Bendix Commercial Vehicle Systems BA-921 COMP - Manual (Page 13)

13
Bendix
®
BA-921
®
Compressor Installation and Application Review
Section IV Air System Components (cont’d)
Coolant Return
Return Port Location: _____________________________
Line size to: ____________________________________
Distance to: ____________________________________
Measured coolant flow rate
At engine idle: ______________________
At engine rated speed: _________________
Recommended
Test Procedure:
Install a flow meter in series with the coolant supply or return line of the air
compressor. Note the flow rate through the compressor when the engine
thermostats are open at engine idle and rated speed.
Was measured flow rate greater than .4 gpm at idle and 1.4 gpm at rated speed?
YES NO
Measured Coolant Pressure Drop - Alternative measurement method. (Pressure drop across
compressor coolant inlet and outlet ports)
At engine idle: ______________________
At engine rated speed: _________________
Recommended
Test Procedure:
Install a pressure gauges at the coolant inlet and outlet fittings of the air
compressor. Record the pressures (or pressure differential) at engine idle and
engine maximum rated speed.
Was the measured pressure drop greater than 0.8 psi at idle and 1.6 psi at maximum rated
speed?
YES NO
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