Garden Tractors - HB212 Garden Tractor

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HB212 Garden Tractor

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=110793
Printed Date: 26 Nov 2024 at 8:28pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HB212 Garden Tractor

Posted By: reedski
Subject: HB212 Garden Tractor
Date Posted: 21 Aug 2015 at 8:38pm

I need ideas on problem with my HB212, I am a retired engineer and have exhusted my ideas.

My tractor is super sensetive as the hydro control is moved. When the unit moves it has a periodic "surge" the rpms remain the same. I can take it out on the street af full throttle and speed, it works without surging. Problem has become progressivly worse over several years

I have:

Checked for leaks

Checked and replaced belts

Eliminated carburation probs

Replaced the Hydro filter

Verified positraction adjustment

Anybody had this prob? Things to try ?

Replies:

Posted By: SHAMELESS
Date Posted: 22 Aug 2015 at 4:16am

air in the system? pump going out?

Posted By: SHAMELESS
Date Posted: 22 Aug 2015 at 5:28pm

was thinking about this all last night...bet you have some linkage that's worn a bit!

Posted By: ACmowerguy
Date Posted: 22 Aug 2015 at 10:29pm

Have you checked the bolts that connect the bevel gear box to the frame tunnel? If they are getting loose you could have intermittent belt slip.

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10 various B-series garden tractors, AC Homesteader8, 416 hydro,710 gt, 914, 916H, 917H, 920D, and many misc attachments