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MTMACK50

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  1. UPDATE - ( for those Midliner owners and those who've helped out here ) Steel air line tubing issue : After buying the factory Renault 18mm OD steel tubing , I searched hydraulic hose shops, custom muffler shops, and machine shops in my area to get all the bends correctly put on the pipe. No success. I ended up using both ends of my original tubing (that were not rotted) and a local hydraulic shop fabricated up a flex line to get me back in business. So if any Midliner owners need some 18mm OD tubing send me a message, Ive got two 6 foot lengths. FYI- alot of this tubing is used in the engine compartment as well on my CS300. Air Park Brake Warning light constantly on dashboard - It's still on .
  2. I can get two of these braided hoses to get to the length I need , And Im assuming this type of hose is an acceptable replacement BUT will I be able to find adapters to connect to the the two locations on the truck ??
  3. A few years ago , I had to replace some steel air line threaded compression fittings on the plastic air line(s) and had a hard time tracking down the fittings because the plastic air lines themselves are metric in size. This CS300 was made in France - says so on the vin plate. Every where I go and everyone who I talk to about this , they all give me that Midliner shake of the head and say " good luck finding that" Look, Ive got one male fitting on the air tank , and one female swivel nut (just like on steel pipe in pictures) under the hood - I would LOVE to be able to convert off these two points and use a more widely available air line whether it be plastic or braided steel . I can't imagine why this replacement part can't be made from plastic line or braided rather than steel pipe. Ok so - Metric parker fittings that match each end of my rotted piece and then go from there. We'll see. Thanks
  4. UPDATE - I FOUND THIS AIR LINE PIPE THRU RENAULT . IF ANY MIDLINER OWNERS ARE SEARCHING FOR SOME OF THIS PIPE CONTACT ME I HAVE TWO 6 FOOT SECTIONS 18MM OD. AIR LINE PIPE CONNECTS TO AIR TANK - RUNS BEHIND TANKS INTO ENGINE COMPARTMENT METRIC SIZED STEEL PIPE IS APPROX 5/8 " O.D. AND APPROX 70" LONG . BRAIDED STEEL HOSE IS METRIC SIZED APPROX 18" LONG
  5. So, I discovered an air leak from an approx 5/8" steel air line pipe that connects to one of the air tanks (drivers side) and runs behind the air tanks into the engine compartment which then connects to an approx 18" long steel braided hose . The pipe has many pinholes in it and the braided hose is badly rusted. In my search fora new replacement pipe and braided hose has resulted in about $400 for the two parts and the pipe comes straight and I'll have to get it bent to match the one pictured below. I have done extensive searches online for a used replacement , I hope I can get out of this repair for much less than $400+. I was thinking of using ALL steel braided hose, Ive found a manufacturer online that deals in that type hose, but I need to get the correct fitting information which is metric. Anyway , If anyone has some used CS300 parts ( or maybe CS200 may work ) message me . Thanx
  6. Try this http://www.salamisisuzu.com/ Located in Boston,Ma. - I have these guys searching for some air line tubing for my 1991 CS300 . They deal in USED and NEW parts for Midliners and more . Call 617-442-1225
  7. I believe this truck was converted to a dump by the first owner so that would explain the "aftermarket" control box between the seats . I will follow the lines from the valves and see what I find. Any ideas what this switch looks like ?? Any generic pics I can refer to ? Or , does the switch look like the one I replaced by the air tank? (pic shown in original thread @top of page) Thanks for the FAST advice .
  8. Hey Paul - See pictures attached - The parking brake air valve and the dash warning light that stays on. The AIR powered Parking Brake knob is located between the two seats . The two air valves (parking brake and trailer air supply) come as one unit , I've removed this unit many years ago from its mounting place .. and I believe the only things connected to the knobs are the air lines. - still searching online for a schematic of the parking brake system in this 1991 Midliner CS300
  9. Thanks Vlad for your insight , I will work on getting the electric scheme to narrow down the options. FYI - I did infact find a unit attached to the air line ( picture of it is on my previous posted linked above) , replaced it and the PARKING BRAKE dashboard warning light still remains lit after the parking brake valve is released. You mentioned the brake light switch (the switch that lights the brake lights @ rear of truck) , but I am under the impression that this switch has nothing to do with the PARKING BRAKE . The symptoms are that when the parking brake valve in the cab is released , the park brake "on" warning light on the dashboard stays lit , but the rear tail lights are not effected by this problem. Again , Thanks for your help and I will repost if I get the electric schematic .
  10. Hello - I posted last year about an issue with my 1991 Mack Midliner CS300-see the link here Im hoping someone may have some knowledge on why the Parking Brake Warning Dash light stays on even when the Park Brake button is depressed and the wheels release. Thanks Guys
  11. Hi Folks - 1991 Mack Midliner CS300 First the PARK BRAKE indicator light on the dash stays on even when the air builds up and releases the parking brake. I replaced a crusty old valve near the air tank with this SEE ATTACHED PICTURE 1 This new valve didnt fix the dash light stay on problem. Also I get a air leaking sound from the (2) identical WABCO valve type parts located under the hood on the firewall. When I tap the valve housing lightly with a hammer, the leak stops. SEE ATTACHED PICTURE 2 The only writing on these 2 identical valves is the word WABCO . Was thinking I could rebuild these valves with a kit but no part #'s found. Any help you folks could give on either of my two issues posted here would be greatly appreciated. Other than these 2 issues, this Mack Midliner has treated me very well since 2002 when I got it. Thanks
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