Rear mower tension pulley

IH CUB Lo-Boy Series - 154, 184, 185 Forum -- Questions and answers to all of your Lo-Boy related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
sjm32157
5+ Years
5+ Years
Posts: 37
Joined: Fri Apr 03, 2015 9:54 am
Zip Code: 16025
Tractors Owned: Cub Lo Boy 154
Massey Ferguson 35

Rear mower tension pulley

Postby sjm32157 » Sun Aug 04, 2019 5:41 am

My 154 has been running great this mowing season. Yesterday when mowing, I started to get a rapping noise that seemed like it was coming from the tunnel. I stopped and opened up the back of the tractor to check the PTO assembly. All looked fine and worked as it should. I checked the PTO adjustments, shaft, and set screws. I ran it without the mower belt connected and it seemed fine. Hooked everything back up and went back to mowing. Almost immediately it started the noise and there was a vibration, and this time it threw the mower belt off. Tore it back down and started checking the PTO again. PTO looked fine but what I didn't notice the first time was that the right rear mower tension pulley had failed. Would a bad pulley make a noise like that? New one on the way from Hamilton Bob.

mozer71
501 Club
501 Club
Posts: 575
Joined: Wed Apr 04, 2018 1:33 pm
Zip Code: 22650

Re: Rear mower tension pulley

Postby mozer71 » Mon Aug 05, 2019 7:26 pm

Belly deck, right. Both the right idler and spring tension one are cast iron pulleys with ball bearings. I'll admit mine are quite loose and I lube them frequently. When they lose a ball or more, they can make a racket and become unusable. They look to be open balls now, so I need to get on this too.

BigBill
10+ Years
10+ Years
Posts: 7081
Joined: Sat Jul 22, 2006 5:02 pm
Zip Code: 00000
Location: in northern usa

Re: Rear mower tension pulley

Postby BigBill » Tue Aug 06, 2019 12:11 pm

Luckily I have a few rear mule drives with good pullies and bearings I just keep on swapping out used parts while I order new ones. I’ve had the belt come apart and slap.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

BigBill
10+ Years
10+ Years
Posts: 7081
Joined: Sat Jul 22, 2006 5:02 pm
Zip Code: 00000
Location: in northern usa

Re: Rear mower tension pulley

Postby BigBill » Thu Aug 29, 2019 10:02 pm

I made my own belt spring tensioner from a spring using a snowplow spring tensioner stud and a piece of angle iron with a hole drilled in it for adjustment. Never broke again.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

outdoors4evr
10+ Years
10+ Years
Posts: 2180
Joined: Tue Jul 22, 2008 12:44 pm
Zip Code: 48370
Tractors Owned: 184
Location: Oxford, MI

Re: Rear mower tension pulley

Postby outdoors4evr » Fri Aug 30, 2019 10:19 am

Sure wish those mule drive pulleys had a lubrication point. I ended up replacing my cast iron one with a cheap stamped pulley with a sealed bearing. I don't really expect it to last long.
184 w/ Creeper & 3-Point
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade

sjm32157
5+ Years
5+ Years
Posts: 37
Joined: Fri Apr 03, 2015 9:54 am
Zip Code: 16025
Tractors Owned: Cub Lo Boy 154
Massey Ferguson 35

Re: Rear mower tension pulley

Postby sjm32157 » Fri Aug 30, 2019 10:32 am

My replacement pulley from Hamilton Bob's was cast. Heavy and solid.


  • Similar Topics
    Replies
    Views
    Last post

Return to “Lo-Boy Series - 154, 184, 185”

Who is online

Users browsing this forum: No registered users and 1 guest