Transmission or main pump?

[David Hunter]

Hello in the camp. So being new here thanks for any info you guys can help me with my 550 (a) crawler. Bought it a few months ago and it worked ok on demo. Got it home pulled good 20 min. then everything stopped pulling properly. Checked pressures on several ports . The Main pressure is appox. 180psi. I see where it should be 255 +-12psi. My question is if the main pressure is to low at high idle is oil slipping through the clutches or is the low pressure allowing the oil through? Or as I hope it isn't rebuild trany time or hopefully a rebuilt pump. Thanks for any help. biglevee

[shinnery]

This question should really be in the late model thread. This thread is for mainly the 2010Cs and older. Perhaps Lavoy can move it. I thought Ma Deere was real big on skipping A models, the basic crawler was a 550 and the first main revision was to 550 B.
Bryce

[David Hunter]

Sorry about posting on wrong message board . Please move. Thanks D