BAUMR-AG PTD2STBMRA4B0 Petrol Post Driver 40CC 2-Stroke User Manual

User Manual

[Revision 5.0 October 2022]

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.

The product is NOT supplied with engine oil, although traces of oil from the manufacturing process may be present. It is essential to

add ade

quate engine oil of the correct type to the engine before use. Failure to add engine oil will void the product warranty.

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.

HP240 Post Driver

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.

HP240 Post Driver

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 / Dust 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.

HP240 Post Driver

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.

Flash / Blinding Hazard

Wear appropriate eye

protection for welding. Dorect

exposure to weld arcs may

cause permanent eye injury.

Laser Hazard

Laser may be in use – do NOT

look directly at laser, or allow

others to.

HP240 Post Driver

Table of Contents

Safety ................................................................................................................................................ 1

Parts Identification ........................................................................................................................... 6

Engine and Machine Components ............................................................................................................... 7

Before Use Checklist ....................................................................................................................... 8

Air Filter ........................................................................................................................................................ 8

Fuel .............................................................................................................................................................. 8

Priming the Fuel System ....................................................................................................................... 8

Attaching the Piling Socket Adaptor ............................................................................................................. 9

Engine Starting and Stopping ...................................................................................................... 10

Starting the Engine ..................................................................................................................................... 10

Stopping the Engine ................................................................................................................................... 10

Environmental Considerations ................................................................................................................... 10

Post Driver Operation .................................................................................................................... 11

Using the Throttle and Adjusting Hammer Speed ............................................................................... 11

Maintenance ................................................................................................................................... 12

Maintenance Schedule ............................................................................................................................... 12

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

Air Filter Inspection and Cleaning ........................................................................................................ 13

Air Filter Removal/Installation .............................................................................................................. 13

Fuel Strainer ............................................................................................................................................... 14

Fuel Strainer Inspection and Cleaning ................................................................................................ 14

Fuel Strainer Removal/Installation ....................................................................................................... 14

Spark Plug .................................................................................................................................................. 15

Spark Plug Cleaning and Gap Checking ............................................................................................. 15

Spark Plug Removal/Installation .......................................................................................................... 15

Pinion ......................................................................................................................................................... 16

Engine Tuning Guidelines .......................................................................................................................... 17

Carburettor Adjustments ...................................................................................................................... 17

Factory Settings ................................................................................................................................... 18

Tuning .................................................................................................................................................. 18

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

.......................................................................... 19

Troubleshooting ............................................................................................................................. 20

Specifications ................................................................................................................................. 21

Engine Service and Maintenance Record .................................................................................... 22

HP240 Post Driver

Parts Identification

No. Name No. Name

1 Engine / Hammer / Handle Assembly 4 Tools / Accessories:

4 / 5 / 6mm Allen Key

4 / 5 / 6mm Multi-Allen Key

8 / 10mm Spanner

Flat-Blade Screwdriver

Spark Plug Tool / Screwdriver

Spark Plug (spare, may be included)

Grease (for hammer pin)

Fuel Bottle

2 45 to 80mm Piling Socket Adaptor

3 20 to 45mm Piling Socket Adaptor

2

1

3

4

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HP240 Post Driver

Engine and Machine Components

No. Name No. Name

1

Engine ON / OFF Switch

8

Exhaust

2

Throttle Control

9

Air Filter Assembly (air filter inside)

3

Choke Lever

10

Spark Plug Cover (spark plug inside)

4

Starter Cord

11

Handle

5 Fuel Tank 12 Hammer Case

6 Fuel Primer 13 Pinion Housing

7

Throttle Limiter

14

Pinion Access Cover

Spare parts available for purchase, scan QR code below:

1

2

3

4

5

6

7

8

9

10

11

12

13

14

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HP240 Post Driver

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.

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 Checking, Cleaning and Replacing the 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.

Adequately fill the fuel tank with the correct fuel type.

• Use non-ethanol unleaded 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 horizontal 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 will also be visible in the fuel intake

tube.

A

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HP240 Post Driver

Attaching the Piling Socket Adaptor

Do not use the machine without a piling socket adaptor attached.

Screw the required piling socket adaptor (1) to the thread on the end of the hammer case (B) (rotate right )

and firmly tighten by hand.

1

B

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HP240 Post Driver

Engine Starting and Stopping

Starting the Engine

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

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

ambient temperature is high, place the choke in the "RUN" position.

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

4. START – Slowly pull out the starter cord (G) until you feel it engage with the engine, then pull it out

rapidly. 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, gradually move

the choke (E) to the "RUN" 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" 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.

E

F

G

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HP240 Post Driver

Post Driver 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 driving posts. Do not attempt

to drive posts into set concrete, rock, tree roots, or other extremely hard

surfaces. • Do not use the machine without a piling socket attached.

The machine is used for driving "star pickets" and hollow metal posts etc into

the ground. For example, to erect simple fencing etc. The machine operates by

driving a "hammer" against the top of the post many times per second,

effectively forcing it into the ground. The machine is designed for manual

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

• Place the post/star picket into the required position before driving it.

• Adjust the throttle, which controls the hammer action, only when ready to

begin driving the post.

• Hold the machine as straight as possible when in use to ensure that posts

are driven in vertically.

To drive a post:

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

2. Position the post in the required location.

3. Place the machine over the post so that it rests on it.

4. Adjust the throttle for the desired hammering speed.

5. Drive the post into the ground as required – there is no need to push down on the machine.

6. Release the throttle – this disengages the hammer action.

7. Lift the machine from the post.

Using the Throttle and Adjusting Hammer Speed

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

controls speed of the hammer action. To adjust the throttle, grip the

throttle handle (I) so that the throttle safety switch (J) is pushed in – this

allows the throttle to be adjusted – squeeze to increase engine speed.

The throttle features a limiting screw (K) that stops it from being opened

further. Note the following:

• The throttle safety switch must be pushed in, in order to adjust the

throttle. When the throttle safety switch is released it is no longer

possible to adjust the throttle.

• It is recommended to set the limiting screw when an effective

engine/hammer speed is attained. Turn the screw right to reduce

the throttle opening limit (slower speed). Turn the screw left to

increase the throttle opening limit (faster speed). The hardness of

the material that the posts are being driven into may require

adjustment of engine/hammer speed for best performance.

H

J

I

K

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HP240 Post Driver

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 described may be beyond

the scope of some users. For procedures that you are not comfortable with or have the tools or experience

for, have the unit serviced by a service centre or qualified technician.

To keep the engine performing at optimal efficiency, regular checks and maintenance is required. Proper

care and maintenance ensures best performance and longest service life.

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.

Harsh operating environments such as extreme temperatures, dust etc may necessitate more

frequent maintenance. • Maintenance frequencies are based on general factors including a

maximum use of approximately 300 hours per year. Apply common-sense when following the maintenance

schedule based on your actual use of the product. • Keep reasonable records of maintenance activities for

reference. 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.

Maintenance Schedule

Frequency – Whichever Comes First

Component/Task Every Use

First Month or

20 Hours Use

Every 3 Months

or 50 Hours Use

Every 6 Months

or

100 Hours Use

Every Year or

300 Hours

Use

Air Cleaner

Check

Clean and replace as necessary

Spark Plug

Check

Replace

Combustion

Chamber

De-coke as

necessary

Exhaust

De-coke as

necessary

Fasteners

Check/tighten

as necessary

Fuel Tank

Flush and

clean

Fuel Line

Replace as necessary

Fuel Strainer

Clean and replace as necessary

Grease Pinion

Clean/lubricate as

necessary

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HP240 Post Driver

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.

Air Filter 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.

Air Filter Removal/Installation

To remove the air filter:

1. Place the machine in an upright position 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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HP240 Post Driver

Fuel Strainer

A dirty or blocked fuel strainer will restrict fuel flow, which can reduce performance and be mistaken

as fuel system problems. Check the condition of the fuel strainer before adjusting engine idle speed,

where applicable. • If the fuel strainer is no longer serviceable, replace it.

The fuel strainer is used to prevent dirt and other particles from possibly entering the fuel system and engine

and causing internal damage to it. The fuel strainer requires regular maintenance as per the maintenance

schedule.

Fuel Strainer Inspection and Cleaning

Inspect the fuel strainer for dirtiness and debris etc. Clean or replace the strainer as necessary. To clean fuel

strainers:

• Wash the strainer in clean solvent.

• If possible, use compressed air to assist in removing any blockages. Blow air into the strainer from

where it connects to the tube.

Fuel Strainer Removal/Installation

To remove the fuel strainer:

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

2. Remove the fuel tank cap (rotate left) and empty the fuel tank (A).

3. Use a hooked object to capture the fuel intake tube (B) inside the fuel tank and gently pull it from the

tank.

4. The strainer (C) is installed on the end of the tube – to remove it, twist and pull it from the end of the tube

To install the strainer:

1. Firmly push the strainer onto the fuel intake tube.

2. Place the tube back inside the fuel tank – it should rest along the bottom of the tank.

A

B

C

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HP240 Post Driver

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.

Spark Plug 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 b

efore re-installing the spark plug.

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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Pinion

The pinion is used to activate the hammer. The pinion operates at high speed and requires lubrication. To

grease the pinion:

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

2. Remove the pinion access cover (A) (rotate left).

3. Liberally coat the pinion and drive components with automotive bearing grease.

4. Re-install the pinion access cover (rotate right) and tighten firmly by hand.

A

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Engine Tuning Guidelines

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. • 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. • Improper tuning can lead to engine failure – engine failure due to improper

tuning is not covered under warranty. • If you cannot tune the engine, contact an authorised service

centre for assistance or have the machine checked by a small engine specialist. • The carburettor is supplied

factory-set and should run properly. Engine tuning should be attempted only if the machine shows signs of

requiring adjustment. • A tachometer is recommeded for setting engine idle and full throttle speeds.

The engine must be maintained in a reasonable "state of tune" to ensure best performance and safety. If the

engine is running roughly, emitting excessive smoke, not revving properly, not idling properly, showing signs

of reduced power, not responding crisply to the throttle etc, it may require "tuning". Basic tuning for 2-stroke

engines is not difficult, however, care should be taken in understanding the tuning process and learning how

to recognise the symtoms for when engine tuning is required and where and how to make adjustments. Note

that factors such as altitude, fuel mixture, ambient temperature etc may all affect engine running

characteristics. There are two basic engine conditions that determine improper tune:

• Rich - An adjustment that is too rich will cause the engine to smoke, have insufficient power, result in

additional carbon build up and may damage the engine. The proportion of fuel in the air/fuel mixture is so

high that the fuel does not burn well. The partially burned mixture is expelled into the exhaust and exits

the engine as smoke. Carbon build-up may affect the performance of the spark arrestor (if equipped) and

cylinder ports if run for a period of time. Outside of carburetor adjustments this can also be caused by

having too much oil mixed with the fuel, and/or old fuel.

• Lean - An adjustment that is too lean will also cause the engine to have insufficient power and is more

likely to damage the engine than a rich mixture. The proportion of fuel in the air/fuel mixture is so low that

there is not enough fuel to burn. Lean running causes the cylinder temperature to rise, which often leads

to engine seizure, and for excessive revving which may result in connecting rod bearing failure. Other

causes for a lean running condition include lack of oil in the fuel mix, and when the fuel tank runs empty.

Before any engine tuning:

• Service the air filter

.

• Service the spark plug.

• Use fresh fuel.

Carburettor Adjustments

The carburettor has 3 adjustments available:

• Idle Speed – Controls how open the throttle is when the throttle is released. If idle speed is set too low,

the engine will stop when the throttle is released due to a lack of air/fuel mixture. If idle speed is set too

high, the engine will run when the throttle is released, however, at a speed that will engage the clutch

and cause the hammer action to activate – this is a dangerous condition that should never be allowed.

• Low Speed Mixture – Controls the proportion of fuel in the air/fuel mixture at idle speed. If the low

speed mixture is too rich, the engine will load up when idling and then stop. If the low speed mixture is

too lean, the engine will race or surge when idling and then stop.

• High Speed Mixture – Controls the proportion of fuel in the air/fuel mixture at working speed. If the high

speed mixture is too rich, the engine may not reach the speed necessary for maximum power, emit

excessive smoke and respond poorly to throttle movement. If the high speed mixture is too lean, the

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engine may reach speeds where bearing failure and piston seizure are likely. It will also lack power and

tend to run very hot.

The adjustment screws are generally located

on the starter cord side of the unit. The high

speed and low speed mixture screws are

generall marked "L" and "H", respectively. In

the adjacent image, idle speed is (A), low

speed mixture is (B) and high speed mixture

is (C).

Factory Settings

Each adjustment screw has a general "factory

setting", which is measured from the

adjustment screw being rotated "IN" (right /

clockwise) until fully seated (but not tight).

From this point, the setting is made by

counting the number of full rotations of the

screw "OUT" (rotate left / anti-clockwise).

Factory settings are:

• Idle Speed – Approximately 5 turns out.

• Low Speed Mixture – Approximately 2.5

turn out.

• High Speed Mixture – Approximately 2 turns out.

Use the factory settings as the basis for tuning. Set all adjustment screws to factory settings, then test the

engine before further tuning. Use a suitable flat-blade screwdriver and ensure that the screwdriver is

properly engaged with the adjustment screw before rotating.

Tuning

1. Start and allow the engine to idle uintil it is warmed up – tuning a cold engine will result in rich running

when the engine is warm. If the engine does not idle, use the throttle to keep the engine running ("blip"

the throttle; do not run the engine continuously at high speed).

2. Adjust Idle Speed – Rotate the adjustment screw one quarter (¼) turn at a time – rotate "IN" (right /

clockwise) to increase idle speed; rotate "OUT" (left / anti-clockwise) to reduce idle speed. Set the speed

so the engine idles as fast as possible without engaging the clutch. Never set the idle so the driving

action activates when the throttle is released. If the engine will not idle, adjust the low speed mixture

(step 3).

3. Adjust Low Speed Mixture – Rotate the adjustment screw one quarter (¼) turn at a time – rotate "IN"

(right / clockwise) to lean the low speed mixture; rotate "OUT" (left / anti-clockwise) to richen low speed

mixture. Rotate the screw IN until the engine begins surging or wants to stop – this is the lean

adjustment position. Make a note of the number of rotations of the screw to reach the lean adjustment

position. Then, rotate the adjustment screw OUT – the engine should start running better. Keep rotating

the screw OUT until the engine starts to load up – this is the rich adjustment position. Make a note of the

number of rotations of the screw to reach the rich adjustment position and compare it to the lean

adjustment position. Then, rotate the screw IN to a position where the engine idles best – it should be

about midway between the rich and lean position settings. At this point, you may have to re-adjust idle

speed (step 2).

4. Adjust High Speed Mixture – Rotate the adjustment screw one quarter (¼) turn at a time – rotate "IN"

(right / clockwise) to lean the high speed mixture; rotate "OUT" (left / anti-clockwise) to richen high speed

mixture. Rotate the screw OUT until the engine begins slowing and running roughly at full throttle. Then,

rotate the adjustment screw IN – the engine should start running better. Keep rotating the screw IN until

the engine reaches maximum speed. Then, rotate the screw OUT one eigth (1/8) to one quarter (¼) of a

turn to richen the air/fuel mixture for engine cooling purposes.

A

C

B

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Transportation and Storage

Always ensure that the machine is cool enough to touch before transporting or

storing. • Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or

other ignition sources. • Always transport the machine with the engine ON/OFF switch in the "OFF" position.

• Drain the fuel tank before transportation or storage.

Preparing for Transport and Storage

• Drain the fuel system by allowing the engine to run until it stops.

• Ensure the engine ON/OFF switch is in the "OFF" position.

• Avoid exposing the equipment to direct sunlight, particularly during transportation.

• Ensure the equipment is secure and upright during transport.

• Store the unit in a dry, well-ventilated area and out of the reach of children.

Long Term Storage

Follow the normal procedures for storage, then:

• Drain the fuel system. It is advised to have the fuel tank as empty as possible before draining.

a. Unscrew (rotate left) the carburettor drain plug. Use a suitable container to catch the draining fuel,

and allow the fuel to drain. Store the drained fuel in a properly sealed container.

b. Re-install (rotate right) the carburettor drain plug and tighten.

• Remove the spark plug and put 10ml of clean engine oil into the cylinder. Pull the starter cord slowly to

distribute the oil. Re-install the spark plug.

• Cover the equipment to protect it.

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