JD4200 w/72"MMM:Lift Problems

[mjncad]

The PB powering your backhoe disables the 3PH lift cylinder and if that mower is somehow lifted with the 3PH, you need to reconnect the PB circuit to send fluid to the rockshaft cylinder.

The factory PB has quick-connects for this.

How much hassle is it to install and remove the 72" MMM from your 4200?

 

[Scotty370]

MJ- It's basically pretty simple! 6-pins total and two hydro hoses! (Oh- Did I tell you that this uses a small hydro-ram to lift the deck?) The biggest PITA is getting it under the tractor and lined up because of it's weight. I can see where the new 'drive-over' decks would be pretty slick. ~Scotty

 

[JohnDeere4300]

Wow, can't imagine using a FEL, MMM and Backhoe at the same time on one machine and certainly wouldn't look forward to mowing with that arrangement.
I much prefer the small L130 to mow the lawn, the 110 for fel and backhoe and the 4520 for most everything else.


Steve

I don't think i would or anyone else would try or can use all at the same time.

If I already had a MMM on my tractor with my FEL & backhoe i would cut my grass....I have two small riding mowers and it takes almost a full day to mow the grass with both mowers running....(Oh, I'm not riding both mowers at the same time. ).... I ride one and i trained my 12 year old son to operate the other.

I don't want a finish mower, because i would have to take the backhoe off, and i like i idea of having all 3 on.

 

[JohnDeere4300]

MJ- It's basically pretty simple! 6-pins total and two hydro hoses! (Oh- Did I tell you that this uses a small hydro-ram to lift the deck?) The biggest PITA is getting it under the tractor and lined up because of it's weight. I can see where the new 'drive-over' decks would be pretty slick. ~Scotty

Scotty,

I'm glad you got lined out and glad you found your parts!

Do you have any pics. of your tractor with all 3 mounted ?

 

[jenkinsph]

I don't think i would or anyone else would try or can use all at the same time.

If I already had a MMM on my tractor with my FEL & backhoe i would cut my grass....I have two small riding mowers and it takes almost a full day to mow the grass with both mowers running....(Oh, I'm not riding both mowers at the same time. ).... I ride one and i trained my 12 year old son to operate the other.

I don't want a finish mower, because i would have to take the backhoe off, and i like i idea of having all 3 on.

Well I meant carrying all three at the same time, seem the added length while mowing would be obtrusive. Lots of mower decks can be damaged if left in place while doing dirt work too. My small mower with 23 hp and 48" deck only has about 2' of overhang on each end allowing me to get in close without tearing up anything.



Steve

 

[JohnDeere4300]

Well I meant carrying all three at the same time, seem the added length while mowing would be obtrusive. Lots of mower decks can be damaged if left in place while doing dirt work too. My small mower with 23 hp and 48" deck only has about 2' of overhang on each end allowing me to get in close without tearing up anything.



Steve

I didn't think you meant using all three at one time... I left that post hoping that a non-member wouldn't try it.

I have a lot of research to do before i buy one, and since it's getting late in the season I'll probably wait till winter to work on it.

(Someone correct me if I'm wrong)...I wouldn't think a MMM would put more stress on a tractor if all three was mounted.

I have also thought about doing dirt-work with one mounted, and wondered how much clearance I would have with the MMM raised all the way up.

 

[CinderSchnauzer]

I have also thought about doing dirt-work with one mounted, and wondered how much clearance I would have with the MMM raised all the way up.

I'm not near my 3320 to measure, but I'd guess ground clearance at 6-8" tops. The other clearance issue is to the sides, especially on the discharge chute side. So far my dirt work has either been straight ahead or directly behind so ground clearance has not been an issue. The MMM comes off for snow work in the winter.

 

[Scotty370]

I didn't mean to get this into a "How many implements can you hang on your CUT contest!" I just thought that JD did a good 'engineering' job, so that one doesn't 'clash' with mounting the others! Now, if you'll excuse me, gotta see how I can fab the BH, to to pull a Box-Blade w/ a Vacuum 'Clipping-Cart' behind it! Front Rotary Brush Hog off the Grapple bucket might be a nice touch.........Hmmmm...............~S

 

[mjncad]

MJ- It's basically pretty simple! 6-pins total and two hydro hoses! (Oh- Did I tell you that this uses a small hydro-ram to lift the deck?) The biggest PITA is getting it under the tractor and lined up because of it's weight. I can see where the new 'drive-over' decks would be pretty slick. ~Scotty

Don't forget connecting the driveshaft!

What you mention about getting it under the tractor and lined up properly is what turned me off to getting one. I think those MMM's weigh in close to 500 pounds; but I could be wrong.

I really wish the new drive-on decks would work with our rigs.

 

[mjncad]

.
I much prefer the small L130 to mow the lawn...

Steve

Steve:

That's my feeling about using my "L"emon 130 for mowing the yard due to its maneuverability; but I'm so torqued off at mine right now that I'm starting to investigate other mowing options.

 

[mfreund]

Don't forget connecting the driveshaft!

What you mention about getting it under the tractor and lined up properly is what turned me off to getting one. I think those MMM's weigh in close to 500 pounds; but I could be wrong.

I really wish the new drive-on decks would work with our rigs.

It only feeeeels like 500. It is really around 360 lbs. Still alot. I have a 4310 with the 72" deck and every time I have it off I think there has to be a better way. I have concerns about the auto-deck, I think I will wait a few years and let someone else be the test dummy.

 

[Scotty370]

MJN_ Oh, That "splinney" thingy? Guess that would help! I'm of the same mind that I'd rather cut lawn with my smaller 318, but when I make the move, I'm going to look real hard at the Z-Turns that people seem to rave about, but doggone they're pricey! ~S

 

[jenkinsph]

It only feeeeels like 500. It is really around 360 lbs. Still alot. I have a 4310 with the 72" deck and every time I have it off I think there has to be a better way. I have concerns about the auto-deck, I think I will wait a few years and let someone else be the test dummy.

When I use to move my large MMM I slid a piano dolly on one side and a hand truck on the other side to roll it in and out. Just make sure you turn the blade away from the hand truck first.


Steve

 

[soulasphil]

I only have a 3520 but I'm one of the test dummies you mentioned and perfectly happy with my drive-on deck.
I have chosen a 60D autoconnect (324 lb) over a 72D (345 lb) and find it already very big and heavy although the tractor handles it easily, I have to lift the plastic chute to drive in and out of the garage. You have to be very careful to place the tractor exactly where it's supposed to be, but then it works exactly as advertised. It certainly makes things much easier.
Ground clearance varies with the type of tires. I have R1s, so the deck is lower, but with an autoconnect device, you do not hesitate to take the deck off and put it back on.

 

[Scotty370]

Very, Very nice unit Philippe! ~S

 

[mfreund]

I only have a 3520 but I'm one of the test dummies you mentioned and perfectly happy with my drive-on deck.
I have chosen a 60D autoconnect (324 lb) over a 72D (345 lb) and find it already very big and heavy although the tractor handles it easily, I have to lift the plastic chute to drive in and out of the garage. You have to be very careful to place the tractor exactly where it's supposed to be, but then it works exactly as advertised. It certainly makes things much easier.
Ground clearance varies with the type of tires. I have R1s, so the deck is lower, but with an autoconnect device, you do not hesitate to take the deck off and put it back on.

That looks very nice!!! I did not mean to offend anyone. I have had trouble with my loader getting connected and thought it would be even harder to connect something UNDER the tractor. I would think you would want a flat piece of concrete to do the connecting on. How does the front connect?

Very nice looking tractor!!

 

[Tritonman]

There will be a cylinder on the left side of the deck as you are sitting on the tractor, with hydraulic hoses that you hook to your rear scv or other hydraulic source. Knob number 43 in the schematic is what you turn to adjust your cutting height.

 

[soulasphil]

No offence taken, I just found the phrase about the dummies funny! Here are a few more details.
No, no concrete slab needed for the connection. The dirt floor in my barn or the grass (I wouldn't really call it a lawn) in my yard will do nicely. The surface musn't be too smooth or the deck might be pushed along when you try to drive over it (four wheel drive anyway).
As for the front, the front link is pushed up by a spring on the left side and gets caught in the two hangers under the front of the tractor. This works whether you have a FEL on or not and with or without a grille guard. Very well thought out IMHO.
Cut height is easily adjusted with the height adjust link on the left side.
I'm no expert as yet and far from the skill of the dealer who demonstrated the system for me, but it's already much quicker and easier than getting an implement on the 3 pt hitch and implies no physical effort.