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TM 9-2320-260-20, pg. 8-39

There is an airline plumbed with a shutoff valve to the firewall left of the steering column above the clutch pedal. It is plumbed via the air manifold behind the instrument cluster that also supplies the air gauge, windshield wiper valve and trailer handbrake, if so equipped. I removed mine. My...

Wow! Sorry to hear about your stud misfortune! Glad no one was hurt! Here's my recent tire adventure... Back in February, I converted my M818 to Firestone T831 12R22.5's from Goodyear G177 11.00R20's. The two are comparable in size and the 12R22.5's are a hair less than an inch in diameter...

I tucked mine up against the crossmember directly above the trunnion. I fabricated a special bracket out of some 1/4" steel angle then drilled and mounted the bracket to the crossmember. Both the R-12 service relay and the SR-7 spring brake modulating valve were bolted to the bracket just low...

Go, Man, Go! You're getting there [thumbzup][thumbzup]

Yeah!!! I called those rivets and backing plates every four letter word that man knows to exist!

The rivets are a good time, huh?! What only 30 more to go?:smile: Sorry, didn't mean to make light of the situation. But, been there, done that! Did you grind the heads off or burn them off? With the shape of the OEM backing plates, it was difficult to get an angle grinder in there to get a good...

Some rear brake plumbing shots using the same hose. That's an R-12 relay valve for the service side and an SR-7 spring brake modulating valve all mounted to the cross member centered above the trunnion.

3/8" SAE J1402A Air Brake Hose and its associated fittings. Simple to repair in the field. The fitting just off of the chambers is a swivel to avoid any binding or kinking of the hose during steering.

I put some protective coil around mine for safety's sake.

Do you have the treadle valve firewall mounting plate? It makes the install much easier and reinforces the firewall. Mine came in the brake kit and I believe the kit was from SECO. http://www.secoaugusta.com/index.html

The Bendix manual for the QR1 valve indicates the valve should be mounted vertically with exhaust port down. I don't know if that makes a difference in performance or if that is to keep contaminants out. I used a an LQ4 proportioning valve on my front.