Mf 750 combine
- Thread starter 6480
- Start date
I seem to remember the larger brother could be prone to the shaker shoes breaking/cracking up. I would guess if it is in tidy order and running well it would eat 15 acres. The better header was the power flow with the deeper table and feeder belts. Big bulky combine for the header size.
trebornella
Member
Probably the best combine Massey made. Built like a brick ---- house. Find one thats been stored undercover if poss (less rust issues). No real weak points, just keep an eye on the shaker pitman arm and lower pulley/ housing (below fuel tank). Pull the sieves and check the canvas's for rat damage and check the grain pan for rusty holes on outdoor machines . Most bearings are standard items the bearings suppliers will have so no need to pay silly dealer prices, and shafts can be built up and machined if worn. Check splined couplings from gearbox to final drives, have been known to lose the roll pins and drift out of mesh. Lots of parts are the same as the bigger and wider 760 models. Worked on them for many years and never had a concave, drum or rear beater out of one. Cab electrics rely on engine oil pressure, check spade terminals on the oil pressure switch on the front of the engine. Header issues are likely to be non working reel speed, usually a seized pintle valve / motor on the reel hydraulic pump, easily dismantled and freed off and a wandering poly vee belt. Again just a case of lining up the pullies. ATHC may not work (never was brilliant). Powerflow header is nice but expensive to maintain, new profile table is simple and perfectly adequate in cereals. Find a good one and it will breeze through your acreage.
Well where to begin? I think they are great, but I bleed red.
It's more than 40 years old so a fair bit of mechanical ability and inventevness may be needed. Knowing a breaker for spare parts would be useful. There are quite a few electrical bits on them which are useful when working, but nothing that will stop the machine working if there's a fault. Mechanically well over engineered, standard perkins engine, transmissions mech and hydro are fairly bullet proof, the only time i've been into a gearbox has been to replace a sheared roll pin. never opened a final drive. As for the harvesting side of things, no more than the usual stuff on any combine of that age, check for bearing / shaft wear, belts, rubber bushes, seals and curtains. 1 potential problem area could be the electro/hydraulic header lift valve, if it works fine, if not find someone who knows about them to work on it.
It's more than 40 years old so a fair bit of mechanical ability and inventevness may be needed. Knowing a breaker for spare parts would be useful. There are quite a few electrical bits on them which are useful when working, but nothing that will stop the machine working if there's a fault. Mechanically well over engineered, standard perkins engine, transmissions mech and hydro are fairly bullet proof, the only time i've been into a gearbox has been to replace a sheared roll pin. never opened a final drive. As for the harvesting side of things, no more than the usual stuff on any combine of that age, check for bearing / shaft wear, belts, rubber bushes, seals and curtains. 1 potential problem area could be the electro/hydraulic header lift valve, if it works fine, if not find someone who knows about them to work on it.
- Location
- Lorette Manitoba
Had one many years ago. Silver cabbed hydro drive. Bought it from a large estate when they went into contract farming. Grain pan under the concaves were rotten and needed replacing. Unlikely still available but a sheet metal fabricator will be able to rig something up if needed. Concave adjuster was seized up to so best make sure it’s moving as the one we had was broken off. Overall a very capable combine. Many many 7&850s and 60s rolled across the prairies and lots still turn out every year in smaller acres.
4440
Member
- Location
- South Suffolk
She’s Number One: Restoring A Massey Ferguson 760 Combine - AGCO FarmLife
Thirty-three years after being left in a wheat field to rot, a trio of farmers revive the first MF760 combine ever built.
myfarmlife.com
- Location
- Lorette Manitoba
Very tidy combine. What engine would be in that. I had a 525 with a 6.354 Perkins in it and the 750 also had same just with a turbo. The 750 was hard to keep cool unless top covers were opened.
- Location
- N.Lincs
It's the 6.354 with a turbo never gets hot though it's only got 1500 engine hours on it
masseybreaker
Member
- Location
- wakefield
give dave pantry a ring he will know where one is hiding
trebornella
Member
750 / 760 combines needed perfectly clean radiators to perform properly. Rotary screen sealing / cyclone filter cone system were not the best, but as long as the whole radiator was clean, not just the circle where the fan drew air through, they were ok.
The gauges on my 565 are very temperamental is that something to do with the oil pressure sender?
trebornella
Member
As far as I can remember (haven't worked on one for 25+ years) the 565 electrics did not rely on the engine oil pressure sender. The gauges were all electrically operated, rather than the manual oil pressure / water temp gauges as fitted to 525/625 machines. You may have connectivity issues where the wiring harness enters the cab, or possibly loose connections behind the gauge panel.
- Location
- hereford
Had a 760 and 865 in the past - very good samples but as said earlier check grain pan for rot and cracks on the shakers. Freeflow header less bother , diesel tanks often full of sludge so extend the tank filter and finally they had a sh!t load of chains for drives - keep plenty of spare and joiners. Non turbo AV8 540 perkins engine sounds lovely flat out - often opened the side window for a fix !!!!!
On my student farm the 760s had the rads blown out every morning. Never overheated or caught fire. They had some kind of tube device that plugged onto the exhaust and used the exhaust to blow.
- Location
- Lorette Manitoba
That’s the secret with most rads is to keep them clean every day. Waiting for them to show signs of over heating isn’t good practice. Neighbour here in Canada had four 860s up until 6-7 years ago. He used mosquito screen which is a fine mesh and covered the round hole behind the cab. With the wind we get here he said he pulled it away while unloading and the chaff was never a problem. The cone and spinning scraper inside was next to useless.