CAT TH407C overheating transmission

jpn

Member
Arable Farmer
We've got a 2014 th407c which the transmission seems to overheat very easily, looked around at forums and it seems a reasonably common issue, they recommend getting a mechanic to fit an expansion tank for the trans fluid and and extra external oil cooler for it, any body know 1) how I could do that in the shop or 2) anyone who could do it professionally in the Hertfordshire area or further afield...

Another issue is rubbish Aircon, but I think the trans getting hot could be causing the cab to get hot and therefore making the Aircon seem awful...

Cheers
 

icanshootwell

Member
Location
Ross-on-wye
I presume you have washed all the rads out thoroughly, its does help, are you dragging heavy loads up hill or is it getting hot just doing normal jobs around the farm?
 

jpn

Member
Arable Farmer
I presume you have washed all the rads out thoroughly, its does help, are you dragging heavy loads up hill or is it getting hot just doing normal jobs around the farm?
Yep the are well cleared out, it has the reversible fan fitted too. And loading a stacking straw and loading up dirt/grain etc. Nothing livestock
 

Timbo

Member
Location
Gods County
has it got some form of thermostat for the tranny cooler ? At that oil temp dping light work , it cant be cooling at all. Does the cooler feel like 120c to the touch ? Infra red thermo esse ntial for this kinda diagnosis...
 

jpn

Member
Arable Farmer
has it got some form of thermostat for the tranny cooler ? At that oil temp dping light work , it cant be cooling at all. Does the cooler feel like 120c to the touch ? Infra red thermo esse ntial for this kinda diagnosis...
I haven't properly checked, but you can tell it's much hotter than normal when it does get hot, we've had a mechanic have a look and he has done his best to keep it cool (check the rad etc)
 

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