Meritor

4700 mm 42.06.004

Note: If equipped with an extended-maintenance Q Plus™ brake system, the slack adjuster will not have a grease fitting. These slack adjusters use a special NLGI Grade synthetic polyurea grease, and do not require lubrication for 3 years or 500,000 miles (800 000 km), whichever comes first. The extended-maintenance slack adjusters are lubricated during the brake reline service interval.

For slack adjusters with grease fittings and for operating temperatures above –40°F (–40°C), use a NLGI Grade 1 clay-base grease or a NLGI Grade 1 and 2 lithium-base grease.

For slack adjusters with grease fittings and for operating temperatures below –40°F (–40°C) and above –65°F (–54°C), use a NLGI Grade 2 synthetic oil, clay-base grease.

Lubricate the slack adjuster at the grease fitting until grease is forced past the pressure-relief capscrew or past the gear splines around the inboard snap ring. See Fig..

  1. Brake Chamber

  2. Clevis

  3. Actuator Rod

  4. Boot

  5. Pressure-Relief Capscrew, Gasket, Pawl Spring, and Pawl

  6. Manual Adjusting Nut

  7. Grease Fitting (or plug)

Fig. 1, Meritor Slack Adjuster

Note:
Parent topic: Slack Adjuster Lubrication
Document Number: 0000120998
Manual Publication Date: 2024-05-23
Topic Publication Date: 2024-10-31