I'm curious to know what you guys do for your "daily" park brake test.
Do you have an SOP/SOG that defines how you do it???
Put in gear and if it holds, it's good??? Or do you have a set rpm increase above idle that you use?? Or, a set rpm that you go up to, to see if it holds???
Here's my problem. The FD engineer took 3 rigs OOS because the park brake wouldn't hold when throttled up to 1,200 rpm's in gear. I was called out to find and correct the problem.
The FD SOP/SOG is to put it in gear, note the idle rpm, and gradually increase the throttle 200-300 rpm's over idle. If it stays, your good. If it moves, call the shop.
After a careful inspection and test of the park brakes, all 3 were returned into service without any need of adjustment. And FYI, I am extremely cautious when it comes to brakes on these rigs.