1. Remove the two 1st-reverse brake piston seals from the 1st-reverse brake piston.
2. Clean all the 1st-reverse brake components and dry thoroughly.
3. Inspect the 1st-reverse brake discs for excessive wear or damage and replace as necessary.
4. Inspect the 1st-reverse brake piston for cracks or porosity and replace as necessary.
5. Inspect the 1st-reverse brake piston return spring for distortion or weakness and replace as necessary.

Install the new 1st-reverse brake piston seals onto the 1st-reverse brake piston.