New Holland LM435A issues

[farmer982]

Hello, Wondering if anybody can help, I have a New Holland LM435a telehandler that we have had on the farm for a little while now

2 days ago I put the battery on charge for a few hours, unplugged it and put charger away, came out the next morning to use the machine and the key did not start the machine. it would turn everything inside the cab on but wouldn't turn the starter, I jumped the starter to make sure nothing was an issue there and it started right up, to save some time I ran a new wire to the exiter wire on the starter so it started from the key again.

Not sure if charging the battery had anything to do with this or not I guess it could just be coincidence

but then realized it doesn't move in forward or reverse, I hooked the original wire back up to the key switch incase it was needed and still nothing

i've checked all fuses/ relays
I'm wondering if anybody has a wiring diagram or workshop manual for this machine?? or if anybody knows a way to wire up the shuttle to where it bypasses any crap that is making it lock out. its 100% an electrical issue

 

[ACEngineering]

Hello, Wondering if anybody can help, I have a New Holland LM435a telehandler that we have had on the farm for a little while now

2 days ago I put the battery on charge for a few hours, unplugged it and put charger away, came out the next morning to use the machine and the key did not start the machine. it would turn everything inside the cab on but wouldn't turn the starter, I jumped the starter to make sure nothing was an issue there and it started right up, to save some time I ran a new wire to the exiter wire on the starter so it started from the key again.

Not sure if charging the battery had anything to do with this or not I guess it could just be coincidence

but then realized it doesn't move in forward or reverse, I hooked the original wire back up to the key switch incase it was needed and still nothing

i've checked all fuses/ relays
I'm wondering if anybody has a wiring diagram or workshop manual for this machine?? or if anybody knows a way to wire up the shuttle to where it bypasses any crap that is making it lock out. its 100% an electrical issue

You need a new forward and reverse lever. I got then in stock.

 

[ACEngineering]

Oh and if your having starting issues with sluggish engine cranking common to that machine then you need a better starter. The Bosch starter is a bit rubbish imo! I got a decent start for them much better.

 

[farmer982]

thanks for the quick response, it has no hesitation at all starting it just won't actually let it start
is there a way for me to test the forward and reverse lever to make sure that is it?

the reason I say that is because i tested the wires coming out of it and it seems to make the right wire hot when pushed forward and the right wire hot when its put in reverse

 

[farmer982]

also would you happen to know if there is a way to power probe something to move the machine from where it is until I can get the part? its in a very awkward position at the moment

 

[ACEngineering]

thanks for the quick response, it has no hesitation at all starting it just won't actually let it start
is there a way for me to test the forward and reverse lever to make sure that is it?

the reason I say that is because i tested the wires coming out of it and it seems to make the right wire hot when pushed forward and the right wire hot when its put in reverse

It works a safety start relay so one micro switch will have burnt its self together making it think it's in drive still.

 

[essexpete]

It works a safety start relay so one micro switch will have burnt its self together making it think it's in drive still.

I will file this away Ace!