MARKING ON BASE CANNOT BE READ.

Page Title: MARKING ON BASE CANNOT BE READ.
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Chapter 3 Maintenance Instructions

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TM-9-1220-243-12-P Plotting Board Indirect Fire M16 W/E and Plotting Board Indirect Fire M19 W/E Manual

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MARKING ON DISK DOES NOT ALINE PROPERLY WITH BASE MARKING.

TROUBLESHOOTING

(Cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. MARKING ON BASE CANNOT BE READ.

Check base for illegible grid and marking.

Replace plotting board.

3. BASE MARKING DOES NOT ALINE PROPERLY WITH DISK MARKING.

C h e c k base for worn bushing.

Replace plotting board.

4. MARKING ON DISK CANNOT BE READ.

Check disk for illegible marking and seared. s u r f a c e

Replace disk as shown on page 3-5.

3-2