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John Deere MOD Deck

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13K views 40 replies 6 participants last post by  Nwatson99  
#1 ·
First off apologies to southerntide, did not mean to roll into your topic and start blabbing about the MOD Deck issue.

RG I have opened this topic open for everyone to talk about the MOD deck.

Anyway I have a 2014 Z960R with the MOD deck, the deck works great while trimming around home, driveway, flower beds, etc. and like I have already stated this would be a great machine for residential use where you cannot open up the machine to full potential and more mulching type application, but when you get out into open lawns and let the machine eat mowing like it should there are too many uncut stragglers and small areas of grass.
I use to be in engineering before my injury and I have studied this deck several times in the past three weeks and determined the baffling system is too tight thus not generating the proper vacuum and air flow like the 7 Iron Pro decks generate to make a clean cut.
Watching a JD tech mowing with it this morning, you cannot see the grass sucking up into the MOD deck around the edges like you can with a 7 Iron Pro deck, I do have my old Z930A back to keep until my machine is fixed and my cut will be back to what I am have been custom to for the last 4 years.
 
#2 ·
No apology need man glad to have you come on board in my thread. I have been following the issues and researching on the MODS myself my dealer did not like them or recommend them, before I could get a word out about the issues lol.
 
#3 ·
No apology need man glad to have you come on board in my thread. I have been following the issues and researching on the MODS myself my dealer did not like them or recommend them, before I could get a word out about the issues lol.
Well like I said unless they engineer them correctly I am done with the MOD deck for my application of mowing, but I am just afraid I am going to have to play the game with numerous decks to get my Pro Deck back, but if they fix the design on it then hey I am more than happy to have a properly working MOD deck.
 
#4 ·
Well like I said unless they engineer them correctly I am done with the MOD deck for my application of mowing, but I am just afraid I am going to have to play the game with numerous decks to get my Pro Deck back, but if they fix the design on it then hey I am more than happy to have a properly working MOD deck.
Yeah it seemed a little rushed maybe in trials like the Xfactors from Gravely till they fixed them with the XF2 decks with adjustable baffles or remove completely.

The XF1 sucks discharge is terrible chute opening is way to little.

This is what brought me to buying a Deere crap of a dealer and after all the stuff that we went through from him trying to scapegoat me in a 2012 crap deck as a 2014 model full MSRP the discount offered for the trouble I still came out with abetter deal from my JD dealer :cool2:

http://www.lawnsite.com/showthread.php?t=426148
 
#5 ·
Hey bro, if you do a search on here, you'll find a ton of recent threads or posts about these MOD decks by me and several other guys. I have been posting since back in 2012 that the deck is too tightly baffled, and have tried to steer guys away from making the same mistake I did when I bought it. A couiple of guys went ahead and are happy, but they live down in the deep south where the grass is stiff and easy to cut. Up here where we are though, this deck flat sucks, and it costs me money having to double cut everything all the time. Even then I am getting a lot of stragglers and places where it skips altogether when the grass is a little long. I recently posted pics of the problems in one of these threads.

http://www.lawnsite.com/showthread.php?t=426258

http://www.lawnsite.com/showthread.php?t=426767
 
#8 ·
G6's don't work worth a hoot with the MOD. They cause a lot more blowout than the OEM high lifts do, and don't cut as cleanly here in the north. The G6's work excellent under the Pro deck though. The OEM wavy mulchers work the best under the MOD in most situations. They reduce the blowout considerably, and will still side discharge very well. On stiff southern grass they will probably do very well for you (the wavy mulchers that is).
 
#9 ·
G6's don't work worth a hoot with the MOD. They cause a lot more blowout than the OEM high lifts do, and don't cut as cleanly here in the north. The G6's work excellent under the Pro deck though. The OEM wavy mulchers work the best under the MOD in most situations. They reduce the blowout considerably, and will still side discharge very well. On stiff southern grass they will probably do very well for you (the wavy mulchers that is).
I have ran TCU 15881 and TCU 18990 blades on my deck and results were the same.
I read the two topics thanks for posting them, but I just figured it was best not to infringe on someone's topic and hope I did not break any rules here with my topic, but you and everyone else can jump right in here about MOD problems they are having and I will keep everyone updated on my situation.

RG when are you expecting your 7 Iron Pro deck in and do you already have the deck belt since the belt on the MOD deck won't work?
 
#10 ·
I have ran TCU 15881 and TCU 18990 blades on my deck and results were the same.
I read the two topics thanks for posting them, but I just figured it was best not to infringe on someone's topic and hope I did not break any rules here with my topic, but you and everyone else can jump right in here about MOD problems they are having and I will keep everyone updated on my situation.

RG when are you expecting your 7 Iron Pro deck in and do you already have the deck belt since the belt on the MOD deck won't work?
The shell is supposed to be here tomorrow. According to JD parts, the only thing that is different is the shell. All else is the same including the belt part #'s. I have the print outs right here. The two different belts are for machines before 20,000 and after. The belts for both deck types before and after the serial number break are the same in each style deck shell-

"Part # 21- TCU26297 V-Belt 1 - 020000
TCU29454 V-Belt 1 020001 -
"

This is the part number for the OEM wavy mulcher blades- "M168223; MULCH"
 
#11 ·
The shell is supposed to be here tomorrow. According to JD parts, the only thing that is different is the shell. All else is the same including the belt part #'s. I have the print outs right here. The two different belts are for machines before 20,000 and after. Both the belts for after that serial number are the same-

"Part # 21- TCU26297 V-Belt 1 - 020000
TCU29454 V-Belt 1 020001 -
"

This is the part number for the OEM wavy mulcher blades- "M168223; MULCH"
Well that is good, I know my deck belts from the 930A Pro to 960R MOD were different and my dealer exchanged them for me since I had a deck belt for the 930A.
I look forward to seeing the change out, DO NOT forget the camera. LOL
 
#12 ·
I went though the troubles of the MOD deck, and thanks to Ridins' help I was able to get them switched out before my satisfaction guarantee ran out. I am extremely happy with my 60" Pro decks. I added grass flaps to my mowers and will be posting a review of them once I get some time in and time to post it. So far they're working pretty good though.
 
#13 ·
I looked at the Grass Flaps today online actually. I like the mechanical design and function of them, but the thoughts of drilling holes in a deck makes me cringe a bit.
Did you have to drill holes and did you have to use those spacers?
 
#14 ·
I went though the troubles of the MOD deck, and thanks to Ridins' help I was able to get them switched out before my satisfaction guarantee ran out. I am extremely happy with my 60" Pro decks. I added grass flaps to my mowers and will be posting a review of them once I get some time in and time to post it. So far they're working pretty good though.
What OCDC did you put on them the Deere one's or aftermarket?

Link please?

I was told $700 but that is just crazy but Deere stuff is expensive but high quality none the less.

Ridin said he has never heard of them for Pro decks but he "dealer" said they could be put on my 7 Iron Pro
 
#15 ·
Here's the link http://www.grassflap.com/Mower_specific.html

I had to use the L brackets that came with the grass flap unit. I had to drill the front square hole out a little bigger than 3/8" then marked the rear bracket and drill a new hole for it. All the drilling is done on the vertical spine bar that is going from front to back on the discharge side of the deck. The instructions were not very helpful at all.
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#17 ·
Here's the link http://www.grassflap.com/Mower_specific.html

I had to use the L brackets that came with the grass flap unit. I had to drill the front square hole out a little bigger than 3/8" then marked the rear bracket and drill a new hole for it. All the drilling is done on the vertical spine bar that is going from front to back on the discharge side of the deck. The instructions were not very helpful at all.
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Not much on drilling holes in anew machine I will be trading in every so often for resale value purposes.

Good price though, actually looked those the other day I want a manual one, that fits as is.
 
#18 ·
What OCDC did you put on them the Deere one's or aftermarket?

Link please?

I was told $700 but that is just crazy but Deere stuff is expensive but high quality none the less.

Ridin said he has never heard of them for Pro decks but he "dealer" said they could be put on my 7 Iron Pro
That's because they don't exist

If you pay $700 for an ocdc that's ridiculous
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#19 ·
That's because they don't exist

If you pay $700 for an ocdc that's ridiculous
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Not had time to go ask about what he was talking about that day, maybe he priced off the whole damn mulching system
 
#20 ·
Here's the link http://www.grassflap.com/Mower_specific.html

I had to use the L brackets that came with the grass flap unit. I had to drill the front square hole out a little bigger than 3/8" then marked the rear bracket and drill a new hole for it. All the drilling is done on the vertical spine bar that is going from front to back on the discharge side of the deck. The instructions were not very helpful at all.
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Well that done it right there, they have a KY phone number maybe they are close enough where I could help them fix their bracket where they are not so lazy just using a generic bracket for all which requires drilling on our decks.

I'm actually thinking of replacing the deck kill switch on the right handle with a three position switch and tapping into my deck lift pump to control a hydraulic cylinder to open and close the OCDC. that may be a winter project though as I'm far to busy to do that right now.
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I would not do this or think about it to be honest, you are adding two more hydraulic lines you must route to make sure nothing will harm them, deck belt, deck up and down, traveling while deck going up and down.
Then solenoid, valve, wiring, couplings to the existing hydraulic system, more fluid added, etc.

Have you considered the foot switch and little electric motor?
I am thinking about this one. Powerchute
Working videos of unit.
 
#21 ·
I spoke with powerchute after my post and instead of drilling our decks we drill their brackets on the 7 Iron decks and still use the carriage bolts "they provide" and square carriage bolt holes in our decks for mounting their product.
Southerntide this might be the best option for you with your lease that way your deck is unaltered.
 
#22 ·
That's because they don't exist

If you pay $700 for an ocdc that's ridiculous
Posted via Mobile Device
Just got back from there had to run to town like I told you that was severe warnings when I bought it and hailing. He said he got confused because all the stuff happening doors were sucking open and stuff.

Someone brought a aftermarket there a few times to be installed he said didn't remember the brands but they had to drill in the decks.

Now that is settled :hammerhead:

I spoke with powerchute after my post and instead of drilling our decks we drill their brackets on the 7 Iron decks and still use the carriage bolts "they provide" and square carriage bolt holes in our decks for mounting their product.
Southerntide this might be the best option for you with your lease that way your deck is unaltered.
Would love one of those only manual operated though don't want no cheap motors breaking down all the time, I'm tired of hydro lifts and all that just get to spoiled with it.

He doesn't supply any of them without motors right? I know their just cheap car window motors but still like manual lever.
 
#23 ·
Would love one of those only manual operated though don't want no cheap motors breaking down all the time, I'm tired of hydro lifts and all that just get to spoiled with it.

He doesn't supply any of them without motors right? I know their just cheap car window motors but still like manual lever.
Well the owner of Grass Flap called me back and after our conversation and a few ideas I offered him, he is going to design a bracket for his unit for our JD decks that will eliminate the drilling out of any holes or holes period.
 
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#24 ·
Sounds good did he mention a ETA on when it might be out?

From powerchute, he said you still have to drill in for their bracket correct?

They need to include more detailed info on their sites, especially larger and more angled pictures. I hate HMTL or site builder sites like that ughhh.

I need one badly like now may just punch the dot and get a powerchute getting to many close to highway jobs get sick of turning PTO on and off waiting for people to go by, out here where I am we have pine cones everywhere, large nuts, sticks constantly impossible to fully cleanup because storms all the time and winds just keeps them falling.

Thanks for taking the time to make contact with them!
 
#25 ·
I will be honest, I don't know if i have my grass flap mounted correctly or not lol. it looks like I have it mounted right but there were absolutely no machine specific instructions. H3ll there weren't any specifics as to mounting to a machine at all. Only a vague description of how to assemble the grass flap itself. I do like the grass flap more than the power chute. I had to replace 3 motors on my power chute in one season. The grass flap plate is much thicker and heavier built than the power chute. So far I am pleased with the results.... Not so pleased with instructions though.
 
#26 ·
Well I got an update from my dealer about the MOD deck.
The dealer opened a D Tech or D Tact case I think that is what he called it with JD, they sent all the info to JD what I had sent to them about the deck pitching and different JD blades I have tried to make the deck cut better, also they sent in my comments to JD about how to fix the MOD deck's baffling system so they will work right.
The dealer also sent in the statement the comments from the mechanic that picked up my mower and mowed with it in my front yard before he left with it.
John Deere has asked the dealer to set the deck up from some paperwork JD sent the dealer which the deck is set up per the instructions now, but the dealer is unable to test it due to the rain we have had for the past two days.
JD also asked the dealer to make passes with the mower, take photos while mowing and submit to the photos on this case.
Dealer and I spoke today about this and I told them if they cannot get the MOD deck to perform like the 7 Iron Pro deck, then I expect a new 7 Iron Pro deck installed on my machine and refund me the difference between the prices of the two deck or a brand new 960R with the 7 Iron Pro Deck from factory with the difference refunded.

My dealership and employees are good people, the owner informed me they will make it right and to my satisfaction, but to give them a little time and play the jump through hoops game.
My dealer even brought me my old 930A to use while the 960R is in their shop, which I think that is a heck of a good gesture on their part to do.

If anyone in Central, Northern KY or Southern Ohio are considering a JD product, then I recommend Cahall Bros in Flemingsburg Ky, they had the best pricing and their service is outstanding.