5. MAINTENANCE REM - GRAINVAC VR12
5.4. M
AINTENANCE PROCEDURES
64 9000-00-0042 R3
Figure 5.16 Rotor & Wear Wrap Inspection Window Plates
5. To inspect the wear wraps:
a. Reach inside the rear inspection window and feel the top side of the wear wrap as
it curves around the rear rotor. Once grooves have worn through the wrap, it must
be replaced.
b. Reach inside the front inspection window and feel the bottom side of the wear
wrap as it curves around the front rotor. Once grooves have worn through the
wrap, it must be replaced.
6. For preliminary visual inspection of the rotors:
a. Insert a trouble light into the blower outlet.
b. For the rear rotor, if there is a cut line worn through the end of the blades against
the back plate, this rotor must be replaced.
c. Insert a trouble light into the front inspection window.
d. For the front rotor, if there is a cut line worn through the end of the blades against
the back plate, this rotor must be replaced.
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