SERVICE MANUAL & I.C.A. FOR THE 7000 AMPHIBIOUS FLOATS
Revision D Page 38 of 102 P/N 1004646 Doc. No. W7001-24-01
4.0 GENERAL
The main landing gear incorporated within the
amphibious floats are retractable, quadricycle type
with four main wheels in a dual tire formation. Air-
oil shock struts on the two main landing gear
assemblies provide shock absorption.
The main landing gear has dual 6:00 x 6 8-ply tires.
All tires must be approved to TSO C62, type III. The
gear system is hydraulically actuated and driven by
two hydraulic pumps. Brakes are hydraulic and there
is a caliper on each main wheel.
BRAKE REMOVAL & INSPECTION
Each main wheel has a dedicated brake caliper. To
remove the brake caliper:
1. Remove two mounting bolts on each caliper 2,
Compress the caliper piston using a c-clamp
3. Slide caliper off of the brake disc
Brake pads should be replaced when the minimum
section thickness is less than 0.100”, see Figure 4-1.
Generally, the brake discs should be checked for wear,
grooves, deep scratches, and excessive pitting. Pitting
deeper than 0.015”
or thickness below 0.327” is cause
for replacement.
MAIN WHEEL AND TIRE REMOVAL
To remove each main wheel:
1.
Remove brake caliper
2.
Cut cotter pin and remove axle nut
3.
Pull wheel off of axle.
Each main wheel is a split-type rim. To remove the
tire:
1.
Remove air from tire
2.
Remove 3 bolts that hold wheel together
3.
Split rim and remove tire and tube
Main gear tires should be replaced when the tread is
worn through in any area. Reinstallation is the reverse
of removal for tires, wheels, and brakes.
0.100 IN.
(2.54 mm)
MINIMUM
0.100
IN.
(2.54
mm)
MINIMUM
FIGURE
4-1
MINIMUM
BRAKE
LINING
THICKNESS
0.100 IN.
(2.54 mm)
MINIMUM
PRESSURE
PLATE
BACK
PLATE
