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Old 01-06-2007, 10:43 AM   #11
Bus Crazy
Elliot Naess's Avatar
Join Date: Oct 2005
Location: Clearlake, Northern California
Posts: 1,735
Year: 1992
Coachwork: Blue Bird
Chassis: TC-2000 Frt Eng, Tranny:MT643
Engine: 5,9 Cummins
Rated Cap: 84
Regarding automatic slack adjusters:

First of all, they fail a lot. You CANNOT rely on them. So long as they
work, they save you the actual adjusting, but you must keep checking.

When they fail, you can adjust them manually, yes. Takes a different
wrench from the manual 9/16. Smaller, I think. The important thing is...


So you MUST sneak up on the adjustment very gradually and not
get it too tight.

Gotta run -- have an 18-wheeler to drive somewhere.
Millicent The Bus - roof raised two feet, toy-hauler tailgate.
Elliot Naess is offline   Reply With Quote
Old 01-06-2007, 12:59 PM   #12
Bus Nut
Join Date: Dec 2006
Location: downriver, detroit mi
Posts: 794
For some reason, 13 mm wrench comes to mind for slack adjusters, their is a spring loaded lock mechanism around the adjuster bolt that has to be depressed to turn the adjuster.
At some point you need to inspect for brake component wear, remove the dust/inspection covers from the axle (if they are still there) and check the brake linings, drums and S cam position, with excessive component wear, it is possible for the S cam to rollover past the end of the brakeshoes, resulting in no brakes. For wear guidelines/specs consult your friendly local parts house or truck dealer.
paul iossi is offline   Reply With Quote

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