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Grindex MAJOR, Installation, Care And Maintenance

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Grindex MAJOR Installation, Care And Maintenance Download Page 12

Installation, care and maintenance 

Minor , Major

12

Electrical connections

All electrical work shall be carried out under the 

supervision of an authorized electrician.
Local codes and regulations shall be complied 

with.
Check that the mains voltage and frequency 

agree with the specifications on the pump data 

plate.

NOTE!

 For safety reasons, the earth (ground) 

lead should be longer than the phase and moni­

toring leads. If the motor cable is jerked loose 

by mistake, the earth (ground) lead should be 

the last lead to come loose from its terminal. 

This applies to both ends of the cable.
Make sure that the pump is correctly earthed 

(grounded).
When the pump is connected to the public mains 

it may cause flicker of incandescent lamps when 

starting. In this case the supply authority should 

be notified before installing the pump.

WARNING!

All electrical equipment must 

be earthed (grounded). This 

applies to both pump equip

-

ment and any monitoring 

equipment. Failure to heed 

this warning may cause a le-
thal accident. Make sure that 
the earth (ground) lead is cor-
rectly connected by testing it.

NOTE!

Make sure that the monitoring 

equipment incorporated in the 

product is correctly connected 
and in use.

WARNING!

If the pump is equipped with 

automatic level control or con-
tactor unit, there is a risk of 
sudden restart.

WARNING!

Bear in mind the risk of elec-
trical shock if the electrical 
connections are not correctly 
carried out or if there is fault 
or damage on the pump.

WARNING!

If persons are likely to 

come into physical contact 

with the pump  or pumped 

media (liquid), e.g on con

-

struction sites and farms, 

the earthed (grounded) 

socket must have an addi-

tional earth(ground-) fault 

protection device (GFI) 

connected.

WARNING!

When pumping near a lake 

(jetties, beaches, ponds, 

fountains etc) a safety-dis-

tance of at least 20 m (65 

ft) between the person and 

the pump is applicable. The 

pump must never be placed 

directly into a swim ming 

pool. If used in connection 

with swimming pools, spe-

cial safety regulations apply.

Summary of Contents for MAJOR

Page 1: ...Installation care and maintenance MINOR MAJOR www grindex com No 89 73 87 Revision 02 2008 04 ...

Page 2: ...ance specification or design without notice Guarantee ___________________2 Data plate interpretation ________2 Safety precautions_____________3 Product description ____________4 Applications _____________________ 4 Motor data ______________________ 5 Dimensions and weights ____________ 6 Performance curves ________ 7 10 Transportation and storage _____11 Installation _________________11 Electrical...

Page 3: ...ure that the machine or parts of the machine can not roll or fall over and injure people or dam age property 3 Make sure that the lifting equipment can han dle the weight you want to lift and that it is in good condition 4 Don t work under suspended load 5 Carry out the work on a sturdy workbench 6 Bear in mind the danger of electrical acci dents 7 Check that tools and other equipment are in good ...

Page 4: ...es up to a size which corresponds to the openings in the strainer See drawing The pH of the pumped liquid 5 8 Depth of immersion max 20 m 65 ft For other applications contact your nearest Grindex representative for information WARNING The pump may not be used in an explosive or flammable environment or for pumping flammable liquids WARNING If the pump run dry or snore the pump surface and the sur ...

Page 5: ... 45 400 Y 7 3 49 415 Y 6 9 43 440 D 6 9 46 500 D 6 0 40 550 D 5 3 34 Voltage V Rated current A Starting current A 200 D 17 127 208 D 17 133 220 D 15 104 220 Y 15 103 230 D 15 109 230 Y 15 110 240 D 15 115 240 Y 15 114 380 D 8 7 63 400 D 8 7 67 440 D 7 3 49 440 Yser 7 4 52 460 D 7 1 53 460 Yser 7 3 54 480 D 7 1 54 480 Yser 7 5 57 575 D 5 8 43 600 D 5 9 45 Voltage V Rated current A Starting current ...

Page 6: ...Installation care and maintenance Minor Major 6 Dimensions and weights Minor N Minor H Major H Major N ...

Page 7: ...r H 50 Hz 2 8 3 2 3 6 4 0 4 4 P1 hp kW Capacity l s usgpm 0 4 8 12 16 20 24 0 5 10 15 20 25 30 35 40 40 20 60 80 0 0 100 200 300 400 500 600 Head ft m 4 0 4 5 5 0 5 5 6 0 2 0 2 5 3 0 3 5 4 0 4 5 P1 hp kW Head ft m Capacity l s usgpm 6 4 5 3 130 100 70 40 10 40 35 30 25 20 15 10 5 0 0 2 4 6 8 10 12 14 16 18 0 40 80 120 160 200 240 280 ...

Page 8: ...24 0 5 10 15 20 25 30 35 40 P1 hp kW Head ft m Capacity l s usgpm 0 100 200 300 400 500 600 40 20 60 80 0 5 0 5 5 6 0 6 5 7 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 5 10 15 20 25 30 35 40 45 0 2 4 6 8 10 12 14 16 18 20 Capacity l s usgpm Head ft m P1 hp kW 7 5 6 4 140 120 100 80 60 40 20 0 0 50 100 150 200 250 300 ...

Page 9: ...20 25 30 0 5 10 15 20 25 30 35 40 45 P1 hp kW Capacity l s usgpm Head ft m 9 8 7 6 5 100 80 60 40 20 0 700 600 500 400 300 100 200 0 2 3 4 5 6 7 0 5 10 15 20 25 30 35 40 45 50 0 4 8 12 16 20 24 P1 hp kW Head ft m Capacity l s usgpm 9 5 7 3 160 140 120 100 80 60 40 20 0 0 50 100 150 200 250 300 350 ...

Page 10: ...5 6 7 8 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 45 50 0 200 400 600 800 60 20 80 100 0 40 10 8 6 P1 hp kW Head ft m Capacity l s usgpm 0 10 20 30 40 50 60 0 4 8 12 16 20 24 Capacity l s usgpm Head ft m P1 hp kW 0 50 100 150 200 250 300 350 180 120 60 0 3 4 5 6 7 8 10 6 8 4 ...

Page 11: ...efore starting to work on the pump or moving the pump make sure that the pump is isolated from the power sup ply and cannot be energized This applies to the control cir cuit as well The pump is frostproof as long as it is operating or is immersed in the liquid If the pump is taken up when the temperature is below freezing the impeller may freeze The pump shall be operated for a short period after ...

Page 12: ...oth pump equip ment and any monitoring equipment Failure to heed this warning may cause a le thal accident Make sure that the earth ground lead is cor rectly connected by testing it NOTE Make sure that the monitoring equipment incorporated in the product is correctly connected and in use WARNING If the pump is equipped with automatic level control or con tactor unit there is a risk of sudden resta...

Page 13: ...13 Installation care and maintenance Minor Major SUBCAB 4GX SUBCAB AWG 6 leads Y or D SUBCAB 4GX SUBCAB AWG 9 leads Y or Yser ...

Page 14: ...50 V and below For other voltages when CSA approval is required a transformer is used to reduce the voltage over the thermal contacts As a consequence the transformer has to be disconnected when the connection is changed from 440 460 V Yser to 220 240 V Y If the change is done from 220 240 V Y to 440 460 V Yser the transformer has to be connected ...

Page 15: ...quipped with SMART ROTASENSE rotation control Note the following at start Connect the pump to power If the pump fails to start and the fuses are correct shift two phases in the CEE plug or turn the knob on phase shifter to start the pump NOTE Do not reverse phase sequence while pump motor is running Doing so may cause temporary incorrect rotation resulting in damage to motor electronics and rotati...

Page 16: ...d have a major overhaul in a service shop once a year This requires special tools and should be done by an authorized service shop When the pump is new or when the seals have been replaced inspection is recommended after one week of operation WARNING Before starting to work on the pump or moving the pump make sure that the pump is isolated from the power sup ply and cannot be energized This applie...

Page 17: ... ring on the inspection screw or its sealing surface is dam aged that an O ring is damaged that the cable entry is leaking If there is oil in the inspections chamber the cause may be that the inner mechanical seal is damaged Contact a Grindex serv ice shop Replace or fix worn and damaged parts Make sure that all screws bolts and nuts are tight Replace worn parts if they impair function A check of ...

Page 18: ...new position on the cable replace the seal sleeve check that the seal sleeve and the washers conform to the outside diameter of the cables Replace the cable if the outer jacket is damaged Make sure that the cable do not have any sharp bends and are not pinched If faulty contact an electrician Repair faults and notify supervisor of any faults or defects Contact a Grindex service shop Cables Starter...

Page 19: ...w oil A paraffin oil with viscosity close to ISO VG32 is recommended The pump is delivered from fac tory with this type of oil In applications where poisonous properties are of less concern a mineral oil with viscosity up to ISO VG32 can be used Always replace the O rings on the oil screws Put the screws back and tighten them Changing the oil Lift the pump horizontally with an overhead crane and p...

Page 20: ...f the impeller Loosen and remove the impeller screw and washer Using a 8 mm hexagon bit adaptor allen socket with a 100 mm 4 extension turn the adjust ment screw counter clockwise until the impeller breaks free from the shaft Remove the impeller WARNING Worn impellers often have very sharp edges Use protec tive gloves N H Remove the strainer the suction cover and O ring ...

Page 21: ...er onto the shaft Installing the impeller and setting clearance Make sure that the end of the shaft is clean and free from burrs Polish off any flaws with fine emery cloth Grease end of shaft conical sleeve and the threads of the adjustment screw The proper lubrication is grease for bearings e g Exxon Mobile Unirex N3 or equivalent NOTE Remove surplus grease from conical and cy lindrical surfaces ...

Page 22: ...over in the next step Lock the impeller with a screw driver or similar L min 200 mm 7 9 inch see fig to prevent rotation of the impeller Fit the washer and the greased impeller screw and tighten torque to 22 Nm 16 2 lbf ft Check that the impeller rotates freely When changing an impeller or after service we recommend that the screw is first tightened to the prescribed torque and then turned an addi...

Page 23: ...er there are some special tools exclusively for this pump type without which the servicing of the pump will be difficult and the pump can be very easily damaged Part No Denomination Remarks 51 085 00 Mounting sleeve Mechanical seal unit 51 086 00 Mounting dismantling tool Main bearing Service log Most recent service date Pump No Hours of operation Remarks Sign Tools ...

Page 24: ...Grindex AB Hantverkarvägen 24 Box 538 136 25 Haninge Sweden Tel 46 8 606 66 00 Fax 46 8 745 53 28 marketing grindex com www grindex com 897387 EN 2008 04 ...

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