John Deere 4020 Gas & Diesel Tractor Radiator
Problem for John Deere 4020 Gas & Diesel Tractor Radiator

4120 eletc.hydrostat drive will not move forward




By deerebill on Nov 09, 2009

" "
4120 eletc.hydrostat drive will not move forward or back ward.was running fine turned it off for a moment then back on and would not move.

Solution #1

posted on Nov 10, 2009
Not Rated)

n2vrh

Rank: Wiz 
Rating: 94%, 5 votes
It sound like either the hydraulic filter is plugged or one of the safty switches have come undone, either by a break in the wire or a connector fauling off, anouther area to look is at all the linkage to make sure nothings has become dis-connected.finally check to make sure the belt driving the hydralic unit is within factory specs and tight enough. Hope this Helps Don
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