TRExp

Stag, 2500 & 2000 Forum

Stag brake brake actuator switch

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Dave1954 Dave Carpenter
Newport, Risca, UK   GBR
Hi could anyone tell me exactly what the brake actuator switch does on a stag ,as I'm having trouble with rear brakes. Much appreciated. Dave

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TR3driver Randall Y
Confusion, Los Angeles, USA   USA
The Pressure Differential Warning Actuator (PDWA) basically compares the pressure in the front brakes to the pressure in the rear brakes; by applying each to opposite ends of a piston (or shuttle). If the difference becomes high enough to move the shuttle off-center, it grounds the warning light circuit. There is a write-up in the ROM, section 70.00.03.

But even off-center, it does not block off any of the pipes. Normally, anyway. Could be a foreign object in there I guess.



Randall
56 TR3 TS13571L daily driver
71 Stag LE1473L awaiting engine rebuild
7? Stag awaiting gearbox rebuild

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