MasterForce 241-0409, Руководство оператора

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Page 14
OPERATION
DRILLING MODE OPERATION
For drilling in wood, use twist bits, spade
bits, power auger bits or hole saws .
1 . When drilling “through” holes, place a
block of wood behind the workpiece to
prevent ragged or splintered edges on
the back side of the hole .
2 . Select the desired speed to match the
planned operation .
3 . Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point, and then increase the
speed as the drill bit bites into the
material .
4 . If the drill/driver stalls, it is usually
because it is being overloaded . Release
the trigger switch immediately, remove
the drill bit from the work, and determine
the cause of stalling .
5 . Keep the motor running when pulling
the bit back out of the drilled hole . This
will prevent jamming .
For drilling in metal, use high-speed steel
twist drill bits .
1 . Use light oil on the drill bit to keep it
from overheating; the oil will prolong the
life of the bit and increase the drilling
action .
2 . When drilling a large hole, first use a
smaller bit to drill a small pilot hole to
prevent the larger bit from slipping .
3 . Select the desired speed to match the
planned operation .
4 . Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point . Maintain a speed and
pressure that allows cutting without
overheating the bit .
5 . If the drill/driver stalls, it is usually
because it is being overloaded . Release
the trigger switch immediately, remove
the drill bit from the work, and determine
the cause of stalling .
6 . Keep the motor running when pulling
the bit back out of the drilled hole . This
will prevent jamming .
SCREWDRIVER OPERATION
1 . Select the desired speed/torque range
to match the planned operation .
2 . Attach the desired fastener accessory
into the chuck .
3 . Make a few practice runs in a scrap
piece before working .
CHUCk REMOVAL (FIG. 13)
The chuck can be removed and replaced
with a new one .
1 . Remove the battery .
2 . Lock the trigger switch by placing the
direction-of-rotation selector in the
center position .
3 . Open the chuck jaws . Using a
screwdriver, remove the chuck screw by
turning it clockwise,
4 . Insert a 5/16-in . or larger hex key into
the chuck of the drill/driver and tighten
the chuck jaws securely .
5 . Tap the hex key sharply with a mallet in
a counter-clockwise direction . This will
loosen the chuck for easy removal .
6 . Attach a new chuck to the spindle and
tighten the chuck screw .
FIG.13
Hex wrench
Chuck jaws
Mallet