OIL LUBRICATED

WHEEL BEARING SEAL AND BEARING CAP DIAGNOSTIC CHART

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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WHEELS, RIMS AND TIRES OIL LUBRICATED Special attention must be given to the type of lubricant used on front and rear axle wheel bearings, since different type of lubricants will be used. Front Axles 1. Prelubricate bearings by applying a light coating of recommended lube to bearings. 2. To be assured that the grease cap is uniformly seated, tighten cap bolts alternately in a crisscross pattern to 16-20 N•m (12-15 ft. lbs.). 3. After grease cap has been installed and bearings adjusted, oil level is to be from oil level line to 9.525 mm (3/8") above line. IMPORTANT Apply sealant to threaded type plug. Insure that rubber plug is seated. Wipe excess lubricant from bearing cap which could appear as a leaking cap after vehicle operation. 4. A light coating of grease may be applied to bearing cone and matching surface of cup to promote cone to cup adhesion to facilitate assembly. Rear Drive Axles 1. Prelubricate bearings by applying a light coating of recommended lube to bearings. 2. Fill wheel or hub cavity with differential lubricant to level of largest bearing cup. 3. Apply a very light coat of lube to lip of oil seal with exposed lip. 4. Check differential for proper lubricant level. IMPORTANT To assure good sealing when Installing axle shaft (Fig. 34), observe the following precautions. 1. Both mating surfaces must be free of nicks or burrs. 2. Both mating surfaces must be clean and dry before Installing either an acetate gasket or Loctite Gasket Eliminator. 3. When Installing axle shafts, tighten flange mounting nuts evenly to specified torque. 4. Wipe excess lubricant from axle flange since lube could appear as a leak after operation. Figure 34. Special Instructions for Rear Rear Axle or Tag Tandem Axles, Rear Axle Models RA 429, 430, 431, 432 and 437. To be sure that the grease cap is seated properly, tighten grease cap bolts alternately in a crisscross patter to 16-20 N•m (12-15 ft. lbs.). Fill tag axle wheel ends with gear lubricant. Axles with axle shaft ends used as hub caps, fill through hole provided until oil runs out when hole is positioned at 4 to 5 or 7 to 8 o'clock. Axles which have visual oil level hub caps, fill through provided hole to oil level line on hub cap. IMPORTANT Apply sealant to threaded type. Insure that rubber plug Is seated. Wipe excess lubricant from bearing cap which could appear as a leaking cap after operation. CTS-4148A Page 15

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