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  #1  
Old 07-06-2006, 08:58 AM
mike micklich mike micklich is offline
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why does older viper deck shake so violently as to break belts

any clues it has 700 hours on it i got it for free as a donation to cemetert i maintain. I know why it was free but can't figure why it shakes so spindles spin well all grease som play in deck hangers is it geometry? crap engineering? something simple?
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Old 07-06-2006, 09:03 AM
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lawnwizards lawnwizards is offline
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bent or broken blade?
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Old 07-06-2006, 09:16 AM
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Runner Runner is offline
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That, or a bent spindle. It is possible that it is so out of sync that it reaches a frequency that throws it that much out. Just think of a washing machine that when it goes on the spin cycle, it it starts tipping or scooting. At slower speeds, it may be just fine...smooth as can be; but at higher speeds, it goes out of wack. Think of a cieling fan...it's the same thing.
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  #4  
Old 07-06-2006, 12:28 PM
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lawnmaniac883 lawnmaniac883 is offline
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Needs more tension on the belts...
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  #5  
Old 07-06-2006, 01:28 PM
barnard barnard is offline
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could be a piece of a stick wedged in one of the pulleys. Its happened to me.
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  #6  
Old 07-06-2006, 06:57 PM
horticulturedawg horticulturedawg is offline
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bent frame

I had a viper...hit a very short post hidden in the grass, mower stopped and I went tumbling over the front. After that, the deck shook like crazy, breaking belts almost daily. I warped the frame and ruined the unit. Sold it not too long ago to a guy to use for clean up jobs. It didn't do anything to the deck but you could tell where it bent the frame. That machine wasn't very reliable to start with...always broken...engine, broken belts, uneven cut, you name it. I have three lesco machines...one 36", and one 48" wb. Didn't realize how poor the quality was till I got an exmark.
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  #7  
Old 07-06-2006, 09:00 PM
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Turf Technologies Turf Technologies is offline
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I dont know our Viper never gave us a problem, odd.
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  #8  
Old 07-06-2006, 09:46 PM
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Jpocket Jpocket is offline
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I have a VIPER, we only use it for Fall C/U cuz it has a PECO vac, as a high volume mower it is a piece of crap. Although it is a good back up and will get you finished for the week if need be.
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  #9  
Old 07-07-2006, 12:57 AM
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Envy Lawn Service Envy Lawn Service is offline
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I wish you were near me. I'd have you drop it off one weekend and go over it for you.
You are certainly out of whack. Probably more than one thing, maybe even more than two.

Anyways, go out and push your deck sideways while suspended.
Have side to side shift?
>>>> Replace bushings in front deck A-arms
>>>> Possibly those pillow block bushings

Check the load bearing tension on all four lift links.
Have some that aren't supporting much weight?
>>>> Adjust

Check belt routing, look in the pulley grooves, check for spindle bearing play.

Which belt are you loosing?
PTO to deck?
>>>> There is a fix kit
OR Spindle belt?
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  #10  
Old 07-31-2006, 06:59 AM
MR HYDROSEED MR HYDROSEED is offline
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Looking for a used lesco z turn

Looking for a used Lesco Z turn, if you've got one you can't stand anymore let me know. mrhydroseed@yahoo.com
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