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Replacing the spark plug
CAUTION:
Do not touch the spark plug or plug cap if the engine is
running (high voltage).
Switch off the engine before starting any maintenance work.
A hot engine can cause burns. Wear protective gloves!
The spark plug must be replaced in case of damage to the
insulator, electrode erosion (burn) or if the electrodes are very
dirty or oily.
Pull the plug cap (1) off the spark plug. Use only the combination
wrench supplied with the saw to remove the spark plug.
CAUTION: Use only the following spark plugs: NGK BPMR
7A.
Electrode gap
The electrode gap must be .020" (0.5 mm).
A
.020"
Replacing the starter cable
Unscrew four screws (2). Remove fan housing (3).
Remove all pieces of cable.
Unscrew screw (4). Hold the cable drum (7) rmly and remove
the drive spindle (5) and spring (6).
CAUTION: Danger of injury! The return spring unit (9) is
not secured and can fall out of the fan housing. The return
spring is under tension and pop out of the unit! If this hap-
pens, the spring can be replaced in the unit as shown in the
illustration (note the direction of rotation!).
Secure the return spring unit (9) against falling out and care-
fully take off the cable drum (7).
Thread a new cable (dia. 0.12 (3 mm), length 35.43" (900 mm),
as shown in the illustration (note the stop (11)) and tie a knot
in both ends.
Pull the knots (12) into the cable drum (7) and starter handle
(10).
Put the cord drum back on and turn gently until the return spring
catches.
Install the drive spindle (5) and spring (6), screw in the screw
(4) and tighten.
Guide the cable into the space (8) on the drum and use the
cable to turn the drum two turns clockwise.
Hold the cable drum with your left hand and with your right hand
untwist the cable, pull it tight and hold it.
Carefully release the cable drum. The spring will wind the cable
around the drum.
Repeat three or four times. The starter grip should now be held
upright on the fan housing.
CAUTION: Danger of injury! Secure the cable grip when
pulled out! It will whip back if the cable pulley is released
by accident.
NOTE: With the cable pulled all the way out, it must still be
possible to turn the pulley another 1/4 turn against the return
spring.
When replaceing fan housing, it may be necessary to pull the
starter cable lightly so that the cable pulley catches.
B