TM 55-1520-240-23-3
3-48
INSTALL LOWER DRAG LINK
3-48
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Torque Wrench, 30-150 Inch-Pounds
Torque Wrench, 100-750 Inch-Pounds
Socket Wrench Handle, 3/4 Inch Drive
Socket, 2-1/8 Inch
Materials:
Grease (E190)
Parts:
Cotter Pins
Personnel Required:
CH-47 Helicopter Repairer (2)
References:
Task 3-66
TM 55-1520-240-23P
NOTE
Procedure is same for left and right
gear except for differences noted in
task.
1.
Have helper position lower drag link (1) in
trunnion (2).
2.
Lubricate trunnion pin (3) using grease (E190).
Install pin through trunnion (2) and link (1).
3.
Have helper lift and support link (1) at angle
required to install bolt (4). Install bolt through link
(1) and trunnion pin (3). Secure bolt with washer
(5) and nut (6). Torque nut to 100 inch-pounds.
4.
Install washer (7) and nut (8) on pin (3). Torque
nut to 300-420 inch-pounds. Install cotter pin
(9).
5.
Install swivel housing and spindle (10)
(Task 3-66).
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