SERVICE MANUAL & I.C.A. FOR THE 7000 AMPHIBIOUS FLOATS
Revision G Page 48 of 102 P/N 1004646 Doc. No. W7001-24-01
4.2 MAIN GEAR
ASSEMBLY SETUP
AND ADJUSTMENT
Put aircraft on jacks to allow free extension and
retraction of the landing gear. Use safe
operating practices when working around
moving hydraulic components. The actuators
operate at high pressures and generate high
forces when repositioning the landing gear.
Adjusting the Gear Down position:
(See figure 4-4A and 4-4B)
1.
Bleed pressure off the hydraulic lines by
moving emergency gear position selector
both directions to Up and Down. This will
relieve pressure in the lines allowing
hydraulic lines to be unhooked without
spilling fluid that is under pressure, Item 1.
Leave emergency gear position selector in
Up position to allow actuator movement.
2.
Remove the AN12 bolt at the top of the oleo
shock strut attaching it to the top arm
assembly, Item 1. This will allow the
retraction mechanism to be repositioned by
hand without having to move the weight of
the tires, oleo and drag link assembly. Place
a rag between the drag link and the bulkhead
as the gear will rotate and make contact with
bulkhead, possibly scratching the finish.
3.
Remove the 4 nuts connecting the rod
linkages (Item 3) to the actuator arms (Item
5). Remove the rod linkages from the arms.
(Note: There are qty 2 NAS1149F0463P
washers between the rod end and the
actuator arm.)
4.
Remove the spring attached to the actuator
arm.
NOTE: Steps 5 through 16 are for re-rigging the
actuator. If no changes are done to actuator,
skip to step 17.
5.
Loosen the AN4 bolt and nut holding the
actuator arms (Item 5) to the actuator shaft.
Remove the two arms from the shaft being
careful not to lose the parallel keys. It is not
necessary to remove the visual gear position
indicator assembly from the outboard actuator
arm. .
6.
Remove the qty 4, 5/16-18 bolts, that hold
the actuator into the channel that runs across
the top of the wheel well.
7.
Allow the actuator to drop down from
channel and remove the up and down
hydraulic lines