Table of Contents
Advertisement
EBARA Multi-Stage Dry Vacuum Pumps
2. Remove the sight glass.
The sight glass can be cleaned with a clean lint-free wipe and alcohol.
3. Clean the O-ring and check for any damage. Replace the O-ring if it is worn or
damaged.
4. Reposition the sight glass. Be sure the limit lines are on the out-facing surface
and positioned properly (see the preceding diagram).
5. Reinstall the four screws. Be sure to tighten them evenly.
5.5
Vibrations and Noise
Early detection of unusual vibrations or noise reduces the possibility of serious damage.
Careful observation on a regular basis will help to ensure long pump life. Initial
operating levels serve as the basis for comparison.
Check for any unusual or excessive vibration or noise. If any abnormality is found:
1. Check that the pump is level.
2. Check the piping: fittings and support.
3. Check the lubricating fluid level of all gearboxes.
4. Check the motor current for proper operating level.
5. Check the exhaust check valve for proper operation.
5.6
Motor Current
With the pump running, check that the motor current is less than the rated value.
CAUTION
!
Always set the overload to the rated motor current. The overload circuits allow
for a 25% over current.
Rated Motor Current (Amps)
Volts:
190
8.8
1.5kW
12.2
2.2kW
50Hz
19.4
3.7kW
Volts:
190
8.2
1.5kW
930601-P
200
208
210
215
8.8
8.8
8.8
9.0
12.2
12.2
12.4 12.4
19.4
19.6
19.6 20.0
200
208
210 215 220
8.2
8.1
8.0
8.0
380
400
415
4.4
4.4
4.4
6.1
6.1
6.1
9.7
9.7
9.8
230
380
400 415
8.0
8.0
4.1
4.1
Pump Maintenance
420
4.4
6.2
9.8
420
440
460
4.2
4.0
4.0
4.0
480
4.0
26
Hide quick links:
Advertisement
Table of Contents
