John Deere 425: 60' Deck... Too Big?

Just a few thoughts on installing a 60" deck on a 425....

[erickamox]

I also have a 425 with 60 inch deck and it’s a beast never kills the motor you can bush hog with it 1100 hr on it👍

[rtmdlawncare]

My 425 has absolutely no issues with the 60 deck. No stall unless it’s a cold start and no warm up. But no issues cutting or running the deck. Cuts beautiful

[RyanTitcomb]

My 1998 425 has just over 1300hrs on it and has no trouble with running the 60" deck and a kubota power bagger I run on the rear PTO at the same time. Bump the choke up just a touch and will get it going without much fuss when cold.

[russyo]

This made me hook my Tac up to my 445. Full throttle rpm 3530-3540. Engaging 60 inch deck with power flow drops to around 2990 rpm average and recovers to 3380 rpm after about a second a and doesn’t shift more than 60 rpm while mowing under normal conditions. Driving fast will drag the rpm a bit more. My tack is electronic and has a slight lag, but I’m pretty confident in my results.
Very strong deck. I’ve never overwhelmed the deck but I have made the power flow choke and cough picking up leaves before.

[PhatboyHD]

Buddy you are so right, , i have a 48” deck on my 317 and i start the deck at a complete “Idol” and it barley changes the rpm’s, , the opposed twins have so much more in low end torque in my opinion, , and yea i know there is a big difference between my deck and that one..but i am sure it would spin it up with no problem..

[caseymcshane]

I have a 95 425 aws that began life with a 54" deck. When that deck needed rebuilding i decided to buy a 60". Basically the same set up as shown here. I have found that it only stalls when the temp is below 60 degees here in MN. Usually i can start it up drive out onto the grass and go. It will pull the motor down a bit but doesnt seem to have problems keeping up while mowing. It will pull in thick heavy grass when cutting 6 or more inches. (All clay soil, so have to wait for it to dry to mow.)
Below 60 degrees what works for me is to feather the choke and it starts right up. And this only happens during the inital start up not at any other time and only with the mower deck. 47 snow blower and 60 broom have no problems at any temp.
I need to find a good frame to make a template of the front hitch mount as mine is worn and needs to be filled in with weld. Deere says they have no such template but could locate a new frame. Lol
Thanks for the videos.

[shanesmaineshop]

I will be testing my 60" out on the JD400 for the first time very soon. thanks for sharing this video.

[wintermachine]

My 425 can mow 12" grass with the mower going as fast as it can go. My body won't take it. I have no shield on the deck. The motor I rebuilt 2 seasons ago so it is fresh and strong. the bottom of the deck is painted with gray POR-15, (also the top under the shields) I engage the deck just above idle and tweak the choke as I do this. Once it is fully warmed up i don't use any choke.

[tomrugger]

Start the deck while moving forward. Works

[ChannelWagner]

When is freezing out any deck gets harder to start, belts gets harder, spindles freezes. My craftsman 26hp does the same on winter but engages on idle during the summer

[jeremylee]

I have a 425 and I found if I’m moving and kick the deck on it takes right off first time every time

[MichaelTJD]

My X570 does the same thing, it won't stall out in the middle of summer when it's good and hot outside. The Kawasaki engines just don't seem to make low-end torque.

[kevinc]

I have a Simplicity with a 12.5 HP opposed Briggs and the idle barely even changes when I engage at a complete idle which is like 1300rpm. It has a fully governed idle which I guess helps.

[alexmydosh]

My 425 does the same thing regardless of outside temperature..I found if I'm moving the tractor forward while engaging the pto it is able to get the deck running much easier...

[Something]

My 425 starts the 60” perfectly in all seasons here in Minnesota.

[vylet]

We have a 425 with a 54” and the only thing that happens is the belt slips, but that’s because of the shear amount of grass that gets under the pulleys so. After cleaning it out it never fails

[collinzappa]

My 445 doesn't have any trouble even at a little above idle. Try taking the PTO shaft off and spin it by hand to see how stiff it is.

[robertcooper]

Everything stiff when it's cold I hope it's not too big some putting a 60-inch on my 425

[zacharybrown]

hey keep up the great videos. I just had one quick question about a 425 had you ever tried to put a john deere cat 1 three point hitch on one I know you can get a cat 0 but the back end looks the same as X7??. any feed back would be great thanks

[hgboone]

You need to consider playing with your switch. Flip it on and immediately Flip It Off and then flip it back on hopefully the engine will not die the nursery will be broke and the engine will carry the load.