O-Ring Boss Hydraulic Fittings - Non-Adjustable; O-Ring Face Seal Hydraulic Fittings - MacDon D65 Operator's Manual

8.2.6 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
277.
6. Verify the final condition of the fitting.
Table 8.13 O-Ring Boss (ORB) Hydraulic Fittings – Non-Adjustable
SAE Dash Size
-2
-3
-4
-5
-6
-8
-10
-12
-14
-16
-20
-24
-32

8.2.7 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, refer to the value specified in the procedure instead.
Torque values are shown in the Table
59. Torque values shown are based on lubricated connections as in reassembly.
214327
REFERENCE
8.13, page
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 3/8–12
1 5/16–12
1 5/8–12
1 7/8–12
2 1/2–12
8.14, page 278.
277
C
Figure 8.13: Hydraulic Fitting
Torque Value
Nm
6–7
12–13
19–21
21–33
26–29
46–50
75–82
120–132
153–168
176–193
221–243
270–298
332–365
A
B
59
lbf·ft (*lbf·in)
*53–62
*106–115
14–15
15–24
19–21
34–37
55–60
88–97
113–124
130–142
163–179
199–220
245–269
Revision B