Graco Inc. PRO4000 User Manual
TABLE OF CONTENTS
Terms
3
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Safety Warnings
4, 5
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How The Electrostatic Air Spray Gun Works
5
. . . .
Installation
Typical Installation
Typical Installation
6
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Warning Signs
6
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Ventilate the Spray Booth
7
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Connect the Air Line
7
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Connect the Fluid Line
7
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Check the Electrical Grounding
8
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Operation
Filter the Fluid
Filter the Fluid
9
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Operating Checklist
9
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Spraying Operation
9
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Install the Fluid Nozzle and Air Cap
10
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Adjust the Spray Pattern
10
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Maintenance
Daily Care and Cleaning
Daily Care and Cleaning
11
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Clean the Air Cap and Fluid Nozzle
11
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Flush the Spray Gun
12
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Spray Pattern Troubleshooting Chart
13
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Gun Operation Troubleshooting Chart
14
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Electrical Troubleshooting Chart
15
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Electrical Tests
Test Gun Resistance
Test Gun Resistance
16
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Test Power Supply Resistance
16
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Test Resistor Stud Resistance
17
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Service
Gun Disassembly
Gun Disassembly
18
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Electrode Replacement
18
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Resistor Stud Replacement
19
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Barrel Removal
20
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Fluid Needle Packing Replacement
20
. . . . . . . . . . . . . .
Power Cartridge Replacement
22
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Turbine Alternator Removal
23
. . . . . . . . . . . . . . . . . . . . .
Fan Air Valve Replacement
24
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Air Valve Replacement
24
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ES On–Off Valve Removal and Repair
25
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Fluid Adjusting Screw Replacement
25
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Muffler and Check Valve Replacement
25
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Parts Drawing
26
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Parts List
27
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Repair Kits
28
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Technical Data
29
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How To Order Replacement Parts
29
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Accessories
30, 31
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Warranty
Back Cover
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TERMS
WARNING: Alerts user to avoid or correct conditions that could
cause bodily harm.
cause bodily harm.
CAUTION: Alerts user to avoid or correct conditions that could
cause damage to or destruction of equipment.
cause damage to or destruction of equipment.
NOTE: Identifies essential procedures or helpful information.
PRESSURE RELIEF PROCEDURE: A safety procedure for re-
lieving air and fluid pressure in the system.
lieving air and fluid pressure in the system.
FOR YOUR SAFETY: Alerts user to read the additional safety
warnings on the page indicated.
warnings on the page indicated.
ES ON-OFF VALVE: An on/off switch located near the rear of
the gun, above the gun handle, that turns the electrostatic pow-
er on or off.
the gun, above the gun handle, that turns the electrostatic pow-
er on or off.