Located Brake Reservoir on firewall, drilled hole for brake line, mounted temporarily, to mark locations of AN3 bolt holes. Marked location, drilled one of the holes, and re-mounted the reservoir temporarily to re-check mark for second hold. Drilled second hole for AN3 bolt. Deburred back side, deburred brake line hole.
Installed reservoir with AN3-4 bolts, washer and lock nut as specified.