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 328 of 590

TM 9-1240-401-34&P

Troubleshooting

Procedure

(Page)

7-8. DIRECT SUPPORT SYMPTOM INDEX

Bearing surfaces (shafts) do not seat correctly .

Bearings are worn and objectionable movement

Linkage assembly binds . . . . . . . . . . . . . . . . . .

is apparent

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7-9. DIRECT SUPPORT TROUBLESHOOTING

LOCATION

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. LINKAGE ASSEMBLY (1) BINDS.

observe visually.

Repair linkage assembly (ref. para

7-10).

2. CONNECTOR SHAFT (2) DOES NOT SEAT

CORRECTLY.

Observe visually.

a. Clean mounting surfaces with

cleaning compound (item 3, appx

B).

b. Remove burrs with abrasive cloth

(item 4, appx B) dipped in cleaning

compound (item 3, appx B).

3. BEARINGS (3) ARE WORN AND OBJECTIONABLE

MOVEMENT IS APPARENT.

Check by feel for movement laterally and

vertically.

Repair by replacement of worn bearings

(3) or shafts (2 and 4) (ref. para 7-10).

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