Hitachi D 10VC User manual

MODEL D 10VC

−#1 −

1. ASSEMBLY/DISASSEMBLY GUIDE:

The circled numbers in the descriptions below correspond to the

part numbers in the Parts Price List for Type D10VC.

1-1 Disassembly:

A. Disassembly of Parts Within the Handle:

(1) Remove the Handle Cover:

Loosen the M4 x 20 +-Hd. Tapping Screws

, and remove

the Handle Cover

(2) Remove the Carbon Brush:

With a small minus-head screwdriver, lift up on the Brush

Holder

, and pull it out slightly. Next, pull out the

terminal portion which connects the Carbon Brush

and

the lead wire from the Reversing Switch Ass’y

. When

pulling the terminal, it is best to push the Carbon Brush fully

into the Brush Holder (see Fig. 2).

Fig. 2

(3) Remove the Cord:

Loosen the M4 x 16 +-Hd. Tapping Screws

which retain

the Cord Clip

, and remove the Cord

together with

the Cord Armor

B. Disassembly of the Armature Ass’y and Stator Ass’y:

(1) Loosen the M4 x 50 +-Hd. Tapping Screws 8and the

M4 x 35 +-Hd. Tapping Screws 7which retain the Gear

Cover 9, and remove the Gear Cover from the Housing

. Then, remove the Inner Cover Ass’y

and the

connected Armature Ass’y

from the Housing.

Terminal

Intermal Wire

Brush Holder

Carbon Brush

Stop Piece

Convex Portion

Terminal

Push

−#2 −

(2) Remove the Armature Ass’y from the Inner Cover Ass’y:

As illustrated in Fig. 3,

support the Inner Cover

Ass’y

with a tubular

jig, and push down on

the tip of the pinion

gear on the Armature

Ass’y

(3) Remove the Stator Ass’y

from the Housing:

First, remove the Fan

Guide

from the inside

of the Housing.

Then, loosen the M4 x 40 +-Hd. Tapping Screws

, and

lightly tap the end surface of the Housing with a wooden

hammer to loosen and remove the Stator Ass’y

C. Disassembly of the Drill Chuck:

On the Type D10VC, the Drill Chuck 2is fixed to the Spindle 4

by a 3/8″-24UNF-2A thread (right-hand thread).

First, fit a 14 mm

(9/16″) spanner to the

provided flat surfaces

on the shaft of the

Spindle.

Next, as illustrated

in Fig. 4 fit a J-90

Ring Ass’y to the

body portion of the

Drill Chuck Ass’y, and

secure the Ring Ass’y

in a vise. At this

time, insert the pin of

the ring assembly into

the Handle mounting

hole on the drill body

portion. Finally, fit the

14 mm (9/16″) spanner

to the provided flat surfaces on the shaft of the Spindle, and turn the

Spindle counter-clockwise to remove the Drill Chuck Ass’y 2.

Armature

Push

Inner Cover

φ60 - φ70

Fig. 3

Flat Surface of Spindle

Drill Chuck

Spanner

Ring Ass’y

(J-90)

Vise

Fig. 4

−#3 −

D. Disassembly of the Gear:

(1) Remove the Bearing Cap 3which is mounted on the

Gear Cover 9. In removal, ensure that the spanner

used matches the dimensions of the Bearing Cap 3

(Hitachi’s J-29 Spanner is recommended). Also,

carefully note that the Bearing Cap is left-hand

threaded.

(2) Occasionally, the ball bearing fitted in the Inner Cover

Ass’y

will adhere to the Spindle 4during dis-

assembly. In this case, remove the ball bearing from

the Spindle.

(3) As illustrated in Fig. 5,

support the end surface

of the Gear Cover 9

with a tubular jig, and

push down on the end of

the Spindle 4with an

arbor press or similar

tool to remove the

Spindle. At this time,

the Gear

will be

simultaneously removed

from the Spindle.

1-2 Assembly:

Assembly can be accomplished by

following the disassembly pro-

cedures in reverse. However,

special attention should be given

to the following items:

A. Wiring Operation:

(1) When connecting the lead wire terminal to the Carbon

Brush

, ensure the terminal is inserted in the direction

illustrated in Fig. 2.

(2) Ensure that internal wiring is accomplished in accordance

with the illustrations in Fig. 6. When reassembling the

Handle Cover, be very careful not to pinch or damage the

wires inside.

Fig. 5

φ35

Tubular

Jig

Gear

Gear Cover Spindle

Push

−#4 −

B. Lubrication and Adhesive Guide:

(1) Lubrication

Gear Cover Inside..................HITACHI MOTOR GREASE

No. 29 (0.033 Lbs)

Armature Pinion and..............HITACHI MOTOR GREASE

Gear No. 29

(2) Adhesive

Bearing Cap...........................Biska 18-M

C. Tightening Torque for Fastening Screws:

M4 Tapping Screw.................15 - 25 kgf-cm

(13.0 - 21.7 in-lb)

Bearing Cap...........................100 - 150 kgf-cm

(86.8 - 130 in-lb)

Screw for Terminal.................2.5 - 4.5kgf-cm

(2.2 - 3.9 in-lb)

Drill Chuck Ass’y....................300 ± 25 kgf-cm

(260 ± 20 in-lb)

−#5 −

1-3 Wiring diagram and wiring work for America, Canada

Fig. 6

Plug in Terminal

Stator Ass’y

Carbon Brush

Armature Ass’y

Reversing Switch

Speed Control Switch

(Pay attention to

the direction)

white

Red

gray

yellow

Reversing

switch

terminal

Marking: No.4,5,6

Carbon Brush

Wiring WorkWiring Diagram

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