General Operating Instructions
Your new Raytech Adjusta-Vibe finishing machine comes from the factory completely assembled and ready to run. The
working capacity of the Adjusta-Vibe 40 and 40SS is .35 cubic feet, or three gallons. The working capacity of the model
75 is .75 cubic feet, or approximately 6 gallons. This capacity includes both the media and the workpieces. The general
rule of thumb is 70% media and 30% parts. Raytech finishing machines are actuated by an eccentric weight system
which is factory set at the mid-range tumbling action. By adjusting the eccentric weights, the amplitude of the machine
can be changed infinitely, resulting in vibratory action ranging from mild to very aggressive, depending on media and
material being tumbled, e.g. corncob media/mild tumbling action, and ceramic media/more tumbling action.
Maintenance
The following maintenance should be performed every 500 hours of use:
1. Lubricate lower shaft assembly threads and motor plate threads with a light grease such as Lubriplate.
2. Check tightness of all hardware.
3. Inspect interior of bowl to ascertain any premature wear.
Health & Safety Cautions
1. Do not cover the machine with anything (such as a blanket or a box) to insulate the noise as this could cause over-
heating and become a fire hazard.
2. Always connect the machine to a power source that has been properly grounded to prevent any possible electrical
shock.
3. Models 40 and 75 are designed not to “walk” during normal operation. We recommend that the machine be placed
on a Raytech Compound Rinsing System or on a solid floor away from any combustible materials. If the machine is
used on a bench, it should be blocked in to prevent any accidents. Do not bolt or attach these units to a workbench
by any means, as this will void warranty.
4. Prior to any adjustments to the eccentric weight assembly, disengage the machine from its electrical power source.
5. Never attempt to operate or experiment with other than recommended media and compounds.
6. Do not dispose of grits down drain. Remove as much grit as possible by straining.
7. Always use ear protection in the work area while the machine is running. Machine noise level at maximum condi-
tions is 82 dB. Noise levels can be less depending on media applications.
Amplitude Adjustment
To change the amplitude, unplug the electric cord and turn the machine on its side. Remove the bottom cover with the
three #8 seIf-tap screws. Use a 5/16" Allen wrench to adjust the eccentric weights. Refer to Figures I and 2 below for
adjustment, Note: The 5/16" Allen head bolt is a left-hand thread. With a 5/16" Allen wrench, loosen this bolt to change
the position of the adjustable weight. Once adjusted, secure tightly.
Bowl Removal
Note: Never turn the machine on without the bowl being installed. To remove the bowl from the Adjusta-Vibe machine,
unscrew the large nut at the center of the bowl and lift off. When replacing the bowl, it is essential that the nut be tight-
ened properly so that the bowl will not vibrate loose.
FIGURE 1:
FIGURE 2:
FIGURE 3:
Figure 1 shows weight adjusted to
minimum amplitude/aggressiveness.
Adjustable weight in this position
counter balances the fixed weight and
reduces the amplitude/aggressive-
ness. (Ex. Tumbling using corncob
media or any light media.)
Figure 2 shows weight adjusted to maximum amplitude/
aggressiveness. Adjustable weight in this position adds
to the fixed weight and increases the amplitude/aggres-
siveness. (Ex. Tumbling using ceramic or steel shot
media or any heavy media.)
With a 5/16” Allen wrench,
loosen this bolt to change
position of adjustable weight.
CAUTION:
Do not loosen
this screw
when changing
adjustable
weight position.
Fixed Weight
Adjustable Weight
Recommended Position
for Light Media
Center Line of Media Shaft
