Macdon M150 Light issues.

[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...

[Jay-mo]

Farmaholic,yes, my fuse panel is covered in dielectric grease.
I have thought of the ventilation angle as well. It wouldn't even need to be air conditioned. Although that would dry the air.
I hope your bad ground fixes the problem but my experience says it will make no difference to the main problem.
The diagrams you posted look like the same song and dance I was given. Changing those 20amp to 30 made absolutely no difference.
With that cover off I swathed some nights this fall with the temperature in the mid 20's without a single problem.
In similar conditions, with the cover on, it would have kicked out in less then 10 mins.

[Buzzard1956]

I'm having light issues with my Macdon M155 swather. Quite similar to what you folks have been describing.


Our dealer is suggesting a new wire harness, which is fine if it solves the problem. Did you folks ever resolve you light issue?

[farmaholic]

Hey Buzzard. We needed a couple of things done tonour M150. The cab display unit needed replacing and that damn light issue. They replaced the light switch and I beleive thats all to resolve the circuit breaker tripping issue. The "apprentice" did some night swathing and it never tripped on him once. Although I think the circuit still gets fairly warm. I would have to take a closer look at the old work order for more details.

Engineers should build in extra capacity not "just enough".

[Guest]

Farmaholic,yes, my fuse panel is covered in dielectric grease.
I have thought of the ventilation angle as well. It wouldn't even need to be air conditioned. Although that would dry the air.
I hope your bad ground fixes the problem but my experience says it will make no difference to the main problem.
The diagrams you posted look like the same song and dance I was given. Changing those 20amp to 30 made absolutely no difference.
With that cover off I swathed some nights this fall with the temperature in the mid 20's without a single problem.
In similar conditions, with the cover on, it would have kicked out in less then 10 mins.

could you imagine the safety recall if this was in a vehicle ?? farmers just don't matter

[LEP]

When they say something is engineered it is design to be as thin, light or on the verge of failing but most times won't. With very little margin for error.

Frickin engineers

[Buzzard1956]

Thanks for the information.... I really don't think the new wire harness is going to do the trick....