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* Water in crankcase
High humidity
Worn seals
* Noisy operation
Worn bearings
Air mixed with water
Change oil more frequently
Change the oil seals
Change the bearings
Check inlet lines for restrictions
and/or proper sizing
* Rough / pulsating, operating with pressure drop
Inlet restriction
Unloader
Air mix in water
* High crankcase temperatures
Wrong grade of oil
Improper amount of
oil in crankcase
Check system for stoppages, air leaks,
correctly sized inlet plumbing to pump
Check unloader for proper operation
Check inlet lines for restrictions and or
proper sizing
Use recommended oil
Adjust oil to proper amount