Mowing Branson 3520H slow in forward, faster in reverse

robisinwa · May 13, 2018

Hi,
I think its been creeping up on me but forward is now slower than going in reverse, any speed. Crawled underneath, had my wife work the forward and reverse pedals and I can see that reverse is going the full length of the pedal movement but forward isn't... I can see the wear markings for how much the pedal use to go in forward and its not going that far anymore.

There must be something adjustable that has backed itself off or such...pushing the reverse pedal it feels like you could keep going if you really pushed hard... in forward it feels like pushing against a wall.

What do I need to adjust and how do I get to it?

Much appreciated for the help.

-Rob

Slowpoke Slim · May 13, 2018

Hopefully Dave or Mr. Bitz will be along soon to answer your question.

Omega Woods · May 13, 2018

Go to Post #6 of this thread and download the service manual:

http://www.tractorbynet.com/forums/century-branson/393495-branson-20-series-service-manuals.html

Chapter 6 has info about the HST Pedal Adjustment.

robisinwa · May 13, 2018

Omega Woods said:
Go to Post #6 of this thread and download the service manual:

http://www.tractorbynet.com/forums/century-branson/393495-branson-20-series-service-manuals.html

Chapter 6 has info about the HST Pedal Adjustment.

Thank you for the link.

I see the part about pedal adjustment for neutral but I don't see it calling specifically out for forward speed (ie forward pedal movement length adjustment). Are we saying that basically its one and the same adjustment?

Omega Woods · May 13, 2018

I don't know, mine's a shuttle shift. I just did a quick search through the manual for something that looked promising. Chapter six looks like it has drawings of how the linkages are put together. You might have to do some reading and noodling to figure out what's slipping or loose.

robisinwa · May 15, 2018

Figured it out, hard to get a good photo but if you see in the first, how much space is around the pedals, you can imagine over time how much dirt/mud can fall down around the pedals. The issue was hard packed mud in behind of the swing plate attached to the pedal. When you push the forward pedal forward, the swing plate goes backwards, right into the rock hard mud. Mud that goes below the pedal really doesn't have any place to go... the fuel line routes around there blocking its exit.

It took taking off the plate under the rubber mat and the protective foot glass off to be able to see what was happening with the swing plate attached to the forward pedal. You wouldn't be able to get at it from underneath. I used a long handle flat tip screw driver to get it out and wash it out with a hose over 10 minutes. A lot was caked in there.

Live and learn.