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SDIG
Feb ‘15
- 12 -
Trouble Shooting Guide (cont’d)
Condition:
Cause:
Suggested Correction:
D. Excessive Noise.
Loose Beltguard, Flywheel or Motor Pulley.
Loose Valve in the Cylinder Head.
If noisy only during start-up, check for loose
Belts.
Normal sound amplified through floor.
Improper level or grade of oil in Pump.
Carbon or other foreign material on Piston
head.
If the Pump is knocking, and cannot be
attributed to any of the above, the Bearings
in the Pump may be worn.
Tighten as required.
Inspect the Valves. Replace as necessary.
Tighten Belts until no slippage is apparent.
Mount Unit on Vibration Pads.
Use correct DV Systems oil, and check that
level is correct.
Clean top of Piston. Check Cylinder walls for
scoring.
Worn Main Bearings can usually be detected by
noticeable end play on the Flywheel. Replace
the Main Bearings.
E. Oil Passing Downstream
of Unit and Excessive
Carbon Build-up.
Ambient temperature is too high.
Little or no air circulation around and over
Unit.
High percentage of running time.
Obstructed Air Filter.
Too much oil in the Pump.
Using wrong type of compressor oil.
Worn Valves.
Worn Piston Rings.
Introduce cool air, better air flow, or move Unit
to cooler location.
Check the air circulation around the Unit.
Check for air leaks. If no air leaks are present,
the Compressor may be too small for the
application.
Clean or replace as necessary.
Reduce the amount of oil in the Pump.
Change to the factory recommended oil.
Check and repair as necessary.
Replace Piston Rings as necessary.
F. Appearance of Water in
the Air Lines and/or Oil
‘milky’ in Colour.
Tank is not being drained regularly.
Unit is not being used enough to burn off
any water in the Pump.
Drain the Tank on a daily basis.
If using the Unit very infrequently, run for 30
minutes when used to burn off water.
Also, after having let the Unit sit idle for several
hours, drain the water from the Pump until oil
draining is visible. This should be done weekly.
An oil/water mixture can cause premature
issues with the Pump. Check the oil regularly
and change more often than suggested in the
Maintenance Schedule.