Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Hi, I bought this snowblower from HD last year. Used it about 3 times. This year it started right up but the auger didn't turn. I took the belt cover off and saw that both attachment belts were destroyed/shredded. I bought two new belts, put them on, and I see that the attachment pulleys on the engine shaft do not line up with the attachment pulley. I see no way of fixing this and the manual is worse than useless. Can anyone help?

Thank you,

Pete

The drive pulley on the engine shaft aligns perfectly with the lower pulleys, but the attachment pulleys are off by a full pulley width if not more. If I were to move the whole pulley group in order to put the attachment pulleys right it would throw off the drive pulley by a considerable amount. Is this a good thing to do?

In answer to your question. No.

Sounds like either:

1. The pulleys attached to the auger shaft need to be moved into alignment; or
2. The engine shaft pulleys need to be aligned so the attachment pulleys are OK and then you realign the lower traction pulley.

I'd go with number 1, if possible.

Are the pulleys on hte engine shaft all attached to form one unit? My blower uses separate pulleys, a keyed shaft and a bolt/washer on the end of the shaft.

   There are three belts on this model with two pulleys.  A single tractor drive pulley and a double belted auger drive pulley.

 

>>The drive pulley on the engine shaft aligns perfectly with the lower pulleys,

 

    There is only one drive pulley on the crankshaft – That is the one closest to the engine.   It drives one pulley below not “lower pulleys”.  From the drawings it looks like the pulley has a bit of extra length which goes towards the engine.   From what you say this one is aligned but should be aligned with one pulley below.

 

>>but the attachment pulleys are off by a full pulley width if not more. If I were to move the whole pulley group in order to put the attachment pulleys right it would throw off the drive pulley by a considerable amount

 

   The two v-match belts are on a separate pulley.  That pulley can probably be slid a bit and not move the tractor drive pulley as it’s separate.  The “attachment” pulley with the two belts has a collar and the collar goes toward the engine.  If the collar is towards the intake  housing then it’s reversed and could be the problem.

trouts2 wrote:

kinger wrote:
Kinger, can you describe this a little better? I may be able to help.

You're saying the traction drive pulley is fine, but the dual belt auger belt alignment is off...

Assuming the engine pulley is correct, which direction and how much are the idler and/or lower pulley off?

PK

   I missed it.  The pulley's are bolted on, not keyed and no set screws - have flats but there are two distinct pulleys and the outside one with the two belts could be reversed.  No harm in unscrewing the bold and see what there is for play if any.  As I mentioned there's an extended spacer sleve on the outer pulley which should be to towards the engine.

Snowmann wrote:
Yes, the traction drive pulley is lined up perfectly, and the belt shows little to no wear. As for the attachment belts/pulleys:
The lower pulley is slid over and bolted to the end of the attachment shaft. There doesn't seem to be any room for adjustment there. The idler pulleys overlap the lower pulleys such that the idler pulley closest to the motor aligns with the lower pulley closest to the attachment. Within 5 seconds of running the snowblower the belts try to jam between the lower pulley and the attachment. They walk right off the lower pulleys. The finger is keeping the belts in place on the idler pulley, I assume.

kinger wrote:
There is no adjustment. I think there may have been some procedural errors at the assembly plant. There is an "order of operation" and gauge tool used when the gear case is affixed in the housing. They were clearly not used (or yours is loose). The gear case mounting brackets will need to be loosened (at the housing and gear case, 4 bolts), the pulley must be aligned and held in place (stick something behind the impeller to gauge it properly through the discharge opening, - remove the spark plug first), then the gear case supports tightened (really though, this is covered under warranty; take it back and have a dealer fix it.)

PK

If I'm reading your last post correctly the double pulley on the engine shaft is aligned with the double pulley on the attachment housing. The double idler pulley is out of alignment such that the sheave closest to the engine is aligned with the front sheave of either the engine or attachment pulleys.

| | |         Engine
  | | |       Idler
| | |         Attachment

nibbler wrote:
No, I guess I didn't explain it properly. With the snowblower facing so the handle is to the left and the attachment is to the right:

   I I I      Engine Shaft Pulley
   I I I      Idler
 I I I        Attachment Pulley

The misalignment causes the belts to come off the attachment pulley and jam between the attachment pulley and the housing.