Page -17-
N.A.C.E.
Operator's Manual -
DM1400 & DM1800
Figure 23
Figure 24
How To Change the Drive Belt
WARNING: To prevent injury, unplug machine
before cleaning or replacing brush. Brush
may start suddenly and cause injury.
To change the drive belt, follow this procedure:
1. Put the machine on its side.
2. Lift the nozzle plate up to remove it.
3. Lift the brush assembly up to remove it (see
figure 23).
4. Remove the drive belt from the brush pulley.
5. Remove the drive belt from the motor shaft.
6. Put one end of the new drive belt around the
motor shaft.
7. Put the other end of the drive belt around the
brush pulley.
8. Install the brush assembly in the brush housing.
9. Install the nozzle plate.
10. Put the machine on its wheels.
WARNING: To reduce the risk of injury from
moving parts, unplug before servicing.
The Vacuum Indicator Light
If the vacuum indicator light (1) comes on, (see figure
24) or the motor stops, do the following:
1. Put the ON/OFF switch in the "O" position (2).
2. Remove the electrical plug from the electrical
outlet.
3. Check the vacuum hose for an obstruction. If
there is an obstruction in the vacuum hose,
remove the obstruction.
4. Check the brush assembly in the lower housing.
If there is an obstruction in the brush assembly,
remove the obstruction.
5. Check the filter bag. If the filter bag is over 1/2
full, change or empty the bag.
6. Check the filter cartridge. If the filter is dirty,
change the filter.
Thermal Overload
A thermal overload is used to protect the vacuum motor.
If the motor over heats, the thermal overload will stop
the motor. If the motor stops, let the motor cool before
restarting the machine. Check filters. If the motor
continues to stop, consult an authorized service person.
