WCB 11060 (PDF Format)
16
© Copyright Eaton Corp., 1998. All rights reserved
June, 1998
4.3
Disassembly of WCB
Note: Item numbers (#) are shown on
Figures 1-5.
4.3.1
Loosen the locknuts (18) ONE TURN AT
TIME and in an alternating (crosswise)
pattern until the spring force is completely
relieved. Remove the locknuts and washers
(17) and wear spacers (29). Mark all of
the water outlet ports for identification and
orientation. Deep well sockets are required.
See table 10 for size and depth of socket
required.
4.3.2
Using lifting equipment, carefully remove the
cylinder (19) and piston (33) as an
assembly. Set aside in a clean area.
Note: If a stud (6) should happen to come
loose, remove it completely, clean the
threads on the stud and the threads in the
mounting flange. Apply Locquic
®
Primer
Grade “T” to the stud threads. After the
threads have dried, assemble to the
mounting flange using Loctite
®
#262. The
end of the stud must not extend past the
mounting surface of the mounting flange.
Loctite
®
#262 must be shaken prior
to application.
Loctite
®
#262 may irritate sensitive
skin. Refer to the product label for
proper safety precautions.
4.3.3
Using lifting equipment, remove the
pressure plate assembly (13) and carefully
place it on a suitable work surface with
the wear plate (3) facing up. Do not damage
the wear plate.
4.3.4
Remove the friction disc assembly, the
reaction plate assembly (30), release
springs (34), stop tubes (59) and wear
rings (47) (if present) and set aside.
4.3.5
For multi disc units repeat step 5.2.4 for
each reaction plate and friction disc set
until all are removed.
4.3.6
Slide the clamp tubes (12) and wear
spacers (29) off each of the studs.
Note: Wear limit tables for the following
paragraphs are in section 6.0.
4.3.7
To inspect cylinder and seals refer to
section 4.5.
4.3.8
Inspect the friction disc assemblies (7)
for wear or contamination. On single and
multi-disc units, the friction material must
be replaced when worn to the bottom of the
groove on the friction lining. See Figure 8.
4.3.9
For friction disc repair see section 4.4.
4.3.10
Inspect the wear plate (3) for wear. Wear
plates must be replaced if they exceed the
wear limits. See section 4.5 for repair
procedures.
4.3.11
Inspect the reaction hole diameters in the
reaction plate (30) and pressure plate (13).
4.3.12
Inspect the clamp tubes (12) for wear
on the reaction area.
4.3.13
Inspect the friction disc core (9) and the
gear for excessive backlash.
4.3.14
Inspect the release springs (34) for free
height.
4.3.15
Re-assemble tensioner per section 4.8
4.4
Friction Lining Replacement
4.4.1
Friction disc cores may be relined with
new friction material per the following
instructions. Refer to Section 7.0 for the
appropriate friction disc sub-assembly or
friction disc replacement kit part number.
Note: Standard screwed on friction lining
is identified with one notch, two places
180
o
apart, see Figure 10. High coefficient
screwed on lining is identified with two
notches, two places 180
o
apart.
See Figure 11.
Use only genuine Airflex friction
material. Use of material not of
Airflex origin may result in
unpredictable performance.
4.4.2
Remove friction disc(s) per section 4.3.
