TM 9-2320-273-20
Table 8-1. Propeller- Shafts Troubleshooting Procedures.
MALFUNCTION.
TEST OR INSPECTION.
CORRECTIVE ACTION.
1.
EXCESSIVE SHAFT NOISE OR VIBRATION:
Step 1.
Check torque of yoke bolts at universal joints.
Torque bolts to 300 Ib-ft (407 N•m).
Step 2.
Check torque of capscrews.
Torque capscrews to 100 Ib-ft (136 N•m).
Step 3.
Inspect propeller shafts and universal joints for evidence of damage or excessive wear.
Replace worn or damaged components (para 8-11).
Step 4.
Check universal joints for adequate lubrication.
Lubricate (para 8-11).
Step 5.
Check for proper shaft alinement, propeller shafts are properly phased when the cross
and bearing in the yokes at each end of shaft are in the same place.
Disassemble and aline as necessary (para 8-11).
NOTE
Look for arrow marks on the propeller
shaft and slip yoke. The arrows will
point toward each other. if marks are
not discernible, punch mark each mem-
ber insuring reassembly in the same
relative position.
Step 6.
Remove propeller shaft from vehicle. Check freedom of motion of splines by moving
shaft from fully retracted to fuIIy extended. If excessive force is required to retract or
extend shaft, or it does not reach full travel, separate shaft halves and inspect splines for
wear, damage, and lubrication.
Replace shaft assembly if required (para 8-11).
8-3
