Hitachi DS 18DMR Service Manual page 33

(b) Mount the DC-Speed Control Switch [42] that was not mounted in the above step (a) to Housing (A) [36].
Mount the Pushing Button [41] to Housing (A) [36]. Check that the protrusion of the forward/reverse
changeover lever of the DC-Speed Control Switch [42] is inserted into the groove of the Pushing Button
[41].
(c) Mount the Strap [52] to Housing (A) [36].
(d) Align Housing (A) [36] with Housing (B) [36] and secure with ten Tapping Screws (W/Flange) D3 x 16
(Black) [34].
(e) Verify proper operation of the Front Cap [4] and the Shift Knob [39]. When the reassembly procedure up
to step (e) is completed, ensure that the number "1" through the drill mark "
in alignment with the triangle mark on Housing (A). (B) Set [36] respectively and the Front Cap [4] turns
moderately. If the number "1" or the drill mark "
on Housing (A). (B) Set [36], correctly reinstall the Front Cap [4] referring to step (2) or (5) (c) as it is
improperly mounted. Verify proper operation of the Shift Knob [39]. Check that the speed changes
between high and low properly by shifting the Shift Knob [39]. If the speed cannot change properly or
moderately, correctly reinstall the Shift Knob [39] referring to step (3) (b) or (5) (b) as it is improperly
mounted.
(7) Mounting the Drill Chuck 13VLRK-N (W/O Chuck Wrench) [2]
Mount the Drill Chuck 13VLRK-N (W/O Chuck Wrench) [2] to the spindle and tighten the Special Screw (Left
Hand) M6 x 23 [1].
(8) Mounting the Carbon Brushes 5 x 6 x 11.5 [32]
Mount the two Carbon Brushes 5 x 6 x 11.5 [32] to the Brush Block [31] and secure the two Brush Caps [33]
to the Brush Block [31]. Check that the claws of the Carbon Brushes 5 x 6 x 11.5 [32] are properly inserted
into the brush tubes.
(9) Reassembly of the Hook Ass'y [48]
Check that the V-Lock Nut M5 [49] is mounted to the Hook Ass'y [48]. Mount the Hook Spring [53] and secure
it with the Special Screw (A) M5 [54]. Make sure to mount the Hook Spring [53] with its larger diameter side
pointing inward the housing.
(10) Other precautions in reassembling
After completion of reassembly, check that the rotating direction of the Drill Chuck 13VLRK-N (W/O Chuck
Wrench) [2] matches the position of the Pushing Button [41]. When the Pushing Button [41] is pressed from
the (R) side, the rotating direction of the Drill Chuck 13VLRK-N (W/O Chuck Wrench) [2] should be clockwise
as viewed from behind. Switch on and off the Models DS 18DMR and DS 14DMR using the battery. Then
turn the Drill Chuck 13VLRK-N (W/O Chuck Wrench) [2] by hand in forward and reverse direction to check that
the spindle lock properly works in either direction within a half rotation. Check that the runout of the Drill
Chuck 13VLRK-N (W/O Chuck Wrench) [2] is 0.8 mm or less at the position 110 mm away from the tip of the
chuck using a 12-mm dia. test bar.
" on the Front Cap [4] cannot reach the triangle mark
--- 30 ---
" on the Front Cap [4] are