LA 703 Loader

[k0ua]

Thanks to all who told me about pressure. The dealership we bought from sent their "service manager" out who looked at the bales and said this tractor would never pick up the bales(1000#-1200#). After discussion on this site, we contacted another dealer and was told about the little knob under the seat. So I think we have solved problem on lifting bales. Interested in weight box you built for back end.

I hate to be this way, but the little knob under the seat has nothing to do with setting you system relief pressure. That little knob under the seat is to adjust the drop rate of the 3 point implement you may have on the back of the tractor on the 3 point hitch. The heavier the implement is the faster it will drop. You adjust it so the implement does not hit the ground so hard, but falls slowly and smoothly.. The relief pressure is adjusted usually with shims but sometimes you can just turn a bolt head on the hydraulic fluid distribution block under your right foot under the floor pan of the tractor to make small adjustments. There are several threads on this forum that describe the procedure to adjust relief pressure to factory specs. You may need an assortment of shims to make the adjustment, and a pressure gauge 0 to 3000 lbs or 0 to 5000 lbs and the proper hose and fittings. If under warranty this is best left to your dealer to do. I would think you tractor is capable of lifting the 1000 to 1200 lb bales. I would get some dealer mechanic who knows what he is doing to examine the system pressure. and adjust as needed.

James K0UA

 

[dex3361]

Thanks to all who told me about pressure. The dealership we bought from sent their "service manager" out who looked at the bales and said this tractor would never pick up the bales(1000#-1200#). After discussion on this site, we contacted another dealer and was told about the little knob under the seat. So I think we have solved problem on lifting bales. Interested in weight box you built for back end.

Are you saying that it will now lift the hay bales? As posted the knob should have nothing to do with how much the FEL will lift. The LA703 is adjusted with shims. Here is a link on
Adjusting the Relief Pressure on a Kubota LA703

 

[Gloria Petty]

I am saying it now lifts the bales. I was told to adjust the black knob under seat by another dealership. They said it must have been totally off. Now I'm really confused. Picked up bale with back forks and then picked up bale with front forks.

 

[General Lee]

I am saying it now lifts the bales. I was told to adjust the black knob under seat by another dealership. They said it must have been totally off. Now I'm really confused. Picked up bale with back forks and then picked up bale with front forks.

Interesting........like others have said, the knob under the seat has nothing to do with adjusting lift capacity. Unless it was totally closed then your 3 point hitch wouldn't move at all, but your loader would still work.

 

[creekbend]

I am saying it now lifts the bales. I was told to adjust the black knob under seat by another dealership. They said it must have been totally off. Now I'm really confused. Picked up bale with back forks and then picked up bale with front forks.

As others have stated, the knob that you are referring to under the seat is called the "3-point hitch lowering speed knob". While sitting in the seat, turning the knob to the right, the lowering speed will be increased. Turning the knob to to the left will decrease the lowering speed. If you turn the knob all the way to the left, it will lock. I have a L4400 with gear drive shuttle transmission. Although you have the hydrostatic transmission, the 3-point hitch lowering speed knob works the same way in regards to either transmission. This is word by word from the Operator's Manual. I adjust the knob on my tractor in regards to the weight of the implement that I have on at the time. I am somewhat confused when you made the statement that your service manager called another dealer and that dealer mentioned the knob under the seat. To my knowledge the 3-point hitch lowering knob has no effect on the hydraulics associated with the FEL. Best wishes.