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 239 of 590

TM 9-1240-401-34&P

Item No.

Item To Be Inspected

Procedures

6

CORRECTION COUNTER

Check light sources. Check that light is present and even throughout

the correction counter. Check that correction counter numbers are

clear and legible and that total excursion registers a minimum of 50 mils

at each stop.

7

ELEVATION COUNTER

Check light sources. Check that light is present and even throughout

the elevation counter. Check that elevation counter numbers are clear

and legible and register at least 1383 at maximum elevation and not

more than 9772 at maximum depression.

8

CROSS LEVEL KNOB

Operate cross-level knob. Check that operation is smooth without

binding or rough motion and that no more than 8 pound-inches

(0.904 N-m) of torque is required to rotate it.

Change 1

5.1-5