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
21
, and remove
the Handle Cover
22
.
(2) Remove the Carbon Brush:
With a small minus-head screwdriver, lift up on the Brush
Holder
24
, and pull it out slightly. Next, pull out the
terminal portion which connects the Carbon Brush
25
and
the lead wire from the Reversing Switch Ass’y
27
. 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
28
which retain
the Cord Clip
29
, and remove the Cord
30
together with
the Cord Armor
31
.
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
18
. Then, remove the Inner Cover Ass’y
11
and the
connected Armature Ass’y
14
from the Housing.
Terminal
Intermal Wire
Brush Holder
24
Carbon Brush
25
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
11
with a tubular
jig, and push down on
the tip of the pinion
gear on the Armature
Ass’y
14
.
(3) Remove the Stator Ass’y
from the Housing:
First, remove the Fan
Guide
15
from the inside
of the Housing.
Then, loosen the M4 x 40 +-Hd. Tapping Screws
16
, and
lightly tap the end surface of the Housing with a wooden
hammer to loosen and remove the Stator Ass’y
17
.
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
11
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
10
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
25
, 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
z#
Gear Cover Inside..................HITACHI MOTOR GREASE
No. 29 (0.033 Lbs)
z#
Armature Pinion and..............HITACHI MOTOR GREASE
Gear No. 29
(2) Adhesive
z#
Bearing Cap...........................Biska 18-M
C. Tightening Torque for Fastening Screws:
z#
M4 Tapping Screw.................15 - 25 kgf-cm
(13.0 - 21.7 in-lb)
z#
Bearing Cap...........................100 - 150 kgf-cm
(86.8 - 130 in-lb)
z#
Screw for Terminal.................2.5 - 4.5kgf-cm
(2.2 - 3.9 in-lb)
z#
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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