O-Ring Boss Hydraulic Fittings - Non-Adjustable - MacDon M1170 Unloading And Assembly Instructions

Table 6.7 O-Ring Boss (ORB) Hydraulic Fittings – Adjustable (continued)
SAE Dash Size
-4
-5
-6
-8
-10
-12
-14
-16
-20
-24
-32
6.5.4 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
142.
6. Verify the final condition of the fitting.
Table 6.8 O-Ring Boss (ORB) Hydraulic Fittings – Non-Adjustable
SAE Dash Size
-2
-3
-4
-5
-6
-8
6. Torque values shown are based on lubricated connections as in reassembly.
215981
REFERENCE
Thread Size (in.)
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
6.8, page
Thread Size (in.)
5/16–24
3/8–24
7/16–20
1/2–20
9/16–18
3/4–16
142
Torque Value
Nm
19–21
21–33
26–29
46–50
75–82
120–132
153–168
176–193
221–243
270–298
332–365
C
Figure 6.11: Hydraulic Fitting
Torque Value
Nm
6–7
12–13
19–21
21–33
26–29
46–50
6
lbf·ft (*lbf·in)
14–15
15–24
19–21
34–37
55–60
88–97
113–124
130–142
163–179
199–220
245–269
A
B
6
lbf·ft (*lbf·in)
*53–62
*106–115
14–15
15–24
19–21
34–37
Revision A