Hi Bruce,
the protrusion they are on about is at the clutch side,!!
As instructed slacken off the cable adjuster,
Then!!!
Check the angle of the clutch arm, and the inner operating arm, they should be inline with each other as it were!!
clutch cable arm at right angle to cable and operating arm at right angle to pushrod
you can move the operating arm to suit as it is on a fine spline with a locknut and splitpin
The cable adjustment should be set so as the arm and cable are at right angles at half pull !!!!!
Set the lever in the released position (driving)
when this is done measure up at the clutch side and shorten the push rod to suit the SRM pusher,
do it a piece at a time so as you wont go too far ,
there is adjustment also on the pressure plate, so the pushrod length is not so critical (within limits???)
HTH
John O R