LHR Technologies, Inc. CarveWright™ System (Rev 1.39) 03/02/09 47
• Dust Removal: The CarveWright is designed to tolerate a
considerable amount of carving system dust, but to ensure proper
operation it should be kept free of debris as much as possible.
Periodically blow or vacuum out any dust or debris from the recesses of
the unit. Always make sure to use low-pressure air (<80 psi) around
the electronics and sensors. High-pressure air can damage
components and actually push dust into them. The machine can be
adapted to external dust removal systems. Be sure that these vacuum
systems are properly grounded because of the large static charge that
they tend to generate. The warranty does not cover electronics failures
due to Electrostatic Discharge (ESD).
• Check the Head Pressure: It is very important that the head pressure
is checked regularly in order to maintain optimum machine
performance. Specifically, the sandpaper drive belts are prone to roll-
up on the ends if the head loading drops below 60 lbs as determined by
our scale test. The head loading can change over time due to dust
absorbing the grease off the four corner posts and lead screws. This
detailed check and lubrication procedure can be found in the
Troubleshooting section of this manual.
• Check the Cutting Trucks for Looseness. As a matter of regular
maintenance, check that the Y and Z Cutting Trucks (Figure 13) are
tight and do not have any play in them. Simply grab each one by hand
and wiggle back and forth. If either of these trucks is loose they will
need to be tightened. Failure to tighten these trucks will result in
decreased carving quality. Please call the service help line for
tightening instructions.
• Check Sandpaper Belts for Tears or Roll-up. Visually inspect the
two sandpaper belts each time the machine is used. Look for tears or
roll-up of the end of the belt. Roll up will always occur on the control
panel side of the machine. The ends of the belts will roll under
themselves and form a doubled over raised portion on the belt end.
• Pitch Removal: Pitch buildup is not a big problem, but should a
workpiece with a high content of pitch be carved there may be some
pitch deposits on the cutter bit and elsewhere. This is easily removed
using mineral spirits.
• The Muffler and Dust Collector Bag should be removed and cleaned
out periodically to ensure a good airflow.
• Lubrication: Several areas of the CarveWright machine will require
occasional cleaning and re-lubrication.
o The flexshaft core should be cleaned and re-lubricated only if it
begins to exhibit heating during operation. To access the core, first
unplug the CarveWright machine from power. Firmly grasp the
flexshaft outer sheath where it is snapped into the machine’s cutting
head and pull it free from the head. The core is contained within the
sheath, and should slide out freely when grasped between finger
and thumb. Inspect the core for debris and clean with a lint free
cloth if necessary. The recommended lubricant is a commercially
available chain lube with Moly. Spray the lubricant onto the core
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