4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 8: Troubleshooting
Page 142
Vacuum Pump Alarm: Troubleshooting Steps, continued…
•
Procedure
1. To start the test, push the F1 button on the Maintenance Screen. Press the Start
Button to energize all the control valves.
2. Check for a magnetic field at the retaining clip in the center of the valve operator.
a) Take a small non-magnetized screwdriver that will be drawn to the magnetic
field, if one is present, and see if the screwdriver is drawn to the general
location of the retainer clip.
b) If a valve is not energized, the screwdriver will not be drawn to the retainer
clip.
•
If valve A or C and fuse FU2 has 115 VAC power and is not
energized, replace the bad valve core.
•
If valve B or D and fuse FU3 has 115 VAC power and is not
energized, replace the bad valve core.
•
If valve E and fuse FU5 has 115 VAC power and is not energized,
replace the bad valve core.
c)
If the magnetic fields are present, listen for any of the control valves making
a chattering sound. If chattering is heard, replace the valve core.
d)
Replace the valve core using the Core Rebuilt Kit as shown in the
Replacement Parts Section. See Chapter 9 for Replacement Parts
Procedures.
3. After checking and replacing the Control Valves, push the F4 button to return to the
Maintenance Screen.
4. At the GREEN MACHINE Controller, push the ESC button to return to the Main
Screen where the GREEN MACHINE will go into a Normal Operating mode.
