Makita HR4002 Technical Information page 14

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -6. Torque Limiter Section
ASSEMBLE
1) After mounting Ball bearing 6904LLU, assemble the parts to Torque limiter complete in the order of Driving flange,
Conical compression spring 19-2 and Cup washer 8. (Fig. 41)
2) Fix the Cup washer 8 provisionally by turning it approx. 90 degree. And assemble Ball bearing 608DDW.
(Fig. 42)
3) Assemble Change plate. (Fig. 43)
4) Do the reverse step of disassembling.
Note: 1) Do not forget to mount Compression spring 5 (2 pcs.) to the Pins of Gear housing complete before
mounting Torque limiter section. (Refer to Fig. 39.)
2) Make sure that Seal ring is mounted to Gear housing complete. (Refer to Fig. 38.)
Fig. 41
Cup washer 8
Conical
compression
spring 19-2
Projection
Driving flange
Groove
Torque limiter
complete
Ball bearing
6904LLU
Fig. 43
Assemble Change plate by inserting between Driving flange and Torque limiter's helical gear.
4. While aligning this notch to
the groove of Torque limiter,
assemble Cap washer 8 to
the Shaft.
3. Face small Loop side to
Driving flange.
2. Mount Driving flange,
while fitting these projections
with the Groove of Torque
limiter 's Shaft.
1. Assemble Ball bearing
6904LLU to the Straight
bevel gear 7 side.
Change plate
Driving flange
Torque limiter's
helical gear
Fig. 42
6. Assemble Ball bearing
608DDW.
90
degree
5. Turn Cup washer 8 approx. 90 degree,
while pressing it toward the Driving
flange. Now Cup washer 8 is fixed
provisionally on the shaft of Torque
limiter complete.
P 14 / 20