HITACHI DS 13DV2 User guide

MODEL DS 13DV2

1. REPAIR GUIDE

Be sure to remove the batteries from the main body before servicing . Inadvertent triggering of the switch with the
battery connected will result in a danger of acc idental turning of the motor.

1-1. Precautions in Disassembly and Reassembly

[Bold]

The
assembly diagram.

1-1-1. Disassembly

numbers in the des criptions below correspond to the item num bers in the parts list and ex ploded

(1) Remove the Drill Chuck

(a) Slide the Drill Chuck

the jaws of the Drill Chuc k
Turn th e Special Screws M6 x 23
threaded.

(b) Fit the Hexagonal B ar Wrench for M10 into the Drill Chuc k

turning counterclockwise. If it is difficult to loosen, use a pipe or other tool.
(Note) Do not loosen by tapping with a hammer or the lik e.

Carry out operations (a) thr ough (b) with the dr iver unit c lamped in the s tock v ice. It is rec ommended to fit a

piece of cloth between the driv er unit and the vice to protect the Housing

[2]

. (See Fig. 6)

[2]

Sleeve to FREE and turn it counterclockwise (when viewed in front) to fully open

[2]

.

[1]

clockwise and remove them. Take care as they are left-hand

[2]

as indicated in Fig. 6 and rem ove it by

[31]

from scratching.

Hexagonal Bar Wrench

Drill Chuck

[2]

FREE

Stock Vice

(c) Align the number " 1" at the Cap

Housing

Cloth

Fig. 6

[4]

with the triangle mark at the Housings (A) and (B)

−1−

[31]

[31]

.

(2) Removing Housing (B)

[31]

.

Remove the s even Tapping Screws D3 x 16

[31]

(B)

(3) With Housing (B)

while holding their battery loading sections .

[31]

removed, all the internal parts, assembled or separate, can be taken out as they are.

(a) Lift the entire content from Housing (A)
(b) Remove the Cap

[4]

and the Click Spring

(Note) Take care not to remove the Nut

(c) Turn the Motor

from the Rear Case

(d) Remove the Shift Arm

[37]

.

[26]

until a click sound is heard on the left side when viewed in the rear and remov e it

[17]

.

[37]

from the Rear Case

(e) Remove the four screws D3 x 12
(f) Remove the Washer (A)

Lock Ring

[12]

, and Steel Ball

six Needle Rollers (C)

[16]

, Ring Gear

[11]

[10]

and the twelve Steel Balls

[27]

secured to the driver unit. Gently open Housings (A) and

[31]

while holding the Motor

[8]

from the Front Case

[5]

from the Front Case

[17]

and remove the Shift Knob

[18]

connecting the Front Case

[13]

, Planet Gear (C)

[9]

[15]

in sequence from the Front Case

[11]

.

[26]

and Cap

[9]

.

.

[9]

and Rear Case

, Carrier

[14]

[9]

. Exercise care not to lose the

[4]

.

[38]

from the Shift Arm

[17]

.

, Needle Roller (C)

[10]

,

(4) Removing the Spring

Since the Nut
the Nut

[5]

[5]

removed, the Spring

[6]

and Washer (D)

is screwed into the Front Cas e

[6]

(Note) Avoid disassembling the Fr ont Cas e

[7]

[9]

and Washer (D)

[9]

.

, remove the Nut

[7]

can be removed from the Front Case

[5]

by turning counterc lockwis e. With

(5) Disassembly of the power s upply unit

(Note) Do not disconnect the three FET internal wires soldered to the DC Speed Contr ol Switc h
Disassembly of the Motor

[26]

, DC Speed Contr ol Switc h

[34]

, Motor Spacer

[25]

and Fin
step (3) can be carried out in the following procedure.
Disconnect the Internal Wires
With one Bind Screw M 3 x 7

[34]

and the Fin

[42]

can be taken apart.

[33]
[41]

Remove the two Machine Sc rews M4 x 6
When disconnecting the Internal Wires
be sure to remove the two Machine Screws M3 x 5

and

[36]

of Motor

[26]

with a soldering iron.

removed, the FET (Field Effect Transistor ) of DC Speed Control Switch

[29]

and take the Motor

[33]

and

[36]

[32]

of Motor

securing the flag-shaped terminal. (See Fig. 7)

[26]

and Motor Spacer

[26]

from the DC S peed Control Switch

1-1-2. Reassembly

[42]

[25]

[9]

.

[34]

.

removed in

apart.

[34]

,

Reassembly c an gener ally be carried out as the revers e of the disassembly procedure, with some items to be
noted as follows.

(1) Assembly of the power supply unit

(a) Be sure to perform wiring connection as indicated in the wir ing diagr am . (Fig. 7)

−2−

Motor Spacer

[25]

Spring Washer M4

Machine Screw M4 x 6

DC Speed Control Switch

Machine Screw M3 x 5

Flag-Shaped Terminal

Terminal Housing (A) ( + ) side

[30]

[29]

Internal Wire (Red)

[34]

[32]

[36]

Motor

[26]

Internal Wire (Black)

[42]

Fin

Bind Screw M3 x 7

Terminal Housing (B) ( - ) side

Terminal Support

[33]

[41]

[40]

Fig. 7

(Note) Do not deform the bendable legs of the FET attached to the DC Speed Control Switch

(b) Pay attention to the polarity of the Motor

when soldering the Internal Wires

[36]

to the Motor

the Motor

[26]

[26]

. The projected side of

is positive. (Fig. 8)

(Note) When installing the Motor Spac er

to the Motor
terminal of the Motor

[26]

, align the positive

[26]

marking on the Motor Spacer

[26]

[33]

and

[25]

with the

[25]

and

Marking

Projection: positive

Motor spacer

tighten with the Machine Screw M4 x 6

[29]

and the Spring Washer 4

(c) Apply grease (Hitachi motor greas e No. 29) to the pinion pressed into the Motor

[30]

.

Fig. 8

[26]

.

[34]

.

(2) Reassembly of the clutch unit

(a) Install the Washer (D)

[7]

When installing Washer (D)
projection on the Front Cas e

and the Spring

[7]

into the Front Case

[9]

.

[6]

into the Front Case

[9]

−3−

[9]

. (See Fig. 9)

, align the notch of Washer (D)

[7]

with the