Disc Harrow Massey #25 Disc

[jeff9366]

Least all my info comes from tens of thousands of hours of actual use and not from books and literature quoted over and over.

I am happy for you.

I am sure some of your experience passed on to the OP would be useful to him. The OP is interested in sizing a Disc Harrow....

 

[missesalot]

Thanks all who responded, I believe I have the info I need.

 

[rangerfredbob]

This is good information, conveniently I just got a 6' MF Model 25 in January and have a 26hp tractor (around 4000lb, loaded tires, loader, etc), haven't used the disc yet since it needs a couple pivot point pins repaired but it was cheap...

 

[jeff9366]

I found what I believe to be a Massey #25 disc.

Would this be a good match to my NH TC45d hydrostatic?

New Holland TC45

2001 - 2003 Boomer TC Series
Compact Utility tractor
Next model: New Holland TC45A

Manufacturer: New HollandVariants:
TC45: base model
TC45D: deluxe

New Holland TC45 Engine:
Shibaura 2.2L 4-cyl diesel
New Holland TC45 Power:
Engine (gross): 45 hp [33.6 kW]
Gear PTO (claimed): 39.6 hp [29.5 kW]
Hydro PTO (claimed): 37.8 hp [28.2 kW]

Capacity:
Fuel: 13 gal [49.2 L]

3-Point Hitch:
Rear Type: 1
Rear lift (at 24"/610mm): 2330 lbs [1056 kg]

Power Take-off (PTO):
Rear PTO: independent
Rear RPM: 540

Dimensions
TC45 2WD Weight (shipping): 3,200 lbs [1451 kg]
TC45 4WD Weight (shipping): 3,349 lbs [1519 kg]
TC45D 4WD Weight (shipping): 3,417 lbs [1549 kg]
TC45D SuperSteer Weight (shipping): 3,586 lbs [1626 kg]
Wheelbase: 73.5 inches [186 cm]
SuperSteer Wheelbase: 81 inches [205 cm]
Length: 125.2 inches [318 cm]
SuperSteer Length: 129.6 inches [329 cm]
Width: 61.3 inches [155 cm]
Height (ROPS): 95 inches [241 cm]
Ground clearance: 14 inches [35 cm]
Front tread: 46.4 inches [117 cm]
Rear tread: 47.5 inches [120 cm]

Mechanical:
Chassis: 4x2 2WD
4x4 MFWD 4WD
Steering: hydrostatic power
Cab: Two-post ROPS.

Hydraulics:
Pump flow: 9.8 gpm [37.1 lpm]
Total flow: 14.9 gpm [56.4 lpm]
Steering flow: 5.1 gpm [19.3 lpm]


What diameter are the pans and what is the pan spacing?

If your MF TC45d has 4-WD it should pull an 8' width disc with 18" diameter pans fine.
18" pan diameter has about 37 pounds bearing on each disc.

The eight foot width with 20" diameter pans may be too much.
20" diameter pans has about 52 pounds bearing on each disc.

Your TC25d may run out of traction/power with gang angles set aggessively or on second pass when soil is soft. Border line case.


The eight foot width with 22" diameter pans -- too much.


7" pan spacing has more float than deeper penetration 9" pan spacing.

Big differences in draft force resistance.

Bear in mind that I do not know your exact conditions.



Your tractor weight and width is the same as my Kubota L3560.

Tire width is probably 64". So two disc widths choices are 72" and 84". 84" disc is 17% wider/heavier than 72" disc and will require about 17% greater tractor traction and power to pull with all pan diameters and all and pan spacing.

I'm kicking myself for not taking pictures of disc when I was there. I believe it's 9" spacing and 18"diameter pans. Thanks for your help. As far as weight goes, does leaving the loader and grapple on the front increase weight in a useful way relative to pulling a disc through soil?

FEL certainly increases tractor total weight, but FEL acts as counterbalance to your loaded rear tires, so combination when pulling a disc harrow may be neutral or somewhat helpful.

I remove my bucket for forward visibility when harrowing for an hour or two. I remove the entire FEL for forward visibility if I anticipate harrowing four hours or more.

 

[downslope]

These disks, either model #22 or #25 were excellent machine's in their day and do a very good job. They usually came with 18" disks.
OP, how many blades on each axle, 6 or 7 for total of 24>>28? Either way your TC 45 4WD with loaded tires should have no problem with it. If it's not too much problem I woild prefer to work with FEL removed.

Now here is the big caveat: I believe the OP mentioned possible bearing problem(s). This can be a deal breaker as the parts are no longer available either OEM or after market, and if you can find OEM they are VERY expensive. $1,000 is top price for these disks. For that money I would want one ready to work in the field, not ready to work on impossible to find bearings.

 

[downslope]

I have a model 22, and love it. I believe the only differenceis, the 22 has wooden axle bearings, and the 25 cast iron type. Gangsare easily adjusted for angle of cut with the levers. Nice for going full cut for the first pass over, then straighten to preferred angle for the finish pass. Sure beats removing bolts to change the angle of cut.

Seems a bit high to me, especially needing a new bearing. We always figured 20% mark up at dealers for profit, and I'm guessing you checked dealer prices.

I'd hate to offer him $800 in greenbacks, and not really want it. Cash is still king. Although, the factor of the easy adjustment is worth something.

Early model 22 had wooden bearing, later 22 (AB-022 actually) and 25 had cast. I have a 22 with cast white metal. 22's were marketed as Ferguson, 25's were Massey-Ferguson. There are subtle differences, I believe the 22's were 6.5" spacing and the 25's 7.25 inch.
There were also early and late versions of the 25. One way to tell is how the scrapers mount. The early ones had the scrapers bolted to an inverted U-channel, the later used angle iron mount.

 

[mf1752]

These disks, either model #22 or #25 were excellent machine's in their day and do a very good job. They usually came with 18" disks.
OP, how many blades on each axle, 6 or 7 for total of 24>>28? Either way your TC 45 4WD with loaded tires should have no problem with it. If it's not too much problem I woild prefer to work with FEL removed.

Now here is the big caveat: I believe the OP mentioned possible bearing problem(s). This can be a deal breaker as the parts are no longer available either OEM or after market, and if you can find OEM they are VERY expensive. $1,000 is top price for these disks. For that money I would want one ready to work in the field, not ready to work on impossible to find bearings.

I have good oem bearings for the Massey Ferguson model 25 discs from salvage. Phone 816-277-4968