TROUBLESHOOTING PROCEDURES OPTICAL INSTRUMENT SUPPORT

TM 9-1240-375-34&P

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DIRECT SUPPORT

M171/M171A1 TELESCOPE AND QUADRANT MOUNT

(1240-01-039-7273/1240-01-515-8265)

TROUBLESHOOTING PROCEDURES

OPTICAL INSTRUMENT SUPPORT

INITIAL SETUP:

Materials/Parts

Abrasive cloth (item 9, WP 0152 00)

Cleaning compound (item 12, WP 0152 00)

Wiping rag (item 18, WP 0152 00)

References

WP 0060 00

OPTICAL INSTRUMENT SUPPORT

Table 1. Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

WARNING

RADIATION

TRITIUM

GAS (H3)

When maintaining radioactively illuminated fire control equipment, follow radiation

hazard procedures in warning summary.

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