Bendix Commercial Vehicle Systems PURAGUARD QC SYSTEM FILTER - Manual (Page 6)

6
BW2396 © 2004 Bendix Commercial Vehicle Systems LLC All rights reserved. 1/2004 Printed in U.S.A.
PURAGUARD QC ™ OIL COALESCING FILTER TROUBLESHOOTING CHART
SYMPTOMS
1. More often than normal
(monthly) sump draining
required.
CAUSE REMEDY
A. PuraGuard QC ™ oil
coalescing filter installed
in incorrect position in
system.
B. Alcohol injector in
system.
C. Air dryer malfunction.
D. Compressor malfunction.
2. Bypass feature not
working.
A. Supply and delivery air
connections reversed.
A. Reverse hose connections.
A. See figure 3.
B. The PuraGuard QC ™ filter is not recommended
to be used in conjunction with an alcohol
evaporator or injector. [The PuraGuard QC
™
filter will remove the liquid or aerosol alcohol
introduced, defeat the purpose of the evaporator/
injector and require the sump to be drained more
often than usual.]
C. Check the air dryer.
D. Check the compressor.
3. Oil in the system.
A. Supply and delivery air
connections reversed.
B. Sump not drained
regularly.
C. Cartridge maintenance
interval exceeded.
D. Air dryer malfunction.
E. Compressor malfunction.
A. Reverse hose connections.
B. Drain the sump every 300 operating hours, 8,000
miles or one (1) month. (Draining can be done
more frequently if desired.)
C. Use a maintenance kit to replace the cartridge
every 3600 operating hours, 100,000 miles or
one (1) year whichever is less.
D. Check the air dryer.
E. Check Compressor.