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Hydraulic hose
The tightening torques for union joints and union adaptors with parallel pipe threads (G, PF) are
shown in the table below.
A union joint or adaptor will not become loose or leak as long as it is tightened by the specified
torque. If fluid leaks from the sealed portion, do not attempt to tighten the union joint or adaptor
forcibly. Examine whether any foreign matter or scratches are present on the seat surface.
Tightening a union joint or adaptor forcibly could damage the connection of the joints.
When tightening a union joint or adaptor, use a torque wrench where possible and firmly tighten it by
an appropriate torque.
Nominal diameter
Nominal diameter
of
the parallel pipe
threads
Tightening torque
N-m
kgf-cm
lb-in
5.5
1/4
24.50
250
221.28
8.9
3/8
49.03
500
564.91
12.0
1/2
58.84
600
677.89
15.0
3/4
117.68
1200
1,355.78
19.0
3/4
117.68
1200
1,355.78
25.0
1
137.30
1400
1,581.74
32.0
1-1/4
166.72
1700
1,920.69
38.0
1-1/2
205.94
2100
2,372.61
50.0
2
245.17
2500
2,824.54
Fittings with parallel threads (O-ring seal type)
The tightening torques for fittings with parallel threads (O-ring seal method) are shown in the table
below.
Tightening an adjustable joint forcibly with a spanner or other such tool to secure it to a set position
could damage the adjustable joint, its washers, and other parts. Be sure to tighten an adjustable joint
to the torque appropriate to its size.
Nominal diameter
of thread
Tightening torque
N-m
kgf-cm
lb-in.
1/4
34.32 - 49.03
350 - 500
309.79 - 442.55
3/8
68.65 - 78.45
700 - 800
619.57 - 708.08
1/2
98.07 - 117.68
1000 - 1200
885.10 - 1,062.12
3/4
147.10 - 176.52
1500 - 1800
1,327.65 - 1,593.18
1
245.17 - 274.59
2500 - 2800
2,212.75 - 2,478.28
1-1/4
294.20
3000
2,655.30
1-1/2
294.20
3000
2,655.30
2
392.27
4000
3,540.40
Mai
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ance
stan
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and
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Maintenance standards and maintenance
Page 3-7
Tightening torques
Содержание SP05
Страница 1: ...Bunker rake SP05 Service manual Serial No 10151 Vol 1...
Страница 4: ...Contents 2...
Страница 10: ...Safety Page 1 6 Safety labels and operation labels...
Страница 11: ...Waste disposal 2 2 Disposal Disposal Page 2 1...
Страница 84: ...Hydraulic system Page 5 46 Removal and installation of each section...
Страница 102: ...Electrical system Page 6 18 General inspection and repair...
Страница 118: ...Main body Page 7 16 Inspection and repair of each section...
Страница 134: ...Troubleshooting Page 9 8 Work machine and mower unit problems...
Страница 142: ...SP05 SM USZ 10A 00 S K...