HayDR
Veteran Member, Approved Advertiser
Henro,
If a valve works perfectly when on a new tractor it might not later on in the life of the tractor. There are many reasons why this may be happening. The #1 problem with tractor hydraulic systems is the lack of proper maintenance. Change all the filters hydraulic filters religiously. Most systems have 2 or three filters. Usually one of the filters requires some mechanical ability to change. If you change just one filter of the 2 filters then just doing this will catch up with you during the life of your tractor. If you have a dirty hyd. system then the dirt is cutting into the valve seats and o-rings and causing a drift or by-pass. Tractors that have wet brakes can cause metal particles to get into the system if brakes are worn out and are not replaced in a timely manner. The older a tractor gets the likely hood that the hydraulic valves drift will increase. Most tractors use a transmission/hydraulic oil from one oil sump to lubricate the transmission, run the power steering, power the braking, run the PTO & supply flow to the exterior attachments. Use the factory recommended oil & change the filters and you still will have some drift with time.
If a valve works perfectly when on a new tractor it might not later on in the life of the tractor. There are many reasons why this may be happening. The #1 problem with tractor hydraulic systems is the lack of proper maintenance. Change all the filters hydraulic filters religiously. Most systems have 2 or three filters. Usually one of the filters requires some mechanical ability to change. If you change just one filter of the 2 filters then just doing this will catch up with you during the life of your tractor. If you have a dirty hyd. system then the dirt is cutting into the valve seats and o-rings and causing a drift or by-pass. Tractors that have wet brakes can cause metal particles to get into the system if brakes are worn out and are not replaced in a timely manner. The older a tractor gets the likely hood that the hydraulic valves drift will increase. Most tractors use a transmission/hydraulic oil from one oil sump to lubricate the transmission, run the power steering, power the braking, run the PTO & supply flow to the exterior attachments. Use the factory recommended oil & change the filters and you still will have some drift with time.