Stanley B 255/10/50 Instruction Manual page 25

8. POSSIBLE FAULTS AND RELATED PERMITTED REMEDIES
Request the assistance of a qualified electrician for operations on electric components (cables, motor, pressure
switch, electric panel, etc).
FAULT
Air leak from the valve of the
pressure switch.
Reduction of efficiency, frequent
start-up. Low pressure values.
The motor and/or the
compressor overheat irregularly.
After an attempt to start the
compressor, it stops due to
tripping of the thermal cutout
caused by forcing of the motor.
CAUSE
Check valve does not perform its
function correctly due to wear or
dirt on the seal.
Condensate drainage cock
open.
Rilsan hose not inserted
correctly in pressure switch.
Excessively high consumption.
Leaks from joints and/or pipes.
Clogging of the suction filter.
Slipping of the belt.
Insufficient ventilation.
Closing of air ducts.
Insufficient lubrication.
Start-up with head of the
compressor charged.
Low temperature.
Voltage too low.
Incorrect or insufficient
lubrication.
Inefficient electrovalve.
25
REMEDY
Unscrew the hex-shaped head
of the check valve, clean the
housing and the special rubber
disk (replace if worn). Re-
assembler and tighten carefully
(figures 21-22).
Close the condensate drainage
cock.
Insert the Rilsan hose correctly
inside the pressure switch.
Decrease the demand of
compressed air.
Change gaskets.
Clean/replace the suction filter
(figures 16-17-18).
Check belt tension (fig. 15).
Improve ambient conditions.
Check and if necessary clean
the air filter.
Top up or change oil.
Release the compressor head
by using the pressure switch
push button.
Improve ambient conditions.
Check that the mains voltage
matches that of the dataplate.
Eliminate any extensions.
Check level, top up and if
necessary change the oil.
Call the Service Center.
G
B