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How to Test and Adjust Compressor and Relays for Kubota U48 U55 Excavator

Posted on December 18, 2023 by VCDS
How to Test and Adjust Compressor and Relays for Kubota U48 U55 Excavator (6)

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This instruction show you guide on how to check test and adjust compressor and relays for Kubota U48-4/U55-4 excavator.

 

Preparations:

2022 Kubota Takeuchi Diagmaster v22.08.01 v4.1.2 Software Free Download
Kubota DST-i Diagnostic Adapter

Kubota EPC Spare Parts Catalogue 2021.06 Download

 

 

Procedures:

Compressor

Magnetic clutch
1 Start the engine.
2 With the AC switch on the AC control panel off, check and make sure that no scraping sounds or other noise comes from the pulley as it turns.
3 Turn the AC switch and the fan switch on to make the AC system operate. With the AC working, check and make sure the magnetic clutch is not slipping.
4 If there is any noise, repair or replace it.

How to Test and Adjust Compressor and Relays for Kubota U48 U55 Excavator (1)

Stator coil
1 Remove the magnetic clutch

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