Troubleshooting guide

82
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System Schematic
C
S
Front
Axle Reservoir
Rear
Axle Reservoir
MV-3
®
Control Valve
Bendix
®
TCS-9000
™
Valve
QR-1C
®
Quick
Release Valve
AD-IS
®
Air Dryer
WS-24
™
Wheel
Speed Sensor
R-12
®
/R-14
®
Service
Relay Valve
Hose Couplings
WS-24
™
Wheel
Speed Sensor
PP-5
™
Control
Valve
(for pre-trip
inspection)
TP-3DC
™
Tractor
Protection Valve
EC-60
™
Electronic
Controller
ADB22X
™
Air Disc
Brake
Bendix
®
E-8P
®
/
E-6
®
Brake Valve
with
BVA-85
™
Brake
Valve Actuator
Low Pressure
Indicator
To Accessories
Antilock
Modulator
(4 places)
Quick
Release
Valve
Standard
1
Premium
2
ES Drum Brake w/
Automatic Slack
Adjuster and SB-4
™
Spring Brake Chamber
Tu-Flo
®
550/
Tu-Flo
®
750/
BA-921
®
/ BA-922
®
Air Compressor
Bendix
®
Extended Service (ES)
™
Drum Brake with
Automatic Slack
Adjuster and Service
Chamber
Stop Light
Switch
Control
Supply
Typical Tractor System Schematic
Typical Tractor System Schematic
ADB22X
™
Air Disc
Brake
Notes:
The color coding of the brake system schematic follows TMC Recommended Practice #423.
Air disc & drum brake actuation combined on a single axle are shown for pictorial purposes only.
1
Equipped with standard Bendix
®
ABS Antilock Brake System
2
Equipped with Bendix
®
ABS and Smart ATC
™
Traction Control
TRUCKS AND TRUCK TRACTORS:
Charging Primary Secondary Park (Supply) Parking (Control) Accessories
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