Discussion:
pressure readings in CAT DP40 3CM13268 transmission

Hi guys. Anyone knows what pressure readings should be taken from a Cat DP40 transmission? Truck is barely moving once started, but does work OK when temperature raises.
Any help will be appreciated.
Cheers,
OB1
  • Posted 14 Oct 2011 10:35
  • By ob1kenobi
  • joined 22 Nov'10 - 153 messages
  • SAN P.SULA, Honduras
Cheers!
Showing items 1 - 4 of 4 results.
Thanks so much AndyPandy.
Regards,
OB1
  • Posted 15 Oct 2011 06:51
  • By ob1kenobi
  • joined 22 Nov'10 - 153 messages
  • SAN P.SULA, Honduras
The main pressure should be between 142 and 177 psi. The same pressure should also be found at the F/R clutch packs.
All tests should be carried out at 1600 rpm.
  • Posted 15 Oct 2011 05:09
  • By AndyPandy
  • joined 26 Oct'07 - 175 messages
  • Staffordshire, WM, United Kingdom
Thanks for the info AndyPandy. Will do as suggested. I'd still appreciate if you still get me the pressure reaidngs.

Cheers,
OB1
  • Posted 15 Oct 2011 04:32
  • By ob1kenobi
  • joined 22 Nov'10 - 153 messages
  • SAN P.SULA, Honduras
Cheers!
Change the oil and clean/replace the strainer. Double check that the external steel pipe from the strainer to the pump is not damaged and drawing air. I can get you the pressures but as it works OK when hot I doubt you have a pressure problem.
  • Posted 14 Oct 2011 18:27
  • By AndyPandy
  • joined 26 Oct'07 - 175 messages
  • Staffordshire, WM, United Kingdom

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