Global Machinery Company AC40L - Manual (Page 14)

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, use the drain
cock (11) under the tank
to drain off any
condensate.
4. Regularly check the air
filter cartridge inside the
air filter assembly (17)
and replace the cartridge
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.
Do not have your face close to the safety valve when
performing this test as air will discharge from the valve at
a high force.
If the safety valve does not operate correctly in any way
as described above, turn off the compressor immediately
and have the compressor and safety valve checked and
tested at an authorised Service centre.
DO NOT CONTINUE TO USE THE COMPRESSOR IN ANY
WAY IF THE SAFETY VALVE DOES NOT WORK AS ABOVE.
14
Insufficient pressure or decreased
outlet capacity
Excessive oil consumption
1. Motor running too slow
2. Dirty air filter cartridge
3. Leaking safety valve
4. Leaking pipe
5. Damaged gasket
6. Damaged or carbon coated valve
seat
7. Damaged piston ring or cylinder
1. Oil level too high
2. Hole in oil filling cap (14) blocked
3. Piston ring and/or cylinder worn or
damaged
1. Use authorised service centre to
check and repair if necessary
2. Clean or replace the filter cartridge
3 – 7. Use authorised service centre to
check and repair if necessary
1. Maintain the oil at the correct level
2. Check and clean
3. Use authorised service centre to
check and repair if necessary