electrical schematics

Started by kat, May 29, 2007, 01:04:11 PM

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kat

May 29, 2007, 01:04:11 PM Last Edit: January 01, 1970, 12:00:00 AM by kat
does anyone have a copy of the electrical schematics for an oliver0c3 with the 3 cylinder gas engine handy?
seems to be a dead short in there somewhere and i just cant find it,
color would be nice for my old eyes also
 thanks......

walter hudson

oc3
#1
May 30, 2007, 02:09:23 AM Last Edit: January 01, 1970, 12:00:00 AM by walter hudson
All oc3 crawlers came with a 4 cylinder engine . You probably have a oc4 . What is shorted out  . The ignition or charging system ? They came with a positive ground system .
Walter

kat

#2
May 30, 2007, 06:16:27 PM Last Edit: January 01, 1970, 12:00:00 AM by kat
my mistake it is an oc4,,, need to proof read..
anyhow,,i'm not sure where the short is,,  i have the generator off,, and  ignition switched off and key removed.. but  something is killing my battery,, when i try to jump it.. just connecting jumper cables to the battery creates a huge spark like somethings drawing power  or grounded.  and yes it's stll hooked up as an six volt system with pos.ground.. so i'm thinking it might be ignition.....
 any ideas?

Jim N

#3
May 31, 2007, 02:02:38 AM Last Edit: January 01, 1970, 12:00:00 AM by Jim N
To me, it sounds like the starter solenoid is stuck or welded closed ,,,  maybe the starter bendix is jammed.  ...or both.
Take a battery voltage reading.
Remove the large wire to the starter and take another voltage reading.
You will see an increase if the starter is stuck  "ON".

That big of a spark without blowing a fuse tells me to look there first.
A List of My Toys :   58 Oliver OC4-42-IND Dozer,       50 Farmall Cub,     54 Farmall Super C,    69 JD 112,   75 Wheel Horse C-185 Electric,    72 Honda Trail 70,   75 Cadillac Eldorado Convertible,  71 Triumph TR6 Convertible, 08 Harley Davidson Road  King Classic,  70 Seafarer 23 Sailboat

kat

#4
May 31, 2007, 07:11:16 AM Last Edit: January 01, 1970, 12:00:00 AM by kat
i'll try that,,,,
but i'm not sure thats it, once the cables are hooked up you can turn the key and turn the engine over as normal,, but it will kill the battery of what ever you jumped it off of...?
but i'll still check,,, and fuse? ,,what fuse? this thing has a rats nest of wires from way too many home  rewireing jobs before i got it..

walter hudson

oc4
#5
June 01, 2007, 03:00:18 AM Last Edit: January 01, 1970, 12:00:00 AM by walter hudson
If you have a butchered wiring harness ,you may want to start from scratch and make a new one . It is not very difficult . Check your battery cable to the starter .The original had a metal shield which could of worn through the insulation.
Walter

kat

#6
June 02, 2007, 03:46:20 PM Last Edit: January 01, 1970, 12:00:00 AM by kat
well, yes. makeing a new harness would probally solve most of the problems .. however.since i have no idea on how  to do it , thats why i was/am looking for a copy of the electrical schematics ,, so i'd atleast have something to look at and see where i'm going wrong......lol

John Schwiebert

#7
June 03, 2007, 01:27:50 AM Last Edit: January 01, 1970, 12:00:00 AM by John Schwiebert
Are we talking a crawler built in  cLeveland or a Series B built in Charles City?
John Schwiebert
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