Makita HM0870C Power Hammer User Manual


 
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Repair
DISASSEMBLING
[3] DISASSEMBLY/ASSEMBLY
[3]-8 Armature (cont.)
Fig. 32
Fig. 33
Fig. 32A
(6) Disassemble Armature from Crank housing as illustrated in Fig. 32.
If it is difficult to remove as illustrated in Fig. 32, Crank shaft has to be removed in the following process.
1. Disassemble Barrel, Cylinder section as illustrated in Fig. 15.
2. Disassemble Crank cap, Seal ring, Air pipe and Piston as illustrated in Fig. 16.
3. Remove Crank shaft from Crank housing as illustrated in Figs. 19 and 20.
4. Remove Armature using 1R306, 1R239, 1R023 and arbor press as illustrated in Fig. 32A.
Crank housing
Armature can be removed by striking Crank
housing with plastic hammer.
Crank housing
Put Crank housing on 1R023.
Set 1R306 to ram of Arbor press.
Press down Armature using 1R239.
Armature
1R239
1R306
Armature
1R023
(7) Armature can be disassembled as illustrated in Fig. 33.
Flat washer 12
Ball bearing 6203LLB
Fan 76
Insulation washer
Ball bearing 608DDW