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  #1  
Old 08-12-2014, 01:04 AM
hustlerinok hustlerinok is offline
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Paging brian for help with idler spring

Hello,

hustler super z, model 927889, serial 06071549

My idler was making a lot of noise and I noticed what I feel was excessive idler arm movement during operation. I replaced the belt, and installed a new idler pulley. I also ordered a new spring from a site that lists themselves as an authorized hustler parts dealer.

The spring did not arrive in any sort of hustler packaging, and was advertised as hustler oem. I am not sure if this is normal or not. My problem is this, the new spring was about 8" eye to eye before installation, and my old spring is about 6" eye to eye. The old one had a gold zinc coating, and the new one was silver.

The new spring had a lot more tension and I am afraid it may be the wrong spring. I may be over-tensioned and I do not want to damage any shaft bearings. Is there a way I can find out what the correct length is for the spring?

This mower is not original to me so I am not sure if the one that was originally on my mower is the correct item. I will appreciate any help you can provide.
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  #2  
Old 08-12-2014, 11:55 AM
hustlermidwest hustlermidwest is online now
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What is the part number of the spring you bought and putting on? The color doesn't bother me as much as the length or stiffness. There is a time and place for aftermarket parts, but you should be mindful if you are really saving money or causing a additional headache. Not all authorized Hustler dealers sell only OEM parts.
While you are getting me the part number you bought I'll do a little research on the length of the original spring.

Brian O
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  #3  
Old 08-12-2014, 07:00 PM
hustlermidwest hustlermidwest is online now
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Still waiting for someone to find a ruler. The hydro spring you are talking about is used everywhere in our line. Troubling there's such a difference. It is adjustable. My rule of thumb is 10lbs of pressure the belt should move no more that 1 inch. I would push the belt with my thumb nail in the center of two pulley's. When the nail turns white is about 10lbs. movement of the belt should be about 1 inch. Not scientific but used it in the old days with over center belt engagement systems.

I should get the answer tomorrow, I don't have access to the spring right now.

Brian O
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  #4  
Old 08-13-2014, 08:47 AM
hustlerinok hustlerinok is offline
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Brian,

Thank you for the help, it is very much appreciated.

Unfortunately my model has a non adjustable tension spring. I noticed in the manual for my model it shows a way to adjust it via a double nutted threaded shaft, however mine does not have this feature. There are just two hooks, one on the frame and one on the idler arm.

I have the original sales brochure and it shows a view of the underneath of the mower. The mower in the brochure also has a non-adjustable idler (Form # 782698). So I assume the switch to an adjustable idler may have been made either shortly before or shortly after my model.
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  #5  
Old 08-13-2014, 09:57 AM
hustlermidwest hustlermidwest is online now
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Did a little digging. The part number you gave me is for the spring on the hydro belt that is adjustable. Since you stated that your hydro belt is not adjustable it requires part # 781302.

Brian O
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  #6  
Old 08-13-2014, 11:31 AM
hustlermidwest hustlermidwest is online now
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I see what you are saying. I'm looking at the parts breakdown of a 927889. It clearly shows a 781302. I go to a 927889B which is a newer model and it shows a 601016 with a non-adjustable set up. Do you have any letters after your model number? It would be an "A" or a "B". If no letters I still go with the 781302 for the non adjustable. I've got a call into an engineer to discuss this more with him.

Brian O
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  #7  
Old 08-13-2014, 12:31 PM
hustlermidwest hustlermidwest is online now
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final answer: part number 781302 is 5.885" long and part number 601016 is 7.250" long.

Brian O
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