Operation - Makita DHP481Z Instruction Manual

Do not use the speed change lever while the tool
•
is running. The tool may be damaged.
Fig.8
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.
Selecting the action mode
CAUTION:
Always set the ring correctly to your desired mode
•
mark. If you operate the tool with the ring
positioned halfway between the mode marks, the
tool may be damaged.
Fig.9
This tool employs an action mode changing ring. Select
one of the three modes suitable for your work needs by
using this ring.
For rotation only, turn the ring so that the arrow on the
tool body points toward the
For rotation with hammering, turn the ring so that the
arrow points toward the
For rotation with clutch, turn the ring so that the arrow
points toward the mark on the ring.
Adjusting the fastening torque
(screwdriver mode "
Fig.10
The fastening torque can be adjusted in 21 steps by
turning the adjusting ring so that its graduations are
aligned with the pointer on the tool body.
First, slide the action mode change lever to the position
of symbol.
The fastening torque is minimum when the number 1 is
aligned with the pointer, and maximum when the
marking is aligned with the pointer. The clutch will slip at
various torque levels when set at the number 1 to 21.
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.
NOTE:
The adjusting ring does not lock when the pointer
•
is positioned
graduations.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before carrying out
any work on the tool.
mark on the ring.
mark on the ring.
")
only halfway between
Installing side grip (auxiliary handle)
Fig.11
Always use the side grip to ensure operating safety.
Insert the side grip so that the groove on the arm fit in
one of the counter parts on the tool. Then tighten the
grip by turning clockwise.
Depending the operations, you can install the side grip
either right or left side of the tool.
Installing or removing driver bit or drill bit
Fig.12
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.13
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.14
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.15
The hook is convenient for temporarily hanging the tool.
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

Fig.16
Hammer drilling operation
CAUTION:
There is a tremendous and sudden twisting force
•
exerted on the tool/bit at the time of hole break-
through, when the hole becomes clogged with
the
chips and particles, or when striking reinforcing
rods embedded in the concrete. Always use the
side grip (auxiliary handle) and firmly hold the tool
by both side grip and switch handle during
operations. Failure to do so may result in the loss
of control of the tool and potentially severe injury.
First, slide the action mode change lever so that it
points to the
aligned in any torque levels for this operation.
Be sure to use a tungsten-carbide tipped bit.
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light
8
marking. The adjusting ring can be