Eaton Axle and Brake Service Manual. 2-Speed and Double ...

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MAINTENANCE / ADJUSTMENTPeriodicServiceCleaningProper cleaning requires completedisassembly.The differential carrier assembly may besteam cleaned only while mounted inhousing provided all openings are plugged.Wash steel parts with machined surfaces ina commercial solvent.Wash castings or other rough parts insolvent or clean in hot solution tanks usingmild alkali solutions, heating partsthoroughly before rinsing.WARNING: Gasoline is not anacceptable cleaning solvent becauseof its extreme combustibility. It isunsafe in the workshop environment.Rinse all parts thoroughly. Dry immediatelywith clean rags. Lightly oil parts and wrapin corrosion-resistant paper if not reusedimmediately. Store parts in a clean,dry place.Section 2InspectionAll axle components should be closelyinspected after cleaning to determinewhich require replacement. For moredetailed inspection guidelines and failureanalysis, see Spicer Failure AnalysisService Manual AXSM-0020In General:Inspect steel parts for notches, visible stepsor grooves. Look for scuffing, deformationor discoloration related to improperlubrication.Inspect gear teeth for signs of excessivewear, pitting or cracking along contactlines before reusing. Check tooth contactpattern.Inspect machined surfaces of cast ormalleable parts for cracks, scoring, andwear. Look for elongation of drilled holes,wear on machined surfaces and nicks orburrs in mating surfaces.Inspect fasteners for rounded heads, bends,cracks or damaged threads.The axle housing should be inspected forcracks or leaks, loose studs or crossthreadedholes.A CAUTION: Any damage which affectsthe alignment or structural integrity of thehousing requires housing replacement.Repair by welding or straightening shouldnot be attempted. This process can affectthe housing metallurgy and cause it to failcompletely when under load.Repair and ReplacementReplace lower-cost parts, such as thrustwashers, seals, etc., that protect the axlefrom premature wear and do not addgreatly to the cost of your rebuild.Replace heavily worn but unbroken parts,since the damage done, should they fail,would greatly exceed their replacement cost.Steel parts such as shafts or gears are notrepairable. If worn or damaged, they shouldbe replaced, along with mating parts asnecessary.Seals and washers should be routinelyreplaced. Fasteners with self-lockingpatches may be reused if secured withseveral drops of Loctite #277.Axle housing repairs are limited to removalof nicks or burrs on machined surfaces orreplacement of damaged studs.10
Drive AxleOverhaulREMOVAL / DISASSEMBLYDifferential Carrier Assembly Removal(Follow procedure in numerical sequence.)5. 2-Speed Axle Only - Disconnect shiftunit air lines or electrical wires.Remove shift units.NOTE: When shift unit or axle shaft isremoved, provide container to catch4. Remove axle shafts, stud nuts, lockwashers \ oil that escapes from reservoir.and taper dowels (if used). If necessary, \loosen dowels by holding a brass drift in6. Remove nuts, cap screws and washersthe center of the shaft head and striking itfastening carrier to axle housing. Removea sharp blow with a hammer.differential carrier assembly.WARNING: Do not strike the axleshaft flange with a hammer. Do notuse chisels or wedges to loosenshaft or dowels.WARNING: Do not lie under carrierwhile removing fasteners or afterfasteners are removed. Use transmissionjack to support and removedifferential carrier assembly.NOTE: If replacing carrier assembly as a unit, turn to Assembly Section 3, page 31, for instructions.Disassemble Differential CarrierNOTE: If gear set is to be reused, checktooth contact pattern and ring gearbacklash before disassembling differentialcarrier. Best results are obtained whenestablished wear patterns are maintained inused gearing. Omit this step if the gear setis to be replaced.1. Mount differential carrier assembly inrepair stand. Loosen but do not removepinion nut..Section 311
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Page 32: Fastener Torque SpecificationsEarly

Eaton Axle and Brake Service Manual. 2-Speed and Double ...

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