Re: John Deere 510 batteries

Posted by Jonathan on January 02, 2000 at 09:47:24 from (152.163.204.207):

In Reply to: John Deere 510 batteries posted by Ron corkum on January 01, 2000 at 15:05:06:

I'm not sure if they were standard equipment on these machines, but it may have an electric de-stroke solenoid mounted on the stroke control valve of the hydraulic pump. It is present on 410's and other machines too. I'ts purpose is to keep the main hydraulic pump from building pressure while the engine is cranking over. If it has one, and it is not energizing (its powered off the start terminal of the starter solenoid), it will allow the pump to build pressure as the engine cranks...thus appearing to have weak batteries. If it has one, it is located on the left hand side of the pump (sitting in the seat) protruding from the front cover of the pump.
If it doesn't have one or it is not working, try pulling on a backhoe lever as the engine is cranking....stabilizer usually works best...this gives the pressure oil a place to go without building pressure.(Loader functions will not work to do this)
But nothing replaces good batteries and connections as stated by the others.
Also there should be a transmission disconnect lever on the left hand sideof the dash....this will mechanically disconnect the transmission drive to assist starting....this should not be operated too long disconnected as it interupts flow to the front pump which is always turning

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