Press the locking bar back with the
left thumb, leaving enough space to side the loop
through adjuster plate slot
once the hook end of
the retarder spring has engaged on the locking bar.
Pull the nylon cord over the knurled
locking bar to disengage the cord from the retarder
Work the center of the webbing
retarder spring into the adjuster plate pull tab slot.
Ensure that shoulder harness webbing
is centered on adjuster plate locking bar and can be
adjusted, (fig. 11-7).
For seat belt webbing adjuster P/N
MS22004-1 NSN 1680-00-876-0971 use spring P/N
62B4407 NSN 1680-00- 975-2987
retarder spring, remove adjustment webbing from
adjuster plate. Spring can be
removal of seat belt from aircraft.
Hook one end of webbing retarder
spring around flat end of knurled locking bar. Work
other end of spring around opposite flat end of knurled
bar as shown in figure 11-8.
Insert center section of webbing
retarder spring into adjuster plate tab release, (fig 11-8).
Replace adjuster webbing in adjuster
plate. Ensure that webbing is centered on adjuster plate
knurled bar and
can be adjusted as desired.
Installation or replacement of snap
safety pin. Install or replace snap safety pin on
personnel restraint harness as follows:
Secure the snap (MS22042-1)
in a vise, and ensure that the snap guard Is not
contained within the jaws.
Drill a 3/32-inch diameter hole
through both sides of snap guard as shown in figure 11-
9. Remove all metal burrs and filings from the snap.
Figure 11-8. Seat belt webbing retarder spring installation