Bendix Commercial Vehicle Systems ADB22X-V Air Disc Brakes - Manual (Page 9)

9
FIGURE 14 - TROUBLESHOOTING BENDIX AIR DISC BRAKES
SECTION THREE: TROUBLESHOOTING PROCEDURE FLOWCHART
Air Disc Brake Inspection
Follow safe maintenance practices,
chock wheels. Engage spring brakes
and cage spring. Release spring
brakes and drain air from system.
Raise axle, spin
the wheel by
hand.
Tightness not due to
air disc brake. See
vehicle manual.
Replace caliper/
carrier assembly
(5.3)
Drain air pressure from
system. Re-start test after
caging spring brakes
Replace caliper/
carrier assembly
(5.3)
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
Replace guide pins
(5.6) OR replace
caliper/carrier
assembly (5.3)
Replace components
as needed with
genuine Bendix parts.
Disc brake OK
Does
the wheel
turn smoothly?
Is
the
spring brake fully/
partially applied?
Check
running
clearance (4.1)
- OK?
Check
caliper
guidance (4.5)
- OK?
Check
running
clearance (4.1)
- OK?
Check
adjuster (4.2)
- OK?
Check
Pad and rotor
wear (4.3-4.4)
- OK?
Check
Adjuster (4.2)
- OK?