Sterling Welder 882.00274.00 Benutzerhandbuch

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Additive Feeders 
Chapter 5: Maintenance 
35 of 50 
Motor Brush Replacement 
The two (2) motor brushes should be replaced when they are worn down to less than 1 inch in 
length.  Replacement brushes are “pre-worn” by the manufacturer and require no break-in 
period. 
Caution! 
Disconnect power to the Additive Feeder before changing the motor 
brushes. 
 
 
1.  Remove a brush cap screw near the back of the motor. 
Caution! 
The motor brushes are spring loaded.  Use care to avoid eye injury when 
removing the cap screw.  Wear safety glasses when performing this 
procedure.  
 
2.  Remove the brush.  Make note of the direction of the tapered end of the brush face. 
3.  Insert the new brush (See Figure 5 below for Brush Part Numbers) with the tapered 
end facing the same way as the worn brush. 
4.  Secure the new brush with the cap screw. 
5.  Repeat the above steps for the other brush. 
The motor is now ready for use. 
Figure 5:  Replacement Motor Brush Part Numbers 
Part Number 
Description 
A0541239 
115 VAC controls, motor plate marked 90 VDC, 1/20 HP 
A053426-BS 
115 VAC controls, motor plate marked 90 VDC, 1/10 HP