TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 306 of 590
5. 1-24. M15
TM 9-1240-401-34&P
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Turn cross-level knob (1) counterclockwise to stop.
Turn lower section handwheel (2) on cross-leveling
fixture until bubble in cross-level fire control level (3)
is centered.
Read lower section scale wheel (4) at vernier zero
line. The angle must be no less than 300 mils.
Return test fixture adapter (5) to approximately level
position.
Turn cross-level knob (1) clockwise to stop.
Turn lower section handwheel (2) until bubble in
cross-level tire control level (3) is centered.
Read scale wheel angle at vernier zero graduation.
The indicated cant angle must be no less than 300
mils.
Return cross-leveling fixture to approximately zero in
cant and elevation.
5.1-72
Change 1
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