Lubrication
sd mm 42.11.001
      - Visually check for physical damage, such as broken air
                  lines and broken or missing parts.
 - Using a quality multipurpose chassis lubricant, NLGI Grade 2, lubricate the slack adjuster through the grease fitting until clean lubricant flows from the grease relief opening in the boot.
 - Perform the "In Service Inspection."
 
Important: Perform the Brake Inspection maintenance operation before lubricating the slack adjusters.
Note: