Originally Posted by Phil57
So that slack adjuster info come in handy yet? I can see a over the road truckers needing that info but when is the last time anyone needed to adjust theirs?
I agree that it is hard to get under our rigs and check the slack.
This is a case where there is some discrepancies between the manuals, so I follow the Alberta manual, of which I only have a printed copy. Page 83 of the April 2012 Air Brake Manual states:
"To be properly adjusted for a 100 PSI (690kPa) application, the automatic slack adjusters must regularly receive 100 PSI (690 kPa) applications."
In the margin beside this is a Road Sense Tip that says:
"Develop a routine of regularly applying full service brake applications to maintain the adjustments of the automatic slack adjusters.
"With the spring park brake released and the brakes cool, apply a full service brake application. A good habit is to apply one full application at each red light, stop sign, etc."
So, yes, I do follow the advice in the last sentence of the Road Sense Tip. Interestingly, the Manitoba and Newfoundland manuals aren't so clear on this. The right column of the Manitoba manual on page 72 comes close for this.
Interestingly, when I follow the "...good habit [advice] to apply one full application at each red light, stop sign, etc." I find that my shoes are so wide that I apply the throttle when I get to the point of making a full brake application, which means I need to be careful when I make hard stops.
To make a long story short, the Alberta Air Brake manual does have useful advice about slack adjusters for RV owners. It has a lot of other good information, so it is a good idea to read one of these manuals if you drive an RV.