TM-9-2320-272-24-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4
JUNE 1998
TM-9-2320-272-24-3 - Page 682 of 799
4-203. TURNTABLE
TM 9-2320-272-24-3
THIS TASK COVERS:
a. Removal
b. Disassembly
c. Cleaning, Inspection, and Repair
d. Assembly
e. Installation
INITIAL SETUP:
APPLICABLE MODELS
M936/A1/A2
Tools
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 145)
Lifting device
Chains
MATERIALS/PARTS
Eighteen locknuts (Appendix D, Item 316)
Drycleaning solvent (Appendix C, Item 71)
REFERENCES (TM)
LO 9-2320-272-12
TM 9-2320-272-10
TM 9-2320-272-24P
TM 9-237
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-272-10).
Hydraulic oil reservoir removed (para. 4-188).
Boom elevating cylinders removed (para. 4-1931.
Hydraulic swivel valve removed (para. 4-198).
Crane swinger gearcase removed (para. 4-200).
Gondola removed (para. 4-202).
GENERAL SAFETY INSTRUCTIONS
All personnel must stand clear during lifting
operations.
Keep fire extinguisher nearby when using
drycleaning solvent.
Drycleaning solvent is flammable and toxic. Do
not use near an open flame.
WARNING
All personnel must stand clear during lifting operations. A
snapped cable, or shifting or swinging load, may cause injury to
personnel.
1.
Remove eighteen locknuts (3), screws (5), two turntable side plates (1), and crossover tubes (2) from
turntable base plate (4). Discard locknuts (3).
2.
Remove eighteen screws (6) from turntable gear and bearing (7) and crane body (8) by rotating
turntable base plate (4) so access hole exposes each screw (6).
NOTE
Assistant will help with steps 3 and 4.
3.
Attach two utility chains to turntable base plate (4).
4.
Attach lifting device to chains and lift turntable base plate (4) away from crane body (8).
5.
Remove two utility chains and lifting device from turntable base plate (4).
Remove eighteen screws (9) and turntable gear and bearing assembly (7) from underside of turntable
base plate (4).
4-946
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