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12
ADJUSTING CARBURETOR
(As Required)
GENERAL INFORMATION
The idle speed adjuster screw controls the throttle
opening at the idle position.
IDLE ADJUSTMENT
1. Start engine and allow it to run at high idle until
warm.
2. Turn the idle speed screw clockwise until drill
bit begins to move.
3. Turn idle screw counterclockwise 1 and 1/2 to
2 turn or until the drill bit stops (2,700 to 3,300
r/min).
Replacement of chuck should be done in the
following manner:
1. Remove bolt with hexagonal hole fixed in the
driving axle.
2. Insert accessory hexagonal bar (Part No.
895412-20960) into chuck and fix.
3. Fit 19 mm spanner onto driving axle and keep
it fitted.
4. Fit 10 mm box spanner onto the hexagonal bar
and turn it into direction as indicated by an
arrow to remove chuck.
5. Fit a new chuck in the reversed order of
removing.
REPLACEMENT OF CHUCK
Hexagonal bar
(Part No. 895412-20960)
Spanner (19 mm)Box spanner
(10 mm)