TM 9-2320-209-34-2-3 FRAME 4 1. 2. 3. 4. 5. NOTE Readings must be within limits given in table 18-3. If readings are not within given limits, throw away part and get a new one. Check that gearcase (1) and gearcase cover (2) have no cracks, nicks, burrs or damaged threads. Take off raised metal with a fine mill file, retap damaged threads, and weld cracks. Refer to TM 9-237. If more repair is needed, get a new part. Check that drive worm (3) is not nicked, scored or damaged. If drive worm is damaged, get a new one. Check that drive worm front and rear ball bearings (4) have no chips, rough- ness or flat spots. If ball bearings are damaged, get new ones. Put a coat of engine lubricating oil on ball bearings to keep out dust and dirt. Check that bearing cap (5) and its gasket surface are not cracked, nicked or burred. Take off raised metal with a fine mill file. If more repair is needed, get a new part. Measure inside diameter of gearcase bushing type bearing (6) and gearcase cover bushing type bearing (7). GO TO FRAME 5 Table 18-3. Front Winch (Gearcase and Gearcase Cover Bearings) Wear Limits Index Number Item/Point of Measurement 6 Gearcase bushing type bearing inside diameter 7 Gearcase cover bushing type bearing inside diameter Size and Fit of New Parts (inches) 1.8770 to 1.8800 1.8770 to 1.8800 Wear Limit (inches) 1.8880 1.8880 18-18