WIPLINE MODEL 8000 SERVICE MANUAL
Page 22 of 62
1002554 • Rev H
the length of the slide tube shaft and locking ram in addition to using a grease gun for
the zerk on the main carriage. Grease should be pumped several times past the point at
which it comes out the front of the carriage so it can migrate all the way thru the system
to the locking hooks. Also, LPS 2 should be applied to the locking hooks while their top
cover is removed.
The main gear actuator cylinder is not adjustable. These are pre-set at the factory to
ensure that the main gear is locked at the end of each stroke and that correct indication
is given on the cockpit console. The up and down lock may be adjusted so the lock is
fully engaged by adjusting the set screws shown in figure 5.3. Loosen the jamb nut
adjust and tighten jamb nut.
The main gear proximity switches are located on each end of the gear stroke. The
forward switch is located on the forward side of the gear tunnel. It is accessible through
the top deck access cover. The aft proximity switch is located on the float bulkhead just
aft of the wheel well, accessible though the float top deck cover.
The main gear proximity switches are adjusted loosening the mounting screws and
positioning them as such that the light goes out when the lock hook is raised about 1/8
inch off its nested position and comes on again upon nesting.
5.2.4 BLEEDING HYDRAULIC SYSTEM AFTER SERVICE
The system automatically bleeds, provided sufficient oil is maintained in the reservoir.
To check the fluid level, fill the reservoir with hydraulic oil and cycle the gear. The fluid
level should be maintained in the upper one third (1/3) of the sight glass. If the reservoir
empties (i.e. fluid disappears in sight glass) stop the cycle by pulling the circuit breaker
on the control panel. Fill the reservoir again and complete the cycle. Continue this
procedure until the fluid level in the reservoir stabilizes (it will vary in level between up
and down positions). If the fluid level continues to decline during gear cycles, check for
external leaks.