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cat 303cr

  1. W

    Cat 303CR will not start with key, blade only hydraulics when running.

    New here looking for some help. I have a 303CR, serial DMA-05055, which will not start with the key. I can jump the solenoid and the machine will run. However, I do not have any hydraulics accept for the blade. I believe the issue is in the safety switch circuit. Machine will shut off with...
    • Wen32FAB
    • Thread
    • cat 303cr safety switch wiring problems wiring schematic
    • Replies: 12
    • Forum: Excavators
  2. A

    Cat 303.5e sticky hydraulics

    Hey got a cat 303.5e mini excavator when using a function such as boom bucket or stick it stops and I have to release the joystick then pull back and it starts again, the functions also slow down when this happens, this same problem also occurs while tracking and you have to release the lever...
    • Aaron.ampcon
    • Thread
    • 303.5 303c cat 303cr cat excavator cat mini excavator caterpillar caterpillar excavator hydraulic problems mini excavator pilot controls
    • Replies: 157
    • Forum: Excavators
  3. R

    2005 Cat 303 CR Mitsubishi S3Q2

    Does anyone know if Mitsubishi S3Q2 has replaceable Cylinder Liners.
  4. embwin

    Worth buying a used cat 303cr?

    My first post so I apologize if this the wrong place or format. I have an opportunity to buy a used cat 303cr from my boss. It’s scratched and beat up and will need some work. He doesn’t take the best care of equipment but most of the stuff thats behind on it I can do my self. Change all the...
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