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4700 JD sprayer with speed issues
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Lil' Hoss
Posted 2/23/2011 20:05 (#1631736 - in reply to #1631708)
Subject: Re: 4700 JD sprayer with speed issues


NESD
I always disassembled the front planetaries to inspect the center (Sun) gear as it is a high wear item, anyway it is time for a thorough inspection to see the extent of the damage and then make a decision on repair or replacement, It must have a hub seal that is leaking but that usually is very noticeable with the oil on the inside of the rim.

The hydro cable adjusts at the lower end but you need to be careful when adjusting it so you don't loose neutral and it won't start because the lever isn't contacting the neutral start switch.

You may need to get the dealer to check the syncronization of the hydro pumps, as it is possible that it could have two wheels pulling harder than the other two and loosing some ground speed, this is usually noticed first by the machine dogtracking in soft fields, the front hydro pump drives the right front and left rear, the rear pump drives the left front and right rear.
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