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Now that it's warming up been making some progress with the air brake conversion on the m816.

That they do. On our trucks (especially the older 5 tons and deuce) there's really not enough room in the cab for a roll cage. Personally I think a roll bar mounted behind the cab, attached to the frame, would be the best option economically. Like the pipeline trucks. Would require modification...

Those people in Europe doing the truck challenges with the Tatra's and all that, can't tell if their roll cage is tied into the frame or just the cab. Either a reinforced cab or just a roll bar/headache rack attached to the frame would be a nice improvement. I really like the visor idea...

Physically the only thing done today was mounting the QR1 valve. I mounted it on the back side of that crossmember. Centrally located between both wheels on the front axle so they will engage at the same time. Spent the rest of today figuring out the plumbing plans. Besides some more JIC...

5 ton combat rims are a direct bolt on. HEMMT wheels are as well but have a slightly different offset and cost more. all the bolt together wheels are the same width.

Bridge trucks and m123/m125 ran those larger tires as duals. Overwidth yes but it is possible to mount them as duals and run them legally on the road, just gotta pay the permit.

If going with surplus singles: Sizes: 395, 14.00, 16.00 395's and 16.00's will continue to be available for a long time. Main sizes used by the current fleet of military vehicles. These are also the sizes that many of our allies use and are used commercially. Treads: Michelin XL, XZL, XML...

You have to take the weight off to get the air out.

Lift both front tires off the ground and turn from lock to lock with the engine running (takes about 10-20 complete cycles to do this)

Very large U bolts. Can see one on each side of this picture And if you zoom in you can see them in this picture along the frame rail

Well after a couple months of break, finally got around to working on the wrecker again. First thing was the passenger door window. At some point during the winter it came off it's track and fell into the door. Already had some cracks before then but now it needs to be replaced. But that's a...

That 2" ish hose is the low pressure suction from the tank to the pump. I'm relocating the tank on mine to the chassis how wcuhillbilly mentioned so only the high pressure lines will be run through the swivel. All of those are 1".

Spent some time out at the wrecker this morning. Had 3 generators to unload off of 1 trailer, then load 2 of the generators into the bed of a m923. The mep 002a will be going onto my tool/welding trailer. The chain I would normally use for this is about 3ft long but it's currently at a friends...

wow that is slow

The P pump is better, but currently there is not enough air to meet the max fuel of the stock MW pump.

Just bought a used rotary manifold. It's from a Samsung SE350LC excavator, was running when they brought it in and tore it apart. 1 1/4" passages, 4 passages. About 28" tall and 9" diameter so it's tall but don't think there will be any clearance issues with the crane. For the price I...

Remember these are from the early days of hydraulics. They couldn't get the high pressure so they went with high volume to compensate. Haven't measured it but pretty sure it's less than 100gpm. When engaged my engine doesn't even notice the load. Sent from my XT1585 using Tapatalk

Confirmed 1:1 on the tcase PTO speed. Pressure is 2500psi

On a m936 the Tcase PTO, which powers that pump, spins at 1:1. Why not just install the transmission PTO and run a shaft from it to that pump? With the transmission PTO turning at 1.5:1 then the truck doesn't need to run at anymore than 800rpm for absolute max. On my m816 I run the crane...

Yep, 2 QD's on the hoses running from the pump to the hydraulic swivel on the underside of the crane. If I bought one of those 4 passage swivels from a used excavator the 2 extra passages would be used for a set of parallel controls mounted onto the side of the wrecker bed, for just the crane...