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TIGHTENING TORQUE AND HYDRAULIC CONNECTIONS
TIGHTENING TORQUE AND HYDRAULIC CONNECTIONS
Hydraulic connections
Hydraulic connections
3)
3)
(1)
(1)
Tightening torque
Tightening torque
(2)
(2)
L : Left port
R : Right port
T : Tank
P : Pump
T L P R
(780-3A) 5-71
Screwed
connection
Max. tightening torque [ kgf
·
m (lbf
·
ft) ]
With cutting
edge
With copper
washer
With aluminum
washer
With O - ring
1/4 BSP.F
4.1 (29.7)
2.0 (14.5)
3.1 (22.4)
-
3/8 BSP.F
6.1 (44.1)
2.0 (14.5)
5.1 (36.9)
-
1/2 BSP.F
10.2 (73.8)
3.1 (22.4)
8.2 (59.3)
-
7/16-20 UNF
-
2.0 (14.5)
-
-
3/4-16 UNF
-
6.1 (44.1)
-
-
M 12
×
1.5
4.1 (29.7)
2.0 (14.5)
3.1 (22.4)
2.0 (14.5)
M 18
×
1.5
7.1 (51.4)
2.0 (14.5)
5.1 (36.9)
5.1 (36.9)
M 22
×
1.5
10.2 (73.8)
3.1 (22.4)
8.2 (59.3)
7.1 (51.4)
Summary of Contents for HL955
Page 557: ...7 6 MEMORANDUM MEMORANDUM ...