8.1.3 O-Ring Boss (ORB) 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).
Figure 8.6: Hydraulic Fitting
5. Install
fi
tting (B) into port until back up washer (D) and
O-ring (A) contact part face (E).
6. Position angle
fi
ttings 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
fi
tting (B)
and other on lock nut (C).
8. Check
fi
nal condition of
fi
tting.
Figure 8.7: Hydraulic Fitting
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Revision A
Summary of Contents for M1240
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