SERVICE MANUAL & ICA
WIPLINE 4000 FLOATS ON CESSNA A185E, A185F, AND 206 SERIES
Page 44
Revision G
P/N 1002552
7.1 DESCRIPTION
The nose gear consists of scotchply fiberglass beams that are attached at the bottom to castoring blocks. Inside
the block is a castoring pin that is set into the machined fork assembly. The castoring pin allows the nose wheel
to pivot in a complete circle. The geometry is such that no shimmy dampers are necessary. A spring-loaded cam
rides in a groove machined in the castoring pin. This groove has a flat surface on the back face with the result that
the cam provides retention of the pin in the block and self-centering of the wheel. A nylon thrust washer is on top
of the castoring pin.
7.2 SERVICE SCHEDULE
The nose gear pivot assembly should be cleaned and greased every 25 hours or more frequently whenever in
water for extended period of time.
The nose wheels contain grease nipples for the wheel bearings. They should be greased every 25 hours.
Nose tires are standard 4.10 x 4, 4 ply, inflated to 38 +/- 5 psi.
7.3 NOSE BOX TRACK WEAR
Due the wear over time the roller/slide block places on the track as the gear are retracted, the block needs to be
measured for the amount of wear. The tolerance for wear is .050 inches. If the wear is, or is less than the limit, it
can still be used. If the wear in the track is greater than .050 inches, the block must be replaced. This check is to
be done every 200 hours and is part of the maintenance checklist.
4000 Series Floats Gear Track P/N 6A07337 (-001 LT -002 RT)
