Macdon M150 Light issues.

[TOM4CWB]

BTW,

My suggestion though radical removes the problem by requiring only miliamps... trigger amperage to relays is minuscule... from 15-20 amps. Plus the relay and breaker do not need to be in that fuse box where all the trouble is. put in a breaker/relay junction box like we use on highway equip. and make sure to put info into manual and factory fuse box to alert folks to mods.

We run both a 2008 M150 and 2012 W150 with NO problems... strange how these problems are specific to limited select units. JD in Camrose WOULD NOT sell me one of their W150 units... that would burn out the wiring harness... so it is unit specific not a problem on all MaDon units.

[farmaholic]

Tom, I took not of your solution. The system has a series of fused and circuit breaker power sources that trigger relays to supply power to what is in their circuit. I honestly wouldn't know where to safely splice in.

This unit was bought brand new by us. We made absolutely no modifications. The problem may be unit(s) specific but there has to be a cause... and that is what I'm looking for. The fact that there were changes to the same model in subsequent years says they know there was an issue.

In today's day and age one would think the engineers would known the limitations of components, singularly and grouped, this isn't new technology and FAR from my strong point.

Thanks for the input though.

[farmaholic]

If anyone is going past their swather could you please look inside the fuse box and see what size circuit breaker(mine are circuit breakers!) is at F15 and F16.

Thanks in advance.

[TOM4CWB]

Farmaholic,

Pull power direct from the battery... no risk in your own breakered power supply... and trigger the field lights with present controls... but supply lights with you own circuit breakered new power source to run them. A simple fix... yet last resort for most.

The problem is in their MacDon wiring harness it seems... not breakers in their system.

[farmaholic]

Are you saying the gauge of the wire may be a little light for the draw placed on it in some places.

I will be looking for components that have shared functions because all the lights go out and there is kind of two different circuits. Some shared components are actually the light switch itself but also some relays get tied together into the system. Maybe the coils in the relays cant be held closed anymore. Grasping at straws.

[farmaholic]

Tom, F15 & F16 had 20 amp circuit breakers in them and the panel diagram inside the cover even has them listed.

[farmaholic]

Ok.... found a loose ground under the roof panel accessible from righthand headliner panel that has radio in it and the A/C controls. The ground point is a stud right under the antenna mount....

Hope this does it. A loose ground is never a good thing.

Thanks for all the input.

[TOM4CWB]

Farmaholic,

Hope that fixes it! Bad grounds are bad news!!!

[farmaholic]

The nut was so loose it could be turned off by hand. You could easily wiggle the eyelet on the stud. We wired brushed the surface, put on some dielectric grease and put it back on tightly.

[farmaholic]

Forgot to say, this may not solve the whole problem but it likely wasnt helping matters either(AT ALL). Agree bad grounds can cause alot of issues. Hope this whole exercise maybe helps someone else...