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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-6. Torque limiter section
DISASSEMBLING
(1) Disassemble Tool holder section. (Figs. 4 to 6 for BHR242/ Figs. 8 to 13 for BHR243.)
(2) Disassemble Change lever. (Figs. 27 to 29)
(3) Remove Gear housing section from Motor housing, and then remove Rotor section from Gear housing section.
(Figs. 31 to 33)
(4) While holding Gear housing section by hand, tap the top of Tool holder (guide) complete with plastic hammer. (Fig. 36)
Note: 1. Grease falls from Gear housing section. Receive the grease with cloths.
2. Do not lose Flat washer 30 between Tool holder section and Inner housing.
(5) Remove Stop ring EXT U-6 from Cam shaft. (Fig. 37)
The ring tends to be caught by Spur gear 51, and therefore, it interferes in the disassembling step.
(6) Remove Tool holder section. (Fig. 37)
(7) Set 1R045 and 1R369 to Tool holder section. (Fig. 38)
(8) Compress Compression spring 31 of Tool holder section by turning the handle of 1R045 clockwise. (Fig. 39)
(9) Remove Spiro lock washer 30 from Tool holder (guide) complete by gradually sliding it on Tool holder (guide) complete
with Thin-slotted screwdriver. (Fig. 40) Tool holder (guide) section are disassembled as drawn in Fig. 41.
Fig. 36
Tool
holder
section
Fig. 39
Spiro lock washer 30
1R045
1R369
(Compression
spring 31)
Fig. 41
Tool holder (guide)
complete
Steel ball 3 (4 pcs.)
ASSEMBLING
Assemble by reversing the disassembly procedure.
Note: 1. Set Spiro lock washer 30 in place with 1R369 and 1R045.
2. After assembling the components of Tool holder section, set Flat washer 7 and Stop ring EXT U-6 to Cam shaft.
(Refer to Fig. 37)
Fig. 37
Tool holder section
Super gear 51
Stop ring
EXT U-6
Flat washer 7
Swash bearing section
Fig. 40
Magnified view of Fig. 39
1R045
Thin-slotted
screwdriver
Driving flange
Pin 6 (6 pcs.)
Spur gear 51
Fig. 38
Tool holder section
1R369
Tool holder (guide) complete
Flat washer 30
Flat washer 30
(thick shape)
(thin shape 2 pcs.)
Compression spring 31
P 13/ 25
1R045
Ends of Spiro lock
washer 30
1R369
Spiro lock washer 30
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