• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. J

    CAT 303CR Slow Swing

    Have it at the mechanic, he is saying pilot and supply pressures are correct. Does the Attachment and Boom Convergence Valve (20) change positions when trying to swing? Could that be blocking the return line from the Swing Control Valve (21)? But when you bump the boom down it is operating the...
  2. J

    303 CR Hydraulic Line locations

    Has it warmed up enough to venture to the mill?
  3. J

    303 CR Hydraulic Line locations

    That's a bit cold for this Georgia boy. We hit 68F today, heading for 27F on Sunday. Thanks for the drawing, it doesn't help unfortunately. I have the full hydraulic schematic, it just does not list the lines individually.
  4. J

    CAT 303CR Slow Swing

    History is questionable, previous owner had the boom and bucket hoses swapped on the main valves, after fixing a leak. That's why I'd like to confirm hose locations. The blade and boom swing work perfectly. If I can get teed into the lines on the swing brake control valve, I should see...
  5. J

    CAT 303CR Slow Swing

    Gut says swing brake. You can feel the engine lug slightly when you try to swing. When you try to swing and simultaneously lower the boom the brake releases and the swing works as normal. So seems like the boom down is giving correct pilot pressure to the brake. This is how the pilot lines...
  6. J

    303 CR Hydraulic Line locations

    Thanks Billrog, here is the picture.
  7. J

    303 CR Hydraulic Line locations

    Trying to confirm the pluming of a few lines on a 303 CR, SN-DMA02366. I'm thinking the 2 light blue lines coming from the manifold valve going to the unlabeled spool on the right isn't correct. And also the orange line from the unlabeled valve on the left going to the R on the swing brake and...
  8. J

    CAT 303CR Slow Swing

    I can feel the supply hoses to the swing motor getting oil when moving the joystick. Is the swing brake hydraulic?
  9. J

    CAT 303CR Slow Swing

    It was under the video, should have put it before, sorry. SN- DMA02366
  10. J

    CAT 303CR Slow Swing

    I also can not get the boom to lower if the machine is off. Even with the key on and left armrest down. Possible issue with the accumulator?
  11. J

    CAT 303CR Slow Swing

    New to me Cat 303CR the swing function is incredibly slow. If I bump the boom control down the swing will operate at full speed as long as you are swinging. If you stop for more than a second or two the swing goes back to being slow. Any one have any experience with this issue?
  12. J

    CAT 303CR Slow Swing

    New to me Cat 303CR the swing function is incredibly slow. If I bump the boom control down the swing will operate at full speed as long as you are swinging. If you stop for more than a second or two the swing goes back to being slow. Any one have any experience with this issue? SN- DMA02366
Top