SERVICE MANUAL & ICA
8750 AMPHIBIAN/SEAPLANE FLOATS ON CESSNA 208/208B
Revision C
Page 57 of 104
P/N 1005723 Doc. No. W8750-24-01
4.2 MAIN GEAR ASSEMBLY SETUP
AND ADJUSTMENT (CONT.)
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
