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LUBRICATION
Lubricating the X-Axis, Y-Axis and Z-Axis lead screws
(ALL MODELS)
A light lubrication of the X and Y and Z lead screws should
be performed after every week of usage (see fig. 5.2). Use
silicone lubricant only. Spray a light coating along the lead
screw. (A nozzle extender attached to the aerosol spray
can will facilitate this procedure and may eliminate the
need to remove the metal covers)
DO NOT use any lubricant other than silicone, as
it may become sticky and cause a buildup that
can cause mechanical failure.
What not to lubricate
Many of the bearings and assemblies in your engraving
machine are sealed and/or coated using special low-
friction methods and should not be lubricated.
DO NOT attempt to lubricate the spindle or the
spindle bearings. If you suspect lubrication problems, call your
dealer/representative for instructions, as further lubrication may harm the machine.
DO NOT lubricate the X or Y stepper motors.
(Fig 5.3)
X & Y
Z
Chapter 5
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 figure 5.2)
The engraving motor is the large, black motor 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 flat-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.
Carriage and
gantry covers are removed.
(34 pages)
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