TM 55-1680-320-23 & P
TABLE 3-1. INTERMEDIATE PREVENTIVE MAINTENANCE CHECKS AND SERVICES (cont)
INTERVAL
ITEM
ITEM TO BE
No.
D W M A H
INSPECTED
PROCEDURES
21
*
Boom Position
Visually inspect for cracks, loose
Support Assembly
mounting hardware and corrosion. Check
for dents on the stanchion tube, upper and
lower support and switch cover. Check
aircraft position plate for legibility and
security of attachment. Inspect hook and
pendant spring for damage. Inspection
shall be in accordance with Task 2-28.
22
*
Height Adjuster
Visually inspect for nicks, cracks,
corrosion. Ensure smooth operation, free
of binding or sticking. Check plunger
locking device by placing plunger in
locked position and attempt to rotate
height adjuster.
23
*
Quick Disconnect
Check upper and lower quick disconnectors
for corrosion and cracks. Check locking
action of jaw when placed in the closed
position. Inspection shall be in accord-
ance with Tasks 2-34, 2-42.
3-19