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(2) Removal of the Hammer Case [7] <3> and the hammer assembly
Remove the four Tapping Screws (W/SP. Washer) D4 x 25 (Black) [6] <2> that connect the Hammer Case [7]
<3> with Housing (A). (B) Set [33] <30> and remove the Hammer Case [7] <3> and the hammer assembly
from Housing (A).(B) Set [33] <30>.
(3) Disassembly of the hammer assembly
Spindle [17] <14>
Hammer Spring
[14] <11>
Stopper [16] <13>
Remove the hammer assembly from the J-297 base for washer (S) and support the end surface of the Spindle
[17] <14>. With a hand press, push down either of the raised faces of Hammer [11] <8> to compress the
Hammer Spring [14] <11>. In this position, extract the two Steel Balls D5.556 [10] <7> from the cam grooves
of the Spindle [17] <14> and Hammer [11] <8> with a small flat-blade screwdriver or a similar tool. Then,
slowly release the hand press and lift Hammer [11] <8> and Washer (S) [15] <12> together to extract them
from the Spindle [17] <14>. The Hammer Spring [14] <11> can then be removed.
Spindle [17] <14>
Hammer [11] <8>
(4) Removal of the Carbon Brushes 5 x 6 x 11.5 [29] <26>
Remove the two Brush Caps [30] <27>. Catch the flanges of the Carbon Brushes 5 x 6 x 11.5 [29] <26> with
a small flat-blade screwdriver or a similar tool and remove the Carbon Brushes [29] <26> at both sides.
Push down.
Washer (S) [15] <12>
J-297 base for washer (S)
Fig. 9
Mount the hammer assembly onto the
J-297 base for washer (S). With a hand
press, push down the top of the Spindle
[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. 9.)
Raised faces of hammer
Steel ball guide groove
Fig. 10
--- 32 ---
Top of spindle cam
Steel Ball D5.556 [10] <7>
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