New holland 7740 info

[acorn]

Help needed. Does anyone in tff land have a wiring diagram that they would be willing to share.

Acorn

 

[forblue]

Yes but remember they are b/w not colour also what model s-sl-sle and is it pre-quad or quad 16x16- dual power-non dual power-edc

 

[acorn]

Its sle.
I'm unsure of "pre-quad"...... so a picture may help?

 

[agrimax]

With the button on the shuttle,it's a quad mod. But, is the rev counter digital or analogue and are the hydraulics manual or electronic? Top link or bottom link sensing or external lift/lower buttons on the tail lights? It all matters to the wiring diagrams...

 

[acorn]

...analogue dash.....manual hydraulics.....I think top link sensing....no buttons on the tail lights.

 

[acorn]

 

[acorn]

 

[forblue]

Why do you want wiring diagram.

 

[acorn]

I have ongoing issues with the feed to the cab roof, specifically the radio....
...someone has been there before because there is an extra feed directly from the battery.
I have an in house mechanic willing to have a look........if I have a wiring diagram.

 

[forblue]

Try this.

 

[acorn]

Many thanks....I will let you know how we get on

 

[zero]

A few extra earth wires sorted our 40 series. We run a large wire from the dash computer, and another from the computer under the right hand console direct to the battery. Had alot less electrical problems and the radio didn't hiss as much after that.

 

[Lincsman]

Many thanks....I will let you know how we get on

From that it looks like you simply need a new relay.

 

[forblue]

I remember we had a customer whose radio played about and i fitted aerials in different places, tried different radios all during warranty never did cure it completely, another one can't remember if it was radio or processor had a problem, but had to fit a chain to link arms in case it was static and same one it was thought nearby ships radios or radar causing problem. lol.

 

[acorn]

...its a strange one......sometimes only getting 3 volts to the radio.....