MacDon M155 Unloading And Assembly Instructions page 295

5. Install fitting (B) into the port until backup washer (D) and
O-ring (A) contact part face (E).
6. Position the angle fittings by unscrewing no more than
one turn.
7. Turn lock nut (C) down to washer (D) and tighten it to the
torque value indicated in the table. Use two wrenches, one
on fitting (B) and the other on lock nut (C).
8. Verify the final condition of the fitting.
Table 8.11 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
9. Torque values shown are based on lubricated connections as in reassembly.
262320
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
279
D
A
B
Figure 8.12: Hydraulic Fitting
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
E
9
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
Revision A