TM 55-1520-240-23-3
4-38.1
ADJUSTABLE AFT ENGINE MOUNT LINK ADJUSTMENT
(Continued)
4-38.1
NOTE
Adjustment procedure is the same
for the left and the right adjustable
engine mount link. The right mount
link is shown here.
1.
Use the two 0.50 inch bolts (1) from the
applicable engine mount adjustable link (2) to
locate engine mount link (2) between fixture
adapters (3). Back off jamnuts (6) to allow
rotation of link center body (5). Ensure that as
correct length adjustment is reached, bearings
on each end of link are in contact with their
respective fixture adapters (3). Ensure that
bearings do not ride up the shanks of the bolts
(1).
If a 0.063 inch drill bit enters the
turn buckle cavity when inserted in
the inspection holes, the maximum
allowable link length will have been
exceeded. Do not adjust link past
this point. Damage to helicopter can
occur.
NOTE
Ensure that engine mount link
center-body does not turn during
tightening.
2.
Align keys in two lockwashers (4) with slots in
engine mount link center body (5). Tighten two
jamnuts (6).
3.
Remove engine mount adjustable link from
helicopter.
4-204
