MacDon M1170 - O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable)

214733 422 Revision A
8.1.4 O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable)
1004663
A
B
C
Figure 8.8: Hydraulic Fitting
1. Inspect O-ring (A) and seat (B) for dirt or obvious defects.
2. Check that O-ring (A) is NOT on threads and adjust if
necessary.
3. Apply hydraulic system oil to O-ring.
4. Install fitting (C) into port until fitting is hand-tight.
5. Torque fitting (C) according to values in Table 8.7, page
422.
6. Check final condition of fitting.
Table 8.7 O-Ring Boss (ORB) Hydraulic Fittings (Non-Adjustable)
SAE Dash Size
Thread Size (in.)
Torque Value
21
Nm lbf·ft (*lbf·in)
-2 5/16–24 6–7 *53–62
-3 3/8–24 12–13 *106–115
-4 7/16–20 19–21 14–15
-5 1/2–20 21–33 15–24
-6 9/16–18 26–29 19–21
-8 3/4–16 46–50 34–37
-10 7/8–14 75–82 55–60
-12 1-1/16–12 120–132 88–97
-14 1-3/8–12 153–168 113–124
-16 1-5/16–12 176–193 130–142
-20 1-5/8–12 221–243 163–179
-24 1-7/8–12 270–298 199–220
-32 2-1/2–12 332–365 245–269
REFERENCE
21. Torque values shown are based on lubricated connections as in reassembly.