Mowing 72d belt wear

[Oldtink]

It's need to pivot is is over now that you've made the initial alignment with the stub of the gearbox. TIGHTEN those puppies down and put the Loctite to them. The entire assembly simply needs to slide up and down now in that slot to engage the gearbox and when it does it will be in perfect allignment to slide over the stub of the gearbox.
I used the Blue 242 and it has held for somewhere around 120 mowing hours over the last 3 years.

nch209, I think if I were you, I'd install new carriage bolts if they were loose at all. Then tighten the ***** out of them with Loctite.

 

[nch209]

It's need to pivot is is over now that you've made the initial alignment with the stub of the gearbox. TIGHTEN those puppies down and put the Loctite to them. The entire assembly simply needs to slide up and down now in that slot to engage the gearbox and when it does it will be in perfect allignment to slide over the stub of the gearbox.
I used the Blue 242 and it has held for somewhere around 120 mowing hours over the last 3 years.

nch209, I think if I were you, I'd install new carriage bolts if they were loose at all. Then tighten the ***** out of them with Loctite.

Thanks! I'll need to check it all out again and see what is what. I was under the impression it needed to be able to rotate slightly- but you say no, huh? So in order to align it properly- should I hook up the deck and then replace bolts and loctite and Draw down to ensure alignment is correct?

Thanks for the help! Thanks very much! I was chasing noise on the deck and wasn't smart enough to suspect the carrier.
Nate

 

[Oldtink]

That is correct. The carriage bolts are as tight as you can get them.
The owners manual may seem a little fuzzy on that unless you read a couple more pages. Page 14 says "for initial installation of the mower deck, ensure that the carriage bolts are snug but allow limited pivoting of the PTO coupler"...........but you haint finished yet.. Reading further along to page 16 it states "after the initial installation, tighten the carriage bolts on the PTO coupler"
I might suspect that little tid bit gets over looked at the dealer when they might be rushed because it is a PITA to get a wrench in there let alone actually get some significant torque applied.

If the deck is already on the tractor, drop the deck as low as it will go (wheels free to retract) and snug down the bolt on the right side of the coupler. Then back the tractor off the deck and replace one bolt at a time doing the left side first so as not to rotate the
assembly. Drive back onto the deck and watch the coupler slide smoothly right onto the gearbox stub shaft.

Those two little 1/4 x 20 carriage bolts are all that keep that 2000 RPM PTO rotating smoothly and not turning into a hand grenade and destroying the gearbox someday.

 

[nch209]

^ wonderful reply and explanation. Will be ordering bolts and doing just what you said before my next mow! T H A N K S!!!!!

 

[Oldtink]

I measured the gearbox temp this afternoon after mowing 3.2 hours with a Fluke infrared probe. Ambient air temp was 86F and the probe read 182F. I'd guess it's higher than that. i just don't trust the things even though the gearbox is black.
Case in point. The shiny carrier bearing read 86F. but I couldn't leave my finger on it for a second.