TM 55-1520-240-T
7-4.4 SWIVEL LOCKS SYSTEM OPERATIONAL CHECK
INITIAL SETUP
Applicable Configurations:
A ll
Tools:
None
Materials:
None
Personnel Required
Medium Helicopter Repairer
Aircraft Electrician
References:
Equipment Condition:
T M 5 5 - 1 5 2 0 - 2 4 0 - 2 3:
Helicopter Jacked at Both
Aft Landing Gear
Both Aft Landing Gear
Positioned to Trail Aft
(Neutral Position)
Battery Connected
Electrical Power On
Hydraulic Power On
Visual Check of Swivel Locks System
Performed (Task 7-4.3)
General Safety Instructions:
Personnel working around aft
Ianding gear must be careful.
Sudden wheel movement to
swivel Iocked position can cause
T M 5 5 - 1 5 2 0 - 2 4 0 - 23
swivel lock mechanism.
90x54
7-144
Change 1
7-4.4
injury. Keep fingers clear of
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