Thwaites M466 6Ton dumper

[paul366]

Hi need some help fixing a few problems on this dumper for a local farmer get it running

Need the following if possible

Wiring diagram for this model
What cables go to the connections (positive and negative earth pin) on the starter motor (he bought this and the motor was off)
is there a cut off trip on this machine and do you know the location

Thanks for the help

 

[V8Druid]

Hi need some help fixing a few problems on this dumper for a local farmer get it running

Need the following if possible

Wiring diagram for this model
What cables go to the connections (positive and negative earth pin) on the starter motor (he bought this and the motor was off)
is there a cut off trip on this machine and do you know the location

Thanks for the help

what engine?
std pre-engage or Hi-energy/inertia starter ?
a few pix might be helpful

 

[paul366]

what engine?
std pre-engage or Hi-energy/inertia starter ?
a few pix might be helpfuwhat engine?

std pre-engage or Hi-energy/inertia starter ?
a few pix might be helpful

 

[paul366]

Thanks for the reply It's an Inertia starter pic attached

sorry i'm not sure of the engine as its in a shed and wont be able to get to it till tomorrow will post it then have tried a search from the V.I.N but no luck on the plate its a 61.5 kw engine

 

[V8Druid]

can't decide if that is Hi-energy or conventional pre-engage from that pic.
some of the Perky motors with conventional pre-engaged starters had a separate earth to starter (not a big one) and starter would not function without it

 

[paul366]

yes this has an earth pin on the case at the back that has a direct feed from the ground isolation switch seems to be the only ground on the engine non on the chassis and the positive from the battery goes to the main feed on the solenoid pin no other feeds off the positive battery terminal .

i have identified the positive send from the ignition switch to the solenoid trigger . There are two additional cable feeds in the harness at the starter motor. I'm assuming one is a positive jump to the electrics dash / fuel cut off etc and the other is a negative jump to same. If i had a wiring diagram i think i could trace them But as i'm not very experienced in vehicle electrics just want to check before i connect them

 

[Gecko]

can't decide if that is Hi-energy or conventional pre-engage from that pic

Look how slim the body is. It's smaller diam than the mounting bolt pattern. Definitely a reduction drive starter.

The starter pictured above is probably this one?

Perkins 2873K405 Starter Motor P95 - DFJ Automotive

Brand new planetary gear reduction starter motor. Next day delivery UK. Online ordering or call us. Express delivery options.

www.dfjauto.com

There are two additional cable feeds in the harness at the starter motor. I'm assuming one is a positive jump to the electrics dash / fuel cut off etc and the other is a negative jump to same.

I'd expect all those cables to be positive feeds and will bolt up with the battery cable on the solinoid.

For info, this is a Bendix (inertia) drive

 

[paul366]

Thanks for the reply Just back from doing a little bit of work on it. Traced the cables in the loom
One big one positive obliviously main feed.
A double cable red positive feed are supply jumps to the dash and fuel cut off.
And two green one white strapped together are the negative feed to the forward / reverse motion traction box and the tip turn mechanism. Connected up and running. But still have a few problems with the electrics if any one has a wiring diagram
Forgot the get the engine ID will get that tomorrow and post it then
Thanks

 

[V8Druid]

Look how slim the body is. It's smaller diam than the mounting bolt pattern. Definitely a reduction drive starter.

The starter pictured above is probably this one?

Perkins 2873K405 Starter Motor P95 - DFJ Automotive

Brand new planetary gear reduction starter motor. Next day delivery UK. Online ordering or call us. Express delivery options.

www.dfjauto.com

I'd expect all those cables to be positive feeds and will bolt up with the battery cable on the solinoid.

For info, this is a Bendix (inertia) drive
View attachment 69329

only just ..... I'd expect a Hi-energy/reduction to be a good inch smaller TBH

can't recall the last time I handled a Bendix type inertia engaged starter

 

[Gecko]

only just ..... I'd expect a Hi-energy/reduction to be a good inch smaller TBH

M127 for size reference. Mahl PGR showing the rear earth stud

 

[V8Druid]

M127 for size reference. Mahl PGR showing the rear earth stud

View attachment 69347

when you put it like that
conventional pre-engage is a hell of a lump .... been a while since I've handled one