PUMP BELT

[gregjo1948]

IS3100Z Ferris--model 5900611--serial 2000701028 I bought it used and have had it for 6 years. I'm trying to replace the pump drive belt. I'm a little confused because there is no belt tensioner. There are four pullies to route the belt. 1-cranshaft, 2-hydraulic pumps, and 1 idler pulley near the right-side pump pulley. I got a Ferris belt 5100555SM and it's about 1/2" too short. If I manage to get in installed, I'm sure being that tight, I'll burn out bearings. Is there supposed to be a belt tensioner on this machine or am I supposed to get a slightly longer belt and stretch it on? I can't find a pic online of the underside of the mower that shows the pump drive area. Thanks for any help, gregjo1948

 

[ILENGINE]

The belt diagram is on page 44 of the owners manual, and that model calls for the 5100614 supercede to 84009006 belt

 

[gregjo1948]

The belt diagram is on page 44 of the owners manual, and that model calls for the 5100614 supercede to 84009006 belt

ILENGINE--Thank you. It's obvious someone has removed the belt tensioner parts on my mower. I have a plan as-to what I can do to get it back in action. I'll post how it works out. gregjo1948

 

[StarTech]

And I surprised you can even get the 1/2 x 65.75 2 band on in place of the 1/2 x 69.5 2 band belt.

https://www.partstree.com/models/is...aki/pump-drive-group-s-n-2014192366-below-19/

​

 

[ILENGINE]

And I surprised you can even get the 1/2 x 65.75 2 band on in place of the 1/2 x 69.5 2 band belt.

https://www.partstree.com/models/is...aki/pump-drive-group-s-n-2014192366-below-19/

​

Part of the issue may be his 4 pulleys since the illustration and the IPL both show 5 pulleys. Crankshaft, 2 pump, one fixed idler and one tension idler pulley.