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John Deere Tractors Discussion Forum
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Re: John Deere 2440 Not starting

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Tx Jim

05-08-2013 15:34:17

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First have you relocated the ground(-) cable from the rusty battery box to the engine block or starter mounting bolt?????? Besides adding/using SC valve you can rapidly move steering wheel from side to side while attempting to start engine to relieve hyd pressure.To give the correct destroking screw part numbers will require you to determine which hyd pump your tractor has. Here is one "example" of pump HYDRAULIC PUMP STROKE CONTROL VALVE

39 CM3 (2.4 IN.3)

A4365R PACKING "O" RING View/Update 0.82 US

R26448 O-RING, O-RING View/Update 1.46 USD

R27171 SCREW View/Update 7.37 USD


34H254 PIN, SPRING View/Update 0.33 USD

Parts that have an issue will display a flag. *Subtotal 15.26 USD
This post was edited by Tx Jim at 15:36:41 05/08/13.

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farm mechanic

05-08-2013 16:48:36

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 Re: John Deere 2440 Not starting in reply to Tx Jim, 05-08-2013 15:34:17  
I have relocated the ground cable from a rusty spot to a bolt on the engine block, this didn't solve the problem, The starter was just rebuilt and the shop the rebuilt it said that it was bad. Would this also cause the hydraulics to chatter?

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Tx Jim

05-09-2013 04:46:06

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 Re: John Deere 2440 Not starting in reply to farm mechanic, 05-08-2013 16:48:36  
Chattering hyd's could be a number of things and I'll list some of them.

plugged hyd sump screen

plugged hyd filter

faulty hyd filter relief valve

worn stroke control valve

broken/leaking supply tube to ind pto(if equipped)

broken/leaking supply tube to hyd hi-lo(if equipped)

worn trans pump

leaking rockshaft control valves

faulty inlet/outlet valves in frt hyd pump

possible faulty loader control valve &/or plumbing

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