Z254 parts diagram missing something

[PTmowerMech]

Husqvarna Z254
967324301 00
S# 051115C006449



On this parts diagram at Parts tree, and two others I've looked at, It shows the deck idlers, but only labels two of them. #9 & #10. The third one isn't labeled with a number? I suspect it's the same as one of the others. But which one? All three idlers on the mower are the same size 5 3/8 X. 1 3/4.

BTW, is this an 2005 or a 2015?

 

[ILENGINE]

The diagram on the Husqvarna website shows the missing pulley as a number 9 or at least the diagram shows 2 of number 9 and 1 of number 10 in the part number description

 

[StarTech]

May 11, 2015.

According to the 2015-11 IPL I downloaded from Husqvarna 96732430100 PN 2 ea 532196106 and one ea 532196104 but the 2016-11 IPL has all three ilders as 539132728 (supersedes to 589766102). So the question is all three the same size or not.

 

[PTmowerMech]

The diagram on the Husqvarna website shows the missing pulley as a number 9 or at least the diagram shows 2 of number 9 and 1 of number 10 in the part number description

I see what you mean. That makes sense. Thank ILengine.

 

[PTmowerMech]

May 11, 2015.

According to the 2015-11 IPL I downloaded from Husqvarna 96732430100 PN 2 ea 532196106 and one ea 532196104 but the 2016-11 IPL has all three ilders as 539132728 (supersedes to 589766102). So the question is all three the same size or not.

I ordered what the diagram shows. The 2" and the thinner one.

Wish me luck. lol...

 

[bertsmobile1]

Check the belt number on both diagrams.
Once in a blue moon a real engineer is accidently employed by a mower company
They look at a deck and ask "why don't we use 3 idlers the same size and either move the bolt 1/4" of fit a shorter belt"
When the other incompetants see he knows what he is doing they get him sacked.

Just done the deck on a L 120 JD
IPL shows 2 small ( same ) & one large idler
Deck has 2 large & one small idler none of which are the same size.
All of them have to be original because the deck has welded tabs to act as belt keepers.
From a vibration point of view no idler should be the same size as this helps to damp out resonant vibrations .
From a production point of view they should all be the same size to reduce inventory & prevent assembly errors.
The actual size of an idler is a trade off between getting a balancebetween the rotational speed of the bearing, the load on the bearing and the largest curve which is better for the belt.

 

[StarTech]

Yes they do use different size belts. The one that has all three idlers the same has an EL = 152.9 and the one two and one has a EL = 154. Both are "B" belts.

And I have too found that JD IPLs are no always as accurate as they need to be.