HITACHI VH 650 User guide
MODEL VH 650
1. ASSEMBLY/DISASSEMBLY GUIDE:
As mentioned above, the Type VH-650 can be said to consist of four
major sections : the Output Section, the Valve Section, the Nail
Feeder Section, and the Magazine Section. The descriptions below
explain important points in the disassembly and assembly of these
sections. The circled numbers in the descriptions correspond to
the part numbers in the Parts Price List.
CAUTION: Assembly/disassembly should be performed only after
the hose is removed from the nailer and any compressed
air remaining in the nailer is completely discharged.
1-1. Output Section:
A. Piston Damper
27
, Packing (A) 29, etc.
Tools Required:
φ
z#
3 Roll Pin Remover
z#
5 mm Hexagonal Bar Spanner (for M6 bolt)
z#
4 mm Hexagonal Bar Spanner (for M5 bolt)
(1) Disassembly:
z#
By removing the φ 3 x 30 Roll Pin 25, taking out the
M5 x 30 Hexagon Socket Hd. Bolt
Magazine
81
, the four M6 x 20 Hexagon Socket Hd.
65
retaining the
−
−
1
Bolts 73, retaining the Tail Cover 36, the Piston
Damper
and Packing (A)
27
, Damper Ring 28, Cylinder Damper 26,
29
, can be removed. (see Fig. 9)
(Please note that the M6 x 20 Hexagon Socket Hd. Bolts
can be easily removed if the Nail Guide
23
Body
26
Cylinder Damper
27
Piston Damper
28
Damper Ring
29
Packing (A)
36
Tail Cover
13
92
is left open.)
43
Safety Plunger (B)
25
Roll Pin
Piston
55
Safety Lever
65
M5 x 30 Hex. Socket Bolt
83
81
Magazine
Cover
56
M5 Nut
2
Washer (2 pcs.)
73
M6 x 20
Hex. Socket Bolt
(4 pcs.)
57
58
Safety Guard
59
M5 x 10 Hex. Socket Bolt
Fig. 9 Piston damper, Packing (A)-di sassembl y/reassembly
(2) Assembly:
Assembly can be accomplished by following the disassembly
procedures in reverse. However, special attention should
be given to the following items:
Ensure that the Piston Ass’y 13 is positioned so its
z#
semicircular groove faces toward the Magazine
81
(see Fig. 10 below).
As Safety Plunger (B) 43, may drop out during dis-
z#
assembly, ensure it is properly assembled.
92
Nail Guide
M5 x 12 Hex. Socket Bolt (2 pcs.)
Ensure that the air vent on Packing (A) 21 is properly
z#
aligned with the air vent on the Tail Cover
Assembly can be more easily accomplished if the two
z#
M5 x 12 Hexagon Socket Hd. Bolts
36
.
57
which connect
− 2 −
the Tail Cover 36 and Magazine 81 are loosened.
Assemble the Body 23, Tail Cover 36, and
z#
81
Magazine
in the following sequence:
(a) Loosely assemble the Body
23
and Tail Cover
with the four M6 x 20 Hexagon Socket Hd. Bolts 73.
(b) After assembling the Safety Lever Ass’y
loosely assemble the Magazine
Cover
Hd. Bolts
36
with the two M5 x 12 Hexagon Socket
57
.
(c) Finally, assemble the Magazine
81
81
55
,
to the Tail
to the Body
with the M5 x 30 Hexagon Socket Hd. Bolt 65,
tightening it to rated torque.
(d) In the sequence of (b) (a) (c), ensure that all bolts
are securely tightened to rated torque.
Drive Bit
Piston
Piston Ass’y
Fig. 10 Semi-circle groove of piston ass’y
36
23
Semicircular Groove
B. Cylinder 18, Piston Ass’y 13, etc.:
Tools Required:
5 mm Hexagon Bar
z#
Spanner (for M6 bolt)
(1) Disassembly:
By removing the
z#
four M6 x 25
Hexagon Socket
Hd. Bolts
4
and taking off the
Exhaust Cover
Ass’y
Cylinder Plate
Packing (B)
the Cylinder
6
and
7
18
16
,
,
,
and the Piston
Ass’y
13
can be
removed. (see
7
Packing (B)
6
Exhaust Cover
4
M6 x 25
Hex. Socket
Bolt
13
Piston
18
Cylinder
16
Cylinder Plate
Fig. 11 Disassembly of Upper
Part of main body
Fig. 11)
− 3 −
If it is difficult to
z#
remove the Cylinder
Plate
16
, insert
two of the M6 x 25
Hexagon Socket Hd.
Bolts 4 part way
into the matching M6
holes on the Cylinder
Plate, and pull upwards while turning.
(see Fig. 12)
The Cylinder Spring
20
and other components which
constitute the Output
Section (see Fig. 13)
can then be removed.
Should it be difficult
z#
to remove the Cylinder
18
, first remove the
36
Tail Cover
, and
push the Cylinder
upwards and out from
below.
(2) Assembly:
Assembly can be accomplished by following the
disassembly procedures
in reverse. During
assembly, ensure that
the semicircular groove
on the Piston Ass’y
faces toward the Magazine
81
(as described above),
and that the air vent on
7
Packing (B)
is properly aligned with the air
vent on the Body
23
13
.
Fig. 12 Removal of
Cylinder plate
Cylinder
Cylinder spring
Cylinder guide
Body
23
4
M6 x 25
Cylinder plate
16
18
20
21
Hex. Socket Bolt
16
M6 threaded hole
16
Cylinder Plate
C. Head Cap Ass’y
Valve Rubber Ass’y
11
and
10
:
Tools Required:
4 mm Hexagon Bar Spanner (for M5 bolt)
z#
(1) Disassembly:
Remove the Exhaust Cover Ass’y (as described above).
z#
Fig. 13 Main body output
disassembly
− 4 −
Loading...