Hitachi DV18DL - 18V 3.0Ah Lithium Ion Cordless Hammer Drill Service Manual page 29

(b) Mount the DC-Speed Control Switch [46] <47> that was not mounted in the above step (a) to Housing (A)
[38] <38>. Mount the Pushing Button [45] <46> to Housing (A) [38] <38>. Check that the protrusion of the
forward/reverse changeover lever of the DC-Speed Control Switch [46] <47> is inserted into the groove of
the Pushing Button [45] <46>.
(c) Mount the Strap (Black) [57] <55> to Housing (A) [38] <38>.
(d) Align Housing (A) [38] <38> with Housing (B) [38] <38> and secure with ten Tapping Screws (W/Flange)
D3 x 16 (Black) [36] <36>.
(e) Check for proper operation of the Front Cap [4] <4> and the Shift Knob [41] <41>. When the reassembly
procedure is completed up to step (e), ensure that every indication on the Front Cap [4] <4> from number
"1" to the hammer mark "
respectively and that the Front Cap [4] <4> turns moderately. If any indication on the Front Cap [4] <4>
cannot be aligned with the triangle mark on Housing (A). (B) Set [38] <38>, correctly remount the Front
Cap [4] <4> according to step (2) or (5) (c) as it is improperly mounted. Check for proper operation of the
Shift Knob [41] <41>. Check that the speed changes between high and low properly by shifting the Shift
Knob [41] <41>. If the speed cannot change properly or moderately, correctly remount the Shift Knob [41]
<41> according to step (3) (b) or (5) (b) as it is improperly mounted.
(7) Mounting the Drill Chuck 13VLRL-N (W/O Chuck Wrench) [2] <2>
Mount the Drill Chuck 13VLRL-N (W/O Chuck Wrench) [2] <2> to the spindle and tighten the Special Screw
(Left Hand) M6 x 23 [1] <1>.
(8) Mounting the Carbon Brushes 5 x 6 x 11.5 [34] <34>
Mount the two Carbon Brushes 5 x 6 x 11.5 [34] <34> to the Brush Block [33] <33> and secure the two Brush
Caps [35] <35> to the Brush Block [33] <33>. Check that the claws of the Carbon Brushes 5 x 6 x 11.5 [34]
<34> are properly inserted into the brush tubes.
(9) Reassembly of the Hook Ass'y [53] <53> or the Hook Ass'y (W/Light) [55] <59>
Check that the V-Lock Nut M5 [54] <54> is mounted to the Hook Ass'y [53] <53> or the Hook Ass'y (W/Light)
[55] <59>. Mount the Hook Spring [58] <56> and secure it with Special Screw (A) M5 [59] <57>. Make sure
to mount the Hook Spring [58] <56> 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 13VLRL-N (W/O Chuck
Wrench) [2] <2> matches the position of the Pushing Button [45] <46>. When the Pushing Button [45] <46>
is pressed from the (R) side, the rotating direction of the Drill Chuck 13VLRL-N (W/O Chuck Wrench) [2] <2>
should be clockwise as viewed from behind. Switch on and off the Models DV 18DL or DV 14DL using the
battery. Then turn the Drill Chuck 13VLRL-N (W/O Chuck Wrench) [2] <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 13VLRL-N (W/O Chuck Wrench) [2] <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.
" can be aligned with the triangle mark on Housing (A). (B) Set [38] <38>
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