Komatsu Utility Avance WB91R-2

Questions and Answers

A
Andrew BarnettSep 23, 2025
What causes abnormal noises during combustion in my Komatsu Utility Avance WB91R-2?
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  Kenneth CarterSep 23, 2025
  If you are experiencing abnormal noises during combustion or in the mechanical parts of your Komatsu Utility Compact Loader, it could be due to fuel with a low cetane rating, overheating, a damaged exhaust silencer, or excessive valve clearance. Change to fuel that complies with standards, address any temperature indicator defects, change the exhaust silencer, and adjust the valve clearance.
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Erin MooreAug 25, 2025
Why is the oil pressure warning light on in my Komatsu Utility Avance WB91R-2 Compact Loader even at high speed?
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  dgomezAug 25, 2025
  If your Komatsu Utility Compact Loader's oil pressure warning light stays on even when the engine is running at high speed, it might be due to a low oil level in the oil pan, a clogged oil filter, or using oil that's not suitable for the current season. You should top up the oil, change the filter, or switch to a more appropriate oil.
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Suzanne CastilloAug 25, 2025
Why is the pump on my Komatsu Utility Avance WB91R-2 Compact Loader making abnormal noises?
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  Jonathan TorresAug 26, 2025
  If the pump of your Komatsu Utility Compact Loader is making an unusual noise, check the oil tank to ensure it's full. The noise could also indicate a faulty pump or that the hydraulic oil isn't suited for the current temperature. If the oil level is sufficient, consider repairing or replacing the pump and changing the hydraulic oil.
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James HarrisAug 26, 2025
Why is steam coming out of the radiator breather pipe on my Komatsu Utility Avance WB91R-2?
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  vanessa29Aug 27, 2025
  If you notice steam coming from the radiator breather pipe of your Komatsu Utility Compact Loader, possible causes include a low fluid level or leak, a slack fan belt, mud or limestone buildup in the cooling system, damaged or closed radiator fins, a faulty thermostat, or a loose or broken radiator cap. You should top up the fluid and repair any leaks, check the belt tension, change the fluid and clean the cooling system, repair or clean the radiator fins, replace the thermostat, and tighten or replace the radiator cap.
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John JohnsonAug 27, 2025
Why alternator charge warning light does not turn off on Komatsu Utility Avance WB91R-2?
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  mdavisAug 27, 2025
  If your Komatsu Utility Compact Loader's alternator charge warning light doesn't turn off even when the engine is running and the speed increases, it could be due to a faulty alternator or faulty cables. Consider replacing the alternator or checking and repairing the cables.
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Tonya JohnstonSep 14, 2025
Why is the temperature indicator always on the right end of the scale on my Komatsu Utility Avance WB91R-2 Compact Loader?
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  Jonathan PerrySep 14, 2025
  If the temperature indicator on your Komatsu Utility Compact Loader is always on the right end of the scale, it indicates a faulty temperature indicator. Consider changing it.
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Richard HunterSep 12, 2025
Why doesn't the engine oil pressure warning light come on when the engine is stopped on my Komatsu Utility Avance WB91R-2 Compact Loader?
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  William CookeSep 12, 2025
  If the engine oil pressure warning light does not come on when the engine is stopped (ignition key in position « ») on your Komatsu Utility Compact Loader, it could be due to a faulty bulb or a faulty pressure sensor. Consider changing the bulb or the pressure sensor.
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Chad ElliottSep 13, 2025
Why is my Komatsu Utility Avance WB91R-2 Compact Loader lacking power?
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  Jamie AdamsSep 13, 2025
  If your Komatsu Utility Compact Loader is experiencing a lack of power, it could be due to low engine rpm causing stall speed or a defect similar to overheating. Check and set up the engine governor, and refer to the remedies for overheating.
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operezSep 5, 2025
Why is the pump delivery insufficient on my Komatsu Utility Avance WB91R-2 Compact Loader?
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  ndavisSep 5, 2025
  If the pump delivery is insufficient in your Komatsu Utility Compact Loader, it could be due to a low oil level, a clogged suction filter, or a faulty pump. Top up the oil, clean the filter, or change the pump.
D
Daniel HillSep 2, 2025
Why does the starter disengage before the engine starts on my Komatsu Utility Avance WB91R-2 Compact Loader?
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  Randall RollinsSep 2, 2025
  If the starter disengages before the engine starts on your Komatsu Utility Compact Loader, it could be due to faulty cables or insufficient battery charge. Check and repair the cables, and charge the battery.