8
6
5
6. Fit the blast handle. Apply thread tape to the
threads, remembering not to pull too hard,
which can cause permanent damage.
General about blasting
1. Preparations before blasting. All parts to be
painted must be free of oil, grease and moisture.
Make sure the parts are dry before blasting
them.
2. Air pressure. Normal working pressure is bet-
ween 3.5 to 5.5 bar. Up to 8.6 bar can be used,
but such high pressure destroys certain blasting
materials such as glass balls. Normally the pres-
sure is set to 5.5 bar, this is suitable for most
materials, for materials such as steel, aluminum
or fragile surfaces you start at a lower pressure
and increase if necessary until you reach a desi-
red effect.
3. Angle and distance of the blasting gun. Aim
the gun at a 45˚ to 60˚ angle at the object. Let
the ricochets be directed away from the object.
Do not hold the gun at a 90˚ angle to the object
as the blasting material will then bounce back
against the gun and reduce the blasting jet. It
also wears on the parts of the gun. Keep the
gun at a distance of about 15 cm. Warning. The
pistol must always point away from the operator
towards the object to be blasted. Always remo-
ve the air connection during maintenance and
service of the appliance.
4. Blasting agents. The blasting agent must always
be of good quality and dry. Moisture causes the
blast material to ow less and clog intake pipes,
hoses and containers.
5. Nozzle size. By increasing the diameter of the
nozzle, the felling can be increased signicantly,
but this requires increased air ow (the com-
pressor must be able to provide this).
Maintenance
1. The blasting gun. After 10-12 hours of use,
check the nozzle. If the nozzle wears unevenly,
turn it 1/4 turn after 10 hours of use.
2. Lump formation of blasting agents. Lump for-
mation is caused by moisture in the air supply
or from parts that are greasy or oily. If left
untreated, the blasting agent will ow unevenly
and eventually clog the intake manifold or
gun. Check the air supply, install an effective
moisture trap if necessary. Degrease parts to be
blasted properly before blasting.
3. The blast gun drops in pressure. Set the regula-
tor to 5.5 bar, activate the blast gun and check
the pressure gauge, if the pressure drops sig-
nicantly it indicates that the air supply is not
sucient. This may be because the hose has
too small a diameter, a reducing quick coupling,
a clogged lter or a compressor that does not
provide sucient ow. The air hose should be
1/2 " or larger.
4. Poor ow of blasting agent. Check for moisture,
install microlters if necessary, replace damp
blasting agent and clean hoses and nozzles.
Look for any holes in the hoses, replace if ne-
cessary. Debris in the blasting agent, be careful
not to put any paper in the agent, this easily
causes nozzles and hoses to become clogged.
Replace or sift the blasting agent.
Sandblasting
WARNING: Always wear a blower cap and appro-
ved respirator, goggles, heavy gloves, shoes and
clothing.
Inspect each connection and make sure all are
tight and well sealed.
WARNING: This machine is not intended for
use with silicon-based abrasives. Silicon-based
abrasives have been linked to severe respiratory
diseases.
