ATD Tools ATD-8402 User Manual

ATD-8402

90LB PRESSURE BLASTER

INSTRUCTION MANUAL

SAVE THESE INSTRUCTIONS

SAFETY INSTRUCTIONS FOR SANDBLASTER

1. Before opening the tank release the air pressure on the sand tank. To do this, turn off
the air supply valve(#14) to release pressure in the line. Be sure that the tank pressure
gauge (#05) reads zero then open the tank.

2. Maintain correct air pressure. Pressure should not exceed 125PSI. If it does, the safety
valve (#06) is supposed to release the excess pressure. If it doesn’t release excess
pressure, stop all work immediately and use the air compressor to reduce the excess
pressure. Do not investigate the sandblaster’s pressure problem until the pressure
gauge (#05) reads zero.

3. When using pneumatic equipment, basic safety precautions should always be followed
to reduce the risk of personal injury and hazards due to over pressurization.

4. Do not operate the unit when tired or under the influence of alcohol or drugs.

5. When servicing only use parts and accessories intended for use with this unit.

6. Do not allow sand blaster to be pressurized while unattended or not in use.

WARNING: The warnings and cautions discussed in this instruction manual cannot cover
all possible conditions and situations that may occur. It must be understood by the operator
that common sense and caution are factors that cannot be built into this product but must
be supplied by the operator.

ASSEMBLY

USE PTFE tape for all threaded air connections

1. Assemble the intake manifold (#08). Attach the pressure gauge (#05) to the top of the
intake manifold (#08), and turn the gauge so that it can be seen across the top of the
tank. Next, attach the sand meter valve (#18) to the bottom of the manifold (#08). Attach
the connector (#07A) to the bottom of the sand meter valve (#18); attach the nipple
connectors (#07) to the manifold (#08). Attach the safety valve (#06) to the manifold
(#08) as shown in the diagram.

2. Assemble the water trap filter (#12). Two nipple connectors (#07) are screwed into each
side of the filter (#12 ). Attach the n ipple conne ctor (#07) to one side of air su pply valve
(#14); then attach the male-female connector (#15) to the other side of air supply valve
(#14). When ready to operate the sandblaster, the air hose from compressor will fasten
to the male-female connector (#15).

3. Place the tank (#03) on a table with four clips up. Screw the water trap filter (#1 2) and its
parts into the hole at the side of the intake manifold. Then screw the open end of the
nipple connector (#07) with intake manifold (#08) and pressure gauge (#05) attached
into the threaded hole on the side of the filler pipe o n top of the tank. Again, be sure that
the manifold and gauge are vertical.

4. Assemb le the sand outlet valve into the hole at the bottom of the tank. Attach four parts
in order: 1pc Nipple Connector (#07); Sand Metering Valve (#18); the other nipple
connector (#07) and the sand outlet pipe(#19).

5. Assemble the sand meter valve. Slide two hose clamps (#26) over each end of the sand
hose (#25). Press one end of the hose over the nipple on the sand outlet pipe (#19) and
the other end over the intake connector(#27). Both hose ends should be firmly seated
on the nipples. Slide the hose clamps along the hose to each nipple and tighten the
clamps firmly. They have to resist the force of 65 to 12 5PSI.

6. Fasten the handlebars (#02) to the tank by using pan screw (#11), washer (#10) and
hex nut (#09). Fixing axle brackets (#20) on th e t ank by using screw (# 16). NOTE: Keep
the handle curve ends upward.

7. Locate axle (#23) and slide it through the holes at the sides of the axle brackets (#20).
Place one wheel (#22) at each end of the axle and fasten them into place with cotter pin
(#24) and washer (#21).

8. Insert the fixed foot (#17) onto the fitting on the bottom of the tank near the edge. Use
the last cotter pin(#24) to hold the foot on the tank.

9. Before operating, go back over each connection, double checking to ensure that all
connections are tight and properly seated.

ABRASIVE SELECTION

The kind of sand you choose will greatly influence the amount of time needed to clean a
given surface area. Sandblasting materials include silicon carbide, alumina, silica sand,
bank sand and beach sand. However, bank sand and beach sand even if washed, will still
contain shell, coral and organic materials. These absorb moisture much more readily than
the other material. As a result, the moisture in bank sand and beach sands frequently
causes plugging of the sand meter valve.

If you select to reuse sand, remember it does wear out. The sharp edges become rounder
and are less effective. It’s at that point you should replace the batch of sand that you are
using.

LOADING ABRASIVES

1. Check abrasive to be sure it’s dry and won’t clog the meter valve (#18), sand outlet pipe
(#19), sand hose (#25) or other components.

2. Put on prot ec t i ve clothin g .

3. Turn the air supply valve (#14) to the off (horizontal) position.

4. Watch the pressure gauge (#05) and make sure it reads zero.

5. Be sure to get enough abrasive into the tank to do the job at hand. But if this is a big job,
only fill the tank 3/4 full and reload as needed to finish the work.
Tips: If the humidity is 90-100%, the water trap (#12) won’t be able to trap all of the
moisture in a 3/4 filled tank. You’d be better to reduce the amount of abrasive, load more
frequently and empty the water trap more often. This will reduce the possibility of
clogging the bottom of the tank or the line.

6. With the correct amount of abrasive in the tank, close the gasket (#01) then open t he air
supply valve (#14).

7. Check for air leaks at the filer cap as you begin to pressurize the tank from the
compressor.