Clarke ultra speed Operator's Manual page 29

SMALL
HOLES
GOOD
A
GOOD
C
Figure 7
Pequeños
agujeros
Bueno
A
Bueno
C
Figure 8
Petits
trous
Bon
A
Bon
C
Figure 9
Page - 28 -
UNEVEN
GOOD
B
HIGH MICA
Coloración
desigual
Bueno
B
Demasiado
Coloration
inégale
Bon
B
Trop de mica
3. Pull back each spring and pull the brush out of the
holder. Keep the lead wire connected.
4. Turn the pad driver and look at the part of the
commutator that the brushes touch.
5. Take the machine to a Clarke authorized repair
location if you see any of the following conditions:
1.) Small holes in the surface of the commuta-
tor. See Figure 7 "A".
2.) Uneven color. Look for an even dark brown
color. Clean areas or very dark areas
indicate a problem. See Figure 7 "B".
3.) High mica. The mica insulation must be
lower than the commutator bars. See
Figure 7 "C".
6. Replace all four carbon brushes if any carbon
brush is shorter that 7/16 inch. To replace the
carbon brushes in the motor, follow this procedure:
1.) Remove the screws. Replace the brush and
lead. Install the screw.
2.) Use a hook to pull the spring out of the way.
Install the brush into the slot. Put the
spring into position on the end of the brush.
The lead must not prevent free movement of
the brush in the holder.
3.) Install the motor cover.
Rectifier
If the machine has been adjusted, and still blows fuses
and runs at half speed, the rectifier may be damaged.
Take the machine to an authorized repair location to
have a Clarke authorized repair person replace the
rectifier.
Operator's Manual - Ultra Speed Burnisher
Clarke ®