861 question

DD in WA

Member
Underneath the tractor yesterday and I notice near the small hole with the cotter pin that lets oil drip out there is a plate about 5 inches square held on by four bolts. What is this plate for and what's
underneath it? Thought it would be easier to ask than actually remove it and possible create a problem I don't currently have.

Thanks,
 
Its a weep hole, cotter pin keeps it cleaned out. If you have a leak in tranny input or rear main engine seal it will leak out of the weep hole. Thick oil is gear oil from tranny, thin oil is rear engine seal. If its a diesel the engine oil will be black.
 
Understand about the weep hole, interested about the 5 inch plate. Is it just access into that same area?
 
(quoted from post at 06:48:43 07/29/17) Sounds like it could be the cover for the pressure relief valve for the hydraulic system.

The pressure relief cover is triangular with three screws last Looked.
 

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