From: Hutterer, John (MPAU) (john.hutterer@smiths-medical.com)
Date: Mon May 08 2006 - 05:29:26 PDT
Vinny,
The truck doesn't get driven very much. About a year ago, I was going to
John
-----Original Message-----
Hey John, What was the problem with your M816 before you changed the
>
> pushing on the pedal, but must not have been as thorough as I should
> to bleed the brakes on a vehicle, let it sit over night, and bleed
> trapped in the system in the morning, and that it comes out with the
> confidential information and is intended solely for the use of the
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Smiths Medical is a Division of Smiths Group plc. Incorporated in England No: 362847 Registered Office: 765 Finchley Road London NW11 8DS, UK
drive it over to a friends house, to move a deuce for him. The brakes
were really low. Way too much peddle travel. I pumped them several
times, and they seemed to be working okay. On the way to my friends
house, a guy pulled out in front of me and I had to stomp on the brakes.
They worked fine, but they wouldn't release. I had to block the wheels
and go to the left rear brake bleeder and let the pressure out. A few
months later, I again had trouble with low peddle. I had replaced the
air pack a couple of years ago, so I figured that it was okay. The only
thing that made sense to me was to replace the master cylinder. I
figured that the seal was bad and that it was allowing air into the
system, or fluid to by-pass the seal. Anyway, I replaced the master
cylinder. As I said earlier, I tried to bleed the system, but must not
have done the job properly. The second time around, I found a lot of air
still trapped in the fluid. I have driven it a couple of times since
then, and the brakes seem to be working fine. Hope this helps.
From: V SCHWARTZ [mailto:vsaws@optonline.net]
Sent: Friday, May 05, 2006 7:17 AM
To: Hutterer, John (MPAU); Military Vehicles Mailing List
Subject: Re: [MV] M35 brakes
master cylinder? I have been going nuts with the brakes hanging up on
my
816 for almost 2 years. I have changed 3 airpacs and 2or three master
cylinders plus the flex lines in the back. I have had my suspicions all
along that the problem is something stupid that either I have done or
failed to do properly.
----- Original Message -----
From: "Hutterer, John (MPAU)" <john.hutterer@smiths-medical.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Thursday, May 04, 2006 8:59 AM
Subject: Re: [MV] M35 brakes
>
> Patrick,
>
> I have an M816 wrecker and was having similar problems. It was filled
> with new silicone brake fluid, after I had replaced the master
cylinder.
> I thought that I had bled the brakes properly, with help from a friend
> have been. I let the truck sit for several days, and then hooked up a
> pressure bleeder to it. I connected a clear plastic hose to each
> bleeder valve and watched the fluid as it came out. I was absolutely
> amazed at how much air was still trapped in the system. It took me
> nearly a gallon of fluid to bleed it completely out. A friend, who is
> a mechanic for the Army Reserve, says that it is his standard practice
> them again in the morning. He invariably finds that there is still air
second bleeding.
> The brakes on my 5 ton work perfectly now.
>
> John
>
> -----Original Message-----
> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
> Behalf Of Patrick Jankowiak
> Sent: Wednesday, May 03, 2006 8:46 PM
> To: Military Vehicles Mailing List
> Subject: [MV] M35 brakes
>
> Sometimes I notice that the brake pedal has alot of travel before
> 'hitting the brakes' when the truck's running gear is cold. After run
> a while down the hiway, the pedal does not travel as far before
'hitting'
> the brakes, even though the brakes have not been used since I pulled
> away from the starting point. No problems stopping, DOT5 fluid, but
> this is odd, anyone know what it might be?
>
> Patrick
>
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> England
> No: 362847 Registered Office: 765 Finchley Road London NW11 8DS, UK
>
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