O-Ring Boss Hydraulic Fittings - Adjustable - MacDon D1 Series Unloading And Assembly Instructions

12.2.4 O-Ring Boss Hydraulic Fittings – Adjustable
1. Inspect O-ring (A) and seat (B) for dirt or obvious defects.
2. Back off lock nut (C) as far as possible. Ensure that
washer (D) is loose and is pushed toward lock nut (C) as far
as possible.
3. Check that O-ring (A) is NOT on threads and adjust if
necessary.
4. Apply hydraulic system oil to O-ring (A).
5. Install fitting (B) into port until backup washer (D) and
O-ring (A) contact part face (E).
6. Position angle fittings by unscrewing no more than
one turn.
7. Turn lock nut (C) down to washer (D) and tighten to torque
shown. Use two wrenches, one on fitting (B) and other on
lock nut (C).
8. Check final condition of fitting.
215184
REFERENCE
B
Figure 12.14: Hydraulic Fitting
A
B
Figure 12.15: Hydraulic Fitting
510
C
D
A
D
C
E
Revision A