Taylor-Dunn B0-248-TT Operation, T Roubleshooting And Replacement Parts Manual page 64

Maintenance, Service, and Repair
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.
NOTE: There are two different brake assemblies. One has a
standard o-ring with a round cross section, the other
has a square cross section. The two o-rings are not
interchangeable. The square o-ring is not available as
a replacement part. If the square o-ring is damaged,
the entire brake assembly must be replaced.
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
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