Global Machinery Company 50L - Manual (Page 12)

12
Troubleshooting
Problem Possible Cause Suggested Remedy
Motor will not
run, running
too slow or
becoming
excessively hot
Power fault or supply voltage too low Check the power supply. Do not use an extension cord with
an air compressor. Make sure that the compressor is plugged
directly into a 240V household power point and not an
extension cord or power board.
Faulty pressure switch Use authorised service centre to repair or replace the switch
Faulty motor Use authorised service centre to repair or replace the motor
Main compressor sticking/tight Use authorised service centre to repair or replace faulty parts
Main compressor
sticking/tight
Moving parts damaged by heat
due to insufficient lubrication Use authorised service centre to check crankshaft, bearings,
con rod, piston rings, etc and replace where necessary
Moving parts damaged or blocked
by foreign particle
Vibration or
abnormal noise
Loose part Use authorised service centre to check and repair if necessary
Foreign body in main compressor Use authorised service centre to check and clean if necessary
Piston connecting with the valve seat Use authorised service centre to increase size of gasket
Moving parts excessively worn Use authorised service centre to repair or replace
WARNINGS.
1. Never attempt to remove any part of the compressor
whilst the tank is under pressure.
2. Never attempt to remove any electrical component whilst
the compressor is connected to the power supply. Switch
off the power and remove the electrical plug.
3. Do not adjust the safety valve.
4. Do not use an electrical extension cable.
5. If the release valve under the pressure switch cover (2)
fails to operate when the On/Off lever (3) is set in the off
position, switch the power supply off and determine the
nature of the fault.
6. Ensure that the lubricating oil is clean and that the oil level
is maintained at the mid point of the red circle in the oil
level glass (16).
7. Take care when discharging air from the tank, i.e. from the
safety valve (8), the drain cock (10) or the air outlet (6).
Compressed air can be extremely dangerous.
Take care; make sure that the discharge air does not
cause dust, stones or any other foreign particles to be
blown through the air and that the air is discharged in
a safe manner.