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710D Won't start, Hyd. Issue

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Irvan05

New Member
Joined
Nov 13, 2014
Messages
1
Location
Auburn Ca
Our 96 710D won't start unless the Hyd. Pressure is removed. After being run if you were to get on the tractor and just turn the key it sounds like the batteries are almost dead (It turns over but very sluggishly). you move all of the Hyd. components i.e. front bucket and backhoe, and it starts just fine like nothing is wrong. This issue is getting worse and worse. Anyone ever had this issue?
 
D

Delmer

Senior Member
Joined
Jan 3, 2013
Messages
8,897
Location
WI
I haven't had the issue or fixed it, but your hydraulic pump isn't "destroking". There's a solenoid that controls a valve in the pump that is supposed to keep the pump from "loading up" as it's started. That solenoid may burn out at 12V so don't hotwire it. The solenoid is easy to see on the outside of the pump, take the wires off and see if it's burned out (very high ohms, no continuity) or check if it's getting voltage when cranking, then pull the valve out and check it.

I can't explain it getting worse and worse? cranks slower and slower? happens more often? Maybe the starter is getting tired of being abused?
 
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