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Thread: Simpson dryer siroco 455 repair manual

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    Default Simpson dryer siroco 455 repair manual

    I am overhauling a Simpson Clothes Dryer Sirocco 455 and require a repair manual.

    I am stuck on how to replace the drum drive belt. The motor and idler pulley are both fixed and therefor there is no tension on the belt. I have a new belt which is the same size as the original. It is driving me crazy - as usual did not take any photos when I was pulling it apart??

    Can anyone help me please??



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    Senior Member omega99's Avatar
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    belt goes around the drum & motor pulley, idler arm sits on the outside & pushes in
    woteva

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    Default Simpson dryer siroco 455 repair manual

    Quote Originally Posted by omega99 View Post
    belt goes around the drum & motor pulley, idler arm sits on the outside & pushes in
    Hi, I have attached a couple of photos to explain my dilemma which shows the belt being very loose and I can still no way to place tension on the belt.
    I hope this may throw some more light on my predicament?

    Barry




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    Shouldn't the spring be used for the idler pulley? Something looks wrong on the second picture.

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    That is why I am frustrated??!!

    I have attached a couple of photos and you can see that the motor is fixed to the cabinet and inturn the idler pulley is fixed to the motor. So there is no way that I can see to tension the belt?



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    It's hard to tell from your photographs and I have not been able to find any information for the model cited, but perhaps the belt should have a twist in it, i.e. cross over. That will have the effect of shortening it, however the relevant pulleys will turn in opposite directions.

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    Some of the older crappy (sorry cheap shite) used the weight of the drum to keep the belt tensioned and to support the back of the drum... Not sure if that is relevant??

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    drew up a diagram for you
    The belt goes around the drum and the motor pulley first.
    You will need to spread the adjuster pulleys away towards the outside of the cabinet.
    When you have the belt around the drum and pulley allow the two tension pulleys to rest on the outside out the belt.
    One thing to check,make sure the spring between the tension pulleys doesn't fall out.
    With your dryer the same idea applies,the tension spring is attached to the motor,so twisting the motor eases the belt tension

    Last edited by timmbo; 12-09-16 at 09:55 AM.

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    Default Simpson sirocco 455 drive belt

    Hi,

    I have attached a drawing how I have routed my belt.

    My belt is very loose with no visible method to tension???



    Barry

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    Looking at your photos, the tensioning spring looks very wrong (as others have mentioned).

    You say you replaced the belt with one the same size as the original.

    Is it possible the original belt had stretched and you really need a smaller belt?

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    Was going to ask the same thing mtv... Either that or did they actually supply the correct one?

    It's hard to tell from the crappy pictures you attached, but I'd say the spring is NOT supposed to be on the motor - does the idler pully move at all??

    Here's an exploded parts pict and it shows the idler on a hinged arm...

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    What about running the right hand side of the belt around the tensioner and not the left side as per your diagram.
    I'm out of my mind, but feel free to leave a message...

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    Default Dryer belt

    Hi Guys,
    Thanks for all your suggestions.
    My first big project was in the early 60’s when I built a 16’ clinker ski boat including marineising a Dodge Q motor, followed by the design and construction of wood working machinery and finally in the 80’s constructing a four place fully certified light aircraft from raw materials. So, as I have said that this problem is driving me batty.
    The dryer was revolving with the old belt but not heating, hence the reason for stripping it down to source the problem. Could not really find the problem but replaced some components and undertook a full clean.
    I have the full model number of the drier which was used to order the replacement belt.
    If the belt is routed outside of the idler pulley, as it has been suggested, the belt is even looser.
    The parts diagram provide by the looks shows an idle pulley which would operate under tension whilst mine has a motor solidly attached to the casing with the idler pulley firmly attached to the motor. So where does the belt tension come from??? As far as I can see the spring on my machine does not function to provide any tension.
    In the back of my mind is the thought that I am missing the trees for the forest and should the belt be elastic to provide the tension??!!

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    ,try this link.Hope it helps.

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    Hi Guys, well the problem has been solved - time will tell???

    There is no direct way of tensioning the belt by traditional methods.

    Tension comes from zero tolerances. The belt is installed with the drum leant at an angle which provides the centre to be offset to give just enough slack to route the belt over the pulleys. When the back panel is installed the drum is centred providing the required tension.

    Next step is to switch the unit on!!!

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    So what's the 'tensioning' spring for? It appears to do nothing.

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    All I can think of is that it stabilises the motor when under load as the motor is attached one end only to the cabinet and which is the opposite end to the pulley.

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    Default Sirocco 455 - drum belt routing

    Hi,
    I have the same problem with a Sirocco drum belt. I could not open attachments for diagrams/photo's.
    Could you please let me know how you routed the belt. I don't have a stretched belt and there is no
    belt tension pulley. Thanks.

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    Photos ?

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