TM 1-1520-238-23
6-245
6.53.
MAIN TRANSMISSION UPPER COVER OIL JET REMOVAL/INSTALLATION
6.53.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.53.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, 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)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
Materials/Parts:
Bolt (NAS 464-9)
Packing (2 per oil jet)
Petrolatum (item 138, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
6.50
Left, left forward, or right aft upper cover oil
jet filter removed
WARNING
FLIGHT SAFETY PART
The main transmission is a flight safe-
ty part. Failure to follow maintenance
instructions may result in serious
injury or death of crewmembers
and/or serious damage to the
helicopter.
CAUTION
The main transmission right aft upper
cover oil jet is not interchangeable with
other upper cover oil jets. To prevent
damage to main transmission, do not in-
termix or swap oil jets.
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M04-3866-1
