Agri – Fab Snow Blower – 42″

Help!!! I have replaced 2 drive belts and it keeps throwing belt off. The idler is OK as well as pulleys. I have adjusted according to manual but still throws belt. Anyone have any ideas. Thank you.

Rich

Experienced gardeners share their insights in answering this question :
Part # 94-8812 is traction belt 106-4498 auger belt
There is a service bulltin on this I have not seen this yet, Ill paste it for you to look at .
this was issued dec 22-2003 you would think that it would have shown up as a problem by now.

UNITS AFFECTED: Model Number(s): Serial Number(s): 38620 240000001-240999999 38621 (Int’l.) 240000001-240999999 38632 240000001-240999999 38635 (Int’l.) 240000001-240999999 38642 240000001-240999999 38645 (Int’l.) 240000001-240999999 38652 240000001-240999999
SUBJECT: Traction belt jumps off the pulley.SITUATION: Incorrect pulley alignment causes the traction belt to jump off, usually when the drive is disengaged or as a hill is crested.CORRECTION:1. Remove the belt cover, engine belt guide and the bolt securing the crankshaft pulley.2. Remove the auger brake assembly.3. Remove the crankshaft pulley and the auger belt.4. On the left side of the machine, remove the hair pin cotter from the speed control link and slide the link out of the pulley pivot assembly. The traction belt can now be removed.5. Shorten the pulley half nearest the engine (PN 106-7334) shown in Fig 1. Grind or machine 1/8” (.125”/3.2mm). from the hub end of the pulley. The new finished length of the pulley half should be 1.07” (2.7cm).6. Chamfer the bore to ensure the pulley fully contacts the shoulder on the crankshaft. You can send the pulley to an outside machine shop if you do not feel that you can modify the pulley in house.7. Reinstall the pulley with a new traction belt.A. Chamfer edge after grinding/machining.B. Remove 1/8”.C. Masking tape used as a reference line.8. With the engine off, engage both the traction and auger levers and inspect the alignment of both the auger and traction belt idler pulleys (Fig. 2). Since we have moved the crankshaft pulley it may be necessary to bend the idler arms slightly to center the belts. Adjust as needed.9. Install the engine belt guide and test operate.10. Install the belt covers.PARTS: P/N 94-8812 Traction Belt

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

Snowblower belts start to wear out after 5 to 7 years, and should be replaced.
Slipping can be the result of a loss of belt tension (or a weak automatic tensioner) or pulley misalignment. When the belt slips off the track, the friction between the belt and accessory drive pulleys causes the belt to overheat. If you hear a high pitched squealing noise, it`s probably time for a switch.
The serpentine belt need constant tension on the belt to keep it from coming off. If the belt alignment is not aligned then the belt may come off. The tensioner may be out of alignment and not putting enough tension on the belt. Have a mechanic check the tensioner and replace it if needed.
An over-tightened belt can burn out any bearing that the belt rotates on, including alternator, power steering pump, A/C compressor, idler pulleys, etc. An over-tightened timing belt can ruin any pulley bearing it is connected with.
For most two stage snow blowers, there are 2 or 3 belts under the cover. One belt will drive the auger, and the other will drive the wheels.
It`s quite simple, really: your car cannot run at all without a timing belt. If the belt breaks while you are on the road, the car will break down immediately – and your engine can experience severe damage.

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Diagram for belt replacement on 1988 Toyota Tercel
ANSWER : Fig. 1: Correct timing mark placement on 3E and 3E-E enginesHope this helps; also keep in mind that your
feedback is important and I`ll appreciate your time and consideration if
you leave some testimonial comment about this answer.

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Vibration when auger is engaged in Toro 726 oe
ANSWER : Be sure to check pulleys for a rock or anything else lodged in there
then check rear bearing for alot of play up and down