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OP9
(1)
OP10
OP11
30
English
7. Operation
■ ADJUSTMENT OF IDLING SPEED
• The engine idling speed is preadjusted at the factory
so that the engine keeps running without moving the
drill when releasing the throttle lever to the idling
position. However, due to changes in engine
conditions, it may be necessary to adjust the idling.
• To increase idling, screw idle adjustment screw in,
until preferred speed is obtained. To decrease idling,
unscrew idle adjustment screw until preferred speed
is obtained.
(1) Idle adjustment screw
■ WHEN INSTALL OR LOOSEN THE CHUCK MORE
SECURELY (OP10,11)
• Set a 19mm spanner between gearcase and drill
chuck to lock drive shaft. Turn on lock lever first,
then hit the mounted chuck handle with a hammer to
screw in (clockwise) or screw out (counterclockwise)
the chuck.
• Use chuck mount wrench in place of chuck handle
and tighten or untighten manually instead of hitting.
Do not hit the chuck mount wrench.
(1) 19mm spanner
(2) Lock lever
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