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Graco 390 - Pressure Relief Procedure; Step 1: Power Off and Wait; Step 2: Engage Trigger Lock; Step 3: Adjust Pressure Control

Graco 390
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Manual Conventions
2 310824C
Contents
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Component Identification . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 7
General Repair Information . . . . . . . . . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Displacement Pump Replacement . . . . . . . . . . . . 13
Drive Housing Replacement . . . . . . . . . . . . . . . . . 15
Spin Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fan Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Motor Brush Replacement . . . . . . . . . . . . . . . . . . 18
Control Board Replacement . . . . . . . . . . . . . . . . . 19
Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pressure Control Assembly Replacement . . . . . . 22
Manifold Replacement . . . . . . . . . . . . . . . . . . . . . . 23
Power Cord Replacement . . . . . . . . . . . . . . . . . . . 24
Motor Replacement . . . . . . . . . . . . . . . . . . . . . . . . 25
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 29
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 30
Manual Conventions
Note
WARNING
WARNING: a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
Warnings in the instructions usually include a symbol
indicating the hazard. Read the general Warnings
section for additional safety information.
Hazard Symbol
CAUTION
CAUTION: a potentially hazardous situation which, if
not avoided, may result in property damage or
destruction of equipment.
Additional helpful information.

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