Air Systems and Brakes

770 topics in this forum

1. Vacuum Booster

   By bigpaulscars, November 25, 2017
   • 4 replies
   • 2.3k views
   • 
   • bigpaulscars
   • November 27, 2017

2. Relay Valve? Not able to feather into brakes??

   By BucketTrucker688, November 14, 2017
   • 2 replies
   • 1.8k views
   • 
   • BC Mack
   • November 16, 2017

3. Tongue Washers Fa505

   By 58GreenMackB, November 16, 2017
   • 1 reply
   • 1.3k views
   • 
   • kscarbel2
   • November 16, 2017

4. Curved slack adjuster

   By Hobert62, November 14, 2017
   • 3 replies
   • 2k views
   • 
   • Hobert62
   • November 14, 2017

5. 1958 B61 3030 Chambers

   By 58GreenMackB, September 23, 2017
   • 10 replies
   • 3.8k views
   • 
   • 6368
   • November 4, 2017

6. Dumb ?

   By 66rmack, October 25, 2017
   • 6 replies
   • 1.9k views
   • 
   • 66rmack
   • October 25, 2017

7. Brake Drum Cross Reference

   By JMBFC, December 7, 2010
   • 2 replies
   • 5k views
   • 
   • j hancock
   • October 21, 2017

8. Rw air line diagram

   By 66rmack, October 14, 2017
   • 2 replies
   • 1.8k views
   • 
   • 41chevy
   • October 15, 2017

9. E9 air compressor, pushing oil out the intake

   By wrenching4life, October 12, 2017
   • 2 replies
   • 1.9k views
   • 
   • gearhead204
   • October 12, 2017

10. RW brake light switch

    By hdfx81, September 24, 2017
    • 3 replies
    • 1.8k views
    • 
    • terry
    • September 24, 2017

11. b model brake shoe wear plate.

    By tom1361, June 27, 2017
    • 5 replies
    • 2.5k views
    • 
    • j hancock
    • September 5, 2017

12. Brake Parts 1942 80 LS Fire Truck

    By Phyrphighter, August 5, 2008
    • 4 replies
    • 2.6k views
    • 
    • Hobert62
    • August 26, 2017

13. 2010 Mack chu 613 parking brake slowly engaging

    By McTrucking, August 16, 2017
    • 1 reply
    • 1.5k views
    • 
    • mrgumby
    • August 16, 2017

14. 58' Mack B Model Replacement Front Brake Springs

    By 58GreenMackB, August 15, 2017
    • 3 replies
    • 1.3k views
    • 
    • kscarbel2
    • August 15, 2017

15. Air compressor won't stop building air

    By jasonemryss, July 12, 2017
    • 3 replies
    • 32.1k views
    • 
    • Mack Technician
    • July 31, 2017

16. air line question B85

    By Mack58B42, July 16, 2017
    • 4 replies
    • 1.8k views
    • 
    • Hobert62
    • July 19, 2017

17. Slack adjuster replacement help

    By Moparmike, July 10, 2017
    • 1 reply
    • 2k views
    • 
    • thomastractorsvc
    • July 16, 2017

18. Air leaking from left back relay valve

    By DJG, July 5, 2017
    • 7 replies
    • 4.9k views
    • 
    • DJG
    • July 14, 2017

19. 1979 MR685S - brakes on rear dragging

    By Virtual400, November 28, 2016
    • 5 replies
    • 2.4k views
    • 
    • Virtual400
    • July 8, 2017

20. R model brake troubles

    By martinf, June 5, 2017
    • 3 replies
    • 1.8k views
    • 
    • martinf
    • June 7, 2017

21. 1948 Mack Fire Truck, Bad Breaks

    By froutzy1, June 1, 2017
    • 2 replies
    • 1.8k views
    • 
    • froutzy1
    • June 1, 2017

22. Air start tank acquisition 1 2

    By Freightrain, February 13, 2017
    • 38 replies
    • 7.4k views
    • 
    • Freightrain
    • May 26, 2017

23. Air Governor

    By Plowboy, May 13, 2017
    • 1 reply
    • 1.7k views
    • 
    • Lmackattack
    • May 13, 2017

24. 2007 CH Foot valve

    By dcrow, April 10, 2017
    • 2 replies
    • 2.6k views
    • 
    • dcrow
    • April 30, 2017

25. 2004 Granite parking brake takes about 15 seconds to engage

    By CA Trucking, March 30, 2017
    • 7 replies
    • 3.7k views
    • 
    • Swishy
    • April 9, 2017