Graco Geo Blaster GB400 Guide

3A4167C
EN
Operation and Parts
Geo Blaster®
Abrasive Blast System
Abrasive blast system for coating removal and surface preparation.
For professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
150 psi (1.03 MPa, 10.3 bar) Maximum Working Pressure
See page 3 for model information.
Important Safety Instructions
Read all warnings and instructions in this manual and
in related manuals. Save all instructions.

23A4167C
Contents
Models ...................................3
Related Manuals ...........................3
Warnings .................................4
Component Identification ....................6
Geo Blaster Components ..................6
Panel Controls ..........................7
Manual Valves ..........................8
Water Tank Components ..................9
Pressure Relief Procedure ..................10
Operation ................................11
ImportantNote .........................11
Checklist Before Starting .................11
Lifting the System .......................11
Setting Up the Equipment .................12
Refilling the Blast Pot ....................15
Wash Down ............................17
Shutdown .............................18
Troubleshooting ..........................19
Parts ....................................23
GeoBlaster ............................23
Control Panel Interior ....................24
Control Panel Components - upper left .......25
Control Panel Components - lower left .......27
Control Panel Components - lower right ......29
Control Panel Components - upper right ......31
Control Panel Components - rear ...........33
Water Valve and Pressure Relief Valve
Components ........................35
Air Valve Components ...................37
Water Valve and Filter Components .........39
Water Tank and Blast Pot Components ......41
Water Pump Components .................42
Accessories and Kits ......................44
Hose Schematics ..........................46
Tubing ................................46
Air Line Tubing .........................46
Pneumatic Schematic ....................47
Water Tubing ..........................48
Water Tubing Connections ................49
Technical Data ............................ 50
GB400 ................................50
GB600 ................................51
GB1200 ...............................52
Graco Extended Warranty for Geo Blaster
Components ..........................54

Models
3A4167C 3
Models
Related Manuals
Model
Maximum Working
Pressure
psi (MPa, bar) Description
GB400 150 psi (1.03 MPa, 10.3 bar) 4.5 cubic foot pot
GB600 150 psi (1.03 MPa, 10.3 bar) 6.5 cubic foot pot
GB1200 150 psi (1.03 MPa, 10.3 bar) Two 6.5 cubic foot pots
Manual No. Product
333397 Pump
3A3838 Nozzle Pressure Verification Kit
3A3839 Nozzle Extension Handle Kit
3A4234 Blast Hose Retrofit Kie
3A4235 Pressure Gauge Kit
3A4236 Pop-up Seal Kit

Warnings
43A4167C
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
WARNINGWARNINGWARNING
DUST AND DEBRIS HAZARD
Use of this equipment can result in the release of potentially harmful dust or toxic substances from
the abrasive being used, the coatings being removed, and the base object being blasted.
•For use only by sophisticated users familiar with applicable governmental safety and industrial
hygiene regulators.
•Use equipment only in a well-ventilated area.
•Wear a properly fit-tested and government approved respirator suitable for the dust conditions.
•Follow local ordinances and/or regulations for disposal of toxic substances and debris.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Do not operate the unit when fatigued or under the influence of drugs or alcohol.
•Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
•Do not use this equipment without hose restraints and coupler pins installed on all air and blast
hose couplings.
•Do not blast unstable objects. The high amount of fluid flow from the nozzle can potentially move
heavy objects.
•Do not exceed load rating of lift eyes.
•Do not operate equipment on or stand on an unstable support. Keep effective footing and balance
at all times.
•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in
all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request Safety Data Sheets (SDSs) from distributor or retailer.
•Do not leave the work area while equipment is energized or under pressure.
•Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
•Check equipment daily. Repair or replace worn or damaged parts immediately with genuine man-
ufacturer’s replacement parts only.
•Do not alter or modify equipment. Alterations or modifications may void agency approvals and cre-
ate safety hazards.
•Make sure all equipment is rated and approved for the environment in which you are using it.
•Use equipment only for its intended purpose. Call your distributor for information.
•Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
•Do not kink or over bend hoses or use hoses to pull equipment.
•Keep children and animals away from work area.
•Comply with all applicable safety regulations.

Warnings
3A4167C 5
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help pre-
vent fire and explosion:
•Use equipment only in well ventilated area.
•Abrasive material exiting the blast nozzle can generate sparks. When flammable liquids are used
near the blast nozzle or for flushing or cleaning, keep the blast nozzle at least 20 feet (6 meters)
away from explosive vapors.
•Keep work area free of debris, including solvent, rags and gasoline.
•Keep a working fire extinguisher in the work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
•Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning,
checking, or servicing equipment.
•Tighten all fluid connections before operating the equipment.
•Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
•Keep clear of moving parts.
•Do not operate equipment with protective guards or covers removed.
•Pressurized equipment can start without warning. Before checking, moving, or servicing equip-
ment, follow the Pressure Relief Procedure and disconnect all power sources.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, includ-
ing eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes but
is not limited to:
•Protective eyewear, and hearing protection.
•Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufac-
turer.
•Properly fit-tested and government approved respirator suitable for the dust conditions.
RECOIL HAZARD
Blast nozzle may recoil when triggered. If you are not standing securely, you could fall and be seri-
ously injured.
WARNINGWARNINGWARNING

Component Identification
63A4167C
Component Identification
Geo Blaster Components
A Water Tank
B Blast Pot
C Control Panel
D Frame
FIG. 1: Geo Blaster (Model GB400 Shown)
A
D
C
B

Component Identification
3A4167C 7
Panel Controls
E Blast Pressure Gauge
F Blast Pressure Regulator
G Pot Pressure Gauge
H Pot Pressure Regulator
I Water Dose
J Abrasive Dose
K Selector Valve
L Supply Air Pressure Gauge
M E-stop
FIG. 2: Control Panel Controls
E
G
I
K
F
H
J
M
L

Component Identification
83A4167C
Manual Valves
N Dump Valve
O Rinse Valve
P Abrasive Valve
Q Water Tank Drain Valve
FIG. 3: Manually Operated Valves
N
Q
O
P

Component Identification
3A4167C 9
Water Tank Components
R Fill Cap
S Water Level Indicator
NOTE: For additional water tank components, see
“Water Valve and Filter Components” on page 39,
“Water Tank and Blast Pot Components” on page 41,
and “Water Pump Components” on page 42.
FIG. 4: Water Tank Components
S
R

Pressure Relief Procedure
10 3A4167C
Pressure Relief Procedure
1. Close the abrasive ball valve (P).
2. Close the compressor supply air valve, then turn the
compressor off.
3. Engage the blast control switch to relieve pressure
in the system.
4. Verify that the supply air pressure gauge (L) reads
0 psi. Then disconnect the air inlet hose from the
system.
5. Turn selector valve (K) to the OFF position.
6. Open pot dump valve (N) to depressurize the blast
pot. Ensure pot pressure gauge (G) and supply air
pressure gauge (L) read 0 psi.
Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as splashing fluid, follow
the Pressure Relief Procedure when instructed.
P
L
K
N