TRUCK SERVICE MANUAL
7. Install Welch plug in worm shaft bore.
8. Lubricate worm with viscous chassis lubricant.
9. Position the cover plates (6) on the body and rivet together.
The covers must be flat and in good contact with the body after
10. If slack adjuster body will accept a lubrication fitting, install a
fitting in the body and force grease into the slack adjuster with a
Brake camshafts and slack adjuster should be lubricated every 1,
000 to 2, 000 miles with Lithium-12 Hydroxy Stearate EP grease.
Do not over lubricate. Slack adjusters without fittings require no
lubrication. The provision for lubrication may differ on slack
adjusters. Some have zerk fittings while others utilize pipe plugs
or snap-in type plugs or covers.
Every 15,000 to 25,000 miles or when brake linings are replaced,
apply a thin coating of Lithium-12 Hydroxy Stearate EP grease to
brake shoe anchor pins and camshafts. Do not over lubricate.