R
epair
P 8 / 13
< 1 > Disassembling of drill chuck See Fig. 1.
For replacing gear assembly, drill chuck has to be disassembled.
Take the following steps.
1. Firmly hold No.1R139 "Drill chuck extractor" with vise. And lock spindle with the drill chuck extractor.
2. Open the jaws of drill chuck fully and take off flat head screw M6 x 22 by turning clockwise.
3. Disassemble drill chuck with hex wrench inserted into drill chuck by turning the hex wrench anti-clockwise.
1R139 Drill chuck extractor
Fig. 1
Fig. 1A
If drill chuck is damaged, firmly hold the drill chuck with vise and turn spindle with wrench anti-clockwise
as illustrated in fig. 1A.
< Note >
For replacing other than gear assembly, it is not necessary to disassemble drill chuck.
< 2 > Disassembling housing See Fig. 2.
1. Take off brush holder caps and carbon brushes.
2. Slide mode change lever to the drill mode side.
3. Unscrew the following screws.
* Tapping screw PT 3 x 16 : 9 pcs.
* Pan head screw M 4 x 22 : 1 pc.
Mode change lever
Brush holder cap
Carbon brush
Brush holder cap
Pan head
screw M4 x 22 : 1 pc.
Tapping screw bind
PT 3x16 : 9 pcs.
Carbon brush
Slide mode change lever
to the drill mode side.
Fig. 2
