EATON
WSB11206 WCSB Tensioner / Brake with ORB Coolant Ports Installation, Operation and Maintenance Manual E-CLCL-II009-E
August 2015
26
WCSB tensioner / brake with ORB coolant ports
12
16
2
3
9
5
8
10
11
6
14
15
7
1
4
13
Figure 15
4.5.10 After completion of the assembly, each water cavity
should be checked for leaks.
4.5.11 Using lifting straps, suspend each assembly with
the water outlet port at the 12 o'clock position.
Connect a water supply line to the inlet port
(at 6 o'clock position). In reaction plates, plug the
remaining inlet port. See Table 4 for water port sizes.
4.5.12 Slowly fill with water to purge all air from
water cavities.
Table 10
Inlet and Outlet Water Port Sizes
Size Size
24WCB2 SAE-12
36WCB2 SAE-20
48WCB2 SAE-20
4.5.13 Install pipe plug(s) in the outlet port(s) and apply
appropriate water pressure 40 psig (2.7 bar) for the
36WCSB and 48WCSB and 45 psig (3.1 bar) for
the 24WCSB measured at the inlet. Maintain this
pressure for a minimum of 30 minutes.
4.5.14 Check for leakage at O.D. and I.D. seal areas.
NO leakage is allowed.
4.5.15 If the assembly leaks, check the torque on each
screw and re-test. If leaks still occur, the wear
plate(s) or sealant groove may be damaged.
Repeat procedure from section in front of 4.5.1.
4.5.16 Follow steps in Section 4.9 to reassemble
the WCSB tensioner / brake assembly.
4.5.17 Machining of the wear surfaces is required for
the 36WCSB and 48WCSB tensioner / brake
assemblies after replacement of the wear plates
or the adjoining friction material. See Figure 16 for
machining specifications. Clean all wear surfaces
after machining to remove any residual contaminates.
.006
.003
100% clean-up within this area
to dimension shown below.
.001” max allowable cutting
tool mismatch. Surface to be
Clean and free of sharp edges.
36 WCSB
.245”
.235”
48 WCSB .385”
.365”
Figure 16
4.6
Cylinder Seal Replacement
Note: If seals in the mounting flange/cylinder (112) require
replacement, full disassembly of the WCSB tensioner / brake
assembly is required. See Section 4.3.
4.6.1 Disconnect the air supply lines and remove the
screws (20), washers (17) and spacer tubes (27)
attaching the cylinder (19) to the pressure plate (13).
4.6.2 Carefully slide the cylinder off of the spring housing (16)
or piston (33) out of the mounting flange/cylinder (112).
Caution
Do not use compressed air to remove the cylinder
from the spring housing.
4.6.3 Remove the cylinder seals from the spring housing
(16) or piston (33) and thoroughly clean the seal
grooves in the spring housing or spring housing.
4.6.4 Insert new seals into the grooves, noting the
orientation of the seals per Figure 17.
Figure 17
Summary of Contents for Airflex WSB11206
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