SERVICE MANUAL & I.C.A. FOR THE 7000 AMPHIBIOUS FLOATS
Revision G Page 51 of 102 P/N 1004646 Doc. No. W7001-24-01
27.
Preload the rod linkages by shortening each rod
by 1/2 turn after the contact faces touch on the
Top Arm and Top Mount. Tighten the Rod
Linkage jamb nuts.
28.
Check the operation of the over center down
lock. As the actuator rotates causing the contact
faces to touch, the actuator arm should continue
to rotate and “snap” past Top Dead Center
(TDC). Make sure that there is preload on the
linkage rods so that contact faces remain touching
past TDC. Push and pull on the Top Arm
Assembly (Item 2) to ensure it is locked over
center. The Top Arm Assembly needs to be
contacting the Top Mount (Item 7) when the gear
is extended to properly transfer the landing loads.
Ensure Top Arm and Top Mount are making
contact by sliding a 3-inch wide piece of paper in
(See Figure 4-4B and photo on this page), then
moving gear to down and locked position. If
paper is tight, gear is rigged correctly. If paper is
able to slide out, then the Top Arm and Top
Mount are not making proper contact and need
further adjustment.
29.
Reattach spring.
30.
Loosen the (Fig 4-6, Item 1) jam nut on the
Main Gear Down Stop Assembly, and screw in
the NAS-428 adjustment bolt (Fig 4-6, Item 2).
Verify the bolt does not touch the Top Arm
when gear is in the down position. When the
aircraft is off the jack stands and the weight of
the aircraft fully on the wheels, adjust the NAS-
428 bolt to lightly make contact with the Main
Gear Top Arm when the gear is in the full down
position, then turn the bolt one and a half turns
in so that the bolt no longer makes contact with
the Top Arm. Gap should be about 0.050
inches. Tighten the jam nut.
