E - Oil Temperature
•
Introduce a small amount of oil and a thermometer into the
thermometer pocket.
•
Allow compressor to run for 30 minutes in order to attain its
normal working temperature.
•
Average running temperature should be 88
°
C approx.
•
Refit fiIIer plug and its seal when testing is completed.
Average running temperature should be
approximately 60°C above ambient.
F - Air Output (Fig. 5.3)
•
Screw test nozzle into compressor outlet valve.
•
Close outlet valve and start compressor.
•
Open outlet valve fully to atmosphere.
•
Pressure indicated on the compressor gauge should not fall
below6.5 bar (7barcompressor) or 9.5 bar (10 barcompressor).
•
Test nozzle
Æ
must be reamed to a tolerance of
±
0.025mm.
G - Leakage Check
•
Examine all external seals, gaskets and pipe connections for air
or oil leakage.
•
No leaks are permissible.
H - Setting the Run-on Timer
•
The run-on timer sets the required duration of off-load running
after which the compressor will stop.
•
The timer is factory preset to 2 minutes, but may be reset to suit
the individual air system.
Note: Do not set the timer to less than 30 seconds.
•
For guidance, each division between the marks S (short delay)
and L (long delay) on the timer, represents approximately one
minute delay time.
Page 89
Adjustments and Testing 5
Figure 5.3 - Air Output
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