Browning BK70H Pulleys

Mon Jun 30, 2014 2:15 pm

I have an FCUB S#: 18670 with a belly mower. The two sliding pulleys are Browning BK70H with a recessed bearing. The pulleys are adjustible along two sliding bars. What other than the recessed bearings go on the pulley that allows them to rotate after they are torqued down? Is there a schematic that shows how to mount these pulleys?

Re: Browning BK70H Pulleys

Mon Jun 30, 2014 8:55 pm

First welcome to the forum. :{_}: Glad to have you here.

Second what type of mower you're talking about might help. I'll take a stab at a Woods 42 since they are fairly common. Sounds like you're talking about the mule drive pulleys. If so there are stacked washers on the bolt to get the pulley away from the mounting slot.

Take a look at this page from a Woods 42 manual. http://www.cleancomputes.com/Cub/OEM%20Implement%20and%20Attachment%20Manuals/Woods%20Mower%20Manuals/42C-4%20Rotary%20Mower/Page-09.jpg

It and the complete manuals are available in the "PDF Manuals" OR "Rudi's Manuls" tab above.

Re: Browning BK70H Pulleys

Mon Jun 30, 2014 10:00 pm

The pulleys move up and down as a tension control. They have bearings probably pressed into them. If you have to much slack in the belt try adjusting the mounting hole forward on the mowing deck where it connects to the main brace and that will tighten up the slack.