RZ4623 is faster in reverse and slow in forward

jfanguy

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Mar 26, 2017
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RZ4623 is faster in reverse and slow in forward. I just put a new drive belt on. Any ideas? It is three years old.
 

BlazNT

Lawn Pro
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Apr 26, 2012
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Reminds me of the time I put the belt on the wrong side of the tensioner pulley.
 

rphill

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Jun 4, 2014
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My 5 year old RZ5424 is having the same problem. Google search says try purging the hydro units or unit oil may be old and need changing. I wasn't aware that the hydro oil went bad as the oil becomes less viscous, but apparently it does. Youtube may have some videos on purging.
 
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