TM 1-1520-238-23
6-496
6.119.
MAIN TRANSMISSION FLOAT DIVERTER VALVE REMOVAL/INSTALLATION
6.119.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.119.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
Aircraft mounted crane (item 69, App H)
Industrial faceshield (item 129, App H)
Mount fixture (item 135, App H) (p/o item 25, App H)
Chemical protective gloves (item 154, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
Materials/Parts:
Jackscrew (NAS1801-4-19 for removal) (2)
Packing (3)
Assembly fluid (item 30, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
6.101
Main transmission removed
WARNING
FLIGHT SAFETY PART
The main transmission is a flight safety
part. Failure to follow maintenance
instructions may result in serious
injury or death of crewmembers and/or
serious damage to the helicopter.
6.119.3. Removal
a. Position main transmission (1) on mount fix-
ture to access float diverter valve (2). Use
mount fixture and crane (para 1.97).
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