Powerfist 8658973 Owner's manual

V4.1 8658973

Please read and understand all instructions before use. Retain this manual for

future reference.

User Manual

Gasoline Post Driver

8658973 Gasoline Post Driver V4.1

2 For technical questions call 1-800-665-8685

SPECIFICATIONS

Engine Type 32.6cc, 2-Stroke, Single Cylinder

Fuel Tank Capacity

0.95 Quarts (0.9 litres)

Fuel/Oil Ratio 25 to 1

Start Type Pull Recoil

Impact Rate 1700 to 2,230 BPM

Max. Impact Energy 33 ft-lb

Spark Plug (SKU 4780235)

Type

L6T

Gap

0.5 to 0.7 mm

Weight 28.6 lb (13 kg)

INTRODUCTION

The Gasoline Post Driver is used to drive grounding rods or square, round, U-

channel and ‘T’ posts into the ground.

SAFETY

WARNING! Read and understand all instructions before using this tool. The

operator must follow basic precautions to reduce the risk of personal injury

and/or damage to the equipment.

Keep this manual for safety warnings, precautions, operating or inspection and

maintenance instructions.

HAZARD DEFINITIONS

Please familiarize yourself with the hazard notices found in this manual. A notice

is an alert that there is a possibility of property damage, injury or death if certain

instructions are not followed.

Gasoline Post Driver

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DANGER! This notice indicates an immediate and specific hazard that will

result in severe personal injury or death if the proper precautions

are not taken.

WARNING! This notice indicates a specific hazard or unsafe practice that

could result in severe personal injury or death if the proper

precautions are not taken.

CAUTION! This notice indicates a potentially hazardous situation that may result

in minor or moderate injury if proper practices are not taken.

NOTICE! This notice indicates that a specific hazard or unsafe practice will

result in equipment or property damage, but not personal injury.

WORK AREA

1. Operate in a safe work environment. Keep your work area clean, well-lit

and free of distractions.

2. Keep anyone not wearing the appropriate safety equipment away from the

work area.

3. Store unused tools properly in a safe and dry location to prevent rust or

damage. Lock tools away and keep out of the reach of children.

4. Do not install or use in the presence of flammable gases, dust or liquids.

PERSONAL SAFETY

WARNING! Wear personal protective equipment approved by the Canadian

Standards Association (CSA) or American National Standards Institute (ANSI).

PERSONAL PROTECTIVE EQUIPMENT

1. Always wear impact safety goggles that provide front and side protection

for the eyes. Eye protection equipment should comply with CSA Z94.3-07

or ANSI Z87.1 standards based on the type of work performed.

2. Wear the appropriate type of full-face shield in addition to safety googles,

as the work can create chips, abrasive or particulate matter.

3. Wear gloves that provide protection based on the work materials or to

reduce the effects of tool vibration.

a. Do not wear gloves when operating a tool that can snag the material

and pull the hand into the tool.

8658973 Gasoline Post Driver V4.1

4 For technical questions call 1-800-665-8685

4. Wear protective clothing designed for the work environment and tool.

5. Non-skid footwear is recommended to maintain footing and balance in the

work environment.

6. Wear steel toe footwear or steel toe caps to prevent a foot injury from

falling objects.

7. Wear the appropriate rated dust mask or respirator.

8. This tool can cause hearing damage. Wear hearing protection gear with an

appropriate Noise Reduction Rating to withstand the decibel levels.

PERSONAL PRECAUTIONS

Control the tool, personal movement and the work environment to avoid

personal injury or damage to tool.

1. Do not operate any tool when tired or under the influence of drugs, alcohol

or medications.

2. Avoid wearing clothes or jewelry that can become entangled with the

moving parts of a tool. Keep long hair covered or bound.

3. Do not overreach when operating a tool. Proper footing and balance

enables better control in unexpected situations.

4. Securely hold this tool using both hands. Using a tool with only one hand

can result in loss of control.

SPECIFIC SAFETY PRECAUTIONS

WARNING! DO NOT let comfort or familiarity with product (gained from

repeated use) replace strict adherence to the tool safety rules. If you use

this tool unsafely or incorrectly, you can suffer serious personal injury.

1. Use the correct tool for the job. This tool was designed for a specific function.

Do not modify or alter this tool or use it for an unintended purpose.

2. All users must understand the operation of all controls and learn how to

stop the engine quickly in case of emergency.

3. The user must stand behind the tool when in use to avoid potential injury.

4. Do not tamper with governor spring, links or other engine parts to increase

speed or power.

5. The engine and exhaust become very hot during operation. Severe thermal

burns can occur on contact, especially with the muffler.

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a. Remove accumulated debris from the muffler. Combustible debris,

such as leaves, grass, brush, etc. can catch fire if they come in

contact with a hot engine.

b. Allow muffler, engine cylinder and fins to cool before touching.

6. The manufacturer of the equipment on which this engine is installed

specifies the top speed at which the engine will operate. DO NOT exceed

this speed.

7. Balance the tool when in use. Too sharp an angle and the tool may topple

over or bounce. You may lose control of the tool.

8. Keep people away from the work area to avoid injury. The tool can cause

flying debris when in use.

9. Do not lean on the tool to try to create extra impacting force. The weight of

the tool itself creates the optimal import force to achieve good results.

10. Check all the screws, nuts and bolts to make sure they are tight before

each use.

11. Do not use gasoline without mixing in two-stroke engine oil. This can

damage the engine.

12. Tighten the gas cap after refueling. Check frequently that fuel tank is not

damaged or leaking. Replace the fuel tank immediately if either problem

is discovered.

13. When using the tool in enclosed areas, such as tunnels, trenches and holes

ensure there is sufficient fresh air for the operator. Exhaust gas contains

carbon monoxide which could result in serious injury or death.

14. Leave the tool in idle for a few seconds before increasing speed or

stopping. Increasing to full throttle or stopping without idling can damage

the engine.

FUELING SAFETY

1. Mix and pour fuel outdoors in areas free of sparks and flames. Use a

container designed for fuel storage.

2. Do not expose to any ignition source. Both the fumes and fuel are flammable.

3. Wipe up all fuel spills before starting the tool

4. Stop the engine before removing the fuel tank cap.

8658973 Gasoline Post Driver V4.1

6 For technical questions call 1-800-665-8685

5. Empty the fuel tank before storing the tool. Store the tool and fuel where

fuel vapors cannot reach sparks or open flames from appliances or

electrical switches/motors.

6. Before fueling, servicing or transporting your tool, switch off the engine. To

help prevent fire, restart your tool at least 3 m (10 ft) from the fueling area.

7. Allow your tool to cool before refueling.

8. Have a fire extinguisher available for immediate use. A dry chemical fire

extinguisher for Types A, B and C is suggested. Type B is required for

gasoline fires.

CARBON MONOXIDE

All gas appliances consume air (oxygen) and can produce carbon monoxide

which is toxic, has no odour and can cause death. Using a gas appliance in a

small and enclosed area can be harmful. Never use this appliance in a small and

enclosed area. Always have fresh air venting.

CARBON MONOXIDE POISONING

DANGER! Never operate a gas engine indoors or in a confined space as the

exhaust contains carbon monoxide gas. Inhalation of carbon monoxide gas

can lead to illness or death. The area must be well ventilated. Opening

windows and doors is not enough to ventilate an area.

Carbon monoxide is a colourless and odourless gas that is difficult to detect.

Carbon monoxide poisoning results from inhalation of the gas and may be lethal

if left untreated. Evacuate all people to an area with clean air and seek

immediate medical attention for any person experiencing the following

symptoms:

1. Headache

2. Confusion

3. Shortness of breath

4. Weakness

5. Chest pain

6. Dizziness

7. Vision trouble

8. Nausea and vomiting

9. Unconsciousness

CUTTING TOOL PRECAUTIONS

1. Keep hands away from the work area and the piling socket.

2. Use the correct mounting hardware. The mounting hardware is designed to

hold the piling socket on the tool to allow optimum performance and safety

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of operation. Mismatched mounting hardware may result in a tool

malfunction and cause an injury.

3. Do not carry the tool with fingers near or on the trigger/switch.

4. Avoid unintentional starts. Be sure that the ignition switch/trigger is in the

neutral or OFF position when not in use or before connecting it to any

power source.

5. Remove adjusting keys and wrenches from the tool before operation or

connecting it to a power source. A wrench or key that is left attached to a

rotating part of the tool increases the risk of personal injury.

VIBRATION PRECAUTIONS

1. This tool vibrates during use. Repeated or long-term exposure to vibration

may cause temporary or permanent physical injury. Take frequent breaks

when using the tool.

2. If you feel any medical symptoms related to vibrations (such as

tingling, numbness, and white or blue fingers), seek medical attention

as soon as possible.

3. Wear suitable gloves to reduce the effects of vibration.

4. DO NOT use this tool before consulting a physician if one of the following applies:

a. Pregnant

b. Impaired blood circulation to

the hands

c. Past hand injuries

d. Nervous system disorders

e. Diabetes

f. Raynaud's Disease

UNPACKING

WARNING! Do not operate the tool if any part is missing. Replace the

missing part before operating. Failure to do so could result in a malfunction

and personal injury.

Remove the parts and accessories from the packaging and inspect for damage.

Make sure that all items in the parts list are included.

Contents:

• 2-11/16 and 1-29/32 in. Piling Sockets • Fuel Mixing Container

• Tool Kit and Grease

8658973 Gasoline Post Driver V4.1

8 For technical questions call 1-800-665-8685

IDENTIFICATION KEY

A Starter Handle

B Stop Button

C Combination Switch

D Adjust Switch

E Throttle Lever

F Hammer Case

G Hammer Socket

H Piling Socket

I Support Plate

J Grip

K Damping Spring

L Positioning Sleeve

M Handle

N Spark Plug

O Choke Lever

P Air Filter

Q Gas Tank Cap

R Fuel Tank

S Fuel Primer Bubble

T Gearbox Cover

U Throttle Cable

Fig. 1

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OPERATION

Letter references in parenthesis (A) refer to the included Identification Key.

PREPARING THE POST DRIVER FOR USE

1. Fill the Gearbox with grease (see Lubrication).

2. Fill the fuel tank (R) with the fuel/oil mixture (see Fuel and Fueling).

3. Clean the engine cooling fins and muffler of any debris.

4. Clean the handles (J and M) of any oil or lubricants.

STARTING THE POST DRIVER

CAUTION! Failure to follow the steps below will result in rapid retraction of

the starter cord faster than you can let go. This will pull your hand and arm

toward the engine, possibly resulting in an injury.

Check that the Throttle Handle/Stop Button is functioning.

1. Press the piling socket (H) onto the hammer socket until firmly seated.

2. Before starting the tool for the first time, press repeatedly on the

transparent fuel priming bubble (S) to fill the carburetor with fuel.

3. Move the choke lever (O) to the CLOSED position if the engine is cold. The

choke is unnecessary when starting a warm engine.

4. Lay the tool flat on the floor. Hold one handle (M) and pull the starter

handle (A) lightly until you feel resistance, then pull the starter handle

briskly. The engine should turn over and start running.

a. Do not allow the starter handle to snap back against the engine.

Instead, return the starter grip gently by hand.

5. If the engine floods, set the choke to the OPEN/RUN position, place the

throttle in FAST and attempt to start the engine again.

6. If the choke lever was moved to the CLOSED position to start the engine,

gradually move it to the OPEN position as the engine warms up.

8658973 Gasoline Post Driver V4.1

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STOPPING THE ENGINE

CAUTION! Do not choke carburetor to stop engine.

IN AN EMERGENCY

Press the red stop button (B).

DURING NORMAL USE

Stop the engine by following this procedure:

1. Move the throttle lever (E) to the MIN. position and leave to idle for 3 to 5 minutes.

2. Press the red stop button.

OPERATING THE TOOL

1. Warm up the tool before the first use of the day or when left unused for a

time in cool temperatures. This may take several minutes.

2. Allow the engine to run at low speed for 2 to 3 minutes to preheat

the machine.

3. Hold the tool by the grip (J) on one side of the handle (M). The engine

must face away from you. The stop button (B) will be under your thumb

and the throttle control (E) will be under your fingers.

4. Insert the end of a post into the piling socket (H) until it is seated.

a. Place the piling socket (H) over the end of the post, if the post is already

in the ground.

5. Hold the tool by the grips on either side of the handle and raise the tool until it

is upright without letting the post slip out.

6. Position the post in the desired location.

7. Press the throttle lever (E) to begin driving the post into the ground.

a. Run the tool at lower speeds for the first 24 hours of use to extend

the engine’s lifespan.

8. Maintain a firm grip to prevent the tool from slipping or bouncing around

and causing an injury or unintended damage.

9. Apply just enough pressure to guide the tool. The tool’s own weight will

generate the force to drive the post into the ground.

10. Release the trigger when the job is complete.

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CARE & MAINTENANCE

WARNING! Always ensure that the engine is off before you begin any

maintenance or repairs. An active engine part can cause a severe injury,

amputation or death if a mishap occurs

1. Maintain the tool with care. A tool in good condition is efficient, easier to

control and will have fewer problems.

2. Disconnect the spark plug lead and keep it away from the spark plug

during maintenance and repairs.

3. Inspect the tool components periodically. Check fuel lines, tank, cap and

fittings frequently for cracks or leaks. Repair or replace damaged or worn

components. Only use identical replacement parts when servicing.

4. Follow instructions for lubricating and changing accessories.

5. Only use accessories intended for use with this tool.

6. Keep the tool handles clean, dry and free from oil/grease at all times.

7. Maintain the tool’s labels and name plates. These carry important information.

If unreadable or missing, contact Princess Auto Ltd. for replacements.

WARNING! Only qualified service personnel should repair the tool. An

improperly repaired tool may present a hazard to the user and/or others.

FUEL AND FUELING

Warning! Always shut the engine off and allow to cool before fuelling. Never

add fuel to a machine with a running or hot engine. Move at least 10 ft. from

the refuelling site before starting the engine to avoid an explosion or fire.

The tool is equipped with a two-stroke engine that runs on a mixture of gasoline

and two-stroke oil. It is important to accurately measure the amount of oil

mixed with gasoline to ensure the correct mixture ratio. When small amounts of

fuel are mixed, even small inaccuracy can dramatically affect the ratio.

1. Use only an approved fuel container

2. Do not allow open flames, parks or smoking near fuel.

3. Fuel cans may be under pressure due to temperature. Loosen fuel caps

slowly, allowing the pressure to equilibrate.

4. Do not fill fuel tanks indoor. Always fill fuel tanks outdoors over

bare ground.

5. Inspect for fuel leaks. Do not start until leakage is repaired.

8658973 Gasoline Post Driver V4.1

12 For technical questions call 1-800-665-8685

MIXING 2-STROKE FUEL

DANGER! Fuel is very flammable. Use extreme care when mixing, storing or

handling fuel. An ignition source contacting the fumes or fuel may result in

a fire or explosion and cause fatal or serious injuries.

1. Gasoline – Use 89 Octane or higher gasoline.

a. Avoid gasoline containing alcohol such as gasohol when possible.

Gasohol containing up to 10% Ethyl alcohol is acceptable if necessary.

2. Two-stroke oil – two-stroke engine oil must meet ISO-L-EGD

(ISO/CD 13738) and JASO FC standards.

3. Do not use pre-mixed gasoline/lubricant from fuel service stations. This

includes the pre-mixed gasoline/lubricant intended for use in mopeds,

motorcycles, etc.

MIXING INSTRUCTIONS

1. Gasoline to two-stroke oil ratio for this tool is 25 to 1.

a. A richer ratio of 20 to 1 is used for the first 20 hours of use.

2. Fill an approved container with half of the gasoline.

3. Add the proper amount of two-stroke oil to the gasoline per Table 1.

4. Close the container and shake to mix the oil with the gasoline.

5. Add remaining gasoline to the container, close and remix.

6. Mix in small quantities. Do not mix more fuel than can be used in a 30 day

period, 90 days if fuel

stabilizer is added.

a. Fuel without an

alcohol additive are

less likely to form

gum and deposits

and should not

require a stabilizer.

HOW TO ADD FUEL

WARNING! Do not refuel the engine inside a building. Gasoline and its vapors

are extremely flammable and explosive. Keep gasoline away from appliance

pilot lights, barbecues, electric appliances, power tools, etc.

Two-Stroke Oil Mixture Ratio

Fuel

First 20 hours

After 20 hours

Per Gallon

6.4 oz

5.1 oz

Per Quart

1.6 oz

1.3 oz

Per Pint

0.8 oz

0.7 oz

Per litre

50 ml

40 ml

Table 1

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WARNING! Check for fuel leaks. If any are found, correct them before using

the tool to prevent fire or burn injury.

Do not use stale or contaminated gasoline or oil/gasoline mixture. Avoid getting

dirt or water in the fuel tank. It is normal for the engine to emit smoke during

and after the first use

1. Refuel outdoors or in a well-ventilated area.

2. Stop the engine and place it on a level surface.

3. Let engine cool at least 2 minutes before removing the fuel cap.

4. Clean the fuel cap area of dirt and debris. Remove the fuel cap slowly to

allow the pressure to equalize.

5. Check the fuel level.

6. Add fuel until it reaches the bottom of the fuel level limit marked in the fuel tank.

a. Fill the tank to approximately 1.5 in. (38 mm) below the top of the fuel

tank to allow for fuel expansion.

7. Take care to not overfill the tank. It may be necessary to lower the fuel level

depending on operating conditions.

8. Check fuel lines, tank, cap and fittings frequently for cracks or leaks.

Replace if necessary.

9. After refueling, hand-tighten the fuel tank cap securely.

10. Wipe up any spilled fuel before starting the engine or allow the fuel to

evaporate. Spilled fuel is both a fire hazard and an environmental hazard.

CARBURETOR

The gasoline/oil mixture can separate and clog the fuel line if left too long between

uses. This may cause an engine failure, if the tool is not used for more than a week.

1. Drain the fuel from the fuel tank.

2. Clean the oil out of the fuel line.

3. Refill the tank and remove the fuel line from the carburetor.

4. Repeatedly press the fuel priming bubble until all the oil is flushed from

fuel line into a suitable container for disposal.

5. Reattach the fuel line to the carburetor.

8658973 Gasoline Post Driver V4.1

14 For technical questions call 1-800-665-8685

CARBURETOR ADJUSTMENT

Never make adjustments to the carburetor. The carburetor was set at the factory

to operate efficiently under most conditions. Only a qualified service technician

should adjust the carburetor if it is required.

MODIFYING THE CARBURETOR FOR HIGH ALTITUDES

At high altitudes, the standard air-fuel mixture is too rich, causing increased fuel

consumption and decreased performance. A rich mixture will also foul the spark

plug and cause hard starting.

A qualified technician can improve high altitude performance with certain

modifications. Have your carburetor modified if the engine will routinely be

operated at altitudes above 5,000 ft (1,500 m). Even with carburetor

modification, engine horsepower will decrease about 3.5% for each 1,000 ft

(305 m) increase in altitude. The effect of altitude on horsepower will be greater

than this is if no modification is made.

NOTICE! When the carburetor has been modified for high altitude operation, the

air fuel mixture will be too lean for low altitude use. Operation at altitudes

below 5,000 ft (1,500 m) may cause the engine to overheat and result in serious

engine damage. When using this engine at low altitudes, have a qualified

technician return the carburetor to original factory specifications.

CLEANING THE SEDIMENT CUP

CAUTION! Wear latex or rubber gloves when working on the sediment cup.

The cup may contain fuel that will cause skin irritation. Prolonged and

repeated exposure to fuel on skin may result in dry, cracked skin.

1. Switch the fuel valve to the OFF position.

2. Remove the fuel sediment cup, screw and O-ring.

3. Clean the sediment cup with a non-flammable solvent or detergent and

rinse. Allow to dry.

a. Some chemicals will damage the o-ring material. Check for

compatibility or simply replace the o-ring.

4. Reassemble the sediment cup and o-ring.

5. Switch the fuel valve to the ON position and check for leaks. Replace the

o-ring if the installation is correct, but fuel still leaks from the cup.

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AIR FILTER

Check the air filter regularly. Dust blocking the cover of the air filter will reduce

engine power and can cause early cylinder failure. If the filter is very dirty, wash

in warm water with a mild detergent and wring dry. Once the filter is dry apply a

few drops of oil and work it into the filter. Replace the filter if it is damaged.

Replace air filter sponge after 36 hours of operation

FUEL FILTER

A clogged fuel filter will slow down an engine, causing the impact frequency and

force of the tool to also decrease.

1. Remove the fuel tank cap (Q) and empty the fuel into a suitable container.

2. Pull out the fuel line with the fuel filter. A wire hook with a blunt end may

be required. Ensure that the fuel line is not punctured.

a. If unable to retrieve the fuel line and filter through the fuel tank

opening, remove the fuel tank from the tool to access the filter.

Reattach after replacing the filter.

3. Pull the spent filter off the fuel line.

4. Push the new filter onto the fuel line until the barbs are completely inserted.

5. Push the fuel line and filter back into the fuel tank. Position the fuel filter so

it is in the center of the tank where it can still draw fuel when the tool is in

different positions.

6. Pour the fuel back into the tank and replace the fuel tank cap.

REPLACING THE SPARK PLUG

NOTICE! Using an incorrect spark plug can cause engine damage. Only

replace a spark plug with a model recommended by the manufacturer.

The spark plug must be properly gapped and free of deposits for the best

performance. Check local bylaws to see if a resistor spark plug is required to

suppress ignition signals. Replace the included spark plug with a resistor spark

plug if required.

1. Remove any dirt from around the spark plug area.

2. Unclip the spark plug lead and remove the spark plug with a spark plug

wrench. This will have a rubber pad inside the socket to protect the spark

plug’s ceramic coating.

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3. Inspect the spark plug. Replace it if damaged, badly fouled, the sealing

washer is in poor condition or the electrode is worn.

4. Check the gap with a spark plug gauge as shown in Figure 2. If necessary,

reset the gap (See Specifications).

a. Correct the gap by carefully bending the side electrode. Check the gap

after each adjustment.

5. Install the spark plug carefully by hand to avoid

cross threading.

6. Tighten the spark plug to the recommended

torque until the gasket is compressed. See

Specifications for the correct torque rating.

a. Tighten an additional 1/2 to 1/3 turn more

with a spark plug wrench if the torque

rating isn’t available.

7. Reconnect the spark plug lead to the spark plug.

CLEANING

WARNING! Use only a nonflammable solvent, not gasoline, to clean engine

parts. Keep all sources of ignition away from fuel related parts. Fumes are

flammable and may catch fire, causing a burn injury.

NOTICE! Do not clean the engine’s exterior with a garden hose or pressure

washer. Water can enter the engine through the air filter or muffler opening

and damage the cylinder.

1. Allow engine to cool for at least half an hour before cleaning.

2. Clean all exterior surfaces.

a. Check the cylinder fins periodically for dirt, dust and wood chips that

can interfere with proper cooling. Clogged fins can cause overheating

and as a result, lower power output. Remove debris between fins with

compressed air or brush.

3. Regularly remove build-up of carbon deposits on the muffler with a

wire brush.

4. Touch up any damaged paint.

5. Coat other areas that may rust with a light film of oil.

Fig. 2

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MAINTENANCE SCHEDULE

This schedule applies to normal operating conditions. If you operate your engine

under severe conditions, such as sustained high-load or high-temperature

operation or use in unusually wet or dusty conditions, consult a qualified

technician for recommendations applicable to your individual needs and use.

Regular Service Period *

Daily

Every Week

Every Month

If Damaged/

Unusable

As Needed

Performed at every indicated month or

operating hour interval, whichever comes

first.

Air Cleaner

Clean

X**

Replace

X

Fuel Tank / Fuel Cap Check X

Clean

X

Fuel Filter

Check

X

Replace

X

Gearbox/Hammer Box Clean X

Add Grease

X

Fuel Tank Check X

Clean

X

Fill Fuel

X

Chisel Sharpness X

Sharpen X

Replace X

Muffler

Check

X

Remove Carbon

Deposit X

Engine Cooling Fins Check X

Clean X

Spark Plug Clean / Adjust X

Replace

X

* For commercial use, log hours of operation to determine proper maintenance intervals.

** Service more frequently when used in dusty areas.

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LUBRICATION

Fill the gearbox with grease before using. Use Shell Gadus S3 V220C 2 Grease

(SKU 8540627). Follow the maintenance schedule and refill the gearbox with

grease when low.

1. Open the gearbox cover (T).

2. Lubricate the gear and the connecting rod with grease.

3. Reseal the gearbox cover.

STORAGE

DANGER! Fuel is very flammable. Use extreme care when handling or storing

fuel. An ignition source contacting the fumes or fuel may result in a fire or

explosion and cause fatal or serious injuries to you or a bystander.

When not in use for an extended period, apply a thin coat of lubricant to the

steel parts to avoid rust. Remove the lubricant before using the engine again.

Proper storage preparation is essential for keeping your engine in good condition.

The steps below will help keep rust and corrosion from impairing your engine’s

function and appearance. The engine will easier to start when used again.

Take the following precautions if storing your engine for more than 30 days.

• Store in a clean dry area.

• Change the oil while the engine is still warm.

• Clean the debris, chaff or grass from the engine’s surface.

• Drain all fuel from the fuel tank into a proper receptacle for storage.

• Disconnect the spark plug lead and cover the end with insulating tape.

Place the lead where it cannot come in contact with spark plug or the

equipment the engine is mounted on.

• Remove the spark plug. Place 1 tsp (5 ml) of oil into the spark plug hole.

• Pull starter rope slowly 8-10 times to properly coat the cylinder bore and piston

for storage. Replace spark plug and tighten. Any residual oil will burn off in

subsequent starts. This may result in white smoke emission from muffler.

• Store this engine in the horizontal position with the spark plug up. Do not

store or transport with the spark plug down.

NOTE: Storing or transporting with the spark plug down will result in hard

starting and/or engine smoking.

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STORING ENGINE WITH FUEL

1. If your engine will be stored with gasoline in the fuel tank and carburetor, it

is important to reduce the hazard of gasoline vapour ignition.

a. Select a well-ventilated storage area away from any appliance that

operates with a flame, such as a furnace, water heater or clothes dryer.

b. Avoid any area with a spark-producing electric motor.

c. Avoid any area where power tools are operated.

2. If possible, avoid storage areas with high humidity, as this promotes rust

and corrosion.

3. Keep the engine level in storage. Tilting can cause fuel or oil leakage.

4. Cover the engine once the engine and exhaust system are cool. Some

materials can ignite or melt if the engine and/or exhaust system is hot. Do

not use sheet plastic as a dust cover.

a. Use a cover made from a breathable fabric to prevent rust and corrosion.

5. Store with gasoline that does not contain ethanol or a similar alcohol-

based fuel additive. Fuel with alcohol-based additives may Phase Separate

into gasoline, alcohol and water when stored for more than a few weeks.

FUEL

IMPORTANT! Avoid fuel phase separation by using premium quality fuel of at

least 89 octane.

Gasoline with ethanol or alcohol-based additives may phase separate and

deteriorate in storage. Phase separated gasoline will cause hard starting and leave

gum deposits that clog the fuel system. Phase separated fuel will contain water that

will prevent the engine from working and may damage the engine systems. If that

gasoline in your engine deteriorates during storage, you may need to have the

carburetor and other fuel system components serviced or replaced.

The length of time that gasoline can be left in your fuel tank and carburetor without

causing functional problems will vary with factors such as gasoline blend, storage

temperatures and the amount of fuel in the tank. The air in a partially filled fuel tank will

promote fuel deterioration, as will warm storage temperatures. Fuel problems may

occur in a few months or sooner if the gasoline was not fresh when the tank was filled.

Adding a gasoline stabilizer that is formulated for this purpose can extend fuel

storage life. Deterioration problems can also be avoided by draining the fuel tank

and carburetor prior to storage.

8658973 Gasoline Post Driver V4.1

20 For technical questions call 1-800-665-8685

ADDING A GASOLINE STABILIZER

1. Fill the fuel tank with fresh gasoline. If the tank is only partially filled, air in

the tank will promote fuel deterioration during storage.

2. Add gasoline stabilizer. Ensure that the instructions for that product

are followed.

3. Run the engine outdoors for ten minutes to ensure that treated gasoline

has replaced the untreated gasoline in the carburetor.

4. Stop the engine.

REMOVAL FROM STORAGE

1. Check the engine as described in the section Operation - Before Starting

the engine

2. If the fuel was drained during storage preparation, fill the tank with

fresh gasoline.

a. If you keep a container of gasoline for refueling, ensure that it

contains only fresh gasoline.

b. Gasoline will oxidize and deteriorate over time, causing hard starting

(see Fuel).

3. If the cylinder was coated with oil during storage preparation, the engine

will smoke briefly at start up. This is normal.

TRANSPORTING THE TOOL

WARNING! Transport the engine with an empty fuel tank or with the fuel

cock secured in the OFF position.

1. Keep the engine level when transporting to reduce the possibility of fuel leakage.

2. Turn the fuel valve to the OFF position.

DISPOSAL

Recycle a tool damaged beyond repair at the appropriate facility.

Contact your local municipality for a list of disposal facilities or by-laws for

electronic devices, batteries, oil or other toxic liquids.

IMPORTANT! DO NOT pollute the environment by allowing uncontrolled

discharge of waste oil.

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Powerfist 8658973 Owner's manual

Powerfist 8658973 Owner's manual

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