worklights on 4510

ktm250rider · Sep 26, 2007

Ive finally broken down and purchased most of the components to add worklights to my 4510. Looks like Im gonna follow some of the others here (kennyd, bloomingtonmike) and use a 30 amp breaker off of the starter to a 30 amp relay to 2 switches on the right fender switch cluster. I would like to have 2, 55w facing forward and 1 (or 2) facing rear.
I noticed that I have an empty receptical in the fuse box for a relay. I cant find any information on it on JDParts or my manual. Could I wire off of this socket with my 30A relay?
I do have a nice bracket above my starter where I could mount the breaker and the relay which may be easier since I wouldnt have to mess around with the rats nest of wires behind the panel.

kennyd · Sep 26, 2007

I would not mess with the fuse panel except for getting you power feed for the relay. The socket you saw probably does not have contact in it anyway...

ktm250rider · Sep 26, 2007

Thats what I figured. I got a really nice spot above the starter to mount everything. If that wasnt there, it would be a different story.
NOw, what wire do I use for the switched power? Gonna have to get my VOM out and do some probing.

bigballer · Sep 27, 2007

Is one 30A relay sufficient to run 4 55W lights at the same time? I want 2 front facing and 2 rear facing and would run 2 switches, one for each "set"..

Thanks!

kennyd · Sep 27, 2007

bigballer said:
Is one 30A relay sufficient to run 4 55W lights at the same time? I want 2 front facing and 2 rear facing and would run 2 switches, one for each "set"..

Thanks!

Yes, one 30 amp relay is fine.

Each 55w light will draw just under 4 amps a piece at 14 volts. So with all four lights on the max draw will be 16 amps. What you need to worry about more is the size of your alternator.

bigballer · Sep 28, 2007

i talked to 2 different dealers today an both said my L3400 alternator (40A) could handle the load of 4 55W lights. One said I could bump up the "work light" fuse to 20A and be good, the other said don't even bother with the panel because the wiring is too small. He said to come off the starter wire (or battery if i wanted to run a longer wire) and then just wire the lights to a switch, he said a relay may or may not be needed depending on the switch, apparently there are some switches that have built-in relays.. i think i would rather play it safe and use the relay.. i'm going to try to get this done this weekend.. darkness is coming..

kennyd · Sep 28, 2007

First, the first dealer who told you to "bump up the fuse" is STUPID! Will he fix your tractor when it melts down? Unbelievably BAD advice as I think you already figured out.

Your 40amp alternator is perfect for the job!

There are no switches with built in relays, but there are 20 amp rated switches that will handle the load, but you will still want to add the relay, and power it from the fuse box so that when the key is OFF the relay is de-energized.

Let me know if I can help...

Kenny

bigballer · Sep 28, 2007

thanks for the offer kenny, i am planning on the relay and NOT going into the existing fuse for the work light. i still need to figure out the connection from the switch back to the fuse panel though.. everything else is clear in my mind but that.. would i run this to the worklight fuse or some other?

kennyd · Sep 28, 2007

bigballer said:
thanks for the offer kenny, i am planning on the relay and NOT going into the existing fuse for the work light. i still need to figure out the connection from the switch back to the fuse panel though.. everything else is clear in my mind but that.. would i run this to the worklight fuse or some other?

Here is something I clipped from another post when I was helping another member:

Pin 30 = Power in from the breaker/fuse - 10 guage wire
Pin 85 = To Ground
Pin 86 = To ignition switch - On position
Pin 87 = To light switch on fender

I would not use the worklight fuse at all, just find a fuse in the panel that is HOT only when the key is ON and run a small wire rom there the the # 86 lug on the relay.

Clear as mud

Here is the POST where I detailed my install...

bigballer · Sep 28, 2007

ok getting clearer

- was trying to come up with a diagram but didn't see where you called out the wire from the lights, pardon my ignorance.. i did a quick search and came up with this link... the pinouts on the relay are wired a bit differently than you called out but figured they could be swapped. How does this compare to what you did with the actual light wires?

http://www.classictruckshop.com/clubs/earlyburbs/projects/bosch/foglite.jpg