TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 768 of 1015
TM 9-2320-272-24-1
3-147. TRANSFER CASE FRONT AXLE LOCK-IN CONTROL VALVE REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
All
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
MATERIALS/PARTS
Antiseize tape (Appendix C, Item 72)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
l
Parking brake set (TM 9-2320-272-10).
l
Air reservoirs drained (TM 9-2320-272-10).
l
Front axle lock-in switch removed (para 3-101).
l
Fuel selector valve removed (if equipped)
(para. 3-24).
GENERAL SAFETY INSTRUCTIONS
Do not disconnect air lines before draining air
reservoirs.
WARNING
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
a. Removal
NOTE
Tag air lines for installation.
1.
Disconnect control line (8) from front axle control valve elbow (7).
2.
Disconnect manifold tee supply line (1) from adapter fitting (2).
3.
Remove two screws (4), instruction plate (5), and control valve (3) from instrument panel (6).
b. Installation
NOTE
If new control valve is being installed, use fitting from old valve.
Clean all male pipe threads and wrap with antiseize tape before
installation.
1.
Install control valve (3) and instruction plate (5) on instrument panel (6) with two screws (4).
2.
Connect manifold tee supply line (1) to adapter fitting (2).
3.
Connect control line (8) to front axle control valve elbow (7).
3-404
Back to Top
