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Box spanner
(10 mm)
Hexagonal bar
(Part number 895412-20960)
Idle speed adjustment screw
REPLACEMENT OF CHUCK
Replacement of chuck should be done in the following
manner:
1.
2.
3.
Spanner (19 mm)
4.
5.
Spanner (19 mm)
ADJUSTING CARBURETTOR
(As Required)
GENERAL INFORMATION
The idle speed adjuster screw controls the throttle
opening at the idle position.
IDLE ADJUSTMENT
1.
2.
3.
CLEANING CYLINDER FINS
(Check Periodically)
1.
2.
CLEANING SILENCER AND EXHAUST
PORT
(Check Periodically)
1.
2.
3.
14
Fit 19 mm spanner onto driving axle and keep it
fitted.
Remove bolt with hexagonal hole fixed in the
driving axle.
Insert accessory hexagonal bar (Part number
895412-20960) into chuck and fix.
Fit 10 mm box spanner onto the hexagonal bar and
turn it into direction as indicated by an arrow to
remove chuck.
Fit a new chuck in the reversed order of removing.
Start engine and allow it to run at high idle until
warm.
Turn the idle speed screw clockwise until drill bit
begins to move.
Turn idle screw anticlockwise 1 and 1/2 to 2 turn or
until the drill bit stops (2700 to 3300 r/min).
NOTE
When there is some trouble with the carburettor,
contact your dealer.
NOTE
Clogged fins will cause poor engine cooling.
Carefully remove housing and clean dirt and dust
from fins.
Reinstall housing.
Carefully remove housing halves.
Remove and disassemble silencer.
NOTE
Be careful not to scratch the cylinder or piston when
cleaning the cylinder exhaust port.
Clean deposits from cylinder exhaust port and
silencer.
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