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I emailed the pictures on my phone to myself hours ago so I could post them. Figured it might save someone else some trouble. They still haven't arrived in my 'InBox' yet........go figure.

Thank you very much for that parts list!! That went into the folder for that truck as reference. Looking at that parts diagram makes alot more sense now that I've taken it apart and understand the in's and out's of those brakes. I was kind of suprised to find that there wasn't a return spring...

Hey NDT, I had jacked the tire up off the ground to check wheel bearing play. It was when I leaned on the tire with the pry bar that the tire rotated an inch or 2.......with the parking brakes on!! No beuno. I tried adjusting them with the tire on (that's frustrating). I had ordered the...

NDT...writing on the fly. Sorry it doesn't make sense to you, but it did to me at the time. The wedges were 'stroked out'. I took some pics and will post them tonight. Writing from the laptop mounted in my truck. So the rollers went beyond the wedges and got stuck, they weren't retracting...

So I am PMing the forestry tanker for our dept. Jacked up front left drive axle (left intermediate axle/ the one in the middle) to check wheel bearing play. With the parking brakes on, the wheel moved back and forth (the play on the pinion travel). No parking brake engagement from the spring...

Thanks Simp.............I had seen the P2P listed before. I just didn't have the patience at the time to argue with it and get it going. Just got it working after trying for a bit. That really is a great program. If I was the only one driving the truck, then I wouldn't hesitate to remove...

We have an M939A2 that is set up as a wildland/brush fire truck. The boys had the truck out this past weekend and one guy said he wasn't able to build air pressure and another guy who heard 2nd hand the truck would build air but after they shut it off is was leaking out of the air intake and...

Verified that it is indeed the Turbo seal on the exhaust side that has let go and spitting oil in the exhaust...............pictures to follow, but not tonight. Looks like I'll be rebuilding a turbo shortly!! :)

Any idea where to get a turbo and how much it would cost??

Thanks for all of the feedback, guys!!! I really haven't looked the machine while its running. I got this call Friday afternoon after beating myself up on an excavator. I drove up there with the full intention of just taking a pic or two, copying down some info, and then home to a hot shower...

Got a call about an M35A2 that was blowing smoke at idle and mid throttle, and blowing oil out the exhaust. At highway speeds the exhaust cleans up until you bring the rpm's down, and then the smoke comes back. Local garage had changed the oil and added 2 extra gallons of oil to the crankcase...

Replacement Brake chamber and there size for an M123A1C So after Topo brought up the thought that maybe the 30/30 brake chambers might be to small, it starting my own doubts as well. The next size up brake cans would be the 36/36's for the princely sum of about $150/each. And then the...

Neglected to mention that after the adjustment of the clevis at the delivery valve and the road test, I removed the service air line at a rear can and re-measured the air pressure just to make sure I didn't have a PRESSURE restriction at the quick dump or double check valve. Pressure was still...

Results of investigation for lack of braking power So this morning I pulled the SERVICE BRAKE AIR SUPPLY line off of the quick release valve and had a competent person MASH DA BRAKES with 100 PSI of air in the tanks. I had an external air line off of the station compressor charging the tanks...

No, the M123A1C that has been converted to our Forestry tanker is it. We only have a few guys who are qualified to drive it........I should say that I will let drive it. Straight cut gears on the tranny and it seems the latest generation of firefighters has been brought up on Auto Tranny's...

PIC of our Forestry Tanker (BIGFOOT) while doing tank repair last year I have some better photos on the computer at the station. I thought I had some on my laptop, but I can't find them. I will post what I find out about the brakes after I figure out what is going on with them. Anyone know...

Thank you............now if I can get the rest of the guys to see what I see, then the battle would be won. The responses of "....It's always been like that, what's the problem??!!", ".........the truck only goes out on a few calls a year, why the big deal?? " ('cause when you've got 30k of...

Thanks NDT........that was what I was going to try on Monday. And thank you for clarifying what the service line was for me, I wasn't quite sure so that's why I pulled the line right off the can. That way I know exactly what I'm getting at the can for pressure. No guessing!! And thank you...

Found the AIR BRAKE CIRCUIT DIAGRAM in the Lube Order. Still digging..............

Hey guys...........long time listener, first time caller!! My Fire Dept has an M123A1C that was converted to a forestry tanker. I've taken over as maintenance officer, chief wrench turner a few years ago and noticed that the thing didn't stop for crap. The brakes were WAY out of adjustment, a...