• 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!

D6H how to check priority valve pressure

Chisumtrail

Well-Known Member
Joined
Nov 25, 2012
Messages
99
Location
Texas
Occupation
Parts changer
We have a D6H in the shop transmission getting hot. To check the priority valve book shows to check on top rear of transmission housing. On this dozer that is where the oil comes into the transmission from the filter. Serial number is 3ZF6XXX, power shift, differential steer.
Thanks
 

4730

Well-Known Member
Joined
Oct 8, 2017
Messages
89
Location
Canada
We just had same thing trans getting hot. Ended up torque converter bearing had gone wearing turbine bypassing oil heating everything up. So put new cti one in and it ends up being faulty as well! Was made wrong from factory how bad is that.
 

twr

Well-Known Member
Joined
Jan 22, 2013
Messages
193
Location
texas
chisumtrail is in field today but the owner has replaced water pump and cores pulled converter looked at it didn't see any thing wrong when ask about amount of oil was in it he said apx. 1 gal but they changed it anyway along with pump but its still heating
 

4730

Well-Known Member
Joined
Oct 8, 2017
Messages
89
Location
Canada
The new torque converter we got was over 43 thousands , between impeller and turbine. Wore out is 20 thousands. So they cut the turbine wrong or impeller. Not saying this is your problem but something to look into if you dont find anything .
 

twr

Well-Known Member
Joined
Jan 22, 2013
Messages
193
Location
texas
could be but I fell like this tractor has been doing this for a while it had a 160 deg. thermostat in engine but trans.gets hot first we pulled valve out and checked it all O-rings look new like had been changed but my inlet pressure is only 70 every thing else ok
 
Top