How do you measure push rod stoke by your self?

Manual slack adjustors are 9/16th and automatics are 7/16th... in most cases.

 

You need to be running some old equipment to be running manual slacks.
http://www.fmcsa.dot.gov/rules-regulations/administration/fmcsr/fmcsrruletext.aspx?reg=393.53
(b) Automatic brake adjusters (air brake systems). Each commercial motor vehicle manufactured on or after October 20, 1994, and equipped with an air brake system must meet the automatic brake adjustment system requirements of Federal Motor Vehicle Safety Standard No. 121 (49 CFR 571.121, S5.1.8 or S5.2.2) applicable to the vehicle at the time it was manufactured

 

nope

my autos put me out of service twice, so i switched to manuals

no more problems

 

If you are running '95 1/2 or newer equipment, those manual slacks can put you out of service, also. For manuals, the vehicle must have been manufactured before October, 1994. They are legal on my tractor, as it is a 1984 model, but not on my 2011 trailer.

 

Sounds like, if your motor carrier (aka company) you work for, trains/certifies you to adjust brakes, you're ok.. (which is what my company has done with each driver). But I'm curious: how does it work if you're an O/O? As an OO you are the motor carrier, right? Do you just certify yourself as being capable?