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
2
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

3
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
V
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
V
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
V
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
V
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
V
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
V
Rated
current A
Starting
current A
115 5.5 18
230 2.9 7.0
Motor data

Installation, care and maintenance Micro, Macro, Solid
4
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
2
4
6
8
10
12
14
0
10
20
30
40
50
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.5
1.0
1.5 1.2
16
0123456
020 40 60 80 100
0
2
4
6
8
10
12
14
0
10
20
30
40
50
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.5
1.0
1.5
1.2
16

5
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
6
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
ON
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.

7
Installation, care and maintenance Micro, Macro, Solid
1
3L
N
Green/Yellow
Brown
Blue
BrownBlack
= Connector
Capacitor
Stator
White
White
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).
1
3L
N
L
N
Alternative with Level regulator
Green/Yellow
Blue
Brown To level
regulator
Green/Yellow
Brown
Blue
BrownBlack
= Connector
3
1
Capacitor
Stator
White
White
White
Brown
Plug
contact
Plug
contact

Installation, care and maintenance Micro, Macro, Solid
8
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.

9
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
10
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.

11
Installation, care and maintenance Micro, Macro, Solid
Main parts
Micro and Macro
Item Denomination
1. Cable
2. Plug contact
3. Handle/cover
4. Support bearing
5. Pump casing
6. Main bearing
7. Inner mechanical seal
8. Oil plug
9. Outer mechanical seal
10. Diffuser
11. Discharge connection
12. Motor
13. Impeller
14. Strainer
Solid
Item Denomination
1. Cable
2. Plug contact
3. Handle/cover
4. Support bearing
5. Pump casing
6. Main bearing
7. Inner mechanical seal
8. Oil plug
9. Outer mechanical seal
10. Pump housing
11. Discharge connection
12. Motor
13. Impeller
14. Valve unit
12
13
10
14
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3
4
5
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7
8
9
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2
3
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Grindex AB •Hantverkarvägen 24, Box 538, 136 25 Haninge, Sweden •Tel: [phone] •Fax: [phone] •[email protected] •www.grindex.com