Grindex Micro Maintenance manual

Installation, care and maintenance

MICRO www.grindex.com

No: 89 71 36 Revision 1 2007.11

MACRO SOLID

Installation, care and maintenance Micro, Macro, Solid

Product description __________________3

Applications ______________________________ 3

Motor data ________________________________ 3

Technical data_____________________________ 3

Dimensions _______________________________ 3

Performance curves _________________4

Installation __________________________5

Electrical connections ________________6

Earth continuity test________________________ 6

Level regulators ___________________________ 6

Wiring diagram ___________________________ 7

Contents

Operation ___________________________8

Care and maintenance ________________9

Inspection ________________________________ 9

Tightening & lubricating screws______________ 9

Spare parts kits _____________________10

Main parts _________________________ 11

Data plate interpretation

NOTE!

The manual is to be read before installing or

operating the pump.

Grindex pumps are high quality products with expected

reliable operation and long life.

However, should the need arise for a warranty claim,

please contact your Grindex representative.

Warranty claim

Product no

Frequency

Rated voltage

Rated current

Maximum power consumption

Serial number

Qmax

Hmax

Weight

Pump model

Made in Sweden

IEC 335-2-41 Class F IP 68 5 m

Grindex AB Sweden

www.grindex.com

Installation, care and maintenance Micro, Macro, Solid

Applications

Micro and Macro pumps are intended to be used for

pumping water which may contain abrasive particles.

The pumped liquid may contain particles up to a size

which corresponds to the openings in the strainer.

The Solid pump is an electric submersible sludge pump

intended for continuous operation. Solid is designed to

handle contaminated water and water mixed with sand

and gravel.

Product description

Liquid temperature 5 - 35°C (41 - 95°F)

The pH of the pumped

liquid 3 - 9

Depth of immersion max 5 m (16.5 ft)

Weight, excl. motor cable

Micro 10 kg (22 lb)

Macro 12.5 kg (27.5 lb)

Solid 15 kg (33 lb)

Discharge connection 50 mm (2") hose,

2" - 11.5 NPSM or ISO G2

Oil type

Mobil Whiterex or Shell On-

dina etc. with viscosity class

ISO VG 15 - 32

Oil volume 0.17 litre

Technical data

WARNING!

The pump may not be used in an

explosive or ammable environ-

ment or for pumping ammable

liquids.

Ø 185 mm (7.3")

Micro: 400 mm (15.7")

Macro: 430 mm (17")

Ø 185 mm (7.3")

Ø 200 mm (7.9")

Ø 305 mm (12")

510 mm (20")

Dimensioner

Micro

Macro

Solid

Macro

50 Hz, 1~, 970 W (1.3 hp),

2 770 rpm

Voltage

Rated

current A

Starting

current A

115 8.7 43

230 4.2 19

240 4.0 20

60 Hz, 1~, 1100 W (1.5 hp),

3 270 rpm

Voltage

Rated

current A

Starting

current A

115 9.8 40

230 4.8 17

Solid

50 Hz, 1~, 1200 W (1.6 hp),

2 800 rpm

Voltage

Rated

current A

Starting

current A

115 11 43

230 5.2 19

240 5 20

60 Hz, 1~, 1100 W (1.5 hp),

3 330 rpm

Voltage

Rated

current A

Starting

current A

115 9.8 40

230 4.8 17

Micro

50 Hz, 1~, 590 W (0.8 hp),

2 760 rpm

Voltage

Rated

current A

Starting

current A

115 5.1 19

230 2.7 7.5

240 2.4 7.8

60 Hz, 1~, 650 W (0.9 hp),

3 335 rpm

Voltage

Rated

current A

Starting

current A

115 5.5 18

230 2.9 7.0

Motor data

Installation, care and maintenance Micro, Macro, Solid

Performance curves

Each pump is tested in accordance with ISO 9906.

Micro, Macro, Solid 50 Hz Micro, Macro, Solid 60 Hz

Head [ft] / [m]

P1[hp] / [KW]

Capacity [l/s] / [usgpm]

Head [ft] / [m]

Capacity [l/s] / [usgpm]

Micro

Micro Micro

Micro

Macro

Macro Macro

Macro

Solid

Solid Solid

Solid

P1[hp] / [KW]

0123456

0 20 40 60 80 100

0.0

0.2

0.4

0.6

0.8

1.0

0.0

0.5

1.0

1.5 1.2

0123456

020 40 60 80 100

0.0

0.2

0.4

0.6

0.8

1.0

0.0

0.5

1.0

1.5

1.2

Installation, care and maintenance Micro, Macro, Solid

Installation

Pump installation

Run the cables so that they do not have any sharp

bends and are not pinched.

Connect the discharge connection and motor cable.

See “electrical connections”.

Lower the pump into the sump.

Place the pump on a base which will prevent it from

sinking into a soft sump bottom. Alternatively, the pump

can be suspended by its handle just above the sump

bottom.

NOTE!

Where required by local authori-

ties an acceptable motor-circuit

switch or other disconnecting

device shall be provided at the

time of installation.

NOTE!

At certain installations and oper-

ation points on the pump curve

the noise level 70 dB, or for the

actual pump specied noise

level, can be exceeded.

Installation, care and maintenance Micro, Macro, Solid

Start and stop of the pump at different water levels may

be manual or automatic. If automatic start and stop is

required, a level regulator can be ordered (as option).

Level regulators are available for both 50Hz and 60Hz

markets.

The level regulator can be set at different operating lev-

els by adjusting the length of cable. A clamping bracket

situated below the lifting handle holds the level regulator

cable in place.

If continuous pumping is required at any time the level

regulator can be placed in a special rubber bracket on

the lifting handle thus eliminating the level regulator

function.

Level regulators

OFF

WARNING!

Always disconnect the power

supply before mounting or dis-

mounting the cable or/and the

level regulator. Risk for electrical

shock.

Earth continuity test

When performing the earth continuity test, measure be-

tween the earth wire in the motor cable and one of the

screws securing the strainer. See picture below.

Check that the mains voltage and frequence agree with

the specications on the pump data plate.

Make sure that the pump is correctly earthed (ground-

ed).

Electrical connections

WARNING!

All electrical equipment must

be earthed (grounded). This ap-

plies to both pump equipment

and any monitoring equipment.

Failure to heed this warning may

cause a lethal accident. Make

sure that the earth (ground) lead

is correctly connected by test-

ing it.

WARNING!

All electrical work shall be car-

ried out under the supervision of

an authorized electrician.

Local codes and regulations

shall be complied with.

Installation, care and maintenance Micro, Macro, Solid

Green/Yellow

Brown

Blue

BrownBlack

= Connector

Capacitor

Stator

White

Wiring diagram

WARNING!

If persons are likely to come into physical contact with the pump or pumped media (liq-

uid), e.g on construction sites or farms etc, the earthed (grounded) socket must have

an additional earth-(ground-)fault protection device (GFI) connected. When pumping

near a lake (jetties, beaches, ponds and fountains etc) a safety-distance of at least 20 m

(65 ft) between the person and the pump is applicable. The pump must never be placed

directly into a swimming pool. If used in connection with swiming pools, special safety

regulations apply.

WARNING!

Make sure that the gland-sleeve is correctly earthed (grounded) according to the wiring

diagram.

NOTE!

The two earth (ground) leads in the pump are connected via the same connector to

earth (ground).

Alternative with Level regulator

Green/Yellow

Blue

Brown To level

regulator

Green/Yellow

Brown

Blue

BrownBlack

= Connector

Capacitor

Stator

White

Brown

Plug

contact

Plug

contact

Installation, care and maintenance Micro, Macro, Solid

Operation

Before starting

Check the oil level in the oil casing.

Remove the fuses or open the circuit breaker and check

that the impeller can be rotated by hand.

Check that the monitoring equipment (if any) works.

Check the direction of rotation. The impeller shall rotate

clockwise, as viewed from above. When started, the

pump will jerk in the opposite direction to the direction in

which the impeller rotates. See the gure.

Starting jerk

Cleaning

If the pump has been running in very dirty water, let

it run for a while in clean water, or ush it through the

discharge connection. If clay, cement or other similar

dirt is left in the pump it may clog the impeller and seal,

preventing the pump from working.

During a longer period out of operation, the pump must

be test run every other month to prevent the mechanical

seals from sticking together.

WARNING!

Watch out for the starting jerk,

which can be powerful.

WARNING!

Always lift the pump by its carry-

ing handle or lifting eyes, never

by the motor cable or the hose.

Installation, care and maintenance Micro, Macro, Solid

Care and maintenance

Inspection

Regular inspection and preventive maintenance ensure

more reliable operation.

The pump should be inspected at least twice a year,

more frequently under severe operating conditions.

Tightening screws

During assembly or service of the pumps we recom-

mend that the screws be tightened to approximately

6-8 Nm (4.5-6 ft lbs).

Note!

Make sure that the cable gland-nut, strainer/pump hous-

ing securing screws and oil-plug screw are not tight-

ened too hard.

The tightening torque listed above ensures that the

parts are correctly fastened and that the pumps will

operate as intended.

WARNING!

Be sure to disconnect the power

supply before attempting in-

spection, as the pump may start

automatically.

WARNING!

Make sure that the gland-sleeve

is correctly earthed (grounded)

according to the wiring diagram.

NOTE!

The two earth (ground) leads

in the pump are connected via

the same connector to earth

(ground).

Lubricating screws

To maintain screw tightness use a little mineral oil on all

non-stainless screws (not synthetic lubricants!).

Note!

When using stainless steel screws on stainless steel

parts we recommend that Aral Degol GS 460 or Nation-

al Chemseal Thread-Eze lubricants be used to prevent

screws from seizing or getting stuck.

Installation, care and maintenance Micro, Macro, Solid

Spare parts

Spare part kits

Spare parts for the Micro, Macro and Solid pumps are available in handy kits to make service and repair work

easier. Each kit contains an instruction sheet together with the replacement parts.

When ordering please refer to the kit part numbers listed below:

Kit type Micro

590 W, 50 Hz

Micro

650 W, 60 Hz

Macro

970 W, 50 Hz

Macro

1100 W, 60 Hz

Solid

1200 W, 50 Hz

Solid

1100 W, 60 Hz

Impeller Kit 50 852 00 50 852 01 50 853 00 50 852 00 50 894 00 50 894 01

Diffuser Kit 50 964 00 50 964 00 50 964 00 50 964 00

Outer seal Kit 50 966 00 50 966 00 50 966 00 50 966 00 50 966 00 50 966 00

Complete seal

Kit 50 965 00 50 965 00 50 965 00 50 965 00 50 965 00 50 965 00

Bearing kit 50 967 00 50 967 00 50 967 00 50 967 00 50 967 00 50 967 00

Low suction

collar 50 968 00 50 968 00 50 968 00 50 968 00

Please contact your local Micro, Macro and Solid dealer for further details regarding spare parts etc.

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