TM 5-3895-374-24-2
3-5-12 Screw Conveyor Drives
Removal, Repair and Replacement See figure 3-32.
This procedure assumes a complete removal, repair and replacement of the assembly. A partial disassembly repair and
replacement is possible. Follow the procedure to the point of removing only those components requiring repair or
replacement. All screw conveyor drives are identical and can be repaired following this procedure.
A.
Disassembly
1.
Disconnect and lock out the main breaker for MCC #1. This will shut off all power to the screw conveyors
on the baghouse.
2.
Removal the two piece guard on the belt drive.
3.
Remove the junction box cover on the electrical motor. Label the electrical wires and disconnect the three
power wires and the ground. Disconnect the ground strap from the electric motor to the frame.
4.
Remove the four bolts holding the electric motor to the base. Remove the drive belt.
5.
Remove the two sheaves following the instructions in Section 3-5-14.
6.
Remove the gear reducer following the instructions in Section 3-5-7.
B.
Inspection
1.
Inspect the drive belt and replace if belt is found to be damaged or broken.
2.
Inspect the sheaves for wear or damage. Replace either or both of them if the damage cannot be repaired.
3.
Have the electric motor inspected and tested by a qualified facility. Repair or replace as necessary.
4.
Inspect the drive mount for damage or cracks to any of the welds. Repair as necessary.
5.
Inspect the gear reducer following the procedures in Section 3-5-7.
C.
Assembly
1.
Install the gear reducer onto the shaft. Follow the instruction provided in Section 3-5-7.
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