P 3 / 7
R
epair
(1) After removing Brush holder caps and Carbon brushes, remove Hammer section, Ring 41 and Internal gear 51
from Housing. (Fig. 5)
(2) Separate Internal gear case from Housing by removing four M4x12 Pan head screws. (Fig. 6)
(3) Remove eight PT3x16 Tapping screws. Now Housing (R) can be separated from Housing (L).
(1) Press down Hammer using Large gear extractor (1R045)
to align the opening for Steel ball insertion with the top
of cam groove on Spindle. And then remove Steel ball
5.6 (2pcs) from Spindle. (Fig. 7)
(2) Hold Hammer section as illustrated in Fig. 8, and release
it from the gear extractor.
Caution: Do not hold gear extractor as illustrated in Fig. 7
when releasing Hammer section from the gear extractor.
Failure to follow this instruction could cause Steel balls
3.5 to get out of hammer.
(3) Now Hammer section can be disassembled as illustrated
in Fig. 9
(4) After removal of Flat washer 24, Steel balls 3.5 can be
removed from Hammer. (Fig. 10)
*See next page for lubrication of Spindle section.
[3] Disassembling Housing
[4] Disassembling Hammer and Spindle Section
Fig. 5
Fig. 6
Fig. 8
Fig. 10
Fig. 9
Fig. 7
Pan head screw M4x12
Internal gear case
Hammer section
Ring 41
Internal gear 51
Brush holder cap
Housing
Carbon brush
Spindle
Top of
Cam groove
on Spindle
Opening for
Steel ball
insertion
Hammer
Spur gear 22
Flat washer 12
Pin 5
Hammer
Hammer
Compression
spring 25
Cup
washer 14
Steel ball 3.5
(24 pcs.)
Spindle
Flat washer 24
Spindle section
Steel ball 5.6
