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Xmark 72in deck HELP

#1

T

twoskinny

We have 4 xmark's
1- 2001, 2- 2010, 1-2019.
All have 72 in mowing decks. My issue is on the 2019 we keep breaking a pully bolt on the stationary pully (pully idler, flat) on the right side of the mower deck as you are sitting in the seat. None of the older mowers are having this issue. We replaced the bolt twice, with in two days. Down for parts then the pully and new bolt end of seaon. And now it broke again, second mow of the season. Any HELP would be much appreciated


#2

B

bertsmobile1

Go for a higher tensile bolt
Wack a grade 9 in there and see if it helps .


#3

T

twoskinny

bertsmobile1 said:
Go for a higher tensile bolt
Wack a grade 9 in there and see if it helps .
Click to expand...
Will do thanks


#4

S

slomo

Um something obviously is causing a bolt to shear. I would investigate why first prior to say installing a bigger fuse in the electrical world. Maybe you got a run of bad bolts? Never heard of that one yet.


#5

L

lil SIG

slomo said:
Um something obviously is causing a bolt to shear. I would investigate why first prior to say installing a bigger fuse in the electrical world. Maybe you got a run of bad bolts? Never heard of that one yet.
Click to expand...
Agreed one bolt, hummm. Multiple bolts, NOPE. There is an undo amount of stress on the bolt. That means there is more stress on the system. Something is out of spec, and it shouldn't be a in production bolt.

Remove your belts and start spinning things by hand and look for bent out of alignment brackets.


#6

B

boatmoter

twoskinny said:
We have 4 xmark's
1- 2001, 2- 2010, 1-2019.
All have 72 in mowing decks. My issue is on the 2019 we keep breaking a pully bolt on the stationary pully (pully idler, flat) on the right side of the mower deck as you are sitting in the seat. None of the older mowers are having this issue. We replaced the bolt twice, with in two days. Down for parts then the pully and new bolt end of seaon. And now it broke again, second mow of the season. Any HELP would be much appreciated
Click to expand...
if it were mine I would put like a grade #5 bolt in it,hardened


#7

S

slomo

lil SIG said:
Agreed one bolt, hummm. Multiple bolts, NOPE. There is an undo amount of stress on the bolt. That means there is more stress on the system. Something is out of spec, and it shouldn't be a in production bolt.

Remove your belts and start spinning things by hand and look for bent out of alignment brackets.
Click to expand...
Unbalanced blades. People using high speed grinders trying to sharpen blades up.


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