Operation - Makita BHP444 Bedienungsanleitung

counterclockwise rotation.
When the reversing switch lever is in the neutral position,
the switch trigger cannot be pulled.
CAUTION:
Always check the direction of rotation before
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operation.

Use the reversing switch only after the tool comes
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to a complete stop. Changing the direction of
rotation before the tool stops may damage the tool.
When not operating the tool, always set the
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reversing switch lever to the neutral position.
Speed change
Fig.5
To change the speed, first switch off the tool and then
slide the speed change lever to the "2" side for high
speed or, "1" side for low speed. Be sure that the speed
change lever is set to the correct position before
operation. Use the right speed for your job.
CAUTION:
Always set the speed change lever fully to the
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correct position. If you operate the tool with the
speed change lever positioned halfway between
the "1" side and , "2" side, the tool may be
damaged.
Do not use the speed change lever while the tool is
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running. The tool may be damaged.
Selecting the action mode
Fig.6
This tool employs an action mode change lever. Select
one of the three modes suitable for your work needs by
using this lever.
For rotation only, slide the lever so that it points toward
the mark on the tool body.
For rotation with hammering, slide the lever so that it
points toward the mark on the tool body.
For rotation with clutch, slide the lever so that the it
points toward the mark on the tool body.
NOTE:
When changing the position from "
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may be a little difficult to slide the mode change
lever. At this time, switch on and run the tool for a
second at the "
slide to your desired position.
CAUTION:
Always set the lever correctly to your desired mode
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mark. If you operate the tool with the lever
positioned halfway between the mode marks, the
tool may be damaged.
Adjusting the fastening torque
Fig.7
The fastening torque can be adjusted in 16 steps by
turning the adjusting ring so that its graduations are
aligned with the arrow on the tool body. The fastening
" to "
" position, then stop the tool and
torque is minimum when the number 1 is aligned with
the arrow, and maximum when the number 16 is aligned
with the arrow.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to determine
which torque level is required for a particular application.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
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battery cartridge is removed before carrying out
any work on the tool.
Installing side grip (auxiliary handle)
Fig.8
Always use the side grip to ensure operating safety.
Insert the side grip so that the protrusions on the grip
base and steel band fit in between the grooves on the
tool barrel. Then tighten the grip by turning clockwise.
Installing or removing driver bit or drill bit
Fig.9
Turn the sleeve counterclockwise to open the chuck
jaws. Place the bit in the chuck as far as it will go. Turn
the sleeve clockwise to tighten the chuck.
To remove the bit, turn the sleeve counterclockwise.
Installing bit holder
Fig.10
Fit the bit holder into the protrusion at the tool foot on
either right or left side and secure it with a screw.
When not using the driver bit, keep it in the bit holders.
Bits 45 mm long can be kept there.
Adjustable depth rod
Fig.11
The adjustable depth rod is used to drill holes of uniform
depth. Loosen the clamp screw, set to desired position,
then tighten the clamp screw.
Hook
Fig.12
The hook is convenient for temporarily hanging the tool.
", it This can be installed on either side of the tool.
To install the hook, insert it into a groove in the tool
housing on either side and then secure it with a screw.
To remove, loosen the screw and then take it out.
OPERATION
Hammer drilling operation
Fig.13
CAUTION:
There is a tremendous and sudden twisting force
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exerted on the tool/bit at the time of hole
break-through, when the hole becomes clogged
with chips
reinforcing rods embedded in the concrete. Always
use the side grip (auxiliary handle) and firmly hold
7
and particles, or when striking