electric braking once more HELP!!!!!!!

CCKW Trailer Technical and Repair Questions. Restricted to Trailers pulled by CCKW's /Chevy's/ and other 10 wheel trucks.
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KEVINABR
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electric braking once more HELP!!!!!!!

Post by KEVINABR »

Hi guys
where here once more, I have been unable to find Electric Brake controller, so what else could i use please ?????
Many thanks
1941 GMC 352 A1 Cargo 29595
1942 GMC 353 F2 Workshop 102620 ST6 Type M18 Electrical Repair
1942 GMC 353 B2 Cargo
1942 Ben Hur 1ton Wooden Cargo Trailer
1942 Chevrolet G506 G7113 Tractor 1NK 245837
1944 5ton The Trailer Company of America, Stake and Platform Semi Trailer
1943 Dodge WC63 6x6 82035401
194? Diamond T 968a 968A7471
PFC 514th Q.M T.C We Deliver Everything, Except Babies
dr deuce
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Post by dr deuce »

You running 6v or 12v?

The original is a giant, high wattage variable resistor using multiple metal strips. The modern ones are all electronic and run on 12v

12v is easier. You could use a modern controller and wire the wheel magnets in series per axle. The US standard for a recreational vehicles is about 3 amps per wheel (6 amps per axle).

6v is a bit harder with modern stuff. You would probably need something custom.
Dr Deuce Over 50,000 driven miles in a CCKW
1942 CCKW closed cab shopvan
1943 CCKW closed cab cargo w/M32 MG mount
1944 CCKW open cab LeRoi Kompressor
1944 CCKW open cab F1 Aircraft fueler tanker
1945 CCKW open cab cargo w/artic cab
1942 Chev cargo
1942 Chev K51 Panel
1944 Chev M6 Bomb Truck
1942 GPW Jeep
http://home.comcast.net/~cckw/wsb/html/ ... 59870.html
KEVINABR
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Post by KEVINABR »

Hi Doc
Im running on 12v (alternator)
will have to locate controller stateside if you know a good store i'd be grateful.
having trouble this side as it seems that nobody is interested or does n't know what im on about
many thanks
kevin
1941 GMC 352 A1 Cargo 29595
1942 GMC 353 F2 Workshop 102620 ST6 Type M18 Electrical Repair
1942 GMC 353 B2 Cargo
1942 Ben Hur 1ton Wooden Cargo Trailer
1942 Chevrolet G506 G7113 Tractor 1NK 245837
1944 5ton The Trailer Company of America, Stake and Platform Semi Trailer
1943 Dodge WC63 6x6 82035401
194? Diamond T 968a 968A7471
PFC 514th Q.M T.C We Deliver Everything, Except Babies
dr deuce
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Post by dr deuce »

Which trailer(s) are you running/towing

A modern RV brake controller runs about $80 over here
Dr Deuce Over 50,000 driven miles in a CCKW
1942 CCKW closed cab shopvan
1943 CCKW closed cab cargo w/M32 MG mount
1944 CCKW open cab LeRoi Kompressor
1944 CCKW open cab F1 Aircraft fueler tanker
1945 CCKW open cab cargo w/artic cab
1942 Chev cargo
1942 Chev K51 Panel
1944 Chev M6 Bomb Truck
1942 GPW Jeep
http://home.comcast.net/~cckw/wsb/html/ ... 59870.html
KEVINABR
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Joined: Mon Nov 13, 2006 1:08 pm
Location: RAMSGATE ENGLAND

Post by KEVINABR »

Hi Doc
i 'll be towing M7 directors but $80 sounds good to me.
Thanks once more
Kevin
1941 GMC 352 A1 Cargo 29595
1942 GMC 353 F2 Workshop 102620 ST6 Type M18 Electrical Repair
1942 GMC 353 B2 Cargo
1942 Ben Hur 1ton Wooden Cargo Trailer
1942 Chevrolet G506 G7113 Tractor 1NK 245837
1944 5ton The Trailer Company of America, Stake and Platform Semi Trailer
1943 Dodge WC63 6x6 82035401
194? Diamond T 968a 968A7471
PFC 514th Q.M T.C We Deliver Everything, Except Babies
Bill_Wolf
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Post by Bill_Wolf »

Kevin,

In my opinion this one is the best. it is digital but can be hidden. It is what I am using on my personal vehicle.

http://www.tekonsha.com/prodig.html

There are others.

Try a google of brake controllers.

Bill
dr deuce
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Post by dr deuce »

I just measured my M5 Bomb Trailer brake line with a not too expensive ohm meter and came up with about 3.3 ohms for the two electric brakes in series (wired for 12v).

That calculates out to about 7.5 amps for 2 axles with 4 brakes wired in a series per axles with the axles wired in parallel. So a 10 amp breaker with the controller (capable of 30 amps) Bill mentioned would be fine on 12v.

Steve
Dr Deuce Over 50,000 driven miles in a CCKW
1942 CCKW closed cab shopvan
1943 CCKW closed cab cargo w/M32 MG mount
1944 CCKW open cab LeRoi Kompressor
1944 CCKW open cab F1 Aircraft fueler tanker
1945 CCKW open cab cargo w/artic cab
1942 Chev cargo
1942 Chev K51 Panel
1944 Chev M6 Bomb Truck
1942 GPW Jeep
http://home.comcast.net/~cckw/wsb/html/ ... 59870.html
KEVINABR
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Post by KEVINABR »

Many thanks Bill & Steve
have looked at web site for controller and will be ordering one very shortly.
will keep you posted
kevin
1941 GMC 352 A1 Cargo 29595
1942 GMC 353 F2 Workshop 102620 ST6 Type M18 Electrical Repair
1942 GMC 353 B2 Cargo
1942 Ben Hur 1ton Wooden Cargo Trailer
1942 Chevrolet G506 G7113 Tractor 1NK 245837
1944 5ton The Trailer Company of America, Stake and Platform Semi Trailer
1943 Dodge WC63 6x6 82035401
194? Diamond T 968a 968A7471
PFC 514th Q.M T.C We Deliver Everything, Except Babies
dr deuce
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Post by dr deuce »

If you are planning on running directional lights along with the electric brakes and the original WWii 4 pin trailer connector:

Ground
Running Lights
Right Stop/Directional
Left Stop/Directional
Electric Brake

Hey, wait, that needs 5 wires.....

See http://www.cckw.org/trailer_wiring.htm
for my trailer brake converter that covers both the M5 Bomb Trailers and M1/M7 and varient trailers.

It works quite well.
Dr Deuce Over 50,000 driven miles in a CCKW
1942 CCKW closed cab shopvan
1943 CCKW closed cab cargo w/M32 MG mount
1944 CCKW open cab LeRoi Kompressor
1944 CCKW open cab F1 Aircraft fueler tanker
1945 CCKW open cab cargo w/artic cab
1942 Chev cargo
1942 Chev K51 Panel
1944 Chev M6 Bomb Truck
1942 GPW Jeep
http://home.comcast.net/~cckw/wsb/html/ ... 59870.html
KEVINABR
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Posts: 412
Joined: Mon Nov 13, 2006 1:08 pm
Location: RAMSGATE ENGLAND

Post by KEVINABR »

Hey Doc
i looked at your diagram earlier and yes thats the way i ll go so thanks once more great stuff....
this is just the best site :D :D
kev
1941 GMC 352 A1 Cargo 29595
1942 GMC 353 F2 Workshop 102620 ST6 Type M18 Electrical Repair
1942 GMC 353 B2 Cargo
1942 Ben Hur 1ton Wooden Cargo Trailer
1942 Chevrolet G506 G7113 Tractor 1NK 245837
1944 5ton The Trailer Company of America, Stake and Platform Semi Trailer
1943 Dodge WC63 6x6 82035401
194? Diamond T 968a 968A7471
PFC 514th Q.M T.C We Deliver Everything, Except Babies
redleg
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Re: electric braking once more HELP!!!!!!!

Post by redleg »

Cheeck this out: http://www.cckw.org/pdf/t261b_controller.pdf . The dash load control can be found at Gary's Halftracks. The stearing column unit appears from time to time on auction sites such as ebay. You need both controllers to make the system work properly.
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