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Models TCF and Model QEI/QEID Centrifugal
®
Inlet
Cone
Wheel
Shaft/Bearing/
Bearing Plate Assembly
Housing
Inlet
Cone
Wheel
Shaft/Bearing
Assembly
Housing
Cover
Plate
Model QEI
If the bearings cannot be removed from the shaft due
to corrosion or damage, the bearing plates can be
removed from the inner chamber. The shaft/bearing/
bearing plates can be removed as a complete
assembly from the fan inlet.
1. Unbolt and remove inlet cone (inlet side).
2. Loosen set screws at the wheel hub and remove
wheel (inlet side).
3. Remove bolts from drive bearing plate (outlet side).
4. Remove bolts from wheel bearing plate (inlet side).
5. Pull shaft/bearing/bearing plate assembly out of
the fan housing (inlet side).
6. Replace bearings on shaft/bearing/bearing plate
assembly.
Fan Bearing Replacement
Replacement of bearings requires disassembly of internal components. For this procedure access must be
available to both the inlet and outlet ends. The following procedure assumes belts have already been loosened
and removed. (Belts are removed by adjusting the motor pivot plate).
Reinstall components in reverse order of removal. Reference the Radial Gap, Overlap & Alignment section to
ensure proper wheel installation.
Model TCF
1. Remove cover plate from drive chamber (outlet
side).
2. Unbolt and remove inlet cone (inlet side).
3. Loosen set screws at the wheel hub and remove
wheel (inlet side).
4. Unbolt both sets of bearings from support bars
(outlet side).
5. Remove shaft/bearing assembly (outlet side).
6. Replace bearings on drive shaft.