Headlight switch for m915a1 - Page 2 - Steel Soldiers::Military Vehicles Supersite

reb87 · 03-30-2011, 22:46

Im guessing the orig switch is only used for energizing a relay(which actually handles the load)I suppose there would need to be a circuit breaker added to work with the relay...

Fixlinc · 03-30-2011, 23:36

Yes Reb87 would use a dependable circuit breaker or fuse to power the relay. Then the switch only switches the relay which actually switches the power for lights or whatever.

Using Relays To Wiring Off Road Lights And Accessories

I have some more links to switches and relays but it keeps timing out on me here. On ours just standard truck toggles but will use relays and circuit breakers I can buy easier local.

Fixlinc · 03-30-2011, 23:41

Relays, switches and circuit breakers I have in mind for now.

RELAY,70A,FORM_A,12V,DIO_BRKT

4 POLE 4 CIRCUIT HEADLAMP SWITCH, 8 BLADES, LONG HANDLE

http://www.elecdirect.com/Data/ProductPDFs/CHb8.pdf

Cole Hersee Circuit Protection and Wiring Accessories : ElecDirect.com

Fixlinc · 03-30-2011, 23:46

Can get these in 6, 8, 10 or 12 gang. What I'm using to add some 12V circuits to our M35A3 another one converted to a fire truck.

FOR PLUG-IN BREAKERS & FUSES, COMMON HOT FEED ONLY, 8-GANG

docfarmall · 03-31-2011, 16:04

I gotter boy's the replacement switch for the lights can be bought at Advanced auto #S440 got mine today. If you need one pm me and i will get some in.

hoopsoft · 03-31-2011, 18:49

So its this an exact replacement, will it have the same problem of being under rated?

docfarmall · 03-31-2011, 21:56

i will find out in a few hours as i am pulling out at 05:00 for Columbus Ohio

cornrichard · 06-12-2011, 16:02

My 915a1's are all having light switch problems. I dug into two trucks today. The marker light circuit was getting SUPER hot on both trucks.
On one truck the terminal block was melted so bad I had to cut the marker light section out with tin snips. The other truck was almost as bad but it looks like the switch died before it could finish off the plug in.
I put in a circuit breaker and relay to take the load off the marker circuit.
I got the power from the circuit breaker panel.
In the pictures I have the wire on the wrong group of breakers. There are two groups of three breakers. One group is switched with the key, the other is constant hot. I moved to the constant hot so I could use the parking lights without leaving the key on.
As soon as I can get a new headlight switch both trucks should be A OK. I got all the 30 amp breakers and relays my parts store had, so the other trucks will have to wait their turn. This is a easy job that takes about an hour.

deuceman51 · 06-12-2011, 17:08

Guys, I have the parts now to make the MWO kits for the M915A1 headlight problem, but I have been deployed for flood duty in my state for the last 2 weeks and I might not be released until July now. As soon as I get back I will get the kits made up and should have an idea on the cost for everyone that is interested.