"I will not repeat the material from prior versions of this review. In summary, it was a disaster with just about every major system on the tractor having some issue when brand new (except the flawless Perkins diesel). It took three years to get what I hope were all the bugs out. Since mid 2014, and roughly the last 100 hours, it has finally become the tractor it should have been out of the gate. All current items I consider "normal" care and feeding. Provided it stays reliable, I now consider it a great tractor; one you would keep for a generation. "

"7/11/12 Since the prior review and one update in 2011: (See prior reviews for earlier problems, since corrected) - At 87 hours in May 2012, the clutch failed completely. I am reasonably sure this was due to the machine having been delivered on day one (April 2011) with a bent clutch pedal arm which conflicted with the console and prevented the clutch from ever fully engaging. At 25 hrs or so that was discovered and the dealer straightened the pedal arm as well as repaired the shuttle shifter linkage. The clutch continued to slip at times and failed totally in May 2012. The clutch was replaced (which, as most know, involves breaking the tractor down in half) in early June 2012. Seems to be okay now at 101 hrs. - At 87 hrs the shuttle shifter lever was going way beyond normal travel and behaving erratically. A roll pin was found partially sheared and was replaced by the dealer. At 101 hrs it operates correctly (maybe for the first time during ownership) and behaves with apparent normalcy. - Having had so many other problems, the fact that the DL250 loader would not force the bucket tip downward by rightward joystick movement had been ignored. In May 2012, I find out that the loader is only guaranteed 1yr. unlike the tractor and has just gone out of warranty. In June 2012, the loader valve was replaced by the dealer and had no effect on the failure to force bucket tip down. Pressure tests confirmed that the problem is in the loader valve body, not the cylinders, yet a new valve body changed nothing. Dealer adjustments achieved slow movement and bucket tip down force only by forcing the joystick hard right into what was advertised to be “quick unload” or gravity drop position. The problem is still unresolved. Another 2660HD was tested and the DL250 on that machine operates properly (or apparently properly since what is “right” on these machines is very illusive). In summary, at 101 hrs. (14 mos. into ownership) all known major problems have finally been corrected except for the odd control problem on the DL250 loader. User Comment: The MF2660 low-profile 4WD performs extremely well on steep ground after brakes were upgraded and fuel starvation issues solved. The center of gravity is nice and low and the wheel separations are about ideal as mounted, with the rears 8’ apart at outer edges. Traction is excellent and power is great. The Perkins engine seems to be a strong point. Having the 8x8 transmission, I would prefer more gear choices close to the hi/lo range shift point. Far too often one is having to stop and shift ranges because the shift point is right at the comfortable operating gearing level when doing brush hog work and pasture clipping. Since the Range shift is not synchronized this is a nuisance. Possibly the 12x12 or some other variant would be better but that does NOT necessarily improve things if the gear ratio at the lo/hi shift point is unchanged. In my opinion the shuttle shifter mechanism is a marginal design prone to failure. Factory quality control prior to shipping is/was apparently terrible considering the initial problems with this brand new tractor. I am optimistic that this will be a great tractor once all the initial problems are fixed. Long-term reliability is the main question now. "

"This amends my posting of 06/03/2011. Having had my machine at a dealer for 56 days all but one of the major problems listed in the review (that could be fixed) have been corrected. - Inadequate brakes: Were retrofitted with a set of 5th disks and the left/right equalizer removed. The machine can now be held solidly on a 50% slope in 4WD. In my opinion the pedal pressure required is too high but now at least one can hold it there. Five disc brakes are adequate. I am very puzzled as to why they ever make 3 or 4 disc systems. - The parking brake remains nearly useless. Poor design. It won't hold on much of a slope and if you pull it up hard it will take Charles Atlas to get it loose. This is simply a poor design choice. - Engine starves for fuel on steep slopes: This problem was corrected with a new pickup in the tank. Indications are that the company will come out with a "product improvement" in this area. - NO CHANGE: 3 pt. lift control sensitivity is not right. Less than an inch of control lever travel (less than a full number on the scale) raises a model 297 Bush Hog all the way from the ground to as high as you can raise it (which is marginal and not high enough.) This problem remains and was not correctable by the dealer.It cannot be "adjusted out." I will conduct a test in the near future to determine if this relates just to Low Profile 2600 series or is also a problem with the full height 2650/2660 tractors. - The clutch pedal arm was bent (out of sight, in side the console) apparently during manufacturing or shipment. Once straightened, the severe clutch and shuttle problems were cured. - New Problems (relatively minor compared to the above) include: + Transmission oil pressure red light mostly "ON" is believed to be a sensor. Known to be just the sensor on another 2660. + Digital Hour meter/PTO rpm meter dies after the machine gets hot in use. May be temperature (?) May require replacing at least one more sensor. Note: Maneuverability is much more limited than tractors with bevel gear front wheel drive (such as high end compact tractors.) This limitation on turn radius stems from outer front universal joints common to most larger tractors. In Summary: The first 48 hrs have been rough. These 2650/60/70/80 tractors look beautiful on paper. My 2660 has plenty of power, very likable size and being a low profile has a low cg for steep land. Great looking machine. The quality control is terrible from the factory. Outrageous really. My advice to buyers remains: To look VERY carefully and test every feature before you take delivery! If the problems are corrected I still think it will be a great machine. "

"This tractor was purchased to replace a smaller JD4700. It is 4wd, fluid filled 18.4x26 rear tires. This brand new tractor is simply a disaster so far. I certainly hope and believe it will be "fixed" as Massey has agreed to do. However the initial experience has been as follows: - Brakes are inadequate. Will not completely prevent tire roll on a 40% grade. Nearly all MF 2600 series are delivered with "4 disk" systems. They say in the manual they make 3,4 and 5. Mine will be retrofitted with a set of 5th disks. Other 2600 HD series owners report the same problem. Mine is side by side at the hospital with another 2660 having the 5th disk set added. - The parking brake is nearly useless. Poor design. It won't hold on much of a slope and if you pull it up hard it will take Charles Atlas to get it loose. - Engine starves for fuel and dies on a 40% grade with 1/3 tank of fuel. The pickup in the tank is high and dry at that point. This goes great with marginal brakes. - 3 pt. lift control sensitivity is not right. Less than an inch of control lever travel (less than a full number on the scale) raises a model 297 Bush Hog all the way from the ground to as high as you can raise it (which is marginal and not high enough.) - The clutch pedal arm interferred with the plastic console as delivered and was never fully engaging. The clutch slipped under higher loads (e.g. uphill with 7ft bush hog) and was smelling but no one knew why. At 29 hours the clutch problem was finally discovered by the owner. (Pulled up the pedal and the thing leaps up the hill.) - At 29.7 hrs the shuttle control failed and the machine could no longer be moved forward. It is possible that the clutch pedal problem led to the shuttle problem due to safety interlocks. Do not know yet what may have come loose. - The machine is currently in the Massey hospital. - The hydraulic pump capacity (even with the combiner valve) is marginal in running a low-flow front cutter with a hydraulic motor. - Remote hydraulics have a completely one-track mind: e.g. you cannot raise or tilt the front end loader while doing anything else with the remotes (such as running a hydraulic motor.) In Summary: these 2650/60/70/80 tractors look beautiful on paper. My 2660 has plenty of power, very likable size and low cg for steep land. Great looking machine. The quality control is terrible in this sample. Outrageous really. I hope MF will correct the problems but my advice to buyers is look VERY carefully and test every feature before you take delivery! If the problems are corrected I still think it will be a great machine. Note: In 10 years owning the John Deere 4700 I had exactly one problem -- the interlock switch between the forward/reverse lever and the starting circuit was designed by idiots, but the Deere problems can be counted on that one finger. You see above what I found with a MF2660. I predict Massey will not be in business 5 years from now unless they get quality control under control."