GBR Systems M-40, Operator'S And Service Manual

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M-40 OPERATOR & SERVICE MANUAL ISSUE 05/01 OPERATION
SECTION B – PAGE 32
B.7c Compressor Preventive Maintenance
CAUTION: Always use SJ-27 oil as other types of oil may cause serious
mechanical damage to the compressor. Consequently the warranty
only applies if SJ-27 oil is used.
Pumping times 0-8 bar (0 - 120 psi),
230V/50Hz, = 110 seconds
The pumping time indicates the condition of the compressor provided that
there are no leaks in the system where the compressed air may leak. Test
the compressor as follows:
1)
Empty the air receiver of compressed air (The pressure gauge shows 0
bar).
2) Close the outlet on the air receiver and check that the drain cock is
closed.
3) Start the compressor and note how long it takes until it switches off.
Make sure that the pressure in the air receiver is 8-bar/120 psi as deviations
may indicate the wrong results.
CAUTION: Always test the compressor when cold as the time indicated
refers to the pumping time of a cold compressor. The pumping time
of a warm compressor is much longer and consequently, the result
would be misleading.
Check the compressor oil
level whenever the cabinet is
open.
Adding Lubricant to Compressor:
Remove filler cap.
Insert unstopped end of tubing into filler hole.
Carefully tilt bottle to pour controlled amount of lubricant into filler hole.
Oil levels should be between MIN. and MAX. levels indicated at window.
Adding Lubricant to Compressor
Intake filter element
Auto drain bottle
Safety Air Relief
Valve Test