SMALL | UNEVEN |
GOOD HOLES | GOOD |
A | B |
GOOD | HIGH MICA |
C |
|
|
|
|
|
AGUJEROS | IRREGULAR |
ENBUEN PEQUEÑOS | ENBUEN |
ESTADO | ESTADO |
A | B |
ENBUEN | MICA ALTA |
| |
ESTADO |
|
C |
|
|
|
|
|
PETITSTROUS | INÉGAL |
CORRECT | CORRECT |
| |
A | B |
CORRECT | MICAÉLEVÉ |
| |
C |
|
|
|
Figure 10
MAINTENANCE
Maintenance Of The Motor
This machine has a vacuum motor that uses carbon brushes. The carbon brushes in the motor must be checked every three months, or every 500 hours of operation, whichever comes first. If either of the brushes is shorter than 3/8 inch, replace both of the carbon brushes.
How To Check The Commutator And The Carbon Brushes
WARNING: Electrical inspections must be made by a person authorized to make electrical repairs.
To check the commutator and the carbon brushes follow this procedure:
1.Disconnect the power cord from the electrical outlet.
2.Empty both tanks.
3.Unlatch tanks from lower housing.
4.Lift the upper housing from the lower housing.
5.Disconnect the ground wire.
6.Remove the plastic motor cover.
7.Inspect the commutator. See figure 10. Take the machine to a Clarke authorized repair location if you see any of the following conditions:
a.Small holes in the surface of the commutator. See "A" in figure 11.
b.Uneven color. Look for an even dark brown color. Clean areas or very dark areas indicate a problem.
See "B" in figure 11.
c.High mica. The mica insulation must be lower than the commutator bars. See "C" in figure 11.
8.To check the carbon brush assemblies, remove the two screws from the holding bracket.
9.Remove the brackets.
10.Remove the carbon brush assemblies.
11.Check the carbon brush assembly. Replace both carbon brush assemblies if either carbon brush is shorter than 3/8 inch. If either brush is shorter than ½ inch, order replacement brushes. Be ready to replace both carbon brushes earlier than the normal inspection time.
12.Put the motor brushes in position.
13.Using the two screws, install the bracket that holds the carbon brushes.
14.Install the plastic motor cover.
15.Connect the ground wire.
16.Install the motor holding bracket.
17.Install the lower housing to the upper housing.
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