4630 lights

Anonymous-0 · Aug 31, 2010

recently bought 4630 cant get lights to work ,have blinkers,flashers. no headlights or dash lights. every one told me to check circit breakers and loose conections.

buickanddeere · Sep 1, 2010

You will have to trace the circuits with a multimeter. Replacing parts at random gets expensive and time consuming.
Off hand as a wild guess,maybe the light switch has failed?

tim s · Sep 1, 2010

One of the things I do here for my customers is to make sure the lights all work when the tractor leaves,,most of them are older gentlemen who can't climb around on the cabs checking them or don't have the stuff needed to repair them. On older units (that don't have a circuit board) I use a long hot wire and back feed the power to the lights, this is a quick way to prove the bulb and the ground, if they all work from that direction I start at the other end and prove power supply to the switch, then "from" the switch, then I go to conector plugs, a trouble spot is above the right battery, that set of plugs start growing green mold and then poor contact,,,and then hot spots,,we call this system of checking "finding what we have and have not"...

Tx Jim · Sep 1, 2010

bigjer
First thing I'd do is check circuit breakers on LH side in front of dash. Remove panel on LH side in front of dash/steering column and you'll see panel board with breakers. These breakers are known for getting a little loose then heat from looseness makes them trip or lose connection. Another problem spot is wiring bulkhead on RH of firewall.

J.ReinkeFarms · Sep 1, 2010

My 4430 had the same problem, the wiring for the lights had been cut under the removable panel on the floor pan. A few hours with some solder and shrink sleeve and it was all better.

JDBert · Sep 1, 2010

Check your breakers- on the 30 and 40 series the connections were bolted down straight on to the breaker- they would corrod a tad and like stated heat and trip and burn out or just not conduct at all- it was solved in the 50 series by putting a nut on the stud first then the connection then another nut- dash light I believe on them is a one bulb setup that feeds a series of fiber optic lines that divert the light to the separate gauges- so that bulb maybe burned out as well as the rest of your bulbs maybe burned out. You could also check your dimmer switch. I would say you can check the main connection which is about right under the crawl window on the right side but since you have flashers I doubt your problem lies there.

4630 lights

Anonymous-0

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buickanddeere

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tim s

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Tx Jim

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J.ReinkeFarms

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JDBert

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