DeVilbiss MG5-OLSTAT-3A - Manual (Page 15)

15
PROBLEM CAUSE CORRECTION
Loose belt.
Tight belt.
Loose pulley.
Pulley misalignment.
Loose belt.
There is no oil in the compressor.
It is normal for "some" pressure drop to
occur.
Incorrect oil, low oil.
Low voltage
Pressure switch set beyond factory set-
ting.
Belt too tight.
Compressor valves have excessive car-
bon deposits build-up; restricted check
valve.
Adjust tension per instructions. (See "Belt
Adjustment or Replacement" page 12)
Adjust tension. (See "Belt Adjustment" sec-
tion on page 12.)
Check for worn keyway or pulley bore. Also
check for bent motor shaft. Replace parts
if necessary.
Motor pulley and flywheel must be in line
within 1/32". (See "Pulley and Flywheel -
Alignment" section on page 12.)
Adjust belt tension. (See "Belt Replace-
ment" section on page 12.)
Add oil to top of fill hole in base.
If there is an excessive amount of pressure
drop when the accessory is used, adjust
the regulator.
NOTE
Adjust the regulated pressure
under flow conditions (while
the accessory is being used).
See oil recommendation on page 11.
Proper correct voltage. Consult local power
company or electrician.
Do not set switch beyond maximum for
which outfit was designed as noted on
nameplate.
Adjust for proper tension. (See page 12)
Clean or replace compressor valves or
check valves.
Excessive belt wear.
Squealing sound.
Pressure reading on the regu-
lated pressure gauge drops
when an accessory is used.
Motor overheating