Home Information Gearboxes Troubleshooting Gearbox
Troubleshooting Gearbox Print E-mail
Troubleshooting
ProblemsCausesRemedy
Gear case becomes unusually hot1. OverloadDecrease load or use a larger model
2. Insufficient or excessive lubricating oilAdjust oil level so it aligns with mark on oil gauge
3. Contaminated oilFlush interior and resplace oil
4. Oil viscosity is improperChange oil with one having the proper viscosity
5. Bearing are improperly mountedReassemble and tighten properly (Consult dealer)
6. Shaft is connected improperlyAlign properly
7. Air vent port is closedRemove rubber plug from oil cap
8. Ambient temperature is too highInstall cooling fan or move to cooler area
Unusual or excessive noise1. Improper meshingAdjust properly (Consult dealer)
2. Bearings are damaged or wornReplace bearings (Consult dealer)
3. OverloadedDecrease load or use a larger model
4. Insufficient oilAdd oil so level aligns with oil gauge
5. Oil seal is not wet with oilLubricate
6. Improper installation or connectionTighten loose bolts and align correctly
7. Bearing are improperly mountedAdjust (Consult dealer)
8. Input rpm is too highReduce
9. Foreign particles are mixed in oilRemove foreign particles and replace oil after flushing interior. (Consult dealer)
Vibration is excessive1. Gear teeth are wornReplace wheel (Consult dealer)
2. Foreign particles are mixed in oilRemove foreign particles and replace oil after flushing interior. (Consult dealer)
3. Bearings are worn or damagedReplace bearings (Consult dealer)
4. Mounting bolts are looseTighten
5. Wheel is improperly alignedReplace wheel (Consult dealer)
Input/output shafts do not rotate at all1. Teeth seizureReplace worm and wheel (Consult dealer)
2. Bearings are worn or damagedReplace bearings (Consult dealer)
3. Foreign particles are mixed in oilRemove foreign particles and replace oil after flushing interior. (Consult dealer)
Input/output shafts rotates in idle condition and output shaft is not driven1. Wheel teeth is wornReplace wheel (Consult dealer)
2. Wheel boss or shaft key are damagedReplace wheel or key (Consult dealer)
3. Input shaft or worm teeth are damagedReplace shaft or worm (Consult dealer)
4. Input shaft is brokenReplace shaft (Consult dealer)
Teeth are worn1. OverloadReduced load
2. Contaminated oilReplace oil after flushing interior
3. Insufficient oilAdd oil
4. Oil viscosity is too lowReplace oil with one having the proper viscosity
5. Ambient temperature is too highInstall cooling fan or move to cooler area
6. Foreign particles are mixed in oilRemove foreign particles, clean interior and replace oil
7. Excessive rpmReducer rpm or use a different model
8. Backlash is improperReassemble and adjust
Main body has cracks or shaft is broken1. OverloadReduce load or use a larger model
2. Impact load is greater than rated load.Reduce impact load or use a larger model
3. Connection is improperAlign properly
4. Gear case has partial thickness or cavitiesReplace gear case (Consult dealer)
Oil leaks1. Oil seal is defectiveReplace oil seal
2. Cover mounting bolts are looseTighten bolts
3. Air does not escapeCheck oil cap
4. Input and output shafts are marredReplace shafts (Consult dealer)
5. Excessive oilAdjust oil level so it aligns with mark on oil gauge
6. Gear case has cavitiesReplace gear case (Consult dealer)
7. Gear case has fissuresReplace gear case (Consult dealer)
8. Other than normal installation directions (horizontal oblique, upside-down etc)Const dealer about installation
 
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