Haynes 4.89 -

Lubricate new seals with clean brake fluid or red rubber grease. Fit the square-section seal into its groove, ensuring it is not twisted. The dust seal should click into place around the piston groove before the piston is reinserted.

It looks like you’re referencing — this likely refers to the Haynes Manual for a vehicle, with section 4.89 as a specific page, diagram, or subsection. haynes 4.89

If you need a text or explanation of what Haynes 4.89 contains, could you clarify which vehicle or manual you mean? (e.g., Ford, BMW, Toyota, etc.) Lubricate new seals with clean brake fluid or