TM 1-1520-238-23
6-101
6.18.
ENGINE NOSE GEARBOX OIL FILTER BOWL, STRAINER ELEMENT, AND DIFFERENTIAL
PRESSURE SWITCH (LOCKWIRED TYPE) REMOVAL/INSTALLATION
6.18.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.18.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
1 1/4 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 89, App H)
Industrial faceshield (item 129, App H)
0.000 - 0.125-inch dial indicator depth gage (item 145,
App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
0 - 300 inch-pound 3/8-inch drive click type torque
wrench (item 439, App H)
Materials/Parts:
Packing (2)
Assembly fluid (item 30, App F)
Brush (item 34, App F)
Sealing compound (item 175, App F)
Wire (item 226, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.123
Engine nose gearbox fairings and shrouds
removed
NOTE
This task is typical for either No. 1 or No.
2 engine nose gearbox oil filter bowl,
strainer element, and differential pres-
sure switch.
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