Register free!

The Green Industry's Resource Center


 
 
Thread Tools   Display Modes
  #1  
Old 10-15-2012, 09:46 PM
Mack77 Mack77 is offline
LawnSite Member
 
Join Date: May 2005
Location: NJ
Posts: 208
Super Z Drive belt keeps snapping

2008 Super Z, 31HP/60" cut keeps snapping the hydro drive belt. I'm on my 3rd belt of the season. Why is this happening?? How can this be fixed?
  #2  
Old 10-15-2012, 09:51 PM
hustlermidwest hustlermidwest is offline
LawnSite Senior Member
 
Join Date: Sep 2012
Location: Chicago, Ill
Posts: 636
Mack77,
When you say snapping you are referring a clean break or is there wear from a foreign object and then it breaks. 3 belts in a season, something ain't Kosher. Is there anything in common that you are doing prior to breakage? Before I go any further I need to know what the ends of the belt looks like and that will send me down a path.

Brian O
  #3  
Old 10-16-2012, 08:55 AM
Mack77 Mack77 is offline
LawnSite Member
 
Join Date: May 2005
Location: NJ
Posts: 208
Brian -

It's a clean break. It happens out of no where, for example yesterday I was mowing a straight 1 acre piece of property at speed, then all of a sudden the machine loses momentum and coasts to a stop. No sticks, rocks, or debris.

Attached are pictures of the belt, and the break.

Thanks!
Attached Images
     
  #4  
Old 10-16-2012, 12:09 PM
hustlermidwest hustlermidwest is offline
LawnSite Senior Member
 
Join Date: Sep 2012
Location: Chicago, Ill
Posts: 636
Mack,
Perfect photo's. The reason I asked to see them because how they break normally tells a story. If they were shredded and ripped I would look for debris in the pulley, these show a clean cut. This tells me that a jerking motion, a quick pull caused the belt to break. I mostly see this with deck belts when you strike something, and not so often in drive. Normally when this happens to the drive I first look the idler arm and make sure it's free moving. Belt needs to be off to do this. I also grease the pivot point at this time. If all is well, the next thing would be the spring. If it's weak it will allow the idler arm to move back and forth as resistance in the drive changes working like a whip. I believe that is the cause of your issue but first check the arm.

Brian O
  #5  
Old 10-17-2012, 05:40 PM
RiggitanoLandscape's Avatar
RiggitanoLandscape RiggitanoLandscape is offline
LawnSite Member
 
Join Date: Feb 2006
Location: Middletown, DE
Posts: 24
super z

It's most likely your motor mounts loosing up. I had a mini z that had this problem. if you don't check the motor mounts like every 100 hours or so if they back off then with all the vibration the belt will start snapping. That belt should last like 500 hours easily
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Layout Style:





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 05:32 PM.

Page generated in 0.07840 seconds with 11 queries