LHR Technologies, Inc. CarveWright™ System (Rev 1.39) 03/02/09 43
Care and Maintenance
The CarveWright is a precision machine tool. With proper care and
maintenance it will provide long, reliable service.
WARNING: Always unplug machine before attempting any
troubleshooting or maintenance on the machine.
• Initial Set-Up and Alignment - Adjusting the Head Pressure
Checking the head pressure and adjusting the vertical guide rods is part
of the machine set-up process. The head pressure should also be
checked periodically during routine maintenance. There are several
reasons that the head pressure may be low.
• Insufficient lubrication on the vertical guide rods or leadscrews.
• Misalignment in the vertical guide rods.
• Poor mesh on the gears that drive the vertical leadscrews.
Please refer to the Troubleshooting section of the Operators Manual for
the procedure for checking the head pressure and lubricating the
vertical guide rods. The proper head loading should be between 75 and
85 pounds.
If lubricating the vertical guide rods does not resolve the low head
pressure reading, then realigning them is needed. The vertical guide
rods are located at the four corners of the machine and are the rails
upon which the head of the machine rides up and down. If these
vertical guide rods are shifted out of alignment the head may bind when
lowered, and the pressure put on the workpiece by the head may be too
low for optimum operation. These vertical guide rods can be knocked
out of alignment during shipping or when the machine is moved.
In order to adjust the vertical guide rods you will need a #2 Phillips
screwdriver (or power drill with #2 screw bit) and a 10mm socket,
socket wrench, and 3” extension.
1. Ready the machine. Unplug the machine from the power outlet and
place it on a stable work platform. Raise the head up several inches
for best access. Move the Z-truck to the very top of its travel (until it
reaches the hard stop) so that the flexshaft support tube protrudes
from the head cover.
2. Detach the flexshaft from the top of the Z-truck: The flexshaft
assembly is retained by a ball detent located in the flexshaft
receptacle (See Figure 34). Firmly grasp the flexshaft support tube
while reaching under the clear front cover with your other hand to
grab the Z-truck. Pull up firmly on the flexshaft support tube and twist
slightly while bracing the Z-truck. DO NOT PULL ON THE SHEATH.
The flexshaft will pop out of the detent. Wrap the end of the flexshaft
in tape so that the core will not fall out and lay the detached flexshaft
end to the side.
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