Ford 8340 4WD Problem

[phil]

Ford 8340 engages 4wd when you hit the brakes but not when you press switch, any pointers where to start?

 

[multi power]

Get a red tractor with a perkins engine, that's how I solved all my 8340 troubles

Sorry no help I know

 

[Thomas5060]

Get a red tractor with a perkins engine, that's how I solved all my 8340 troubles

Sorry no help I know

a McCormick?

 

[phil]

Get a red tractor with a perkins engine, that's how I solved all my 8340 troubles

Sorry no help I know

I'd lose the will to live if I had a red tractor
No offence

 

[carbonfibre farmer]

@Nearly?

 

[phil]

@Nearly?

Is he an expert?

 

[carbonfibre farmer]

H

Is he an expert?

He knows a fair bit about 40series ford/NH.

 

[phil]

H
He knows a fair bit about 40series ford/NH.

Great, not much use in prevailing weather conditions without it

 

[mushnt grummmble]

Ford 8340 engages 4wd when you hit the brakes but not when you press switch, any pointers where to start?

Switch has gone?
Fuse?
Relay?

 

[phil]

Switch has gone?
Fuse?
Relay?

Power to the switch I think so could it be a wire to solenoid ?
Solenoid must be ok if brakes engage it
Maybe swop wires with diff switch

 

[mtx.jag]

@Oily rag

 

[phil]

@Oily rag

Sounds exactly like the man I need

 

[mtx.jag]

Sounds exactly like the man I need

He knows his blue tractors..

 

[phil]

He knows his blue tractors..

Well he will suit this one

Leaks oil like one of those nodding donkeys in a Texas oilfield

 

[phil]

The offending 8340

 

[Oily rag]

Hey, check the switch is closing by doing a continuity check across the pins. Another option is to check that both of the brake pedal switches are working and are adjusted because I think it'll knock 4wd out if your using independents? Try that and see how you get on?

 

[phil]

Hey, check the switch is closing by doing a continuity check across the pins. Another option is to check that both of the brake pedal switches are working and are adjusted because I think it'll knock 4wd out if your using independents? Try that and see how you get on?

If pedals are locked and pressing them engages 4wd everything would be right there then?

 

[Oily rag]

If pedals are locked and pressing them engages 4wd everything would be right there then?

Not if one switch was naff or mis adjusted and it thinks one pedal is down all the time? I may be wrong but I think it would have to have both pedals down for 4 wheel braking but both up for 4wd? Does that make sense? The 4wd switch would be my first check but it's easy enough to check brake light switches too. Just check that they're clicking as the pedals are pressed.

 

[phil]

Not if one switch was naff or mis adjusted and it thinks one pedal is down all the time? I may be wrong but I think it would have to have both pedals down for 4 wheel braking but both up for 4wd? Does that make sense? The 4wd switch would be my first check but it's easy enough to check brake light switches too. Just check that they're clicking as the pedals are pressed.

Yes I understand what you mean

Didn't realise they were two different things

 

[Grouse]

Nice trailer Phil - what is the all up weight of that ?