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Summary of Contents for Grindex 8123.281 Solid
- Page 1 Installation, Operation, and Maintenance 8123.281 Solid...
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Page 3: Table Of Contents
4.4.3 Connect the motor cable to the pump.......... 16 4.4.4 Cable charts................17 4.5 Check the impeller rotation.............. 18 5 Operation.......................... 20 5.1 Precautions..................20 5.2 Start the pump................21 5.3 Clean the pump................21 6 Maintenance........................22 6.1 Precautions..................22 6.2 Torque values.................23 8123.281 Solid Installation, Operation, and Maintenance... - Page 4 7.6 The pump runs but the motor protection trips........33 7.7 The pump delivers too little or no water..........34 8 Technical Reference......................36 8.1 Application limits................36 8.2 Motor data..................36 8.3 Specific motor data.................36 8.4 Dimensions and weights..............37 8.5 Performance curves................ 38 8123.281 Solid Installation, Operation, and Maintenance...
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Page 5: Introduction And Safety
This includes any modification to the equipment or use of parts not provided by Grindex. If there is a question regarding the intended use of the equipment, please contact a Grindex representative before proceeding. -
Page 6: User Safety
• Visually inspect electrical equipment before use. Remove from service any equipment with exposed wires or visible damage. • Use ground-fault circuit interrupters on all receptacles, or have an assured equipment grounding conductor program. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 7: Biological Hazards
• Clean-up of spills Exceptional sites CAUTION: Radiation Hazard Do NOT send the product to Grindex if it has been exposed to nuclear radiation, unless Grindex has been informed and appropriate actions have been agreed upon. 1.6 End of life product disposal Handle and dispose of all waste in compliance with local laws and regulations. -
Page 8: Spare Parts
Only use the manufacturer’s original spare parts to replace any worn or faulty components. The use of unsuitable spare parts may cause malfunctions, damage, and injuries as well as void the warranty. 1.8 Warranty For information about warranty, see the sales contract. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 9: Transportation And Storage
WARNING: Crush Hazard Always lift the unit by its designated lifting points. Use suitable lifting equipment and ensure that the product is properly harnessed. Wear personal protective equipment. Stay clear of cables and suspended loads. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 10: Temperature Ranges For Transportation, Handling And Storage
Protect the product against humidity, heat sources, and mechanical damage. NOTICE: Do not place heavy weights on the packed product. Long-term storage If the unit is stored more than six months, then the following apply: 8123.281 Solid Installation, Operation, and Maintenance... - Page 11 • Before operating the unit after storage, it must be inspected with special attention to the seals and the cable entry. • The impeller/propeller must be rotated every other month to prevent the seals from sticking together. 8123.281 Solid Installation, Operation, and Maintenance...
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Page 12: Product Description
If automatic start and stop is required, a level regulator can be ordered (as an option). The option is only available for standard pumps. Features Below are some of the features of the level regulators: 8123.281 Solid Installation, Operation, and Maintenance... -
Page 13: The Data Plate
5. Maximum capacity 6. WEEE-Directive symbol 7. Maximum submergence 8. Maximum head 9. Degree of protection 10.Read installation manual 11.Thermal class 12.International standard 13.Maximum power consumption 14.Rated current 15.Manufacturer 16.Country of origin 17.Rated voltage 8123.281 Solid Installation, Operation, and Maintenance... -
Page 14: Installation
(feet per second) Water + coarse gravel 4 (13) Water + gravel 3.5 (11) Water + sand, particle size <0.6 mm 2.5 (8.2) (0.024 in) Water + sand, particle size <0.1 mm 1.5 (4.9) (0.004 in) 8123.281 Solid Installation, Operation, and Maintenance... -
Page 15: Install
Heavier pumps must be lifted and lowered down by crane. Suspend the pump by the lifting handle or the eye bolts with chains or wires. 4. Place the pump on the base and make sure it cannot fall over or sink. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 16: Make The Electrical Connections
These general requirements apply for the electrical installation: • If the pump will be connected to the public mains, then the supply authority must be notified before installing the pump. When the pump is connected to 8123.281 Solid Installation, Operation, and Maintenance... -
Page 17: Grounding (Earthing)
If the power cable is jerked loose, then the ground (earth) conductor must be the last conductor to come loose from its terminal. Make sure that the ground (earth) conductor is longer than the phase conductors at both ends of the cable. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 18: Connect The Motor Cable To The Pump
If the product is rated explosion- proof or intrinsically-safe, then see the specific explosion-proof information in the safety chapter before taking any further actions. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 19: Cable Charts
Crimp isolation Stator leads (U1, U2, U5, U6, V1, V2, V5, V6, W1, W2, W5, W6, Z1, Z5, Z6) Motor protector Current transformer Coil Terminal block Color code standard Code Description Brown Black White Orange 8123.281 Solid Installation, Operation, and Maintenance... -
Page 20: Check The Impeller Rotation
3. Check that the impeller rotates in the correct direction. The correct direction of impeller rotation is clockwise when you look at the pump from above. When started, the pump will react in the opposite direction to the impeller rotation. 8123.281 Solid Installation, Operation, and Maintenance... - Page 21 4 Installation Figure 3: Start reaction 4. If the impeller rotates in the wrong direction, then do the following: – If the motor has a 1-phase connection, then contact a sales or authorized service representative. 8123.281 Solid Installation, Operation, and Maintenance...
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Page 22: Operation
Single phase pumps WARNING: Explosion/Fire Hazard The start capacitor is not designed for many repeated start cycles in a short time. Always wait at least 15 seconds between starting attempts. Maximum allowed: 30 starts per hour. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 23: Start The Pump
Let the pump run for a while in clean water, or flush it through the discharge connection. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 24: Maintenance
During the maintenance and before reassembly, always remember to perform these tasks: • Clean all parts thoroughly, particularly O-ring grooves. • Change all O-rings, gaskets, and seal washers. • Lubricate all springs, screws, O-rings with grease. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 25: Torque Values
The pump should be inspected at least twice a year, more frequently under severe operating conditions. Screw tightening During assembly or service of the pumps we recommend that the screws be tightened to approximately 6–8 Nm (4.5–6 ft-lbs). The tightening torque ensures 8123.281 Solid Installation, Operation, and Maintenance... -
Page 26: Change The Oil
Be careful when opening. Allow the chamber to de- pressurize before removal of the plug. 3. Turn the pump so that the oil hole faces downwards and let the oil run out into a container. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 27: Replace The Impeller
3. Put the oil screw back and tighten it. 6.5 Replace the impeller 6.5.1 Remove the impeller CAUTION: Cutting Hazard Worn parts can have sharp edges. Wear protective clothing. 1. Remove the pump housing unit. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 28: Install The Impeller
2. Check that the impeller screw is clean and easy to screw into the shaft end. This is to prevent the shaft from rotating with the impeller screw. 3. Fasten the impeller: a) Place the washer on the impeller screw. b) Mount the impeller. 8123.281 Solid Installation, Operation, and Maintenance... - Page 29 Tighten the impeller screw. Tightening torque: 9.3 Nm (6.9 ft-lbs) d) Check that the impeller can rotate freely. 4. Mount the pump housing unit. 5. Tighten the screw(s). Tightening torque: 9.3 Nm (6.9 ft-lbs) 8123.281 Solid Installation, Operation, and Maintenance...
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Page 30: Replace The Motor Cable
1. Loosen the cable entry. 2. Remove the pump top. 3. Disconnect the motor cable from the terminals: a) Disconnect the power lead(s). b) Disconnect the ground (earth) lead(s). 4. Remove the motor cable. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 31: Install The Motor Cable
14. If the cable is damaged, then cut off the damaged part and install new terminals. a) Connect the ground (earth) lead(s). b) Connect the power lead(s). 3. Install the pump top. 8123.281 Solid Installation, Operation, and Maintenance... - Page 32 6 Maintenance 4. Tighten the cable entry. Make sure that it bottoms out. 8123.281 Solid Installation, Operation, and Maintenance...
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Page 33: Troubleshooting
Remedy An alarm signal has been Check that: triggered on the control • The impeller rotates freely. panel. • The sensor indicators do not indicate an alarm. • The overload protection is not tripped. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 34: The Pump Does Not Stop When A Level Sensor Is Used
• There are no leaks from the piping and/or stop level. discharge connection. • The impeller is not clogged. • The non-return valve(s) are functioning properly. • The pump has adequate capacity. For information: Contact a sales or authorized service representative. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 35: The Pump Starts-Stops-Starts In Rapid Sequence
Failure to do so could result in death or serious injury. NOTICE: Do NOT override the motor protection repeatedly if it has tripped. Doing so may result in equipment damage. 8123.281 Solid Installation, Operation, and Maintenance... -
Page 36: The Pump Delivers Too Little Or No Water
Failure to do so could result in death or serious injury. NOTICE: Do NOT override the motor protection repeatedly if it has tripped. Doing so may result in equipment damage. 8123.281 Solid Installation, Operation, and Maintenance... - Page 37 If the problem persists, then contact a sales or authorized service representative. Always state the product number and the serial number of the pump, see Product Description on page 10. 8123.281 Solid Installation, Operation, and Maintenance...
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Page 38: Technical Reference
Motor encapsulation Motor encapsulation is in accordance with IP68. 8.3 Specific motor data 1-phase, 50 Hz Motor type: • 2,800 rpm • 900 W (1.2 hp) Voltage (V) Rated current (A) Starting current (A) 8123.281 Solid Installation, Operation, and Maintenance... -
Page 39: Dimensions And Weights
Motor type: • 3,330 rpm • 820 W (1.1 hp) Voltage (V) Rated current (A) Starting current (A) 8.4 Dimensions and weights 512 mm (20.2 in) Ø197 mm (7.8 in) Ø263 mm (10.4 in) 8123.281 Solid Installation, Operation, and Maintenance... -
Page 40: Performance Curves
Weight without motor cable: 17 kg (37 lb) 8.5 Performance curves Test standard Pumps are tested in accordance with ISO 9906:2012, HI 11.6:2012. 50 Hz P1 [kW] H [m] Q [l/s] 60 Hz P1 [kW] H [m] Q [l/s] 8123.281 Solid Installation, Operation, and Maintenance... - Page 44 Visit our Web site for the latest version of this document and more information Services AB 361 80 Emmaboda The original instruction is in English. All non-English www.grindex.com instructions are translations of the original instruction. Sweden Tel: +46-471-24 70 00 © 2011 Grindex Fax: +46-471-24 74 01 http://tpi.xyleminc.com 898443_5.0_en-US_2019-12_IOM_8123.281 Solid...
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