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7.0 Troubleshooting/Maintenance
7.0 Troubleshooting/Maintenance
7.1 Troubleshooting
Problem
Motor(s) won't turn on
Jogger runs but blower won't
Jogger motor runs but won't jog
7.2 Blower Brush Replacement
1. Switch the machine off and disconnect the power cord.
2. Remove one side cover from the machine.
3. To remove the switch box from the machine, remove (4) screws that attach it to the back side of
the machine.
4. Rock back and forth while pulling on each of the (2) green terminal plugs to disconnect them form
the circuit board.
5. Each brush assembly is held in place with by a bracket that is held down with (2) screws.
Remove the brackets by removing the screws.
6. DO NOT CUT OR UN-CRIMP THE WIRES FROM THE BRUSH ASSEMBLY. Each wire is
attached to a thin strip of metal that is inserted into the brush assembly.
7. Using a small screwdriver, pry between the wire and the casing to remove the strip of metal
attached to the wire.
8. The first half of the strip will slide out easily. It will lock when it is half-way out. Use a thin
screwdriver to push down the locking tab that is on the strip of metal. Pull the strip of metal while
pushing the locking tab.
9. Install the new brush assembly in the reverse order of which the old one was removed. Always
replace both brushes at the same time.
10. Firmly re-insert the (2) green terminal plugs into the circuit board.
11. Reinstall the switch box to the back of the machine.
12. Reinstall the side cover.
13. Reconnect the power cord.
12
Possible Cause
Power switch turned off, unplugged, blown fuse,
circuit breaker tripped, brushes worn, loose wires
Blower switched off, blown fuse, brushes worn,
control circuit board damaged, loose wires
Eccentric weight on motor loosened
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