TM 55-1520-240-23-5
6-159
REPLACE AFT TRANSMISSION SIGHT GAGE
6-159
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Container, 14 Quart
Spanner Wrench
Torque Wrench, 30 to 150 Inch-Pounds
Materials:
Lockwire (E231)
Oil (E254)
Parts:
Packing
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Cargo Ramp Open and Level (Task 2-2)
Right Baffle Under Aft Transmission Open (Task 2-2)
REMOVE SIGHT GAGE
1.
Position container under sump drain valve (1).
2.
Push in drain valve (1), twist and pull. Drain oil
into container until oil level is below sight gage
(2).
3.
Close valve (1) by pushing it in and twisting it.
4.
Remove lockwire from sight gage (2). Remove
gage from transmission (3). Use spanner
wrench.
5.
Remove packing (4) from sight gage (2).
6-552
