O-Ring Boss Hydraulic Fittings Non-Adjustable - MacDon R1 Series Operator's Manual

Table 7.7 O-Ring Boss (ORB) Hydraulic Fittings – Adjustable and Non-Adjustable
SAE Dash Size
-2
-3
-4
-5
-6
-8
-10
-12
-14
-16
-20
-24
-32
7.1.5 O-Ring Boss Hydraulic Fittings – Non-Adjustable
The standard torque values for non-adjustable hydraulic fittings are provided. 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.
1. Inspect O-ring (A) and seat (B) for dirt or defects.
2. Ensure 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
336.
6. Verify the final condition of the fitting.
Table 7.8 O-Ring Boss (ORB) Hydraulic Fittings – Adjustable and Non-Adjustable
SAE Dash Size
-2
-3
-4
-5
15. Torque values shown are based on lubricated connections as in reassembly.
262634
REFERENCE
Thread Size (in.)
5/16 24
3/8 24
7/16 20
1/2 20
9/16 18
3/4 16
7/8 14
1 1/16 12
1 3/16 12
1 5/16 12
1 5/8 12
1 7/8 12
2 1/2 12
7.8, page
Thread Size (in.)
5/16 24
3/8 24
7/16 20
1/2 20
336
Torque Value
Nm
10 11
18 20
29 32
32 35
40 44
70 77
115 127
183 201
237 261
271 298
339 373
414 455
509 560
C
Figure 7.9: Hydraulic Fitting
Torque Value
Nm
10 11
18 20
29 32
32 35
15
lbf·ft (*lbf·in)
*89 97
*159 177
21 24
24 26
30 32
52 57
85 94
135 148
175 193
200 220
250 275
305 336
375 413
A
B
15
lbf·ft (*lbf·in)
*89 97
*159 177
21 24
24 26
Revision A