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R
epair
< 2 > Disassembling housing.
(1) Pull down chuck cover and detach cap 31 as illustrated in Fig. 1.
(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.
Ball bearing 606ZZ
Conical compression
spring 7-14
Housing L
(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.
< 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.
Tool holder.
Ring spring 26
Flat washer 29
(2) Remove the following parts from tool holder.
* Oil seal 25
* Piston joint
* Striker
Ball bearing 6905LLB can be easily removed by using 1R045 "Large gear extractor".
Oil seal 25
Ball bearing 6905LLB
Cup washer
Ball bearing 6905LLB
Spur gear 49
Plane bearing 26
Piston joint
Piston cylinder
Compression spring 29
* Ball bearing 6905LLB
* 2 pcs. of flat washers 12 * Piston cylinder
Tool holder.
Ring spring 26
Flat washer 29
Compression spring 29
* Plane bearing 26
Plane bearing 26
Striker
Piston cylinder
P 13 / 23
Fig. 5
Fig. 5A
Fig. 6
Flat washers 12
Piston join
Flat washers 12
Fig. 7
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