Global Machinery Company 50L - Manual (Page 14)

14
Troubleshooting continued
Problem Possible Cause Suggested Remedy
Insufficient pressure or decreased
outlet capacity
Air line hose leaking Examine the air hose for any holes
and tears. If the hose is found to be
defective replace it.
Safety valve leaking Examine the condition of the
safety valve. If the valve is leaking
immediately shut off the compressor
and cease using it. Have the unit
serviced/checked by an authorised
service centre and repaired. Don’t
continue to use the unit with a
leaking safety valve.
Excessive oil consumption
Oil level too high Maintain the oil at the correct level
Hole in oil filling plug (14) blocked Check and clean
Piston ring and/or cylinder worn or
damaged
Use authorised service centre to check
and repair if necessary
Maintenance
1. After the first 10 hours of working, empty the crank case
of oil and refill with clean oil by removing the crank case
oil plug (left hand side of the crank case at the bottom)
Note. Use good quality compressor lubricating oil.
• SAE30 or L-DAB 100 over 10°C
• SAE10 or L-DAB 68 under 10°C
2. After each subsequent 500 hours of operation, again
drain the oil and refill the crank case with clean oil.
3. After each day of operation unscrew the drain cock (10)
under the tank to drain out any condensation that is in the
tank. This will protect the tanks from rusting and prolong
the product life. Once the draining has been completed
screw the drain cock (10) closed.
4. Regularly check the air filter insert cartridge inside the
air filter assembly (15) and clean or replace the insert
when necessary.
5. Check daily the operation of the safety valve. This check
should be performed when the tank contains close to
max pressure in the tank.
To check the valve, pressurise the tank, and pull the ring
OUTWARDS on the safety valve.
Air should discharge from the valve.
Release the ring of the safety valve. When the ring is
released the air discharge must stop.
WARNINGS.
Safety glasses must be worn when performing this test.