Sterlco SSL and SSIL Series Hopper Loaders - Manual (Page 48)

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7-2 Replacing Motor Brushes
Note: Make sure that you replace motor brushes before the brush shunt
touches the commutator. Replacements and spares are available
from the manufacturer.
SS/CS Series hopper loader vacuum motor brushes require periodic replacement. Maintain a
supply of motor brushes, and establish a preventive maintenance program to reduce downtime.
Make sure that you properly seat replacement brushes to achieve maximum service life.
Unseated brushes may fail prematurely and increase your maintenance workload.
!
WARNING
HAZARDOUS ELECTRICAL
CURRENT PRESENT.
Secure the machine
BEFORE servicing!
WEAR SAFETY GLASSES
BEFORE performing this
procedure!
Use a stable platform if
working above floor level.
Removing Old Motor Brushes
1. If you haven’t already done so, disconnect the hopper loader from
the electrical supply!
2. Disconnect motor and blowback connection receptacles at the
control enclosure.
3. Release the latches that secure the cover assembly. Lift off the
cover assembly by the edges.
4. Remove the motor from the cover assembly by carefully releasing
the springs. Springs are under tension, so be very careful!
5. Remove the brush end cap, then the two brush clips from the
brush holder.
6. Remove the two brushes from the brush holder, and replace with
new brushes.