SOURCE: john deere mod 345 no spark
first find the wire that is grounded to mower to ignition
and check that it is isolated if mounted on some plastic and disconnect it
if it runs to start switch check wire for cuts also
most common problem is the coil located under the top plate held on by 4 /5 screws on sides.
remove top and follow plug wire back to coil
you can clean the curved edges of coil that are against motor {magneto} with sand paper and clean mag
remove plug and lay threads securely agains frame and check for spark {hold by wedging not by hand as you can get a jolt!}
SOURCE: problem with John Deere L120 tractor
Park brake switch is the most likely culprit,any other would cause the tractor to not turn over in the crank position.
SOURCE: how to replace drive belt on john deere model 345
- remove deck
- remove seat and rear fenders
- pry off deck adjusting knob
- remove F/R pedals
- remove floor plate
- use jackstands to prop up entire right side of tractor
- remove (2) screws holding fuel lines on side of frame
- lift out gas tank, set alongside left side of tractor
- remove plastic fan from hydrostat
- disconnect the electrical connector for the electric clutch
- from the top-side - use a 3/8" drive rachet - stick it into the tensioner slot next to the idler, rotate it to take tension off the belt, and remove belt off hydrostat pulley
- from underside - remove front idler (next to electric clutch)
- from underside - remove the "right-most" idler off the spring tensioner
- from underside - remove the "left-most" idler off the spring tensioner
- now the tensioner can rotate fully to take almost all the tension off the extension spring
- pop the spring off the tensioner arm
- the belt should now be able to be removed from the machine
- reinstall in the opposite fashion
- note: to reattach the spring, connect a nylon cord to the spring, and pull it rearward and guide it onto the tensioner arm - you need to stretch it about 1"
- for reattaching the two idler pulleys to the tensioner, get someone to hold the ratchet so the tensioner is positioned for the belt being in it's most-loose position. You may need to wrap the new belt around the hydrostat pulley first, and assemble the last idler pulley and belt at the same time to complete the procedure.
SOURCE: My John Deere 345 dies for no apparent reason
You have dirt in the fuel tank and it sucks the dirt up on the filter that is attached to the pump. After the machine stalls, the dirt falls off and it will restart and run for a few min.
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