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R
epair
P 13 / 23
< 2 > Disassembling housing.
(1) Pull down chuck cover and detach cap 31 as illustrated in Fig. 1.
(3) Remove foot by unscrewing 2 pcs. of tapping screws 4x18, if it is attached.
(4) Dismount housing R from housing L by unscrewing 14 pcs. of tapping screws 4x18.
(2) Set change lever to the "rotation with percussion" mode as illustrated in Fig. 5.
Otherwise, cam shaft is lifted up and ball bearing 606ZZ, cup washer
and conical compression spring 7-14 easily come out from housing L.
See Fig. 5A.
Fig. 5
< 3 > Disassembling clutch section.
(1) Disassemble the chuck section as per < 1 > and < 2 >, and take out tool holder unit from housing.
See Fig. 6.
(2) Remove the following parts from tool holder.
* Oil seal 25 * Ball bearing 6905LLB * Plane bearing 26
* Piston joint * 2 pcs. of flat washers 12 * Piston cylinder
* Striker
Ball bearing 6905LLB can be easily removed by using 1R045 "Large gear extractor".
Housing L
Ball bearing 606ZZ
Cup washer
Conical compression
spring 7-14
Fig. 5A
Tool holder.
Ball bearing 6905LLB
Oil seal 25
Plane bearing 26
Piston join
Piston cylinder
Flat washers 12
Flat washers 12
Striker
Flat washer 29
Compression spring 29
Tool holder.
Flat washer 29
Compression spring 29
Spur gear 49
Plane bearing 26
Ball bearing 6905LLB
Ring spring 26
Piston cylinder
Piston joint
Fig. 6
Fig. 7
Ring spring 26