PTO Shaft Adapter 1 3/8 21 female to 1 3/4 20 male

[Tx Jim]

Point taken on self adjusting slip clutch. As has been stated "one learns something ever day". I can't even venture to guess how the JD engineers think that slip clutch is self adjusting.

What has JD representatives had to say about the SC/drive line failures?????????????

 

[greg_g]

Perhaps you chose to assume that there's no maintenance involved with their so-called "self-adjusting slip clutch". Here's an extract from the MX6 owner's manual. There is a specified slip clutch maintenance requirement.

Self-adjusting, debatable. Maintenance free, definitely not.

Unless you next claim you performed this specified maintenance prior to the 1st yoke breaking, I stand by my stated analysis of the evidence you've supplied to date.

//greg//

 

[mchildress]

Point taken on self adjusting slip clutch. As has been stated "one learns something ever day". I can't even venture to guess how the JD engineers think that slip clutch is self adjusting.

What has JD representatives had to say about the SC/drive line failures?????????????

That shouldn't of broke LOL They were taking care of me as far parts at a discounted price but every time you loose a yoke you loose one or two of the u-joint caps and have to replace it too plus your down time waiting on the parts. This mower is 4 yrs old now with close to 2000 hrs on it. This 4th one braking was just the ticket for me to order a larger shaft. Like I said earlier I removed 2 of the clutch pads on the cat 6 clutch leaving three so it will slip when needed.

 

[mchildress]

Perhaps you chose to assume that there's no maintenance involved with their so-called "self-adjusting slip clutch". Here's an extract from the MX6 owner's manual. This is a specified slip clutch maintenance requirement.

Self-adjusting, debatable. Maintenance free, definitely not.

Unless you next claim you performed this specified maintenance prior to the 1st yoke breaking, I stand by my stated analysis of the evidence you've supplied to date.

//greg//

Man I feel like I am on trial here . Like I said above JD calls it a self adjusting clutch and I have replaced the clutch pads in it three times setting it to specs in the first two years of ownership. It really never had time to rust or freeze up. Like said above I believe this drive line and clutch work great on the smaller tractors say up to 45 hp but when you get 50 hp and above it is pushing beyond its limits and stuff brakes. Just my experience somebody that is just a weekend warrior probably wouldn't be a problem.

 

[greg_g]

Man I feel like I am on trial here

Not really. I'm only responding because each successive post tends to support a premise that you're lookin' to blame this issue on anybody/anything - other than yourself. But every time you post a little more info is revealed. So given the fact that you avoided addressing the slip-clutch maintenance point, let's move on.

Yes, in an ideal world the clutch should have protected the yokes. But. Did you ever consider that 65 PTO horsepower might just be a bit much for a six foot mower? I realize that JD only specifies minimum HP requirements for their mowers, but you've more than doubled what they suggest for the MX6

//greg//

 

[greg_g]

Man I feel like I am on trial here

Not really. I'm still responding, because each successive post tends to support the premise that you're lookin' to blame this issue on anybody/anything - other than yourself. But every time you post - a little more info is revealed. Even though you avoided addressing the slip-clutch maintenance point notwithstanding, let's move on to power versus size.

Yes, in an ideal world the clutch should have protected the yokes. But lack of prescribed maintenance aside, did you ever consider that 65 PTO horsepower might just be a bit much for a six foot mower? I realize that JD only specifies minimum HP requirements for their mowers, but your 5420 has more than doubled what they suggest for the MX6

//greg//

 

[Tx Jim]

I realize that JD only specifies minimum HP requirements for their mowers, but you've more than doubled what they suggest for the MX6//greg//

Greg
I'm going to come to the defense of my fellow Texan. Could you please explain where you coming up with "but you've more than doubled what they suggest for the MX6"??????????? JD advertises this in their spec sheet "Center 75 hp (56 kW) continuous / 90 hp (67 kW) peak)?Thank You.

 

[mchildress]

Thanks Jim I really only had a question about a coupler.

Greg I don't have a 5420 and never posted I had a 5420 read the first post.

Greg if it would make you feel any better JD sold me the tractor with the mower as a package.

As far as maintenance that was addressed above also the clutch has to be totally disassembled to replace the clutch disc and set back to spec.

The mower has done an awesome job just in my opinion the drive line is a little on the weak side for a 75 hp gear box.

Greg I see you are a retired Chef from the Navy maybe we can exchange some recipes I have been know to throw a brisket on the pit ever now and then.

 

[greg_g]

Yup, my fault on the PTO hp. I am also talking with a guy in another thread about a 5420. Got tractors and topics turned around in my head, sorry.

To clarify, TractorData lists the 5420 at 65 PTO hp, and the 5320 at 55 PTO hp. Sorry for the mixup. But either way, that's still a lot of ponies for a 6' mower. By way of example, I recently traded a 45hp that easily handled a seven footer, and a 35hp that easily handled a six footer. Having said that, they were geared tractors.

But I'm willing to cut some slack if that 5320 has a hydrostatic tranny. My 3710 has the eHydro, and doesn't handle either above mower as well as the geared tractors did

//greg//

 

[Tx Jim]

Greg
Being a former JD dealer employee I'll explain what JD means when they state minimum HP in the spec's. That is the bare minimum HP tractor that the engineers think can handle the 6ft mower. It has nothing to do with maximum hp that the mower can handle. The mower has a 75hp gearbox so it should handle a 75 pto hp tractor with no problems.