be

reduced, gently tap the electrode as required. If the gap needs to be increased,

use pliers to gently pull the electrode as required.

3. Measure the gap again and ensure it is within the specified range before re-installing the spark plug.

Removal/Installation

1. Pull the electrical lead (A) from the terminal on top of the spark plug (B).

2. If accessible, clean the area around the spark plug so that no dirt or other material can enter the engine

when the spark plug is removed.

3. Use the spark plug tool (C) to remove the spark plug (rotate left).

To re-install the spark plug:

1. Place the spark plug in its hole and screw it in (rotate right) until "finger tight".

2. Use the spark plug tool to tighten the spark plug approximately one quarter turn (do not over-tighten).

3. Place the electrical lead over the spark plug terminal and push it down so that it connects firmly with the

terminal.

A

B

X

C

A

B

C

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Baumr-AG BPX900 User manual

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