Manualsbrain.com
  1. Manuals
  2. Brands
  3. BENDIX
  4. BW2398
  5. User Manual

BENDIX BW2398 User Manual

Download
Page of 32
22
Symptom: 
What it may indicate: 
What you should do:  
15.0  Compressor 
constantly cycles 
(compressor 
remains unloaded 
for a very short 
time.)
(a) Air  brake  charging  system 
maintenance not performed. 
(b) Compressor unloader mechanism 
malfunction. 
(c) Air  dryer  purge  valve  or  delivery 
check valve malfunction.
(d) Air brake system leakage.
 
Available  reservoir  capacity  may  be  re-
duced by build up of water etc.  Drain and 
perform routine maintenance per Table A, 
columns 3 & 4, on page 13.
 
Go to Test 6 on page 25.
 
Verify operation of air dryer.  Follow vehicle 
O.E. maintenance recommendations and 
component Service Data information.
 
Go to Test 2 on page 24.
14.0  Air dryer 
doesn’t purge. 
(Never hear 
exhaust from air 
dryer.)
(a) Air dryer malfunction. 
(b) Governor malfunction. 
(c) Air brake system leakage. 
(d) Improper  governor  control  line 
installation to the reservoir.
 
Verify operation of air dryer.  Follow vehicle 
O.E. maintenance recommendations.
 
Go to Test 4 on page 25.
 
Go to Test 2 on page 24.
 
Go to Test 5 on page 25. 
12.0  Air dryer 
safety valve 
releases air. 
(a) Restriction between air dryer and 
reservoir. 
(b) Air dryer safety valve 
malfunction. 
(c) Air dryer maintenance not 
performed. 
(d) Air dryer malfunction. 
(e) Improper  governor  control  line 
installation to the reservoir.
(f) Governor malfunction.
 
Inspect delivery lines to reservoir for restric-
tions and repair as needed. 
 
Verify  relief  pressure  is  at  vehicle  or 
component  manufacturer  specifications. 
Replace if defective. 
 
See  Maintenance  Schedule  and  Usage 
Guidelines  (Table A,  column  3,  on  page 
13). 
 
Verify operation of air dryer. Follow vehicle 
O.E. maintenance recommendations and 
component Service Data information.
 
Go to Test 5 on page 25. 
 
Go to Test 4 on page 25.
13.0  Reservoir 
safety valve 
releases air  
(a) Reservoir safety valve 
malfunction. 
(b) Governor malfunction.
(c) Compressor unloader mechanism 
malfunction. 
 
Verify  relief  pressure  is  at  vehicle  or 
component  manufacturer's  specifications 
(typically 150 psi). Replace if defective. 
 
Go to Test 4 on page 25.
 
Go to Test 6 on page 25.
Technician removes 
governor.
Air dryer 
safety valve