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Summary of Contents for Grindex Bravo 20
- Page 1 No: 90 072 01 Revision 1 2005.07 Operation & maintenance manual www.grindex.com BRAVO SLURRY PUMPS...
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Page 2: Table Of Contents
Congratulations on a sound choice! Your choice of a submersible pump from Grindex has given you a pump that will serve you well for a long time to come. Grindex pumps are designed and built for continuous use in hostile work- ing conditions. -
Page 3: Installation And Use
On the bases of these particulars you should check that you have the right power supply, motor controller and fuse arrangement. How to read the data plates Box 538 S-136 25 Haninge SWEDEN www.grindex.com Model Serial No. -
Page 4: This Is How To Install Your Pump
This is how to install your pump Connect the pump to power. If rotation of motor is wrong shift two phases. (Shift two phases in the power supply terminal or in the CEE plug, or turn the knob on phase shifter). If the pump still doesn’t start: Call a qualified electrician and ask him to check the mains and the junctions. -
Page 5: Hose
Hose Kinks in the hose will reduce the pump capacity. Cable and power supply Having the right cable and handling it properly will save you from many malfunctions. WARNING! If the cable sheath is damaged and the cable is lowered into the water, water may enter into the If your cable is too long, junction chamber of the pump. -
Page 6: Permanent Installation
Permanent installation Respect limitations • The pump must not be submerged to more than 20 metres/65 feet. IP-68. • The temperature of the medium must not exceed 40°C/103°F. • The pH-value should be between 4 and 10. • The voltage drop in operation must not exceed 5 %. -
Page 7: Safety And Environment
Safety and environment In this manual On the pump General warning Danger of physical injury Danger! Rotating parts! Electrical hazard! Electrical hazard! Danger of physical injury EC-conformity symbol Rotating parts! General safety instructions Environment • The pumps must be secured and prevented from Parts which are replaced during repair, maintenance rolling during transportation. -
Page 8: Main Parts
Main parts Pump casing Impeller Agitator Discharge outlet Motor housing Rotor unit Stator Shaft Bearings 10 Mechanical shaft seal (2x) 11 Oil chamber 12 Oil screw 13 Cable entry 14 Cable 15 Cover 16 Main cover 17 Terminal board Maintenance Always disconnect the pump from the electical power before inspection or disassembly. -
Page 9: Cable Entry
By screwing-in the cable entry the seal will be retensioned. Bravo 20, 30, 40 • Unscrew the 2 hexagon socket screws (1). • Remove the cable clamp (2). -
Page 10: Checking The Oil Level
Checking the oil level Bravo 20, 30, 40 • Put the pump in a horizontal position so that 2 hexa- gon socket screws are on top and one at the bottom. • Unscrew the level plug (1) and the vent plug (2). -
Page 11: Oil Change
Oil change Bravo 20, 30, 40 • Put the pump in a horizontal position so that the drain plug (3) is at the bottom. • Remove the vent plugs (1) and (2). • Put a receiving bin underneath the drain plug. -
Page 12: Motor Housing
Motor housing Bravo 20, 30, 40 • Place the pump in a vertical position and remove the 4 hexagon socket screws of the motorhousing. • Lift the motor unit very carefully a few cm’s, see fig. If water is present this will come out this way. -
Page 13: Trouble Shooting
Trouble shooting Safety Attention! When working on the motor, make sure • When working on the pump, make sure it cannot that the power is switched off. start unexpectedly! When starting the pump, ensure nobody • Only qualified electricians may do the goes near rotating parts. -
Page 14: Pump Cable Connectors
= The 4th conductor is split up in 3 parts, These 3 parts should be used as ground core. thay have the same total cross section area as the none split core X=Connect the cable leads in GRINDEX external starter according to this sequence. Bravo 20,30,40 DOL... -
Page 15: Wiring Diagrams
Wiring diagrams NOTE The overcurrent protection should be set to AUTO. The tripping current should be max. the rated current of the pump. Note that the scales for direct online and star/delta are different. The Y/D over- load relay should be set at phase current = 0,58 x line current. The Y/D time relay should be set at 3s. 15 (16) •... - Page 16 Notes Grindex AB Box 538 SE-136 25 Haninge Sweden Tel:+46 8 606 66 00 Fax:+46 8 745 16 06 e-mail: grindex@grindex.com www.grindex.com 16 (16) • No: 90 072 01 Rev 1 2005.07...
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