TM 1-1520-238-23
3-114
3.33.
TAIL LANDING GEAR ACTUATING CYLINDER SPRING REPLACEMENT (AVIM)
3.33.1. Description
This task covers:
Disassembly. Cleaning. Inspection. Assembly. Testing.
3.33.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
14-quart utility pail (item 222, App H)
Adjustable air filtering respirator (item 262, App H)
Hydraulic system components test stand (item 359,
App H)
12-inch strap pipe wrench (item 425, App H)
Spanner wrench (item 429, App H)
30 - 150 inch-pound 3/8-inch drive click type torque
wrench (item 441, App H)
Materials/Parts:
Packing (3)
Seal (2)
Wiper ring
Antiseize compound (item 27, App F)
Hydraulic fluid (item 93, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
3.33.3. Disassembly
a. Remove actuator assembly spring (1) from ac-
tuating cylinder (2).
(1) Remove packing nut (3) from cylinder (2).
Use spanner wrench. Hold cylinder (2) with
strap wrench.
(2) Remove and discard wiper ring (4) from ac-
tuator piston (5).
(3) Remove actuator lock bearing (6) from cylin-
der (2).
(4) Remove piston stop (7) from cylinder (2).
(5) Remove and discard spring (1) from cylinder
(2).
(6) Remove piston (5) from cylinder (2).
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