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153
Revision A
6.3.4
O-Ring Boss Hydraulic Fittings
–
Non-Adjustable
The standard torque values are provided for non-adjustable hydraulic fittings. If a procedure specifies a different torque
value for the same type and size of fitting found in this topic, use the value specified in the procedure instead.
Torque values are shown in following table below.
$
%
&
Figure 6.8: Hydraulic Fitting
1.
Inspect O-ring (A) and seat (B) for dirt or obvious defects.
2.
Check that O-ring (A) is
NOT
on the threads. Adjust O-
ring (A) if necessary.
3.
Apply hydraulic system oil to the O-ring.
4.
Install fitting (C) into the port until the fitting is hand-tight.
5.
Torque fitting (C) according to values in Table
6.
Check the final condition of the fitting.
Table 6.9 O-Ring Boss (ORB) Hydraulic Fittings
–
Non-Adjustable
SAE Dash Size
Thread Size (in.)
Torque Value
9
Nm
lbf·ft (*lbf·in)
-2
5/16
–
24
6
–
7
*53
–
62
-3
3/8
–
24
12
–
13
*106
–
115
-4
7/16
–
20
19
–
21
14
–
15
-5
1/2
–
20
21
–
33
15
–
24
-6
9/16
–
18
26
–
29
19
–
21
-8
3/4
–
16
46
–
50
34
–
37
-10
7/8
–
14
75
–
82
55
–
60
-12
1 1/16
–
12
120
–
132
88
–
97
-14
1 3/8
–
12
153
–
168
113
–
124
-16
1 5/16
–
12
176
–
193
130
–
142
-20
1 5/8
–
12
221
–
243
163
–
179
-24
1 7/8
–
12
270
–
298
199
–
220
-32
2 1/2
–
12
332
–
365
245
–
269
6.3.5
O-Ring Face Seal Hydraulic Fittings
The standard torque values are provided for O-ring face seal hydraulic fittings. If a procedure specifies a different torque
value for the same type and size of fitting found in this topic, use the value specified in the procedure instead.
Torque values are shown in following table below.
9.
Torque values shown are based on lubricated connections as in reassembly.
