Hitachi WH 12DH Technical Data And Service Manual page 29

1
Anvil (B) [8]
Retaining
Ring [1]
Washer (D) [2]
Gap of retaining ring
Hold the body and adjust gap of the retaining ring to
groove of the 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 the screwdriver until it is free. The Guide Sleeve [4] 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.
(6)
Spindle [15] <13>
Spring [12] <10>
Stopper [14] <12>
Small flat-blade
screwdriver
Guide Sleeve [4]
Fig. 9-1
Fig. 9-3
Push down.
Hammer [10] <7>
Washer (S) [13] <11>
J-297 Base for washer (S)
Fig. 10
2
Press down the 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 the
Spindle [15] <13> to compress the
Spring [12] <10>. In this position,
remove the Stopper [14] <12> with a
flat-blade screwdriver, then release
the hand press. (See Fig. 10.)
--- 26 ---
Fig. 9-2
Fig. 9-4