Two Wires in My Cab L5740...what are they?

moship · Feb 27, 2018

Old Red said:
Thank you and others so much.... I would love to have a dome light that would actually allow me to see in my cab. I will search to see what you put in there. Stay tuned...

Old Red,

Check out the later posts here: http://www.tractorbynet.com/forums/kubota-owning-operating/388386-led-light-replacement-cab-m7040-2.html

The pictures of the light output doesn't do it justice.

I used the same bulb/conversion kit, but sourced it from amazon. For reference: Amazon.com: Ozg-motors Dome LED 48 T1 BA15S 12V Bulb Light Panel Conversion Kit: Automotive

Hope this helps.

The Fred · Feb 27, 2018

Old Red said:
Oh yes....cool....I didn't even notice that they were so easy to remove..Here are the adapters I fished out of there.....I did read a few different manuals today trying to figure some things out to decrease all my newbie questions...But that is handy it is all wired up already. I'll definitely be adding some LEDs when I figure it all out....on my Lil Bx I ran a whole new harness. When sitting in the tractor...over my left shoulder there are two sets of female spade adapters and over my right shoulder there is one set of spade adapters. Both are in the interior of the cab.

Does anyone know what these two connectors go to?

View attachment 541719 View attachment 541720

If you pull the roof off accessibility is far better you will see there is a relay missing for that circuit if I remember correctly.

PM me your email I can send you the workshop manual but it's quite large 335 MB and Skype might work better.

moship · Feb 27, 2018

Below is the wiring diagram for a GL40-3 cab tractor. Hopefully this will help the OP and anyone else.

For reference this manual is from Feb 2015.

Old Red · Feb 27, 2018

Thanks.....I found the harness in the rear for the rear work lights...as everyone said it was taped up alongside the flashing lights. I have ordered a rear switch from Messicks - part number T1065-75370.

The other sets of wires.....I have not looked at this diagram yet but I suspect wiper blades and then defrost. I will study the schematic in a bit. I also ordered the dome light with the 48 LEDs on a pad. Lots of good reviews there. I hate not being able to see. I was really pleased with the forward and reverse LEDs I installed on my Bx but it does not appear like they will fit the mount where the factor forward up lights are...I will figure something out up there as there are plenty of threads on that.

How about the internal driving lights on the grill? What did most of you switch to there? I watched the 40 minute video from P and K Short.....I was hoping there would be more of a plug and play type light that would not require as much effort in those....seeing the loader will be on basically 100% of the time the lights here are not near as important but the OC (I leave out the "D" because it is not a disorder) wants the light color to match.

edit:
If anyone wants to share the light pods you used for the front and rear and you don't mind sharing.....

nybirdman · Feb 27, 2018

I haven't seen the need to change the grill lights after installing the roof mounted LED's;plenty of light.

Old Red · Mar 1, 2018

So I took apart the upper work lights last night and discovered an H3 bulb in there. What a weird little bulb. They make some high powered LED H3 replacements with the little fan motors on the back of them, however they ain't gonna fit inside that work light housing. I found another LED drop in that I think will fit but not as powerful. Gonna give it a shot and see how it works. My suspicion is that it will improve but still probably not enough.

In the meantime, just out of curiosity, I ordered a pair of those LEDs with the fan motors in them to drop in the Bx forward lights....there is no sense in it as the stupid things will just blind me reflecting off the bucket of the front end loader, but I just wanted to see them. They will most likely end up on the grasshopper.

nybirdman · Mar 1, 2018

Off-Road LED Work Light/LED Driving Light - 6" Rectangle - 13W - 1,3 Lumens | Back Up Light Bulb | Super Bright LEDs

I replaced the whole light with one similar to this one;not just the bulbs.Can't find the exact one that I purchased(18watt),measure the bracket and find one to fit.

Complete Turf Care · Mar 3, 2018

I'm going to add rear work lights to my L5740 because I have a big job coming up and I may be working at night.

I have a few questions.

1. I found this connector behind the existing switched in the cab. There may be another, but I didn't see it. Is this the connector for the rear work lights?

2. The next pic is from inside the cab and shows wires hanging out on the right rear corner of the cab. Are any of these wires for the rear work lights? Old Red said he found his work light wires taped to the flasher light wires. I have not looked there.

3. I found the switch at Messicks, thanks Old Red, but it doesn't show the area that plugs in, so I can't tell if the switch will plug into the plug I show in the above pic.

nybirdman · Mar 3, 2018

On my L4240 HSTC;the very left blank is the rear light connector;the wire for the rear lights connector is out-side taped to the caution light wire.I am guessing the inside connectors are for a rear wiper or window heater.There may be another connector located in the switch panel(not sure).
If you use after market LED's you will have to splice or find the correct connector to the factory harness.I would recommend LED's for sure.Check my link to SuperBrights in this thread.
Mine are 18watt and lots of light.You want flood not spot LED's.

Old Red · Mar 3, 2018

CompleteLawnCare said:
I'm going to add rear work lights to my L5740 because I have a big job coming up and I may be working at night.

I have a few questions.

1. I found this connector behind the existing switched in the cab. There may be another, but I didn't see it. Is this the connector for the rear work lights?
View attachment 542308

2. The next pic is from inside the cab and shows wires hanging out on the right rear corner of the cab. Are any of these wires for the rear work lights? Old Red said he found his work light wires taped to the flasher light wires. I have not looked there.
View attachment 542309

3. I found the switch at Messicks, thanks Old Red, but it doesn't show the area that plugs in, so I can't tell if the switch will plug into the plug I show in the above pic.

Just so happens I just worked this project yesterday and this morning a little. My switch came in from Messicks yesterday.

The rear work lights wiring harness that you want to tap into so that you can install your rear lights....it is taped up in black electrical tape along with the rear lollipop flashing lights wire. Cut into that tape where it gets "fat" and that is your connector for your rear work lights. Secondly.....behind the switches you have there.....when you get your light switch from messicks....there is only one adapter inside there that will fit your new switch. There were 3 or 4 total wire plugs in there...You will find the correct one....and it is the only one that will fit your new switch.

Also, when you call messicks to order your switch...make sure you call them and ask for USPS shipping to save a little money on shipping costs....online shipping choices are expensive.

So I have decided to remove the "lollipop" lights and use that spot for my rear work lights. My buddy is a state trooper and he said I am still legal in KY on the road with my rear flashers that are on the fenders. Not that I drive on the road much.....and this spot where the flashing lights are is so dang easy to use. I am turning my LED rear work lights under as shown in the picture to minimize running into limbs.

When you click on these they will turn correctly.