Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Undercarriage>Assemble main gear
Tuesday, April 6, 2010
36 of 343
Assemble the brake calipers
In this step you will assemble the hydraulic disc brake calipers.
Cleanliness is essential when working with hydraulic brake parts, so clean your working area
and your hands thoroughly before starting this step.
Use compressed air to clean any dust and dirt from the inside of the brake calipers and
pistons. Apply brake fluid to the O-rings and fit one to each piston, then apply a smear of
brake fluid to the inside of the caliper and fit the pistons to the calipers: press the piston gently
into the caliper with the cupped side of the piston facing outwards.
Thread and tighten a bleed
nipple into the lower fitting on
the caliper (
under
the Jabiru
logo) and push a blanking plug
into the top fitting as shown at
right – the brake lines will be
fitted later in
Post-Paint
and the
blanking plug will keep the
caliper sealed until then.
Wash any brake fluid off your hands – it can irritate sensitive skin.
Refer to the drawing on the next page for an overview of the brake system.