Graco Uni-Drum Instructions Manual page 17

Junction Box Panel Switches and Indicators
Use the table and F . 6 when operating the switches and reading the indicator on the Junction Box Panel.
IG
Button/Switch
PRIME PUMP Pushbutton
PUMP RESET Pushbutton
PUMP ON Pushbutton
BULK SUPPLY
DEPRESSURIZATION Pushbutton
LOCAL REMOTE Switch
Indicator
SYSTEM
PRESSURIZED Light
PUMP ACTIVE Light
AIR PRESS ON Light
RAM READY Light
PUMP READY Light
309028ZAT
What it Does
• Primes both displacement Pumps with material, making the
Pumps ready to operate.
• Lights PUMP READY Light.
• Restarts the Pumps after the Pumps were turned off.
• Lights PUMP ACTIVE Light
• Activates the Pumps.
• Deactivates the Pumps.
• Opens the depressurization valve to lower the fluid supply
pressure.
• Places fluid dispensing system into Automatic or Manual mode.
Indicator
Meaning
Light is
ON System is pressurized.
OFF System is depressurized.
ON Pumps are active; air is available to the Pumps.
OFF Pumps are inactive; air is unavailable to the Pumps.
ON Air pressure is available to the Pumps for use.
OFF Air pressure is not available to the Pumps for use.
ON Follower Plate (D) is ready for use.
OFF Follower Plate (D) is not ready for use.
ON Pumps are primed and ready to use.
OFF Pumps are not ready to use.
Component Identification
17