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Graco RTX 650 Troubleshooting Manual page 17

Electrical & mechinical texture sprayers
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RTX 1500 Electrical and Air Ladder Diagram
Power cord plugged in and Power Switch
Load Blk
N/O
Main
Power Switch
117693
Open in
Prime Mode
N/C
Primer Switch 119064
Air
Compressor
Air Cooler
Coil
Exhausted
Air
Cylinder Valve 15D560:
With
Coil Voltage
Applied. This will
allow air to be exhausted and the weight of the
motor to push the cylinder rod in and remove
tension on the Roto Flex Hose.
120V
M
Main Valve Coil
287326
N/C
Air Flow
Sensor Switch
287326
Cylinder Valve
Coil 15D560
Gun Valve
45psi
Exhausted
Air
Coil
Neutral Wht
Motor/Air
Compressor
15D559
Valve
assembly
The Switch will remain closed
until air flow is present. The
Air Flow
Air Flow
Gun being triggered or a Air
Leak will cause the ball to lift up
Sensor Switch
Air
Regulator
Exhausted
Air
ON
Grnd
and open the circuit.
KEY
Electrical Load Circuit
Air Flow
15D559
Valve assembly
Air
17

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