Gunite

m2 mm 42.05.001
Important: Perform a brake inspection before lubricating the camshaft bracket.

Automatic slack adjusters that have a grease fitting must be lubricated periodically to ensure proper brake operation.

Warning: Failure to lubricate slack adjusters could lead to dragging brakes or a brake failure, resulting in property damage, personal injury, or death.

For operating temperatures of –20°F (–29°C) and higher, use Texaco Multifak EP-2 or Mobil Grease No. 77.

For operating temperatures between –20°F (–29°C) and –40°F (–40°C), use Lubriplate Aero grease.

Lubricate a Gunite automatic slack adjuster at the grease fitting until grease appears on the camshaft, or flows from the grease relief. See Fig. .

The newest Gunite automatic slack adjusters are produced without a grease relief. During lubrication with a grease gun, lubricant is forced through the drilled worm wheel onto the camshaft. Lubricate the automatic slack adjuster at the grease fitting until grease appears on the camshaft.

  1. 7/16-Inch Adjusting Nut

  2. Grease Fitting

  3. Boot

  4. Link

  5. Brake Chamber Piston Rod

  6. Clevis

  7. 1/2-Inch Clevis Pin

  8. 1/4-Inch Clevis Pin

  9. Grease Relief Opening

  10. Slack Adjuster Spline

Fig. 1, Gunite Automatic Slack Adjuster

Note:
Parent topic: Dana Spicer, Haldex, and Gunite Slack Adjuster Lubrication
Document Number: 0000120048
Manual Publication Date: 2024-06-03
Topic Publication Date: 2025-12-11