MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 115)

MAINTENANCE AND SERVICING
Table 7.11 O-Ring Boss (ORB) Hydraulic Fittings (Adjustable)
Torque Value
2
Flats From Finger Tight (FFFT)
3
SAE No.
Thread
Size (in.)
Nut Size Across
Flats (in.) ft·lbf N·m Flats Turns
3 3/8 1/2 6 8 2 1/3
4 7/16 9/16 9 12 2 1/3
5 1/2 5/8 12 16 2 1/3
6 9/16 11/16 18 24 2 1/3
8 3/4 7/8 34 46 2 1/3
10 7/8 1 46 62 1-1/2 1/4
12 1-1/16 1-1/4 75 102 1 1/6
16 1-5/16 1-1/2 105 142 3/4 1/8
20 1-5/8 1-7/8 140 190 3/4 1/8
24 1-7/8 2-1/8 160 217 1/2 1/12
7.2.6 O-Ring Face Seal (ORFS) Hydraulic Fittings
1. Check components to ensure that the sealing surfaces
and fitting threads are free of burrs, nicks, and
scratches or any foreign material.
Figure 7.7
2. Torque values shown are based on lubricated connections as in reassembly.
3. Always default to the torque value for evaluation of adequate torque.
169457
107
Rev. F