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Frequently Asked Question CPX

Frequently Asked Questions - CPX

TECHNICAL INFORMATION

 

Why not electro-mechanical? Why hydraulic components?

  • Self-adjusting. Piston extends further or less when heated or worn.
  • Internal hydraulic translation. Smaller electric motor with less power necessary. As a result, lighter assembly and CO2 savings.
  • For cushioning. Mechanical components are protected against vibrations

 

Back operation

  • Basically electrical
  • However, when the unit is de-energized, the clutch acts against the components with spring force and brings them into the starting position. For safety, an "engine brake" is integrated which prevents kickback.

 

Compatibility

Are there basically different versions?

  • In OE business, a distinction is made between trucks with internal combustion engines and vehicles with hybrid drives (mostly buses).
  • The actuator available in the aftermarket can only be used for vehicles with combustion engines. The reference for this is our current TecDoc data
  • The actuator for vehicles with hybrid drive is not available in the aftermarket

 

The built-in unit in the vehicle has 2 plug connections, the product supplied by Valeo has only 1. Can I use this unit?

 

  • There are 2 generations of the CPx in the vehicle fleet. The external distinction is made via the connector arrangement
  • The 1st generation has 2 sockets
  • The 2nd generation has 1 plug socket
  • The actuators currently supplied in IAM are backwards compatible and can replace all versions used so far.
  • To ensure compatibility, an adapter cable is included for connection to the vehicle
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I still have 1st generation versions in stock. Can I continue to use it?

 

  • 1st generation stock items can only be used for built-in parts with the same connector arrangement. Adaptation for the 2nd generation is not possible

 

Troubleshooting / diagnosis

 

Is the defect in the vehicle or in the CPx?

How does troubleshooting work?

 

  • The onboard diagnostics of the vehicle generates an error message
  • Use suitable diagnostic tools with current software for troubleshooting
  • If necessary, use OE data for interpretation
  • Exclusion of defects on the vehicle side can indicate a defect in the CPx

 

How can I as a customer / dealer determine whether there is a complaint?

 

  • The CPx can only be diagnosed with FTE
  • Use suitable diagnostic tools with current software for troubleshooting
  • Checks at the customer that go beyond a visual check for external damage are not provided
  • Exclusion of defects on the vehicle side can indicate a defect in the CPx

 

What common mistakes are complaints based on?

Are there any accumulations of the causes of errors?

 

  • The complaint rate of the CPx is very low
  • A cluster of causes of errors cannot be seen

 

Can a CPx with a triggered tilt sensor still be used?

  • The tilt sensor indicates whether the unit was transported upright. If improperly transported, the CPx can fall over and liquid can leak or air can enter the system. The CPx will then no longer be used.

 

Repair

How does the repair of the CPx work?

  • A repair of the unit is not planned

 

Can the unit be replaced without any further measures on the vehicle?

  • The purely mechanical replacement of the unit takes place without any problems - with all surrounding components functioning properly
  • Ensure that the piston rod is correctly seated in the clutch actuation
  • Learning and calibrating the unit after assembly is necessary. Suitable diagnostic tools with current software must be used for this
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