Hitachi HTC-DS12DVB2-TC [15/29] Repair guide

Hitachi HTC-DS12DVB2-TC [15/29] Repair guide
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10. REPAIR GUIDE
Be sure to remove the storage batteries from the main body before servicing. Inadvertent triggering of the switch
with the storage battery connected will result in a danger of accidental turning of the motor.
10-1. Precautions in Disassembly and Reassembly
The [Bold] numbers in the description below correspond to the item numbers in the Parts List and exploded
assembly diagram for the Model DS 12DVB2.
10-1-1. Disassembly
(1) Removal of the Drill Chuck 13VLRG-N (W/O Chuck Wrench) [2] (See Fig. 4.)
Remove the Drill Chuck 13VLRG-N (W/O Chuck Wrench) [2] of the fully assembled main body in accordance
with the following procedures.
(a) Fully open the jaws of the Drill Chuck 13VLRG-N (W/O Chuck Wrench) [2], and turn the Special Screw
(Left Hand) M6 x 23 [1] clockwise and remove it. Take care that it is left-hand threaded.
(b) Turn the hexagonal portion at the tip of the Drill Chuck 13VLRG-N (W/O Chuck Wrench) [2]
counterclockwise with a 19-mm socket wrench to remove the Drill Chuck 13VLRG-N (W/O Chuck Wrench)
[2] as shown in Fig. 4. If it is difficult to loosen, use a pipe extension or similar tool. Carry out steps (a) and
(b) with the main body clamped in the stock vise. It is recommended to fit a piece of cloth between the
main body and the vise to protect Housing (A).(B) Set [32] from scratching.
HIGH
Drill Chuck 13VLRG-N
(W/O Chuck Wrench) [2]
Fig. 4
Stock vise
Hexagonal portion
Socket wrench
Housing (A). (B) Set [32]
19-mm socket
Cloth
(2) Removal of Housing (B) [32]
First, align the number "22" on the Cap [4] with the triangle mark on Housing (A). (B) Set [32]. Remove the
seven Tapping Screws (W/Flange) D3 x 16 (Black) [29] secured to the main body. Gently open Housing (A).
(B) Set [32] while holding their battery loading sections.
(3) After Housing (B) [32] has been removed, all the internal parts, assembled or separate, can be taken out as
they are. Lift the entire contents from Housing (A) [32] while holding the Motor [28] and the Cap [4].

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