TM-5-3895-372-20

CONCRETE-MOBILE MIXER BODY M919, MODEL 8CM-24/F

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL

AUGUST 1980

TM-5-3895-372-20 - Page 370 of 694

TM 5-3895-372-20

Table 8-1.

Cement System Troubleshooting Procedures

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1.

HARD LUMPS OF CEMENT IN BIN:

NOTE

Lumps of hardened cement result from moisture in bin.

If this problem occurs remove

cement.

Clean and dry bin.

Find what caused the problem.

Follow the steps below.

They will tell you how to keep the problem from happening again.

Remember that bin

should be emptied if mixer is left standing for more than a few days.

Step 1.

Check for bent or warped cover.

Straighten cover and hammer out dents.

Cover must fit tightly on all sides.

Replace if necessary.

Step 2.

Check for broken or loose cover gasket.

Replace gasket (refer to para 8-10).

Step 3.

Check latch tensions.

Latches should hold cover tightly against gasket on all sides.

Refer problem to Direct Support Maintenance.

2.

CEMENT DELIVERY UNEVEN:

Step 1.

Check for proper aeration.

See table 11-1, Malfunction No.

2.

Step 2.

Check vibrators for proper operation.

See table 11-1, Malfunction No.

3.

8-6