BENDIX ATR-1V Installation Instructions

Traction Relay
Valve Body
Supply Port
FIGURE 1 - BENDIX ATR-1V
®
Kit Contents
Key No. Description
1 . . . . . . Bendix
2 . . . . . . Bendix
3 . . . . . . Bracket (varies by kit)
4 . . . . . . Adapter harness (varies by kit)
VEHICLE PREPARATION
Follow all standard industry safety precautions – including,
but not limited to – those listed on page 2 of these instructions.
1. Park the vehicle on a level surface and block the wheels
and/or hold the vehicle by means other than the air
brakes.
2. Drain the air pressure from all vehicle reservoirs.
REMOVAL
1. Prior to disassembly, remove as much contamination as
possible from the exterior of the device.
2. Identify and mark, or label, the electrical wiring harness
and air hoses and their respective connections on the
valve to aid the technician during reinstallation.
Installation
Instructions
Some Installations Include a Top-
mounted Electronic Control Unit
(ECU)
Bendix ® ATR-1V ™ Traction
Relay Valve
TRACTION RELAY VALVE REPLACEMENT KIT
™
R‑14 Relay Valve
® ®
AT‑3 Traction Valve
® ™
Valve Body
Bracket Supplied
Varies by Kit Number
Service Port
(varies by kit)
1/8-27 NPT
is shown here
Service Port
Bendix R-14
® ®
Relay Valve
Delivery Ports
3. Disconnect the air hoses from the Bendix
system ATR‑1V
4. Disconnect the electrical connections.
5. Remove the mounting hardware bolts and then remove
the Electronic Control Unit (ECU) from the valve, if so
equipped. (See Figure 1).
6. Discard the original traction relay valve body.
INSPECTION
Inspect the mounting location for deterioration, wear, and
corrosion. Replace and/or repair as necessary.
INSTALLATION
See the schematic diagrams (Figure 4) as you plan the
locations to install the replacement components. Take into
consideration the routing of the electrical harnesses, hoses
and orientation of the replacement valves, and the remote
mounting of the ECU controller. Note that the schematics
show the new air lines (some indicated as 3/8 inch) that will
be required for this repair.
Note: All torques specified in this document are assembly
torque and can be expected to fall off slightly after assembly.
Do not re‑torque after initial assembly torques fall off. For
assembly, use hand tools or torque limited drivers.
Replace Bendix ATR‑1V
®
Relay Valve with Bendix
Relay Valve and AT‑3
Through Holes
for Mounting
Supply Port
(2)
1/4-18 NPT
4. Adapter Harnesses
(Varies by Kit Number)
traction relay valve.
™
Traction
™
R‑14
® ®
Traction Valve
™
Electrical
Connector
Solenoid Body
Bendix ® AT-3 ™
Traction Valve
(Two Views)
Delivery Port
1/4-18 NPT
ValuTrac
® ™
1