TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 521 of 1313
EXCESSIVE PROPELLER AND DRIVE SHAFTS NOISE OR VIBRATION - Continued
STEP
1.
ARE UNIVERSAL JOINTS PROPERLY LUBRICATED?
Visually check universal joints for proper lubrication.
T0523DAA
Figure 1.
Universal Joints.
CONDITION/INDICATION
ARE UNIVERSAL JOINTS PROPERLY LUBRICATED?
DECISION
YES - Go to Step (2).
NO - Lubricate universal joints (Volume 5, WP
0820). Go to Step (4) to verify problem is solved.
STEP
2.
ARE ALL PROPELLER SHAFT COMPONENTS IN GOOD OPERATING CONDITION?
a.
Check torque of all propeller shaft flange yoke screws.
b.
Tighten any loose propeller shaft flange yoke screws to 32-40 ft-lb (43-54 N·m).
TM 9-2320-272-23-1
0044
0044-2
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