TM 9-1240-400-34&P
5-6.
TROUBLESHOOTING PROCEDURES (CONT).
Table 5-2. DIRECT SUPPORT TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
MOUNTING SURFACES
1.
MOUNTING SURFACES (1) DO NOT SEAT Ml15 TELESCOPE CORRECTLY.
Observe visually.
Remove burrs and clean mounting surfaces. Refer to TM 9-254.
CROSS-LEVEL ASSEMBLY
2.
CROSS-LEVEL CONTROL (2) IS ERRATIC AND ROUGH DURING MOVEMENT.
a.
Check for worn worm shaft.
Replace worm shaft. Refer to page 5-29.
b.
Check for worn gears in gear sector.
Replace gear sector. Refer to page 5-40.
3.
CROSS-LEVEL CONTROL (2) EXCEEDS 1.0 MIL BACKLASH.
a.
Check for worn bearings.
Replace bearings. Refer to page 5-29.
5-6
