Manual Texas 7621BEX (page 16 of 64) (English, German, Danish, French, Italian)

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MAINTENANCE

Importance of maintenance

Good maintenance is cost-saving and essential for

safe and trouble-free operation.

WARNING:

Improper maintenance or failure to comply with

instructions, precautions can result in serious injury or

death. Always follow the manual prescribed

procedures and precautions.

To ensure a proper upkeep of your machine, the

following pages include a maintenance schedule and

description plus an inspection procedure of your

machine. For tasks that are more difficult, or require

special tools, maintenance should be carried out by

technician or qualified mechanic.

Maintenance safety

As with any type of power equipment, carelessness or

error on the part of the operator can result in serious

injury. It is impossible to warn against all hazards or

hazardous situations, it is therefore important that the

user of the machine exhibits vigilance to operate the

machine safely and rationally to avoid bringing yourself

and others in danger.

Safety precautions

Important: Before commencing any maintenance or

repair ensure that the engine is shutdown

To reduce the possibility of fire or explosion, be careful

when working around gasoline. Use only a

nonflammable solvent, not gasoline, to clean parts.

Keep cigarettes, sparks and flames and other sources

of ignition away from the machine.

Refueling

With the engine stopped, remove the fuel tank cap and

check the fuel level. Refill the tank if the fuel level is

low.

Fuel recommendations

 Use only unleaded gasoline octane 95 or

higher.

 Never use stale or contaminated gasoline or

an oil/gasoline mixture.

 Avoid getting dirt or water in the fuel tank.

Refuel in a well-ventilated area before starting the

engine. If the engine has been running, allow it to cool.

Refuel carefully to avoid spilling fuel. Do not fill above

the fuel strainer shoulder. After refueling, tighten the

fuel tank cap securely.

Engine oil level check

In order to check the engine oil level correctly the

engine must be stopped and the machine in a level

position.

How to:

 Remove the filler cap/dipstick and wipe it

clean.

 Insert and remove the dipstick into the filler

neck to check oil level. Note: The Oil level

must be within the specified interval at the end

of the stick. If the oil level is at the lower end of

the interval, refill with oil SAE.

 Screw in the filler cap / dipstick securely.

Warning: Never refill oil over the higher end of the

interval, this will damage the engine.

Engine oil change

Drain the old / staled oil while the engine is warm.

Warm oil is more fluid then cold and drains better.

How to:

 Place a suitable container below the engine to

catch the used oil.

 Remove the filler cap and the drain plug.

 Drain completely!

 Reattach the drain plug, and tighten it

securely.

 Refill new recommended oil.

Please dispose the used engine oil environmentally

correct. We suggest that you keep the used oil in a

sealed container and dispose at your recycling center

or service station for reclamation. Do not throw it in the

waste; pour it on the ground; or down a drain.

Engine oil specifications

Oil is affecting the performance of your machine and

service life. Use 4-stroke automotive SAE 30 oil.

Spark Plug

Check the spark plug for dirt and grime; if necessary

clean it with a copper wire brush.

 First time after approximately 10 hours of

operation

 Hereafter service the spark plug after every 50

hours of operation.

How to:

 Disconnect the spark plug cap, and remove

any dirt from around the spark plug area.

 Remove the spark plug with a spark plug

wrench. Inspect the spark plug.

 Replace it if the electrodes are worn, or if the

insulator is cracked or chipped.

 Measure the spark plug electrode gap with a

suitable gauge.

 The gap should be 0.70 - 0.80 mm. Correct the

gap, if necessary, by carefully bending the side

electrode.

 Mount the spark plug carefully, by hand, to

avoid cross-threading.

 After the spark plug seats, tighten with a spark

plug wrench to compress the water. If

reattaching a used spark plug, tighten 1/8 - 1/4

turn after the spark plug seats. If installing a

new spark plug, tighten 1/2 turn after the spark

plug seats.

 Attach the spark plug cap.

Notice: An incorrect spark plug can cause engine

damage.

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Texas 7621BEX Manual

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