EATON
WCB11070.1
Brake Assemblies Installation, Operation and Maintenance Manual
E-CLCL-II015-E
December 2016
10
WCBD Brake Assemblies
4.1.17 Test for proper seal installation as follows:
4.1.17.1 There are two sets of ports on the cylinder; the
outermost positioned ports connect to the larger
pressure chamber. The innermost ports connect to
the small pressure chamber. Remove any pipe plugs
or fittings from the inner ports.
4.1.17.2 Install a pressure gauge in one of the outer cylinder
ports. Apply 80 psig (5.1 bar) air through a second
outer cylinder port (after plugging the other outer NPT
port for the 14WCBD thru 48WCBD) to engage the
WCBD brake assembly.
4.1.17.3 After the pressure has stabilized, shut off the air
supply. Monitor the pressure gauge for a drop
in pressure for a period of ten minutes. If the air
pressure does not drop below 60 psig (4.1 bar) within
10 minutes, the seals have been properly installed.
If leakage is excessive, try to note the location of the
leakage. If the intermediate seal is leaking, air will
pass into the small (inner) chamber.
4.1.17.4 Exhaust all air pressure from the WCBD brake
assembly. Remove the plugs and gauges from the
outer- most ports and install them in the inner ports,
leaving all of the outermost ports open.
4.1.17.5 Apply 80 psig (5.1 bar) air pressure through one of
the inner ports in the cylinder (after plugging the
other inner port for the 14WCBD thru 48WCBD) to
engage the WCBD brake assembly.
4.1.17.6 After the pressure has stabilized, shut off the air
supply. Monitor the pressure gauge for a drop
in pressure for a period of ten minutes. If the air
pressure does not drop below 60 psig (4.1 bar) within
10 minutes, the seals have been properly installed.
If leakage is excessive, try to note the location of the
leakage. If the intermediate seal is leaking, air will
pass into the large (outer) chamber.
4.1.17.7 If excessive leakage is found in testing of the large
or small pressure chamber, disassemble the WCBD
brake assembly and check the suspect seals and
sealing surfaces for damage or other causes of
leakage. Repair or replace components as required.
5.0
ORDERING INFORMATION/TECHNICAL
ASSISTANCE
5.1.1 In any correspondence regarding Airflex Equipment,
refer to the information on the product nameplate
and call or write:
Eaton
Hydraulics Group USA
Airflex Products
9919 Clinton Rd. Cleveland,
Ohio 44144
Tel: (216) 281-2211
Fax: (216) 281-3890
www.eaton.com/hydraulics
Molykote
®
is a registered trademark of
Dow Corning
