TM 1-1520-238-23
6-374
Change 4
6.86.
HEAT EXCHANGER INSTALLATION
6.86.1. Description
This task covers:
Installation.
6.86.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
1 1/8 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 90, App H)
1 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 93, App H)
7/8 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 100, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
0 - 600 inch-pound 3/8-inch drive dial indicator torque
wrench (item 447, App H)
Materials/Parts:
Packings (2)
Lubricating oil (item 118, App F) or
Lubricating oil (item 119, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
WARNING
FLIGHT SAFETY PART
The main transmission and heat exchangers are flight safety parts. Failure to follow
maintenance instructions may result in serious injury or death of crewmembers and/or serious
damage to the helicopter.
NOTE
Except as specified, this task is typical for either left or right heat exchangers.
GO TO NEXT PAGE
