Xylem e-MPA Instruction Manual page 27

• Check the distance between the two coupling halves around the circumference with a
gauge (2).
• Re-tighten screws of the support and pump foot without transmitting any stresses and
strains.
Figure 9: Alignment checks
1. Ruler
2. Thickness gauge
Dial gauges can be used in the place of ruler and thickness gauge.
Contact the local sales and service representative for any requests or information.
NOTE: Check alignment of coupling again in operation warm condition and on system
pressure if available and correct, if necessary. Be sure that the unit can be easily turned by
hand.
NOTICE:
Improper alignment of the unit can lead to damages at coupling and unit.
Install the coupling guard
CAUTION:
Never operate the pump without the coupling guard correctly installed.
1. Place the coupling guard — lower half (2) by using the fixing devices — low (2).
2. Insert the adjusting ring (3) with slot downward and press it axially to the motor.
3. Place the coupling guard — upper half (1) using the fixing devices.
4. Screw the fixing devices.
e-MPA, e-MPR, e-MPD Horizontal Multistage Pump INSTRUCTION MANUAL
– The coupling is aligned correctly if the distance between the two coupling halves is
the same at all points around the circumference.
– The radial and axial deviation between the two coupling halves must not exceed
the values set by the manufacturer, during standstill as well as at operating
temperature and under inlet pressure.
4 Installation
25