Originally Posted by Thunderherd
I think I can give some insite on this. I was a mechanic for the telephone company here, mainly worked on the mounted equipment of bucket trucks and the digger trucks. Hydraulics and electric systems. Some of our trucks used this 'micro brake' system, to lock the brakes while you are using the truck. 'All' the literature and training urged you not to use this as a parking brake. Use your regular parking brake, and put truck in gear (standard shift trans) when you leave truck unattended. We had several instances where the driver would set that micro brake, maybe when parking for overnight, and that brake would bleed off and the truck would roll off. So, please beware.
A few questions for you:
When applied, did the micro brake work OK?
Was there a light, or some type of indicator that let the operator know that the brake was engaged and if so, did this indicator also let the operator know the system had bled down?