TM-5-3895-372-34
CONCRETE-MOBILE MIXER BODY M919, MODEL 8CM-24/F
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
SEPTEMBER 1980
TM-5-3895-372-34 - Page 23 of 120
TM 5-3895-372-34
Table 2-2.
Troubleshooting Procedures (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16.
WINCH OPERATION SLOW OR ERRATIC:
Step 1.
Check brushes in motor for excessive wear.
Replace as necessary (para 4-8 and 4-9).
Step 2.
Check bushings in motor for wear.
Replace as necessary (para 4-8 and 4-9).
17.
WINCH FAILS TO HOLD:
Step 1.
Check brake disk for excessive wear.
Replace as necessary (para 4-8 and 4-9).
18.
ANGLE DRIVE GEAR BOX OVERHEATS:
Step 1.
Check for clogged oil passages.
Make sure all oil passages are clear and permit free flow of lubricant (para 6-3).
Step 2.
Check shaft end play.
Shim bearings to obtain recommended fit (para 6-8).
19.
ANGLE DRIVE GEAR BOX VIBRATES, IS NOISY:
Step 1.
Check loose foundation bolts.
Tighten loose bolts.
Replace missing lockwashers.
Step 2.
Check for excessive shaft end play.
Replace worn bearings or gears.
Shim bearings to obtain recommended fit
(para 6-8).
Step 3.
Check bearing wear.
Wear will cause dullness of balls, rollers, and raceways.
Replace worn bearings.
Clean and flush with reducer, install clean oil (para 6-8).
Step 4.
Check for broken parts, or loose bolts, nuts, and screws.
Be sure lockwire is not broken.
Tighten loose bolts, nuts, or screws.
Replace broken parts (para 6-4 thru 6-8).
2-10
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