Power Brake Booster and Mico Lock on my 61 WM300 - Questions

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Posted by Bob Stopka on Friday, April 09, 2004 at 2:31AM :

Howdy all,I just rebuilt all the brakes and new master cylinder on my WM300 Howe Fire Truck Pumper. Bled all wheel cylinders. Still a little soft pedal. Bleeder on power booster is froze, so I will try some heat to free it, along with PB Blaster. Questions as follows.

1. Booster is up hi in the frame of course, half way back. Should this be the 1st item to be bled, or should I bleed the the rear cylinders again, then the booster and then the front cylinders ?

2. How can I tell if the power booster is functioning ? I have had some WWII WC's with
no booster over the years. The fire truck weighs 7200 lbs with no water in the tank, which is quite a bit more than a WC. Using the brakes on the WM300, well they are much better than before, and they don't feel like they brake any better than the WWII WC's which have no booster. What is the best way to test a power booster ?

3. The Mico lock brake handle on the dash,,,,
Do I need too bleed it also ? I seem to recall reading that the Mico lock should be bled also ? Is that true ? and if so,
how do you bleed the Mico Lock ?

Thanks to all in advance..

Follow Ups:

Re: Power Brake Booster and Mico Lock WM300 - THANK YOU ALL !!! - bob stopka 0:24AM 04/11/2004

Re: Power Brake Booster and Mico Lock on my 61 WM300 - Questions - KenW 9:12PM 04/09/2004

Re: Power Brake Booster and Mico Lock on my 61 WM300 - Questions - Todd Somers 5:41PM 04/09/2004

Re: Power Brake Booster and Mico Lock on my 61 WM300 - Questions - Tim Holloway 6:17PM 04/09/2004
- Mity vac - MoparNorm 10:09AM 04/10/2004
  - Re: Norm.. - Jerry Henry 1:39PM 04/10/2004
    - Re: Norm.. - Paul(in NY) 5:16PM 04/10/2004
      - Re: Norm.. - MoparNorm 7:13PM 04/10/2004
        
        Re: Norm.. - Russ Roth 8:05PM 04/11/2004
        
        Re: Norm.. - MoparNorm 9:54AM 04/12/2004
        
        Mine must be the - Paul(in NY) 7:25PM 04/10/2004
        
        I think,... - MoparNorm 9:24AM 04/11/2004
- Re: Power Brake Booster and Mico Lock on my 61 WM300 - Questions - Jerry Henry 0:46AM 04/10/2004
  - A presure bleeder would be easy to make for a PW. - Joe Lorenzino 2:52AM 04/10/2004
    - Re: A presure bleeder would be easy to make for a PW. - steve 0:00AM 04/12/2004

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