Piper PA-24 Comanche, Service Manual

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PIPER COMANCHE SERVICE MANUAL
04/01/09 XIII - ACCESSORIES AND UTILITIES
3H15
SECTION XIII
ACCESSORIES AND UTILITIES
13-1.
Restraint System
A. Inspections.
1. Shoulder Harness:
(a) Inspect ends and attachment points for condition and security.
(b) Inspect harness web material for condition and wear over its entire length. Particularly
look for wear and fraying where harness web passes in and out of inertial reel. If
excessively worn, replace.
(c) Check inertia reel mechanism by pulling sharply on strap. Verify reel will lock in place
under sudden stress.
2. Lap Belt:
(a) Inspect ends and attachment points for condition and security.
(b) Inspect harness web material for condition and wear over its entire length. Particularly
look for wear and fraying where harness web passes in and out of adjustable buckle end.
If excessively worn, replace.
(c) Inspect shoulder harness keeper nylon bushing. If excessively worn or missing,
replacement of that half of the lap belt is required.
B. Inertial Reel Adjustment.
The inertial reel locking feature prevents the shoulder strap from extending and holds occupant in
place. For normal movement strap will extend and retract as required. If required, adust inertial reel
as follows:
1. Allow harness to wind up on reel as much as possible.
2. On end of reel, pry off plastic cover over spring. Make sure spring does not come out of plastic
cover. Set aside plastic cover.
3. Unwind the harness completely. Measure and mark the harness 24 inches from the reel center.
4. Wind harness onto reel until the 24-inch mark is reached. Hold reel and place cap with spring
over reel shaft end.
5. Align slot in shaft with spring tang. Wind spring 6 1/2 turns and snap plastic cover into holes
in reel end shaft.
6. Release harness and allow harness to wind up. Extend harness several times to check reel for
smooth operation.
7. Hold inertia reel with reel completely wound and inertia mechanism end up. Pry off plastic
cover over mechanism and set reel aside.
8. Install nut in plastic cover so that stud in cover is flush with nut surface. Position cover over
reel and snap cover into place. Extend harness several times to ensure reel operates smoothly.