MF/Bobcat starting problem when warm

[Rob Holmes]

I've got an MF 9407S telehandler, that when warm, labours to start, almost as if it has a low battery.
If left for half hour or so it'll start up fine with no hint of labourin.
It did have a new battery less than 12 maths ago as that was what I thought the problem was.
Is there a valve somewhere not dumping hydraulic pressure and putting more load on starter?

 

[Nearly]

@TripleSix

 

[ACEngineering]

I've got an MF 9407S telehandler, that when warm, labours to start, almost as if it has a low battery.
If left for half hour or so it'll start up fine with no hint of labourin.
It did have a new battery less than 12 maths ago as that was what I thought the problem was.
Is there a valve somewhere not dumping hydraulic pressure and putting more load on starter?

possibly a spool sticking when hot or a solenoid failing when hot, deadending a service like boom in or aux or rear hitch etc which can sometimes go unseen. Or brake circuit if its got assisted brakes.

Or a duff starter motor, had starters play up both only when hot or cold before, it wont be the battery if its starting better cold.

My money is on a hydraulic issue but i dont know there hyd system well enough to pin point it.

 

[Chuckie]

Have you tried turning the steering at the same time as the key?

 

[icanshootwell]

Have you tried turning the steering at the same time as the key?

I remember my old Matbro did that, you would of thought the modern stuff wouldn't need to do it.

 

[Gordon Geko]

I've got an MF 9407S telehandler, that when warm, labours to start, almost as if it has a low battery.
If left for half hour or so it'll start up fine with no hint of labourin.
It did have a new battery less than 12 maths ago as that was what I thought the problem was.
Is there a valve somewhere not dumping hydraulic pressure and putting more load on starter?

Try fitting a bigger earth cable

 

[Rnold]

I've got an MF 9407S telehandler, that when warm, labours to start, almost as if it has a low battery.
If left for half hour or so it'll start up fine with no hint of labourin.
It did have a new battery less than 12 maths ago as that was what I thought the problem was.
Is there a valve somewhere not dumping hydraulic pressure and putting more load on starter?

I used to have the same problem with the smaller MF8926 handler. I don't think they put a large enough battery on in the first place. I put a larger capacity battery on and never had the issue again. Kept the machine for 15 years.