Hitachi G10SR Service Manual download

Manual type:Service Manual
Pages:5
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Page 1 of 5
MODELS
G 10SR/G 12SR
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1
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1. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY
The
[Bold]
numbers in the descriptions below correspond to the numbers in the Parts Lists and exploded
assembly diagrams for G 10SR and G 12SR.
1-1. Disassembly of the Armature
(1) Loosen the M5 x 20 Machine Screw
[26]
and remove Wheel Guard (A) Ass’y
[28]
.
(2) Remove the Brush Caps
[41]
, and take out the Carbon Brushes
[42]
.
(3) Loosen the D5 x 25 Tapping Screws
[1]
, and remove the Gear Cover Ass’y
[4]
. Separate the Inner
Cover
[9]
from the Housing Ass’y
[37]
with a slotted-head screwdriver, and remove the Inner Cover
[9]
together with the Armature
[10]
.
(4) Holding the Armature
[10]
, loosen the M7 Special Nut
[5]
with a wrench, and remove the Pinion
[6]
.
(5) Support the Inner Cover
[9]
with a tubular jig (inner diameter 63 - 72 mm is recommended), and push
down on the armature shaft with a hand press to remove the Armature
[10]
. (see Fig. 4)
1-2. Disassembly of the Stator Ass’y
(1) After removing the Armature
[10]
, disconnect the
lead wires of the Stator Ass’y
[12]
from the Slide
Switch
[45]
. Then, remove the Brush Terminals
[13]
from the Brush Holders
[43]
.
(2) Loosen the D4 x 70 Hex. Hd. Tapping Screws
[11]
,
and remove the Stator Ass’y
[12]
.
Fig. 4
1-3. Disassembly of the Gear
(1) Loosen the M4 x 12 Seal Lock Screw
[23]
, and
remove the Packing Gland
[22]
together with the
Spindle
[25]
, and Gear
[17]
from the Gear Cover
Ass’y
[4]
in a single body.
(2) As illustrated in Fig. 5, support the angled surface of
the Gear
[17]
with a J-129 gear pullar (special repair
tool, Code No. 970905), rest the J-129 gear puller on
a J-130 sleeve (special repair tool, Code
No. 970907), and push down on the tip of the Spindle
[25]
with a hand press to remove the Gear
[17]
.
Fig. 5
Push down
[9]
Inner
Cover
Armature
shaft
Dia. 63 - 72 mm
[10]
Armature
Push
J-129 Gear puller
Sample
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