Taylor-Dunn B0-254-48 Operation, T Roubleshooting And Replacement Parts Manual page 96

Maintenance, Service, and Repair
11. Lubricate the brake parts with clean brake fluid from a sealed container.
12. Install the o-rings into the brake body. Make sure
that the o-rings are installed into the second groove
and that they are not twisted.
13. Using tool #41-350-13, slide the rubber boots onto
the pistons as shown. The boot should be hanging
off of the end of the piston.
14. Insert the rubber boot/piston into the brake body
making sure that the boot is properly seated in the
groove.
15. Press the pistons all the way down into the brake
body making sure that the boot seats properly into
the upper groove on the piston.
16. Install any fittings or plugs that were removed from
the brake body using teflon tape thread sealant.
17. If the brake body assembly is not to be immediately
installed onto a vehicle, plug the brake hose fitting
hole to prevent any contaminates from entering the
brake body.
Brakes Page 22