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Manufacturer,
•
Pump type,
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Serial number,
•
Capacity (m³/h),
3.3 Applications
Submersed electric pumps are mainly employed in the following applications:
•
Industrial and civil applications,
•
Irrigation systems,
•
Water supply systems,
•
Mining,
Motors are guaranteed for plant operation up to 20 bar. Maximum allowable water temperature in standard constructions is 30°C. For higher
temperatures, please consult our Technical Department.
The pumps should be used only for the applications specified in par. 3.3.
In case of applications not specified on this manual, please contact DAB PUMPS to check for pump suitability, installation safety and pump life.
Before working on the pump, make sure the electric components of the concerned installation are disconnected from main power supply.
4.
MANAGEMENT
4.1 Storage
During storage, please observe the following precautions:
•
Store the pump in a closed, dry and airy environment.
•
In case of long storage, protect with grease the motor coupling flange against oxidation and rotate periodically by hand the shaft to avoid
possible locking of the same.
•
All motors are filled with a water/ antifreeze mixture to prevent internal freezing up to -30°C.
•
Motors should not be stored or installed with lower temperatures or for periods longer than 12 months; however, if this is unavoidable,
turn the shaft by hand once a month.
•
If the motor has been stored for more than 12 months, disassemble it and check rotating parts and thrust bearing. Just before installation,
drain completely the motor from the water/ antifreeze mixture and fill it with clear water, following the instructions reported on this manual.
•
Protect cable ends against humidity.
•
To avoid any damage to the electric cables, never bend them with a curving radius than lower 6 times their diameter.
•
Protect against direct sunlight the pump/ motor group, the electric cables and, in case the pump will be stored partially dismantled, the
rubber parts and the thrust bearings.
4.2 Transport
Before transportation, please perform the following checks:
•
Weight of pump/ motor group,
•
Overall dimensions of pump/ motor group,
•
Suitability of lifting points.
Pumping units and their accessories are packed in crates suited for transportation to avoid any damage on the way.
However, we recommend to inspect carefully the group at delivery.
The pump should be handled with equipment suited to its weight and to the shape of its crate (see side Fig. 1, page 1). Lifting by hand is allowed
only for weights lower than 20 kilograms. Once unpacked, the pump must be handled using the lifting points as shown in Figure 2 (page 1).
5.
MOTOR-PUMP COUPLING
SMC-SMN borehole pumps are fitted to be coupled to submersible motors with flange and shaft projection:
-
complying with Nema norms for 4" - 6" - 8" motors;
-
according to DAB drawing for motors ≥ 10".
For motor-pump coupling follow scrupulously both instructions concerning the pump and the motor.
Before coupling be sure that motor data plate corresponds to pump data and that also flange and shaft extension coincide.
Verify that motor and pump rotate in the same direction. Make use of protective gloves. Place the motor in vertical position
checking its stability during the whole coupling operation.
Proceed as follows:
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verify that the rotor of motor and pump shaft are turning free by hand. If you make use of standard implements like pliers, screwdrivers or
pins, protect coupling surfaces by suitable tape to prevent damages;
-
clean carefully surfaces to be coupled, smoothing when necessary and removing eventual excessive paint;
-
using the suitable equipment (mobile crane, hoist, etc.), lift the pump and when perfectly vertical over the motor lower it slowly taking care
that the motor shaft enters freely into the pump coupling (Fig. 3, page 1). Safeguard your hands during this operation.
-
pilot coupling keeping the hands outside the pump, far from flanges;
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verify that electric cables of the motor are in correspondence with relevant pump seats; In case of motors with splined shaft projection, we
suggest to lubricate the coupling splines with a light coat of antipollution and waterproof grease against wearing due to the eventual presence
of sand;
ENGLISH
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Head (meters),
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Month/ year of construction,
•
Break Power (kW).
•
Offshore,
•
Nuclear and steam power stations,
•
Fire-fighting equipments
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