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NotMoneyGuy


Location: Toronto & north of
Joined: Nov 10, 2010
Points: 87

Idler arm / spring tension questions ---- single-stage 208 cm3 Poulan PRO PR621ES
Original Message   Jan 29, 2011 12:34 am
When the control bar is released and the auger stops spinning, is the idler arm supposed to be tight to the belt at the front tip of the idler arm against the auger or drive pulley?  In my mini-review of the PR621ES posted here at Reply #60 I noted a problem with the auger disengagement not working properly.  Turns out the idler arm's spring was missing.  Poulan / Husqvarna sent me a spring and a new belt (I'll keep the belt for future use.)  The manual shows different / conflicting versions of the spring installation.  I can only see putting the upper end of the spring in the V-notch of the frame.  There are no holes for the upper end of the spring to go into.  The spring's lower end seems best placed in the lower or outer hole of the idler arm, not in the upper inner one.

My concern is that when the auger is disengaged, the idler arm rests fairly tightly on the pulley of the auger.  The spring seems strong for its job or overly extended the way I now have it.  This allows the motor's spinning pulley to make some minor contact with the same spot on the stationary belt.  Would it not be better if the belt was afforded some freedom to move a tiny little bit when the auger is disengaged?  Or is this the way it is supposed to be, with the theory that if the belt is held tightly in place by the idler arm when the auger is disengaged, it allows the belt the maximum distance / separation and minimum burn / wear exposure to the constantly spinning engine pulley at the other end?

TIA for any help here with these conflicting diagrams and my lack of pulley / belt knowledge.



Ariens Deluxe 28  921022  WI, USA      --      Poulan PRO PR621ES 208 cm3 961880002-00

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rubinew


Joined: Dec 30, 2010
Points: 147

Re: Idler arm / spring tension questions ---- single-stage 208 cm3 Poulan PRO PR621ES
Reply #4   Jan 29, 2011 8:35 pm
NotMoneyGuy wrote:

FWIW, the idler arm's forward "finger" still exerts a considerable force on the auger pulley / belt when the auger is disengaged at the control bar.


To me, looks like the finger is being used as a 'brake'.
aa335


Joined: Nov 29, 2008
Points: 2434

Re: Idler arm / spring tension questions ---- single-stage 208 cm3 Poulan PRO PR621ES
Reply #5   Jan 30, 2011 4:09 am
What is that white stuff?  Toothpaste?
Shryp


Location: Cleveland, OH
Joined: Jul 26, 2010
Points: 532

Re: Idler arm / spring tension questions ---- single-stage 208 cm3 Poulan PRO PR621ES
Reply #6   Jan 30, 2011 5:25 am
The belt looks fine to me.  If it were any looser it would probably fall off.
NotMoneyGuy


Location: Toronto & north of
Joined: Nov 10, 2010
Points: 87

Re: Idler arm / spring tension questions ---- single-stage 208 cm3 Poulan PRO PR621ES
Reply #7   Jan 30, 2011 10:12 am
aa335 wrote:
What is that white stuff?  Toothpaste?

White lithium grease.

Ariens Deluxe 28  921022  WI, USA      --      Poulan PRO PR621ES 208 cm3 961880002-00

Replies: 4 - 7 of 7Next page of topicsPreviousAllView as Outline
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