Vision 2448 Manuel d'utilisateur télécharger pdf (Page 32)

Page 32

Chapter 9

The motor brushes on the engraving motor should be inspected regularly, and replaced when

worn. Two brush assemblies are included with the accessories package.

(One for each side of the motor.)

Inspect the brushes for possible replacement at least every six months. (see gure 9.2)

The engraving motor is the large, black motor (where applicable) on the top of the carriage

assembly. Unplug the speed controller to remove power to the motor. Perform the inspection (one

brush at a time) to simplify reinstallation. At the top of the motor are two round extensions looking

similar to ears. Using a at-blade screwdriver, carefully remove the small threaded brush cap

from the center of one of the “ears”. If you screw it in the wrong direction, the cap will descend

into the ear instead of rise out. Remove the metal U-shaped bracket connected to the spring and

carbon brush. It will be found underneath the brush cap. Observe how you remove the brush, so

that reinstallation will be easier. Examine the brush for wear by comparing it to a new brush, or

by measuring the length of the carbon brush. If the carbon brush is less than a quarter of an inch

long, replace the entire assembly. Do not attempt to separate the carbon brush from the wire,

spring and bracket. Reinstall the old or new bracket/spring/brush assembly followed by the

plastic brush cap. Repeat the inspection procedure for the brush on the other side of the motor.

NOTE: If either brush needs to be replaced, replace both brushes as a set.

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Vision 2448 Manuel d'utilisateur Page 32