Troubleshooting
22
3A4167C
The blast spray pattern is irregular
Nozzle is blocked.
Remove the nozzle and clear any for-
eign obstruction.
Inadequate air supply.
Make sure the air inlet pressure
gauge reads 100-150 psi (6.8–10 bar,
0.68–1.0 MPa). If the gauge does not
read 100–150 psi, check the air com-
pressor for proper setup.
Incorrect nozzle size being used.
B
last hose was not properly cleaned
out after previous use.
Incorrect abrasive is being used.
Use the correct abrasive.
Blast p
ot does not have a sufficient
amount of abrasive.
Refill the pot with abrasive. See
“Refilling the Blast Pot” on page 15.
System is not properly set up.
See “Setting Up the Equipment” on
page 12. Make sure the pot pressure
is properly indicated on the pot pres-
sure gauge.
Make sure the selector valve is set to
BLAST. The abrasive ball valve must
be open. The abrasive metering
valve must be at least one turn open.
P
inch valve is malfunctioning.
Check for media spill from the pinch
valve area. Replace pinch hose.
There is a blockage inside the blast
pot or inside the abrasive hose
between the blast pot and the panel.
Depressurize the pot. Then open
and
close the abrasive ball valve to
assure all pressure in the circuit is
relieved. Disconnect the cam-lock
coupler. Making sure the abrasive
ball valve is closed, re-pressurize the
pot. Open the abrasive ball valve
slightly, and confirm abrasive is flow-
ing from the abrasive hose.
If not, follow the procedure in “Shut-
down” on page 18. Thoroughly flush
the pot and the media hose after
draining media and water.
Problem
Cause
Solution
Summary of Contents for Geo Blaster GB1200
Page 25: ...Parts 3A4167C 25 Control Panel Components upper left...
Page 27: ...Parts 3A4167C 27 Control Panel Components lower left...
Page 29: ...Parts 3A4167C 29 Control Panel Components lower right...
Page 31: ...Parts 3A4167C 31 Control Panel Components upper right Rear View of Item 48...
Page 33: ...Parts 3A4167C 33 Control Panel Components rear...
Page 35: ...Parts 3A4167C 35 Water Valve and Pressure Relief Valve Components...
Page 37: ...Parts 3A4167C 37 Air Valve Components...
Page 39: ...Parts 3A4167C 39 Water Valve and Filter Components...
Page 42: ...Parts 42 3A4167C Water Pump Components...
Page 53: ...Technical Data 3A4167C 53...