Unless the motor rotation is reversed, the impeller will run backward. Check the motor
for proper rotation before you place the pump back in service.
Vane
Orientation
Suction
Clockwise
Discharge Discharge
Counterclockwise
Figure 41: Impeller rotation orientation diagram viewed from drive end
6.8 Screw torque values
Capscrew torque in ft-lb (Nm)
*The M6 set screw has a rating of 10 N m.
Size Metric Class 8.8
M10 33.2 (45)
M12 57.5 (78)
M16 142 (193)
M20 277 (376)
M24 480 (651)
M30 954 (1293)
M36 1666 (2259)
6.9 Dealer servicing
If trouble occurs that cannot be rectified, contact your local sales and service
representative and be prepared to provide this information:
1. Complete nameplate data of pump and motor
2. Suction and discharge pipe pressure gauge readings
3. Ampere draw of the motor
4. A sketch of the pump hook-up and piping
6 Maintenance
e-XC INSTRUCTION MANUAL 99
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