Use cleaning compound in well-ventilated area away from open flame. Cleaning
compound is harmful to skin and clothing and may give off harmful vapor.
Clean all parts with cleaning compound (item 12, WP 0152 00). Wipe off excess cleaning compound with
clean wiping rag (item 18, WP 0152 00).
REPAIR OR REPLACEMENT
Replace M172/M172A1 telescope and quadrant mount when damaged to the extent
that the M18/M18A1 fire control quadrant will not function properly.
Repair is by replacement of authorized parts that do not meet inspection criteria. Refer to WP 0127 00, WP