32-63 Float Installation
Refer to R66 Illustrated Parts Catalog (IPC) Figure 32-11 and 32-17.
WARNING
D679 Cylinder contents are under extreme pressure. Install
MT545-1 pin assembly in D757-1 valve assembly during
maintenance to prevent cylinder discharge.
A. Removal
NOTE
Floats are subject to damage during removal. Remove floats if
necessary for repairs.
1. Refer to Figure 32-5. Hinge right aft seat assembly forward. Install MT545-1 pin
assembly in D757-1 valve assembly.
2. Disconnect D674-12 hose assembly from T-fitting near float. Cap fittings to prevent
foreign object contamination.
3. Refer to Figure 32-7. Detach float cover hook and loop tape inboard of skid and
loosen lacing.
4. Remove hardware securing float to skid tube, and skid extension.
5. Use care when removing C944 retainer strips from girts, and when separating girts
from skid tube and skid extension. Repeat steps for opposite float.
B. Installation
1. Refer to Figure 32-7. Verify (outboard) bolt heads securing struts to skids are
covered with B270-1 sealant. Apply additional sealant as required.
2. Position deflated float over skid tube and skid extension. Align holes in C944 retainer
strips, float covers, float girts, and skid and install hardware. Special torque nuts per
Section 20-33.
3. Inflate float with filtered, oil-free, dry air to 3.0 psig at topping valves.
4. Remove caps and connect D674-12 hose assembly to T-fitting near float. Special
torque hose B-nut per Section 20-33, apply B270-22 protectant to exposed aluminum
surfaces on hose B-nut and T-fitting, and torque stripe per Figure 5-1. Repeat steps
for opposite float.
5. Pack floats per Section 32-63 Part C.
SEP 2012 R66 Maintenance Manual Chapter 32 Landing Gear Page 32.19
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