Ford 7710 Hydraulic system drain plugs

Packfan

New User
Hello all,
I have a new-to-me 1986 Ford 7710 4wd tractor and want to service the fluids. I am sure the Fords are similar to other tractors as far as dropping the hydraulic oil but I wanted to check in with the experts here. I purchased the repair manual for the tractor and it does not go over the maintenance items. I will get an owner's manual for that stuff. The book states that the trans/hydraulic/pto holds 14 gallons of oil. Are there several drain plug locations that dump part of the 14 gallons at a time or is there one main plug? Looks like a filter on the left side of the tractor near the back of the engine and one on the right side of the transmission. From reading other posts, there is also a inlet screen filter near this filter? Thanks all!
 
Hello all,
I have a new-to-me 1986 Ford 7710 4wd tractor and want to service the fluids. I am sure the Fords are similar to other tractors as far as dropping the hydraulic oil but I wanted to check in with the experts here. I purchased the repair manual for the tractor and it does not go over the maintenance items. I will get an owner's manual for that stuff. The book states that the trans/hydraulic/pto holds 14 gallons of oil. Are there several drain plug locations that dump part of the 14 gallons at a time or is there one main plug? Looks like a filter on the left side of the tractor near the back of the engine and one on the right side of the transmission. From reading other posts, there is also a inlet screen filter near this filter? Thanks all!
3 plugs need to be removed to drain all of the oil, one in the back of the trans, one in front of the drawbar in the rear axle, and one under the drawbar in the PTO housing.

Edit: I missed the 4WD part the first time. The rear axle drain plug is replaced with the drain plug on the bottom of the transfer case.
 
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The Operator's Manual, sometimes called the Owner's Manual, has all of the information for routine maintenance like fluid and filter changes. The Service Manual, sometimes called the Repair Manual, assumes that you have access to the Operator's Manual and so it does not contain the routine maintenance items.
 

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