O-Ring Boss (Orb) Hydraulic Fittings (Non-Adjustable) - MacDon R85 Operator's Manual

7.2.6 O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable)

1. Inspect O-ring (A) and seat (B) for dirt or
obvious defects.
2. Check that O-ring (A) is NOT on the threads and adjust
if necessary.
3. Apply hydraulic system oil to the O-ring.
4. Install fitting (C) into port until fitting is hand tight.
5. Torque fitting (C) according to the values in
Table
7.12 O-Ring Boss (ORB) Hydraulic Fittings
(Non-Adjustable), page
6. Check the final condition of the fitting.
Table 7.12 O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable)
SAE Dash Size
-3
-4
-5
-6
-8
-10
-12
-14
-16
-20
-24
3. Torque values shown are based on lubricated connections as in reassembly.
169455
MAINTENANCE AND SERVICING
105.
Thread Size (in.)
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
Figure 7.13: Hydraulic Fitting
Torque Value
ft·lbf (*in·lbf)
*106–115
14–15
15–24
19–21
34–37
55–60
88–97
113–124
130–142
163–179
199–220
105
3
N·m
12–13
19–21
21–33
26–29
46–50
75–82
120–132
153–168
176–193
221–243
270–298
Revision F