TM 55-1520-240-23-5
6-188
INSTALL COMBINING TRANSMISSION OIL COOLER
6-188
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Torque Wrench, 30 to 150 Inch-Pounds
Open End Wrench, 1-1/2 Inch
Materials:
Oil (E254)
Lockwire (E231)
Parts:
Packings
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
1.
Install two oil transfer tubes (1), with four
packings (2), in sump cover (3).
NOTE
Do not tilt cooler. Oil can spill.
2.
Install cooler (4) on two transfer tubes (1) and
nine studs (5). Press down firmly to seat cooler
on tubes.
3.
Install washers (6) and nuts (7) at six places
around inside of cooler (4). Install washers and
nuts at three places around outside of cooler.
Torque nuts to 70 inch-pounds.
4.
Install bolts (8), washers (9), and nuts (10) at
four places around outside of cooler (4). Torque
nuts to 70 inch-pounds.
6-622
