6410 starting issues

[Anonymous-0]

Have a 6410 after running tractor 1 hour, turn key to start back and nothing, I can wait 30 min.
and tractor cranks back no problems, I have replaced battery, checked battery cables and connections, checked voltage on alt.( 14 volts)
What do I need to check next? Thanks

 

[MightyReek]

When you say "nothing", you mean you don't have a response from the starter or the starter runs and the engine don't start?

If the starter isn't running, you may have problems with the starting relay. It's a big round relay (very similar to the one used with the glow plug, but it's located near the injection pump.

Also make sure you check the safety switch, under the transmission, behind a small square metal cover.

Despite that, you can have problems in the big connector under the right stair, near the HCU. Some times the pins become loose and fail...