EATON
WSB11206 WCSB Tensioner / Brake with ORB Coolant Ports Installation, Operation and Maintenance Manual E-CLCL-II009-E
August 2015
8
2.2.4 Heat the gear uniformly to 250
o
F (121
o
C) to expand
the bore and ease assembly. Press the gear onto the
shaft, making sure that the dimension between the
gear and the tensioner mounting surface ("A")
is maintained. See Figure 1. Allow the gear to cool.
2.2.5 Apply a thin coat of MOLUB-ALLOY
®
936 SF Heavy
or equivalent grease to the splines of the gear.
Caution
Excessive lubricant may contaminate friction material,
resulting in erratic response or loss of torque.
Caution
The use of anti-seize or bearing greases on the
gear splines may result in premature gear and
disc spline wear.
2.2.6 Pre-fill the grease channel in the friction disc splines
(if applicable) with MOLUB-ALLOY
®
936 SF Heavy or
equivalent grease, as shown on Figure 3.
Channel is filled with
MOLUB-ALLOY 936 SF
heavy grease
.12" (3.0 mm)
Figure 3
2.2.7 Rig the WCSB tensioner / brake assembly into
position and slide it over the gear. Avoid placing lifting
straps or cables directly on the release springs (34).
Table 2
Fastener Description and Assembly Torque - ft.-lb. (Nm)
Item Description Specification 24WCSB
36WCSB
48WCSB
4
Wear Plate Screw
Size
5/16-18 NC Gr. 8
3/8-16-NC2 Gr. 8
3/8-16-NC2 Gr. 8
5 Locknut
Quantity
90
108
120
Torque, Dry
21 (28)
40 (54)
40 (54)
18
Locknut
Size
1 1/8-7 NC Gr. 8
1 3/8-6 NC Gr. 8
1 3/8-6 NC Gr. 8
106
Quantity
12
16
16
Torque, Lubed
500 (677)
750 (1016)
750 (1016)
20
Hex Head Screw
Size
1 1/8-7 NC Gr. 8
1 3/8-6 NC Gr. 8
1 3/8-6 NC Gr. 8
Quantity
12
16
16
Torque, Lubed
500 (677)
750 (1016)
750 (1016)
57
WC Friction
Size
1/2-13 NC Class 3
1/2-13 NC Class 3
1/2-13 NC Class 3
Disc
Screw Quantity
36
144
224
Torque, Loctite # 262
15 (20)
15 (20)
15 (20)
121
Dry Friction
Size
1/2-13 NC Class 3
1/2-13 NC Class 3
1/2-13 NC Class 3
Disc
Screw Quantity
48
72
90
Torque, Loctite # 262
20 (27)
20 (27)
20 (27)
Customer
Mounting
Size
5/8-11NC-2 Gr. 8
1-8 NC Gr. 8
1 3/8-6NC Gr. 5
Supplied Screw
Quantity
10
14
14
Torque, Lubed
150 (203)
660 (895)
1100 (1490)
Customer SAE
Coolant
Size
SAE-12
SAE-20
SAE-20
Supplied Fittings
Quantity*
4
4
4
Torque, O-Ring Lube
68-78 (92-105)
146-171 (198-231)
146-171 (198-231)
*Note: Increase the quanity of SAE coolant fittings by 4 for each Reaction Plate S/A (30) in the WCBD tensioner/brake assembly.
WCSB tensioner / brake with ORB coolant ports
Summary of Contents for Airflex WSB11206
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