Yes this can happen. We had one truck blow the switch completely out when we
had a load of logs on up in the mountains. Of all the things you really miss
when they stop working, brakes are number one on the list.
Randy
----- Original Message -----
From: Ron <rojoha@mediaone.net>
To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
Sent: Monday, January 08, 2001 12:58 PM
Subject: [MV] PS 2.5 Ton Trucks Brake Warning
> FWIW...While perusing throne room pubs...
>
> "PS Monthly Issue 542 JAN 1998 pg 7
>
> Ditch Brake Light Switch
> There are still some 2.5 ton trucks out there with the old hydraulic
> fluid operated brake light switches.
> They are safety hazards.
> The switch can blow an electrical connector pin, dumping all your
> hydraulic fluid.Then you have no brakes.
> Replace that switch with an air operated switch, NSN 5930-00-789-6192.
> TM 9-2320-361-20 shows the new switch. To install the switch, you need a
> conversion kit, NSN 2530-01-105-5025.
> The kit brings the switch, instructions, mounting hardware, and a
> 1/2-in. elbow. Some trucks need a 3/8-in. elbow, NSN 4730-00-289-0155, so
> measure the tubing to find out which elbow you need."
>
> The article has an OLD and NEW drawings of the switch. The NEW drawing
> has the switch on the air (BOOSTER) side of the brake system, not the
> fluid ( MASTER CYLINDER ) side. Might be worth checking if you have an
> M35XXX series that came out of DRMO before the date of this article.
> This might not be clear in the above info, but gives you a heads up on
a
> potential problem.
>
> "We now return you to your regularly scheduled PM. "
>
>
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This archive was generated by hypermail 2b29 : Mon Feb 05 2001 - 07:13:45 PST