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CRL Glass Machinery • (866) 583-1377 • Fax (866) 584-9722 Int. Phone: (773) 242-2871
CALL TOLL FREE ANYWHERE IN THE U.S. AND CANADA • ALL PRODUCTS F.O.B. NEAREST WAREHOUSE
CRL/SOMACA BELT SANDER
MODELS 2300RP, 2300, AU2300
a nd
AU23
Page 1
INTRODUCTION
Your new CRL/SOMACA Belt Sander was developed and improved through the years until it can now be called the finest piece of equipment available
in its price range. The machine incorporates many fine features such as a direct drive, 1 H.P. motor, a gas cylinder-tensioned upper pulley, safety shield,
totally sealed ball bearings eliminating weekly lubrication, and a unique, rust-proof, thick-walled HDPE (High Density Polyethylene) water tank.
Like any good machine, it will give best results if it is properly cared for. It is not necessary to pamper this equipment, but reasonable maintenance will
increase the machine’s life.
We put sealed bearings in our machines because we found that most shops do not take the time to grease the bearings on a routine basis. However,
even sealed bearings do sometimes go bad, and should be inspected on a weekly basis for noise or rough spots. Scrubbing the machine occasionally
will prevent glass and sludge build-up, and any areas where rust is starting to show should be scraped, primed, and repainted to get the maximum life out
of the machine.
The AU2300 machine has a 50 Hz, 220V motor with Australian cord and plug but no roller platen or guide wheels. The AU23 has
the roller platen and guide wheels and a 50 Hz, 220V motor with Australian cord and plug.
The instructions on the following pages will guide you through the initial setup, maintenance, and replacement of parts on your machine. Should you
run into any problem or procedure you do not understand, please feel free to call our toll free number (800) 421-6144, and we will be glad to help you.
Parts and expert advice can also be obtained directly from CRL Glass Machinery at (866) 583-1377. International: (773) 242-2871.
BELT SANDER SET UP
UNCRATING THE MACHINE
Remove the shipping cover and inspect for any damage. If you find any part of your machine has freight damage, save all shipping material and
call the delivering carrier immediately. Tell them you want to file a damage claim and have them send out an inspector. If everything is okay, completely
remove the shipping crate, including the wooden base.
SETTING UP THE BELT SANDER
1. Position the sander in your desired location. For best results, the sander should be level and secured to the floor with anchors, fastened through the
holes provided in the sander base.
2. With the belt sander switch in the OFF position, plug the sander into a grounded outlet of the correct voltage. Electrical Specifications for each model
are located on the Serial Number Plate near the belt tensioner and on the
top of this page
.
NOTE: A ground plug is provided for your safety.
PLEASE DO NOT ALTER IT IN ANY WAY.
Now turn the switch on to see if the motor will run. If it does, go to the next step. If it does not run, check all
electrical connections and try again.
If you still have a problem, please call us before going any further.
3.
Unplug the sander before going any further.
Now you can connect the sander to your city water supply, using copper tubing and a 1/4" NPT
(National Pipe Thread) male connection to the 1/4" NPT female connection in the electric water valve (Photo 1 on Page 4). Note the “flow direction”
marked on the valve with an arrow. Turn the water on and check for leaks. Position a bucket or pan under the drain pipe on the machine, or connect
a hose for discharging into a flume or other device to allow sediment to settle and water to drain off.
NOTE: If drained into a sewer, abrasive sand
grindings may accumulate and plug the drain.
4. Plug the machine in again. Be sure the manual water flow control valve (after the electric water valve) has the handle turned in the direction the water
is flowing; this is the OPEN position. Turn the switch ON and the water will begin to spray. The spray pattern on the sander is not adjustable. If the
spray pattern decreases or changes, remove and clean the spray nozzle. The manual water flow control valve (Photo 1 on Page 4) can be adjusted to
reduce the water flow. Do not use any more water than needed to keep the belt wet. Turn the machine OFF. Unplug the sander and go to the next step.
5. Pull the handle to open the side door. Now install a belt over the top and bottom pulley by pulling down on the black handle on the tensioner
mechanism. Be sure the belt is not wrapped over the water nozzle.
NOTE: When grinding glass, only “wet or dry” belts with silicon carbide grain should be used. They come with two types of splices:
overlapping or butt splices. Butt splices can be run in either direction (such as CRL’s finger splice). Overlapping splices can be run only in
the direction indicated by arrows on the inside of the belt. The most common way to put lapped spliced belts on a belt sander is to put the
belt over the pulleys so you can see the arrow pointing up on the back side of the belt. This will give you the proper rotation.
6. With the sander still unplugged, pull the belt through by hand several cycles to adjust the tracking mechanism. Do this as follows: On the left side of
the machine is a blue ratcheting lever. Loosen the locknut behind the lever. Rotate this lever clockwise to move the belt to the right. Rotate the lever
counterclockwise to move the belt to the left. Adjust the blue ratchet lever until you have adjusted the belt so it will stay in the middle of both pulleys
when pulling the belt by hand. If the blue ratchet lever hits an obstruction, pull the handle out toward you and it will rotate without affecting the tracking.
7. Now plug the machine back in, turn the switch ON, and perform the fine tracking adjustments. The goal is to have the belt track in the middle of both
the upper and lower pulleys. Hold the lever and use a 1/2” wrench to tighten the locknut behind the blue lever. If the contact roller does not match up
with the belt at this time, loosen the Square Head Screws in the Platen Bracket and tap the Roller Platen shaft until it aligns even with the belt, then
tighten the screws.
8. The belt tension is not adjustable and is controlled by the tensioner spring. No adjustment is needed. The spring is available as a replacement part.
2300RP/2300 ELECTRICAL SPECS:
115V AC 1/60 Hz .74 kW / 1 HP 12.2 FLA 15 AMP SERVICE 1750 RPM MAX
AU2300/AU23 ELECTRICAL SPECS:
230V AC 1/50 Hz .74 kW / 1 HP 6.1 FLA 10 AMP SERVICE 1750 RPM MAX
