M670 front loader question

Caseboy1

Member
Hi guys, I'm looking for any help or ideas to improve the operation of the front loader on our M670 with the Tel-o-flo system. Several years ago, I installed, what I believe to be, a LS-800 MM loader. The loader is a high lift, so I'm not sure if the 800 would be a high lift or not. Anyway, it is a MM loader that bolted right up to this tractor. After installing it, I realized that the Tel-o-flo system only held approximately 2 gallons of fluid. When the loader is fully raised, the reservoir would be empty, if you filled the reservoir with the loader raised, it would overflow when lowered. I solved this problem by adding an additional reservoir and using a belt driven low pressure pump as a charge pump to keep the Tel-o-flo reservoir full. This worked fairly well so that all of the hydraulics worked like they should. I plumbed the loader into the auxiliary ports of the Tel-o-flo control valve. The loader works, but operates slow. I want to separate the loader from the rest of the hydraulic system by giving it its own reservoir, pump, and control valve. I'm thinking of mounting the pump where the belt pulley would be and using the belt pulley assembly to drive it. I really don't see anywhere else to mount it. Does anybody know of another pump mounting location that would work better? Does anybody have a belt pulley assembly for this tractor that you'd be willing to sell? Thanks for any help.
 
Doesn't it have 2 way cylinders? My big Westendorf loader works pretty good off the tractor system. The old Farmall loaders had one way cylinders but the top of cylinders acted as a reservoir and replenised the oil in the small belly pump as it was raised. The old Farmhand Loader with the 15 foot cylinder uses a PTO pump which we mounted on the front of the engine with a roller chain but it has a 5-10 gallon storage tank. I don't think belt driven Hydralic's work very good?
 
Yes, the lift and tilt cylinders are dual action. The belt driven pump that I added is only used to keep the reservoir replenished with fluid. The factory installed hydraulic pump is still the one that is supplying the pressure to raise and tilt.
 
I have 2 - U-302's with loaders and a M-602 that I had the WL-30 Westendorf loader on. Experensed no problems like that with the tractor tel-a-flow system. Seems like the small leaks always cause a need for filling between use. Maybe I wasn't lifting as high as you are?? Cleddy
 
Yes your idea will work very well. You need to find a side mount Ind. pump off of an Ind. 5Star,M5, 602 ect to mount in that belt pully opening. (pretty scarce). Another way you can increase the speed a quite a bit is to replumb your present system. you will have to add a set of valves. But that is a plus because you want a double valve with one valve having a float position. Remove the pressure line coming put of the pump to the tel-o-Flo. Run the line to your new valves and then run a line from the valves to the Te-o-Flo. The 3pt Tel-o-Flo slows down the oil flow. However a big Ind. pump will be faster.
MMDEL
 
Thanks for the input guys, I really appreciate it. I'll start searching for an industrial pump and the belt pulley assembly. Maybe I'll get lucky. Hope you both enjoy what's left of your weekend.
 

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