4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 9: Replacement Procedures
Page 168
Removing the Vacuum Pump Motor, continued
11. Remove the vacuum pump motor drive coupling flange from the motor shaft and
keep for re-use. The coupling is attached to the shaft with a setscrew and has a
shaft key.
9.6.2
Replacing the Vacuum Pump Motor
•
See Figures 9-14 & 9-15.
1. Re-install the drive coupling flange on the motor shaft but do not tighten the set
screw and do not install the shaft key.
2. Place the new vacuum pump motor on the base, install the rubber flange sleeve
between the two coupling flanges, and align the mounting holes.
Replace the shims.
3. Re-install the 2-bolts holding the Internal Junction Box stand to the GREEN
MACHINE base.
4. Re-install and tighten the 4 vacuum pump motor mounting bolts.
5. Slide the drive coupling flange over the rubber insert so both halves of the coupling
are snug (not tight) against the rubber flange sleeve.
6. Install the shaft key, and tighten the set screw.
7. Install the 90° liquid tight fitting and flexible conduit on the motor junction box.
8. Re-connect the vacuum pump motor wires inside the motor junction box.
See Figure 9-15
.
9. Re-install the fan guard.
10. Remove the lock(s) and tags from the lockout & tagout.
11. Turn ON power to the VST Control Panel. At the VST Control Panel, put the PLC in
the Maintenance Screen. At the Main Screen, push the Maintenance Screen button
to access the Password Screen then enter the password to access the Maintenance
Screen: Password is 878.
12. Perform a Bump Test to make sure the vacuum pump motor is rotating in the
correct direction.
(The Bump Test is located in Chapter 6: Start-Up & Testing.)
13. After the Bump Test is completed, push the ESC button so the Main Screen is
showing at the PLC.
14. At the GREEN MACHINE, check to make sure the vacuum pump and vacuum pump
motor are running without excessive vibration or noise. Excessive vibration or noise
would indicate the motor, vacuum pump, or rubber flange sleeve may not be
installed correctly.
15. Put the cover on the GREEN MACHINE and lock the hasps.
