BAUMR-AG PTDPTRBM440A 38cc 4-Stroke Petrol Post Driver User Manual

User Manual

[Revision 7.0]

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

adequat

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

HP420 4 Stroke Post Driver

E&OE © Baumr-AG 2

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 protetion 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/petrol 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

•

Keep packaging away from children and

pets, potential risk of suffocation or

choking.

• 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.

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HP420 4 Stroke Post Driver

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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.

• Always use a Residual Current Device

(RCD) (GFCI) / Earth Leakage Circuit

Breaker / Safety Switch when operating this

item (electrical items only).

• 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 adjusting, changing

accessories, or performing repair or

maintenance.

• Do NOT adjust 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.

Child Choking Hazard!

•

WARNING: CHOKING HAZARD - CHILDREN UNDER 8 YRS. CAN CHOKE OR SUFFOCATE ON SMALL PARTS. ADULT

SUPERVISION REQUIRED.

• Carefully inspect anything a baby or child could gain access to, including this product & packaging.

• Dangers include anything of a size that could become stuck or lodged in a baby or child's airway.

• Dangers include things like raw, hard fruit and vegetable pieces, large pieces of meat, bones or sausage skins, popcorn, nuts,

hard lollies and corn chips, small magnets and batteries, coins, beads, marbles and small uninflated balloons, broken toys and smaller toys,

buttons, keys and coins. But there are also many more.

• Pay particular attention to accessories, nuts, bolts, screws, washers, caps, covers, loose parts, parts that could be removed or break off, pieces

of packaging, staples, tape etc.

• In the case of any doubt, secure the item of concern in an appropriate manner, or completely remove the possibility of access by a baby or child.

Post Driver Safety

POST DRIVERS ARE HIGH-SPEED, IMPACT EQUIPMENT THAT CAN CAUSE SERIOUS OR FATAL INJURY IF NOT USED CORRECTLY OR

W

ITHOUT 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 post driver or a particular accessory, it is highly recommended that you be trained/instructed by a suitably

qualified or experienced user before using the machine.

• You must be in good physical condition to use a post driver. 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 machine and have full awareness of your surroundings and any possible

hazards.

• Prolonged 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. In addition to eye protection, wearing a full-face shield is

highly recommended.

• Wear suitable hearing protection.

• Wear an approved safety hard-hat.

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

• 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.

• Inspect the work area and remove any objects that may obstruct posts.

• 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.

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HP420 4 Stroke Post Driver

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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.

• Use CAUTION when using the machine on sloping surfaces.

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

• Ensure the piling socket is not obstructed before post driving.

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

• Do not attach the machine to fixed supports.

Transportation Safety

• Always STOP the engine before transporting or working on it (refuelling, adjusting etc).

• When transporting the machine in a vehicle, ensure the engine is OFF, the tillers and digging attachments are disconnected, and the machine is

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

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HP420 4 Stroke Post Driver

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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 protective 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, maintenance

etc.

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HP420 4 Stroke Post Driver

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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"

manoeuvres 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,

maintenance 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. Direct 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.

Choking Hazard

Children under 8 yrs. Can choke

or suffocate on small parts. Adult

supervision required.

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HP420 4 Stroke Post Driver

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Table of Contents

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

Safety Symbols ........................................................................................................................................................... 5

Parts Identification ....................................................................................................................................... 8

Before Use Checklist .................................................................................................................................... 9

Air Filter ...................................................................................................................................................................... 9

Fuel ............................................................................................................................................................................. 9

Priming the Fuel System ............................................................................................................................................ 9

Attaching the Piling Socket Adaptor ......................................................................................................................... 10

Assembly ..................................................................................................................................................... 11

Piling socket .............................................................................................................................................................. 11

Adding Fuel ............................................................................................................................................................... 11

Environmental Considerations .................................................................................................................................. 11

Check the Supply of Engine Oil ................................................................................................................................ 12

Checking the Air Filter .............................................................................................................................................. 13

Operation ..................................................................................................................................................... 14

Starting the Engine ................................................................................................................................................... 14

Operating the Post Driver ......................................................................................................................................... 14

Throttle Control/Dial .................................................................................................................................................. 15

Turning OFF the Post Driver .................................................................................................................................... 16

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

Maintenance Schedule – 4-Stroke Engine / Machine .............................................................................................. 18

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

Fuel Filter .................................................................................................................................................................. 19

Carburettor ................................................................................................................................................................ 19

Spark Plug ................................................................................................................................................................ 19

Muffler ....................................................................................................................................................................... 20

Engine Oil Replacement ........................................................................................................................................... 20

Filling of Impact Cylinder Lubrication ........................................................................................................................ 21

Cleaning Guidelines.................................................................................................................................................. 21

Maintenance Schedule ............................................................................................................................................. 22

Transportation and Storage ....................................................................................................................... 24

Troubleshooting ......................................................................................................................................... 25

Specifications ............................................................................................................................................. 27

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HP420 4 Stroke Post Driver

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Parts Identification

No. Name No. Name

1 Oil Level Gauge 12 Grease cap

2 Handle Rack 13 Front placket

3

Starter

14

Support plate

4

Fuel tank

15

Throttle lock

5

Fuel tank cap

16

Combination switch

6

Fuel primer bulb

17

Throttle trigger

7

Air filter

18

Kill switch

8 Choke valve rocker arm 19 Throttle cable

9 Positioning sleeve 20 Piling socket

10

Damping spring

21

Piling socket retainer

11

Handle sleeve

Spare parts available

for purchase, scan QR

code below:

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HP420 4 Stroke Post Driver

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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.

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 petrol (higher RON values will provide best engine performance). Do not use old

or contaminated fuel/oil. Fuel/oil mix ratio examples are shown below.

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 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.

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HP420 4 Stroke Post Driver

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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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HP420 4 Stroke Post Driver

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Assembly

Piling socket

Install or change the piling socket retainer. Select a corresponding retainer according to the sizes of the piling

socket (45, 55, 88mm, as shown).

Adding Fuel

1. Use unleaded 90# petrol or above.

2. When the petrol engine is stopped, add fuel in well-ventilated areas away from open fires.

3. If the engine has just operated, cool down to room temperature before adding oil.

4. Do not add too much oil. The oil should not exceed the neck of the oil can. If fuel spills, wait until the fuel

evaporates completely, or clean it up completely, and then start the machine.

5. Tighten the lid of the fuel tank after refueling.

6. The post driver uses pure petrol as fuel.

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.

Temperature (4-Stroke Engines) – If the engine is being used in

extremely cold or hot environments; for example, desert or snow

conditions, the type of engine oil may need to be changed to suit

environmental temperatures. Oil thickens as the temperature

decreases and thins as temperature increases, which means that if

the engine oil is not suited to the temperature its ability to properly

lubricate the engine may be affected. Use the chart to determine the

correct engine oil.

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HP420 4 Stroke Post Driver

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Check the Supply of Engine Oil

1. To avoid damaging the engine, before starting, it’s necessary to check whether the engine oil is adequate

and needs replacement; for use of every 10 hours or that the petrol engine has worked continuously for 10

hours, it’s necessary to check liquid level of the engine oil and supplement engine oil to the upper limit of the

oil tank.

2. The engine should be placed horizontally. Unscrew the oil level gauge and check the oil liquid level as

shown. For inadequate oil, add to the upper limit. If oil is too dirty, replace it.

The recommended room temperature of the post driver is -15 to 40℃. Recommend oil type is SAE 10W-30

engine oil which equals to API classification SE, SF, and SG.

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HP420 4 Stroke Post Driver

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Checking the Air Filter

1. Take apart the cover of the air filter, and check whether the filter element is clean. If not, clean it first.

2. After checking, re-install the cover of the air filter to its normal position.

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Operation

Starting the Engine

1. Before starting the post driver, press the fuel primer bulb repeatedly until the carburettor is filled with fuel. (If

the engine is cool, close the choke. Open choke after starting, as shown).

2. Control and operate the handle tightly with one hand while the other one pulls the recoil handle of starter for

over 50cm quickly. Do not let the pulling handle go back freely in repeated pulling but hold it tightly to avoid

injury.

3. Start the engine and then open the choke completely. After idle operation of 5 minutes, start your normal

work.

4. Do not pull the handle of the starter during operation, since parts rotating with high speed may damage the

starter.

Operating the Post Driver

Post drivers are high-speed, impact equipment that can cause serious or fatal 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. • 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.

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HP420 4 Stroke Post Driver

E&OE © Baumr-AG 15

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.

NOTE: The new post driver should mainly use only low or medium speed for the first 20 hours of operation and

the maximum throttle should not be used to extend the service life. Operating speed of the engine should be at

medium speed. High-speed operation of post driver during non-piling is not allowed.

Throttle Control/Dial

•

Turn the dial to the LEFT to increase the throttle.

•

Turn the dial to the RIGHT to decrease the

throttle.

Throttle dial

INCREASE

DECREASE

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HP420 4 Stroke Post Driver

E&OE © Baumr-AG 16

Turning OFF the Post Driver

1. Release throttle trigger and carry out idle running for 3-5 minutes.

2. Pull the Stop Switch to the OFF position.

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HP420 4 Stroke Post Driver

E&OE © Baumr-AG 17

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.

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HP420 4 Stroke Post Driver

E&OE © Baumr-AG 18

Maintenance Schedule – 4-Stroke Engine / Machine

Major Service

–

Heavy

-Duty Use

Every 200

Hours Use

Replace

Check. Tighten as necessary

Replace

Clean

Replace as necessary

Check. Clean

Flush and clean

Check. Adjust as necessary

Check. Tighten as necessary

Check. Clean / de

-coke as necessary

Check level. Adjust as necessary

Perform

Sharpen. Replace as necessary

Repl

ace

Replace

Check. Replace as

necessary

Grease

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 level. Adjust

as necessary

Check

Check level. Adjust

as necessary

Check level. Adjust

as

necessary

Check tension.

Adjust as necessary

Component / Task

Engine Oil

****

Engine Oil Filter

*

Engine / Machine Fasteners

Air Filter

Spark Plug

Spark Arrestor

*

Fuel Filter

*

Fuel Strainer

*

Float Bowl

*

Fuel Lines / Hoses

Fuel injector

*

Fuel Pump

*

Fuel Tank

Idle Speed

Valve Clearance

Cylinder Head Fasteners

Combustion Chamber

Battery Electrolyte

*

Major Service

Cutting Blade / Chain

*

Water Pump Oil

**

Hydraulic Fluid

***

Drive Belt

*

Gearbox / Joints

*

* Where applicable. ** Pressure washers with non-sealed water pumps. *** Log splitters only.

**** Briggs & Stratton "EXi" engines do NOT require engine oil changes; just ensure that oil level is correct.

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HP420 4 Stroke Post Driver

Air Filter

Check air filter regularly. Dust and debris blocking the filter element of the air filter will reduce the power of the

engine and its service life. If the filter has too much dust and debris deposit, clean it with warm water and a mild

detergent, and then wipe dry with a clean dry cloth, and then re-install the air filter. Filter should be replaced if

damaged. Particularly if it’s in the environment of high dust content, maintenance schedule should be shortened

properly.

Fuel Filter

If the fuel filter is blocked, the post driver will have reduced speeds and weaker impact energy.

1. Open the fuel tank cap. Remove the fuel filter from the fuel tank with a metal hook and clean it.

2. When cleaning the fuel filter, clean the fuel tank at the same time.

Carburettor

Fuel tank and carburettor generally have residual oil. After some time, the residual oil will become greasy oil,

which blocks up the oil line, causing the engine to unable to start. Therefore, when the post driver is not used for

more than one week, be sure to completely drain the fuel out.

Pull out the oil inlet pipe, press the fuel primer bulb of the carburettor repeatedly to discharge oil, and press the

oil inlet pipe back to its position when fuel in primer bulb and oil return pipe is emptied.

Spark Plug

To ensure normal operation of the engine, spark plug gap must be adequate. Remove any carbon sediments

with a wire brush. Proper gap of spark plug is between 0.5 to 0.7mm.

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HP420 4 Stroke Post Driver

Muffler

1. Regularly remove dirt on the inlet and outlet of the muffler, or clean dirt in it with a mild detergent.

2. Regularly remove dust to ensure the cylinder is cooled properly. The post driver is an air-cooling type. If dust

accumulates on the cylinder cooling fin, the cooling effect will be influenced directly, which will lead to failure

of the cylinder.

Engine Oil Replacement

Engines are NOT supplied with engine oil, although traces of oil from the manufacturing process may be

present. It is essential to add adequate engine oil of the correct type to the engine before use. Failure to add

engine oil will void the product warranty. • Always check engine oil level when the machine is in an upright

position on a flat and level surface. • Do not use used or contaminated engine oils. • Use only engine oils of the

correct type. • Perform the first oil change within the first 10 hours of use. Subsequently, change the oil every 20

hours of use. • It is recommended that the engine be warm, but not hot, when performing oil changes. When the

oil is warm it drains faster. • Using dirty or incorrect engine oil may cause engine damage and void any warranty

• Always use suitable tools. • Always dispose of used oil in an environmentally responsible manner and

according to regulations. • Some engines feature oil level detection, which will prevent the engine being started

or automatically stop a running engine if there is insufficient oil. • Always check the oil level and ensure is at

or near the "MAX" indicator before using the machine.

1. Inadequate cleanliness of the engine oil will lower the service life of the moving parts of the post driver.

Replace the engine oil regularly and keep adequate amount of engine oil in the post driver.

2. Engine oil replacement cycle: replace engine oil after 10 hours in case of first use, and then replace engine

oil every 6 months or after operating for 50 hours.

3. Dispose the oil when heating the post driver to ensure quick and thorough oil drainage.

4. Engine oil replacement steps:

a. Make sure the oil tank cap is tightened.

b. Put a proper container beside the post driver to hold the waste engine oil.

c. Dismount the oil level gauge, lean the engine towards the oil filler and dump the engine oil into the

container, as shown.

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HP420 4 Stroke Post Driver

d. Place the post driver horizontally and add the recommended engine oil to the bottom edge of the oil filler.

e. There is still some residual engine oil after oil drainage. Add new engine oil after the residual oil is below

60mL. Add oil slowly to the bottom edge of the oil filler.

5. The recommended environmental temperature of the machine is -15 to 40℃. Recommend oil type is SAE

10W-30 engine oil which equals to API classification SE, SF, and SG.

Filling of Impact Cylinder Lubrication

After working for an accumulated 50 hours, fill special lubrication of 50g for the impact cylinder.

Cleaning Guidelines

Do not use solvents, chemicals or abrasives when cleaning the machine, as some surfaces may be damaged. •

Wear gloves or use suitable tools to assist in cleaning – do not use bare hands. • Clean the machine after every

use to ensure best performance and longest service life.

•

Use a slightly damp cloth and mild detergent for cleaning.

•

Use a brush for parts that are difficult to reach.

•

Ensure air vents and surfaces designed for heat dissipation are clean and free of obstructions or debris.

•

Ensure all guards and safety devices are clean and functioning correctly.

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HP420 4 Stroke Post Driver

•

Ensure that spring-loaded parts, such as the throttle, return to the normal position when released.

•

Ensure that all control cables, levers, switches etc are clean and operate normally and smoothly.

Maintenance Schedule

The following data are given common use of the product.

Suppose it is in worse working condition, such as thick dust in

the air or much longer work hours for product, the maintenance

schedule should be shortened correspondingly.

Before work

After work

or everyday

After filling

with oil

Every week

Every

month

Temporary

Failure

If necessary

The whole post driver

Check (overall

condition,

stabilities of

screws)

Cleaning

Control handle/stop button

Function check

Air Filter

Clean

Replace

Fuel Filter

Check

Replace

Petrol Tank / Petrol Tank cover

Clean

Check

Tighten

Reduction gearbox / Impact cylinder

Clean

Add grease

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HP420 4 Stroke Post Driver

The following data are given common use of the product.

Suppose it is in worse working condition, such as thick dust in

the air or much longer work hours for product, the maintenance

schedule should be shortened correspondingly.

Before work

After work

or everyday

After filling

with oil

Every week

Every

month

Temporary

Failure

If necessary

Muffler

Check

Remove

carbon deposit

Cylinder Cooling Fin

Check

Clean

Spark Plug

Check/Adjust

Customize the

distance

between

electrodes

Replace

Screw and Nut

Check

Tighten

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HP420 4 Stroke Post Driver

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 (if equipped)

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 (if equipped) 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 5ml 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.

IMPORTANT! Post hole digger needs to be stored in its box, on its side as shown in the image above, if

you store it in a different position or angle, oil may leak from the unit.

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HP420 4 Stroke Post Driver

Troubleshooting

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. • Products with 4-stroke

engines are NOT supplied with engine oil, although traces of oil from the manufacturing process may be present.

It is essential to add adequate engine oil of the correct type to the engine before use. Failure to add engine oil

will void the product warranty. • 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.

The following information may assist in identifying a problem and rectifying it.

Difficulties in starting engine in cooled state

Check if the spark plug is moist or wet Carefully dry out the spark plug



Check if the spark plug produces any electric sparks Replace the igniter plug



Too much fuel absorbed Reduced fuel supply

Difficulties in restarting engine after stopping suddenly

Check if fuel is used up or the carburettor is blocked Refill the fuel tank or clean the carburettor



Check if the fuel filter is blocked Clean the fuel filter



Too much carbon deposit in the spark plug

Remove carbon deposit from the spark plug and clean the

f

ilter element

Slow speed and weakness in power

Carbon deposit blocking the entrance of the cylinder or

silencer

Remove carbon deposit



Check if the oil tube and the air vent on the fuel tank

cover is blocked

Clean and remove the blockage



Blockage in air filter Clean the filter

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HP420 4 Stroke Post Driver

Abnormal sounds

Carbon deposit found in combustion chamber Remove carbon deposit



Serious abrasion in active components Replace components

Post driver is working normally, but performance efficiency is very low

Rubber ring of the impact piston is aged and worn Replace

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HP420 4 Stroke Post Driver

Specifications

Engine Type OHC 4 Stroke petrol

Displacement 40cc

Max Torque/Speed 1.67Nm / 5500RPM

Clutch Type Centrifugal

Impact Frequency 2300BPM

Fuel Capacity 0.65L

Oil Capacity 650ml

Fuel Type Petrol Regular Unleaded 95+ RON

Impact Force 35J

Starting System Hand pull start

Sleeve Heads 20-45mm, 55mm & 80mm

Note: Assembly Required

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Some experts believe that the incorrect or prolonged use of almost any

product may cause serious injury or death. To help reduce your risk of

serious injury or death, refer to the information below. For more information,

see www.datastreamserver.com/safety



Consult all documentation, packaging,

and product labelling before use. Note

that some products feature

documentation available online. It is

recommended to print and retain the

documentation.



Before each use, check the product for

loose/broken/damaged/missing parts,

wear, or leaks (if applicable). Never use a

product with

loose/broken/damaged/missing parts,

wear, or leaks.



Products must be inspected and serviced

(if applicable) by a qualified technician

every 6 months. This is based on

average residential use by persons of

average size and strength, and on a

property of average metropolitan size.

Use beyond these recommendations may

require more frequent

inspections/servicing.



Ensure that all users of the product have

completed a suitable industry recognised

training course before being allowed

access to the product.



The product has been supplied by a general merchandise

retailer that may not be familiar with your specific

application or description of application. Be sure to attain

third-party approval from a qualified specialist for your

application before use, regardless of any assurances from

the retailer or its representatives.



This product is not intended for use where fail-safe

operation is required. As with any product (for example,

automobile, computer, toaster), there is the possibility of

technical issues that may require the repair or

replacement of parts, or the product itself. If the possibility

of such failure and the associated time it may take to

rectify could in any way inconvenience the user, business,

or employee, or financially affect the user, business, or

employee, then the product is not suitable for your

requirements. This product is not intended for use where

incorrect operation or a failure of any kind, including but

not limited to, a condition requiring product return,

replacement, parts replacement, or service by a

technician may cause financial loss, loss of employee

time or an inconvenience requiring compensation.



If this product has been purchased in error when

considering the information presented here, contact the

retailer directly for details of their returns policy, if

required.

diagrams, or images may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying, scanning, or recording, or any information storage and retrieval system,

without express permission or consent from the publisher.

BAUMR-AG PTDPTRBM440A 38cc 4-Stroke Petrol Post Driver

Product's Documents

Product manual

Specifications

BAUMR-AG PTDPTRBM440A Questions and Answers