Hitachi WH 12DAF2 Technical Data And Service Manual page 25

1
Anvil (B) [9]
Retaining Ring [2]
Washer (D) [3]
Gap of retaining ring
Hold the body and adjust gap of the retaining ring to
groove of anvil (B), then insert a small flat-blade
screwdriver into the groove at an angle.
3
Slide the screwdriver under one side of the gap of
the retaining ring.
Then slowly raise the other side of the retaining ring with a screwdriver until it is free. The Guide Sleeve [5] can
now be removed. Avoid quickly raising the retaining ring or it may fly out forcefully.
The retaining ring can also be easily removed by widening the gap of the retaining ring with the jig for retaining
ring and slowly raising the retaining ring with a small flat-blade screwdriver.
(7) Disassembly of the hammer assembly
Spindle (B) [17] <14>
Hammer Spring
[14] <11>
Stopper [16] <13>
Small flat-blade
screwdriver
Guide Sleeve [5]
Fig. 7-1
Fig. 7-3
Push down.
Hammer [11] <8>
Washer (S) [15] <12>
J-297 Base for washer (S)
Fig. 8
2
Press down washer (D) with the screwdriver.
4
Slowly raise the retaining ring using the end face of
the guide sleeve as a fulcrum.
Mount the hammer assembly onto
the J-297 base for washer (S).
With a hand press, push down the
top of Spindle (B) [17] <14> to
compress the Hammer Spring [14]
<11>. In this position, remove the
Stopper [16] <13> with a flat-blade
screwdriver, then release the hand
press. (See Fig. 8.)
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Fig. 7-2
Fig. 7-4