STIHL HT 56 C-E Instruction Manual download pdf (Page 33)

HT 56 C

English

31

The carburetor comes from the factory

with a standard setting.

On this machine it is no longer

necessary to adjust the carburetor.

It has been set at the factory to provide

an optimum fuel-air mixture in all

locations and operating conditions.

Adjusting Idle Speed

Engine stops while idling

N Warm up the engine for about

3 minutes.

N Turn the idle speed screw (LA)

slowly clockwise until the engine

runs smoothly – the saw chain must

not rotate.

Chain rotates when engine is idling

N Turn the idle speed screw (LA)

counterclockwise until the chain

stops running and then turn the

screw another 1/2 to 3/4 turn in the

same direction.

WARNING

If the saw chain continues to rotate when

the engine is idling, have your machine

checked and repaired by your servicing

dealer.

If engine is down on power, difficult to

start or runs poorly at idling speed, first

check the spark plug.

Fit a new spark plug after approx. 100

operating hours or earlier if the

electrodes are badly eroded.

Wrong fuel mix (too much engine oil in

the gasoline), a dirty air filter and

unfavorable running conditions (mostly

at part throttle etc.) affect the condition

of the spark plug. These factors cause

deposits to form on the insulator nose

which may result in trouble in operation.

Removing the Spark Plug

N Shut off the engine.

N Remove the spark plug boot (1).

N Unscrew the spark plug (2).

Adjusting the Carburetor

0815BA006 KN

Spark Plug

1

547BA041 KN

2

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