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Screws for common use (reference for assembling):
Application
Hex. size
mm
Type of
head
Torque
Applied hammer
models
N·m
(ft·lbs)
Grease nipple 14 H 50 ~ 60
(37 ~ 44)
All models
Air plug 30 S 200 ~ 250
(148 ~ 184)
Air check valve 36 H 250 ~ 300
(184 ~ 221)
Back-head gas valve body
(steel plugged, old version)
32 H 200 ~ 250
(148 ~ 184)
Plug for back-head gas valve
(old version)
19 H 30 ~ 40
(22 ~ 30)
Mini-mess gas coupling
(back-head and accumulator)
14 H 50 ~ 60
(37 ~ 44)
Pressure control valve fixing nut 24 H 140 ~ 180
(103 ~ 133)
PRB170, 200, 250,
300, 400, 500,
700
Accumulator gas charging valve 8 S 40 ~ 60
(30 ~ 44)
Fixing cap for accumulator gas
charging valve (old version)
24 H 140 ~ 160
(103 ~ 118)
Plug for accumulator gas
charging port
10 S 80 ~ 100
(59 ~ 74)
19 H 40 ~ 60
(30 ~ 44)
Connecting adapters for hose,
Swivel nuts of hose
22 H 150 ~ 200
(111 ~ 148) PRB008, 010
27 H 200 ~ 250
(148 ~ 184)
PRB020, 030,
040(H), 050
36 H 300 ~ 350
(221 ~ 258) PRB060, 100, 150
41 H 500 ~ 550
(369 ~ 406) PRB170, 200, 250
50 H 600 ~ 650
(443 ~ 479) PRB300, 400
55 H 700 ~ 750
(520 ~ 550) PRB500, 700
Plugs for blocking oil line
of the cylinder
5, 6 S 20 ~ 30
(15 ~ 22)
8 S 80 ~ 100
(59 ~ 74)
10 S 120 ~ 140
(89 ~ 103)
12 S 40 ~ 60
(30 ~ 44) Thread size BSP 1/4
12 S 200 ~ 250
(148 ~ 184) Thread size BSP 3/4
14 S 250 ~ 300
(184 ~ 221)
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