Re: [MV] M105 Brake ?

From: Jim Wiehe (j.wiehe@sympatico.ca)
Date: Thu Nov 08 2001 - 06:31:18 PST


I have a question with regards to the trailer with the dual air line system.
Does this trailer also have 2 manually applied parking brake levers ?
If not , then this is a newer ( ? ) trailer using the chassis number M103A3 or A4 ?
This trailer will use air pressure from a reservior under the frame to apply the
parking brake. No air pressure , No parking brakes. Better use wheel chocks.

The older trailer chassis M103A1 , M103A2 , and M105A1 use a single air line
to apply the service brakes but have 2 manually operated parking brake levers.
I still would use wheel chocks for parking but if your brakes are properly
adjusted no problem.

Also , do you know about which line on the dual air line trailer does what or is
towing this trailer going to be a new experience for you ?
When hooking up the emergency line ( Red in the trucking industry ) it goes
to the glad hand at the rear of your 2 1/2 , or 5 ton truck, that always has air
coming out of it when you turn on the valve.
It is this constant pressure that actually keeps your parking brake from applying.

The service line ( Blue in the trucking industry ) only has air going through the
line when you step on the brake.
Hope that this helps.
 
Jim Wiehe , VA3JHW
mail to : j.wiehe@sympatico.ca
----- Original Message -----
From: <Recovry4x4@aol.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Thursday, November 08, 2001 00:47
Subject: [MV] M105 Brake ?

> List members, does anyone have an opinion on the air/hydraulic brake systems
> on the M105. I have several and am deciding which chassis to use. One has a
> single air line system and the other has a dual air line system with a relay
> valve. Any pros and cons to either so I can make an educated decision? TIA
> Kenny
>
> Kenneth Engle
> Loxahatchee, FL U.S.A.
> AM General M-35A2
> Recovry4x4@aol.com



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