TM 5-3895-374-24-2
3-5-8 Fines Blower Assembly
Removal, Repair and Replacement See figure 3-30.
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.
A. Disassembly
1.
Disconnect and lock out the breaker for the fines blower motor.
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.
Follow the procedures in Section 3-5-14 and remove the sheaves and bushings from the motor shaft and from the
blower shaft.
6.
Remove the filter assembly from the blower by unthreading.
7.
Remove the blower line (not shown in figure 3-30) from the blower.
8.
Remove the fasteners holding the blower to the mount and remove the mount.
9.
Clean all components.
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 and repair the blower according to the instructions in Section 3-5-9.
5.
Inspect the filter assembly. Replace the filter element.
page 3-796
