Note position of flat (43) on worm shaft assembly (35) in relationship to housing
Rotate and remove worm shaft assembly (35) from housing assembly (3).
For maintenance of the fire control level (cross level vial) on the M18 quadrant, refer
to WP 0056 00.
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 a
clean wiping rag (item 18, WP 0152 00).
REPAIR OR REPLACEMENT
Inspect gears for missing teeth and stripped gears.
Inspect bearing surfaces for nicks and burrs.
Repair is by replacement of authorized parts that do not meet inspection criteria. Refer to WP 0111 00
and WP 0112 00.
The following steps are written and illustrated for the M17 quadrant but also apply
to the M18 quadrant.
1 fc 1 1 1
Apply a light coat of grease (item 15, WP 0152 00) to worm shaft assembly (1).