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Mack Technician

Pedigreed Bulldog
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Mack Technician last won the day on January 10

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About Mack Technician

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    BMT Certified Know-It-All!
  • Birthday 03/15/1975

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  • Location
    Northern Wisconsin
  • Interests
    Music, Outdoor Adventure, Shooting Sports, Hard Water and Soft Water Fishing, Biblical History and Ministry.

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  1. I'd argue it's a good system if the salesman specs it to the right application. We never had a frame crack on the trucks we ordered. I'd guess if anyone could bust one it would be a Michigan Log Train. The installs were on CL733's, long bed with Serco 8500 loaders, Cummins ISX, Rockwell full lockers, double framed, with a pintle plate closing the rear of the rails. The log racks were unitized w/8 point attachment and not free standing cribs, so that also adds frame strength via the one piece bed. On the other hand the amount of roll-over stress on an "Axle-up" turn should have still been able to break the frame if it was capable? IMO-Bouncing through the woods down a frozen snowmobile trail, for miles, with an overload constitutes a proving ground. Axle cracking is the real issue with the heavy set-ups. I've seen guys in the shop with the same truck set up (as above) and Hendrickson Z-member (loaded) air suspensions pull up their pusher & tag axles and the "Z" became a flat "------" under load. Those guys usually would crack the axle housing under the Z spring support pedestal. Camelbacks and Raydan grab a lot of the axle housing at the anchor points so they never seem to crack it. The Z spring guys also often get water in the axle before the cracks are found (hidden under the receiver), so now your putting a bearing kit in the diff while your fixing the spring pedestal cracks. Eventually Mack made a weldable Z-pedestal and less cracking happened. The crux of the issue with heavy vocational is axle tunnel crush from the spring u-bolts being compounded with overload on the same area of the axle. The U-bolt is pre-crushing the axle tube on the same spot your load is trying to snap the axle housing at. If your overloading you want a suspension with no u-bolt distortion, only weldment attach points. Camels and Raydan don't crush, so now your tunnel isn't being distorted before the load is applied. I had to pull the main members on one Raydan and re-bush the forward eyes on each side. I was able to do it with no special tools beyond our press. I really like the set-up. Simple, Beefy. I wonder if the salesman may have witnessed breaks with a Canadian Spread, if they make them? That would compound the front anchor twist against the frame esp with a shorter turn radius truck. They say you can run it uninflated if you blow a bag or have an air problem.----I'd guess you will also get less axle tip and less driveline vibration when the suspension of the link goes flat?
  2. We used to spec the Raydan (Air Link) suspensions in our Michigan log trains. Tough & Reliable, basically the “Camelback” of the off-road air suspension world.
  3. Billy’s looking a bit mangy this time of the year...
  4. Did you fix yours without replacing the dash cluster?
  5. It’ll show itself somewhere down the line.
  6. Google “Mack Service Bulletin SB-224-004” for instruction on testing.
  7. Think he is going to need the Hendrickson Chicken Gauge to set it. Google “Mack Service Bulletin SB136012”.
  8. The complete manual is available for free download. Google “Mack emedia”. Choose 1997 on year. Click on the book “5-101” description and keep clicking forward till you have “view” and file will open to view manual for print.
  9. I have a monitor for checking CO level in the upper tank, but that doesn't do you a bit of good. If coolants coming out of the tank after self-leveling clearly something is pushing it. Someone you know works in industry and has a handheld for sniffing/reading air PPM. Got to get it and wand the tank air space after a run period to see what's lingering.
  10. I’d check specs on fuel pressure, make sure it’s tuned and run it. There are still engines, like John Deere’s 13.5 liter that still run terrible cold.....in 2019.
  11. I've been tracking this...…… think he's trying to beat Elon to Mars, but he still needs his own "Area 51". If he applies for a no fly zone over the Maine Veteran's ranch construction project it's confirmed....Fuel, facility, military trained staff, on-site housing, etc.
  12. What's the freezing point of the water coming out of the air tank?
  13. We'll trade, even-ante, Natalie Maines for Adele? Welcome aboard!!
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