Lights on a 990

   / Lights on a 990 #1  

BGL990

Gold Member
Joined
May 15, 2004
Messages
379
Location
Near Edmonton, Alberta, Canada
Tractor
John Deere 990 4x4
Lights, Lights, Lights. Never enough on a tractor it seems, so I added more. This is the source of their power.
I attached a fused, heavy gauge wire to the main battery cable post on the starter (orange wire). From here on
I ran all the wires in that black wire protector stuff so it looks more factory.
 

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   / Lights on a 990
  • Thread Starter
#3  
I followed the factory wiring harness up behind the dash, back down, and across the transmission tunnel. I obviously
removed the cover that is normally over all this stuff. You'll notice that I picked up a ground here as well.
There was a convenient bolt holding on some sort of breather screen (or whatever it is) which I borrowed.
 

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#4  
I followed the factory harness a bit farther under the seat before making an upward turn on the right side of the seat.
 

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#5  
Up under some "bodywork" and follow the ROPS.
 

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#6  
Attaching the actual lights to the ROPS took some thought. Way too much thought actually. I went through a hundred
designs in my head, involving the creation of all sorts of fancy brackets, custom fitted hanger bars, etc, etc.
In the end a simple piece of flat bar with 4 holes in it and ordinary U bolts from the hardware store solved the
problem.
 

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#7  
Another of the mounting bracket.
 

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#8  
I also added a rotating yellow beacon for those dark winter evenings plowing snow where I have to go on the road a bit.
This picture also shows the switch box I made. 3 single pole switches to switch power to the beacon, the front lights,
and the rear lights. The box also serves as a connection point for all the ground wires.
 

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   / Lights on a 990 #9  
All the projects look really well done Brad. How many amps is your alternator? John
 
   / Lights on a 990
  • Thread Starter
#12  
I don't remember offhand the exact output, but the stock 990's alternator is pretty wimpy. Running all the lights will definitely exceed it's output, but I'm not too worried. I ran the front ones for a couple of hours tonight while moving some dirt and then checked the alternator to make sure it wasn't getting too hot. It wasn't even warm. I think the worst case is that I'll drain the battery some, but I can always top it up with a charger if necessary. I put an Optima in the tractor, so it should be able to take a bit more abuse than the stock battery.
 
   / Lights on a 990 #13  
don't take offense...but you know they make square u-bolts, right? i used the 2" ones to mount my lights to my ROPS, and they fit like they were made for it... /forums/images/graemlins/cool.gif
 
   / Lights on a 990
  • Thread Starter
#14  
No offense taken at all /forums/images/graemlins/smile.gif

Yes, I've seen square U bolts, but I didn't see any at the couple places I was shopping at, so I just got these. If I stumble across some, I'll replace the round ones because I agree it would look better.
 
   / Lights on a 990 #15  
Brad,

Slow down with these add-on's to your tractor! You're making the rest of us locals look bad!! /forums/images/graemlins/blush.gif /forums/images/graemlins/grin.gif

Look great! Good job.

Kevin
 
   / Lights on a 990 #16  
Very nice job. Much better then the two rear facing ones I did for the snow blower attachment I just bought.
Still, it will be nice to see where I'm going in reverse.
-Terry
 
   / Lights on a 990 #17  
Nice 990 you got there! Gotta love them. So how many watts or amps are your lights? If they are 50 some watts and you have 4 then I should really think about getting 2 more.
 

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