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#1
18-05-20, 15:48
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Scanned copy of
Service Information Bulletin #51, May 3, 1943 Trailer Brake Installation
__________________
Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer 
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#2
18-05-20, 16:56
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I know this is getting picky but that is a vacuum brake system for the trailer as opposed to air (pressure) brakes to go with the vacuum boosted system of the heavier CMPs. It does make sense to use the same power source for both. Also, I'm not aware of any CMP equipped with air (pressure) brakes except some trailers (usually towed by larger vehicles than CMP 3 tonners). As always, happy to learn more - even if it proves me wrong....
Last edited by Grant Bowker; 18-05-20 at 19:03.
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#3
18-05-20, 19:04
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Trailer air brake line
Quote:
I thought I had seen pictures of the trailer air brake line setup on this forum before. I recalled it was for actuating trailer brakes, not boosting thr truck's brakes. If it was a pressurised system, the truck would have to be equipped with a compressor but I see no signs of that.
__________________
Regards, Hanno --------------------------
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#4
10-07-23, 17:12
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US trailer socket
Jordan found a wartime photo:
"Interesting detail on the back side of this C15A. Check out the US trailer socket." 358388543_10158959598411783_6390413979413751128_n.jpg
__________________
Regards, Hanno --------------------------
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#6
10-07-23, 20:18
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Quote:
IMG_1031.jpeg
__________________
Regards, Hanno --------------------------
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#7
11-07-23, 05:00
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My failing memory tells me......
....that early CMPs had a single wire connection directly behind the tow hook partly shielded by a small piece of sheet metal....... the female connector would have been very similar to the trouble light socket installed in the dash of cab 11/12...... not enough wires to see where or how connected to the main wiring loom....but easy enough to approximate.
Grant may remember our findings such remains on old rolling chassis..... it may have only been used for brakes or for convoy lights???? Never seen any printed information.
__________________
Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada
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#8
11-07-23, 07:10
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trailer wiring plug found on CMP
Photos of what I believe is a CMP trailer wiring connetor are at http://www.mapleleafup.net/forums/sh...206#post256206 (13th post in the thread)
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#9
18-05-20, 18:59
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Quote:
__________________
Regards, Hanno --------------------------
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