BENDIX TLV-9000 Service Data

BENDIX TLV-9000 Service Data

Lift axle valve

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®
TLV-9000
Lift Axle Valve
12 VDC Electrical
Twist-Lock
Connector
(2-Pin Bayonet
Style)
23
Lift Bag
Delivery
21
Suspension
Bag Delivery
Figure 1 – TLV-9000
Lift Axle Valve
DESCRIPTION
The TLV-9000
lift axle valve is used on trailers or
vehicles with Bendix
®
multi-channel systems to control the lift axle(s) raising
and lowering automatically. This allows the vehicle to
use extra axle(s) when required for payload distribution
and to be unloaded to save on wheel-end wear and fuel
economy.
Port / Function
Lift Bag - Supply
Suspension Bag - Supply
Lift Bags - Delivery
Suspension Bags - Delivery
Exhaust
Connector: DIN72585-A1-2.1
Weight: 1.2 lbs.
Operating Pressure: 145 psi Max
Operating Temperature: -40° – 200°F
Table 1 – TLV-9000 Lift Axle Valve Characteristics
TABS-6
Advanced single- and
Embossed ID
1
11
23
21
-
Mounting
Holes
The lift axle contains a solenoid for electronic switch
lifting and lowering actuation. The lift axle valve contains
3/8" push-to-connect fittings for easy installation.
Refer to Table 1 for port identification and other valve
characteristics.
Port Size
Quantity
3/8"
1
3/8"
1
3/8"
2
3/8"
2
-
1
1
Lift Bag Supply
(From Reservoir)
Exhaust - Cannot
Be Pointed Down
(Toward the Road)
when Installed
11
Suspension Bag
Supply
(From Height
Control Valve)
1

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Summary of Contents for BENDIX TLV-9000

  • Page 1 3/8" Suspension Bag - Supply 3/8" Lift Bags - Delivery 3/8" Suspension Bags - Delivery 3/8" Exhaust Connector: DIN72585-A1-2.1 Weight: 1.2 lbs. Operating Pressure: 145 psi Max Operating Temperature: -40° – 200°F Table 1 – TLV-9000 Lift Axle Valve Characteristics...
  • Page 2: General Safety Guidelines

    ▲The power MUST be temporarily disconnected from the radar sensor whenever any tests USING A DYNAMOMETER are conducted on a vehicle equipped with a Bendix ® Power ON Wingman system.
  • Page 3 FRONT Lift Axle Relay Valve Trailer ABS Module Lift Axle Figure 4 – Typical Trailer Air Brake System with a TLV-9000 Lift Axle Valve ™...
  • Page 4 Trailer Service Relay Valve (LOAD) Module Control Port Lift Axle Figure 5 – Normal Operation TLV-9000 Valve Lifts the Axle by Exhausting the Suspension Bags & Filling the Lift Bags ™ Lift Axle Suspension Bag Lift Bag Bendix TR-3 ®...
  • Page 5 ECU. During normal operation the driver does not switch is activated. When the switch is deactivated, the control the lift axle. For drop-axle control Bendix offers a axle will only raise if the trailer payload is under the weight manual override harness available from any authorized requirement (normal load sensing operation).
  • Page 6: System Diagram

    SERVICE suspension height. The TLV-9000 lift axle valve sold in North America is The valve has two air supply (inlet) ports and four air non-serviceable. See your authorized Bendix service parts delivery (outlet) ports.
  • Page 7 6. Remove the test plugs and reconnect both lines back to the suspension bag delivery ports (Ports 21). Turn off the power to the TLV-9000 lift axle valve. The lift axle should return to its original position. If the valve does not function as described; or if leakage is...
  • Page 8: Troubleshooting

    Log-on and Learn from the Best On-line training that's available when you are 24/7/365. Visit brake-school.com. SD-03-3430 Rev. 001 © 2019 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 05/19 • All Rights Reserved...

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