flusher
Super Member
- Joined
- Jun 4, 2005
- Messages
- 7,538
- Location
- Sacramento
- Tractor
- Getting old. Sold the ranch. Sold the tractors. Moved back to the city.
This continues a couple of previous threads.
http://www.tractorbynet.com/forums/...nneapolis-moline-bf-restoration-progress.html
http://www.tractorbynet.com/forums/...eapolis-moline-bf-restoration-continuing.html
I spent most Oct-Nov09 cleaning and spray painting parts. Then the weather turned damp and cold so I put the spray gun away and started working on the hydraulics and the electrical system.
This MM BF has the HJK hydraulic lift system consisting of an Eaton hydraulic pump that runs off the timing gear on the front of the engine,
and a hydraulic reservoir that contains the control valves that operating the hydraulic cylinder that moves the 3pt hitch up and down. As near as I can tell from the MM manuals, this system is pieced together from parts of the MM Uni-matic hydraulic system that MM developed in the 1950s.
I disassembled these components, thoroughly cleaned out the gunk and reassembled with new seals where needed.
Here are some shots of the hydraulic reservoir and the control valve that fits inside
As usual when restoring these old tractors, you get slowed by dumb things. In this case it was stuck hydraulic fittings that attach the hydraulic hoses to the reservoir. I finally had to cut the hoses (they were trash anyway) and weld a piece of 1/2"x1" bar stock on the stub so I could get leverage to unscrew these babies.
You need to be real careful when applying the muscle to metal castings like this so you don't crack the casting or booger up the threads in the casting. Then you really have a problem since replacements for parts like these are very difficult (sometimes impossible) to find.
More later.
http://www.tractorbynet.com/forums/...nneapolis-moline-bf-restoration-progress.html
http://www.tractorbynet.com/forums/...eapolis-moline-bf-restoration-continuing.html
I spent most Oct-Nov09 cleaning and spray painting parts. Then the weather turned damp and cold so I put the spray gun away and started working on the hydraulics and the electrical system.
This MM BF has the HJK hydraulic lift system consisting of an Eaton hydraulic pump that runs off the timing gear on the front of the engine,
and a hydraulic reservoir that contains the control valves that operating the hydraulic cylinder that moves the 3pt hitch up and down. As near as I can tell from the MM manuals, this system is pieced together from parts of the MM Uni-matic hydraulic system that MM developed in the 1950s.
I disassembled these components, thoroughly cleaned out the gunk and reassembled with new seals where needed.
Here are some shots of the hydraulic reservoir and the control valve that fits inside
As usual when restoring these old tractors, you get slowed by dumb things. In this case it was stuck hydraulic fittings that attach the hydraulic hoses to the reservoir. I finally had to cut the hoses (they were trash anyway) and weld a piece of 1/2"x1" bar stock on the stub so I could get leverage to unscrew these babies.
You need to be real careful when applying the muscle to metal castings like this so you don't crack the casting or booger up the threads in the casting. Then you really have a problem since replacements for parts like these are very difficult (sometimes impossible) to find.
More later.