4.1.2.3
Friction Shoe Surface
- If the linings are
glazed, they may be lightly sanded to remove
the glazing
PROVIDING THEY DO NOT
CONTAIN ASBESTOS.
Clean the edge of the lining and note
the presence of a green stripe and a
yellow stripe along with brass flakes
in the friction material. If the above
exists, the linings contain asbestos.
Using the appropriate precautions for
working with asbestos, remove the
linings and dispose of properly. DO
NOT ATTEMPT TO SAND FRICTION
MATERIAL CONTAINING ASBESTOS.
When working with any friction
material, regardless of whether or not
it contains asbestos, always wear
approved safety equipment.
4.1.2.4
Uneven Friction Lining Wear
- Tapered
wear across the friction surface typically indi-
cates a worn drum and/or misalignment.
4.1.2.5
Contamination of Friction Shoes
- Mild oil or
grease contamination may be removed with a
solvent. Linings which have become saturated
must be replaced. Also, linings that have been
charred from excessive heat must be replaced.
When using any solvent, always
follow the appropriate safety
precautions.
4.2
Removal of Element Assembly and
Drum (Single and Dual)
Prior to removal of the clutch or
brake, make sure the machinery is in,
and will remain in, a safe condition.
4.2.1
Match mark the element to the spider and the
drum to the drum hub.
4.2.2
Disconnect the element from the spider and
allow it to rest on the drum, being careful not
to lose the rubber air connection gaskets.
4.2.3
Connect an overhead support to the element
and apply enough tension to support the
weight of the element and drum.
4.2.4
Remove the fasteners attaching the drum to
the drum hub and hoist the element/drum out
from between the shafts.
Use extreme care when disconnect-
ing the drum from the hub. Shear
points exist at the mounting holes.
4.3
Disassembly of the Dual Element
4.3.1
Lay the element on a clean, level work sur-
face with the air connection flange facing up.
4.3.2
Disassemble the long air tube group.
See Figure 11.
4.3.3
Remove the fasteners attaching the individual
elements together and separate the elements.
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