2
Mini-Sumo II ATEX Pump
User and Maintenance Manual
Translation of original instructions
Manual drafted in compliance
With EC Directive 2006/42 and EU Directive 2014/34
C2325IE - WK 39/22
DropsA products can be purchased from DropsA branches and authorised distributors,
Visit the website www.dropsa.com/contact or send an e-mail to [email protected]m
II 2GD
Ex h IIC T4 Gb
Ex h IIIC T135°C Db
3
Table of contents
1. INTRODUCTION ........................................................2
1.1 GENERAL INFORMATION ....................................... 2
1.2 THE MANUFACTURER’S DATA ............................... 2
1.3 Identification plate ................................................ 2
1.4 How to consult this manual ................................... 3
1.5 Personnel qualification .......................................... 4
2. Safety .......................................................................4
2.1 General warnings .................................................. 4
2.2 Residual risks ......................................................... 5
2.3 Pictograms ............................................................ 6
3. Machine description .................................................7
3.1 Intended use and prohibited use ........................... 7
3.1.1 Intended use ....................................................... 7
3.2 Sound emissions .................................................... 9
3.3 Technical features ................................................. 9
3.4 Sizes ..................................................................... 10
3.5 Standard pump parts .......................................... 11
3.5.1 Inverters ........................................................... 11
3.5.2 Fixed flow pumping elements .......................... 11
3.5.3 Minimum and maximum indicators for
grease/oil .................................................................. 12
3.5.3.1 Minimum/maximum capacitive level for
grease ........................................................................ 12
3.5.3.2 Minimum/maximum laser level for oil/grease
.................................................................................. 12
3.5.3.2 Minimum/maximum level with float for oil .. 12
3.5.4 Paddle for grease and oil (standard version) ... 12
3.5.5 Electrical control box ........................................ 12
3.6.1 Earth connections ............................................. 14
4. Installation.............................................................. 15
4.1 Receipt and checking of the contents .................. 15
4.2 Packaging ............................................................ 15
4.3 Transport and handling ....................................... 16
4.4 Storage ................................................................ 16
4.5 Environmental conditions .................................... 16
4.6 Installation .......................................................... 17
4.7 Electrical connection ........................................... 18
5. Operating instructions ............................................ 18
5.1 Preliminary operations ........................................ 19
5.1.1 Loading of grease in the tank ........................... 19
5.3 Starting the pump ............................................... 20
5.4 Stopping the pump .............................................. 20
6. Adjustments ........................................................... 21
6.1 Level probe adjustment/calibration .................... 21
6.1.1 Connection of the minimum capacitive level ... 21
6.1.2 Calibration thresholds of the laser probe
0295130, 24V cc Out 4 ÷ 20mA / 2 NO (4 thresholds)
.................................................................................. 22
6.1.3 REED 0295150/0295160 float connection ....... 23
7. Maintenance .......................................................... 23
7.1 General warnings ................................................ 23
7.2 Table of operations ............................................. 24
7.2. 1 Check piping joints .......................................... 25
7.2. 2 General cleaning of the pump ......................... 25
7.2.4 Replacement of pumping elements ................. 25
8. Troubleshooting .................................................... 26
8.1 Faults, causes and remedies ............................... 26
9. Order information .................................................. 27
9.1 Standard version ................................................. 27
9.2 Spare parts .......................................................... 28
10. Additional information ......................................... 28
10.1 Waste disposal .................................................. 28
10.2 Toxic-harmful waste .......................................... 28
10.2.1 Temporary storage ......................................... 29
10.2.2 Characteristics of the containers .................... 29
10.2.3 Registration obligations ................................. 29
10.3 Dismantling of the machine .............................. 30
10.4 Disposal of electronic parts (WEEE directive) .... 30
11 Annexes ................................................................. 31
11.1 Hydraulic drawings ........................................... 31
Copyright…………………………………………………………………..32
2
1. INTRODUCTION
1.1 GENERAL INFORMATION
Through this manual we want to provide you with all the important information for the safety of the people involved in
the installation, use, maintenance and disposal of the MINI SUMO II ATEX pump.
The latest version of this manual is available from the Technical-Commercial Office or by consulting our website
http://www.dropsa.com.
This manual, the original of which is written in ITALIAN, is an integral part of the pump and must be kept with care for its
entire life.
If the pump is sold, rented out or loaned for use, the manual must be delivered to the new user together with the EC
declaration of conformity.
It is forbidden to carry out any operation on the pump before having carefully read and understood all the instructions
contained in this manual.
The images contained in this manual are for illustrative purposes and are not binding for the Manufacturer who reserves
the right to make changes to components and/or parts for improvement purposes or for other reasons without updating
this manual if they do not alter operation and safety of the pump.
1.2 THE MANUFACTURER’S DATA
DropsA SpA
Via Benedetto Croce, 1
20055 – Vimodrone (MI) – ITALY
Telephone number +39 02 250 791
Fax number +39 02 250 79 767
E-mail: [email protected]t
Website: http://www.dropsa.com
1.3 Identification plate
On the front of the pump tank there is a label showing the product code and its basic characteristics.
WARNING
It is forbidden to remove the pump
identification plate
WARNING
The pump includes some items made with alloyed metals that have a percentage of
Lead (CAS 7439-92-1) <0.35% weight. For details see the section on disposal.
3
1.4 How to consult this manual
For a better understanding of the information provided in this manual, warnings or instructions considered critical or
dangerous are highlighted with the following symbols: see the table above.
This manual must be read before carrying out any operation. We recommend that you comply with the safety regulations
of the country in which the equipment is installed and employee specialised personnel in the various maintenance, use,
installation, etc. necessary during the life of the equipment.
This manual uses safety indications and symbols in accordance with the ANSI Z535, ISO 3864 and ISO 7010 standards listed
below:
Warnings Table
Warning
Damage
to
Definition
Consequences
People
Indicates a hazardous situation
that, if not avoided, will certainly cause
death or serious injuries.
Death or severe injury,
paralysing.
Indicates a hazardous situation
that, if not avoided, could cause
death or serious injuries.
Possible death or
serious injuries.
Indicates a hazardous situation
that, if not avoided, could cause
mild or moderate injuries.
Possible mild or
moderate injuries
What
Indicates practices not related
to personal injury.
Tips or other information.
Damage to things and
not to people
Table of symbols
HAZARD
PROHIBITION
OBLIGATION
General hazard
General prohibition
General obligation
Laser beam hazard
No smoking or use of
open flames
It is mandatory to read
the instructions
Electricity hazard
Do not enter with
watches and metal
objects
It is mandatory to use
hearing protection
Hot surface hazard
Do not touch
It is mandatory to use eye
protection
Vessel under pressure
hazard
Do not extinguish
with water
It is mandatory to ensure
earthing
Danger of crushing
hands
It is mandatory to
disconnect the power
Explosive area hazard
It is mandatory to wear
protective gloves
HAZARD
WARNING
CAUTION
WARNING
4
1.5 Personnel qualification
To ensure that all operations performed on the pump take place in safe conditions, the operators in charge of operations
must have the qualifications and requirements to carry out the related operations.
The operators are classified as follows:
FIRST LEVEL OPERATOR:
unqualified personnel, i.e. without specific skills, able to perform only simple tasks.
MECHANICAL MAINTENANCE OPERATOR:
qualified technician able to intervene on the mechanical parts to carry out all necessary adjustments,
maintenance and repairs. This operator is not authorised to work on electrical systems in the presence of voltage.
ELECTRICAL MAINTENANCE OPERATOR:
qualified technician in charge of all electrical interventions. This operator can operate in the presence of voltage
inside cabinets and junction boxes.
2. Safety
2.1 General warnings
This manual must be read before carrying out any operation on the pump. We recommend that you comply with the
safety regulations of the country in which the pump is installed and employee specialised personnel in the various
maintenance, use, installation, etc. necessary during the life of the pump.
The main rules of conduct to be observed to work with a good level of safety are as follows:
▪ The operations of installation, use, maintenance, etc. must always be carried out by qualified and trained personnel.
▪ Always wear the required personal protective equipment.
▪ Carry out all the cleaning, adjustment and maintenance operations making sure that all the energy supplies are
isolated.
▪ Install the pump away from passageways to prevent it from being hit or damaged.
▪ Do not install or use the pump in classified area other than that indicated on the pump’s plate
▪ Do not direct jets of water against electrical parts, even if they are protected by casings.
▪ Do not work while carry out work or maintenance operations.
▪ Check the signs and pictograms applied to the pump; if they are damaged inadvertently, immediately replace them
with identical ones.
▪ Check the chemical compatibility of the materials with which the pump is built with the fluid to be pumped. In
addition to damage to the pumps and pipes, incorrect selection of fluid could cause serious risks for people (leakage
of irritating and harmful products) and for the environment.
▪ Do not exceed the maximum operating pressure allowed by the pump and the components connected to it. If in
doubt, consult the data on the machine plate.
▪ Only use original spare parts.
▪ If it is necessary to replace components with others, make sure they are suitable for operating at the pump’s
maximum working pressure.
DropsA SpA disclaims any liability for damage to persons or property resulting from improper use of the pump, from
tampering with its safety equipment or from non-compliance with workplace safety regulations.
WARNING
It is necessary to read the equipment’s
User and Maintenance Manual to know
the risks of use.
5
2.2 Residual risks
The hazards that are not completely eliminated, but considered acceptable, are listed below:
CAUTION
When filling the lubricant, use protective goggles and gloves to avoid direct contact.
Before any intervention, check the absence of residual pressures in each branch of
the lubricant circuit.
WARNING
Use only suitable lubricant. The
characteristics are shown both on the
pump and in this User and Maintenance
Manual (if in doubt, contact the DropsA
S.p.A. Technical Office).
HAZARD
Disconnect the power supply before any
intervention, making sure that no one can
reconnect it. All installed equipment
(electrical and electronic), tanks and basic
structures, must be connected to the
earth line.
HAZARD
The lubricant used in the lubrication
circuits is flammable at temperatures
>250°C. Prevent it from coming into
contact with hot parts or open flames.
6
HAZARD
Do not install or use the pump in an area
classified as Zone 0 or Zone 20 according
to EEC Directive 99/92. Periodically
remove the accumulated dust deposited
on the pump, as indicated in the manual.
2.3 Pictograms
Pictograms with warning and safety symbols for operators are applied to the pump. Read carefully and familiarise yourself
with the symbols and their messages before using the pump.
DropsA SpA declines all liability for damage to persons or property due to failure to comply with the rules indicated by
the pictograms or their imperfect conservation.
7
3. Machine description
The MINI SUMO II ATEX series of lubrication pumps is particularly suitable for double line and progressive systems and can
adapt to many needs without mechanical modifications even after installation. In fact, the pressure, the quantity of
lubricant supplied, the type of lubricant or the type of distribution can be varied by choosing from a set of components,
which are perfectly compatible and easily assembled.
This construction technique is essentially based on the following modules:
▪ Electric motor
▪ Pump body
▪ Two pumping elements
▪ Tank
▪ Outlet valves and unit (inverter, pressure control valve, etc.).
The supporting structure is unique for each version, the double pumping element constitutes the essential module.
The pump unit usually has a single outlet; however, you can request a version with separate outlets.
Three types of grease and oil tanks with different volumes (10, 30 or 100 kg÷22, 66 or 220 lb) can be placed on the pump
body with paddle and electric level indicators.
The MINI SUMO II ATEX electric pump is completely protected from the external environment and can operate without
difficulty even in the most severe environmental conditions.
3.1 Intended use and prohibited use
3.1.1 Intended use
The MINI SUMO II ATEX pump is the DropsA electric pump ideal for use with single and dual line systems.
Lubrication systems designed with the Dual Line system are generally used to lubricate multiple points on large machines
and in difficult operating conditions.
WARNING
The pump is designed to work with lubricants with a maximum NLGI 2 grade.
Use lubricants compatible with NBR seals.
Any residual lubricant used for assembly and testing is NLGI 2 grease.
A comparison table is shown between the NLGI (National Lubricating
Grease Institute) and ASTM (American Society for Testing and
Materials) classification for greases, limited to the values affecting the
pump.
For further information on the technical characteristics and safety
measures to be adopted, consult the Product Safety Data Sheet (EEC
Directive 93/112) relating to the type of lubricant chosen and
supplied by the manufacturer.
The pump has been designed and built to be installed and work in an environment classified as Zone 1 and 21, Zone 2 and
22, pursuant to EEC Directive 99/92.
GREASE
NLGI
ASTM
000
445 – 475
00
400 – 430
0
355 – 385
1
310 – 340
2
265 – 295
8
Prohibited Use
HAZARD
Any use other than that for which the
pump was built represents an abnormal
condition and, therefore, can cause
damage to the pump and be a serious
danger to the operator.
Below are a series of operations, relating to the improper use of the pump, which are not permitted under any
circumstances.
▪ The pump has been designed and built to be installed and work in an environment classified as Zone 1 and 21, Zone
2 and 22, pursuant to EEC Directive 99/92; do not install or use the pump in an area not classified as Zone 0 or Zone
20.
▪ Do not operate the pump empty, in the absence of grease.
▪ Install the pump away from passageways to prevent it from being hit or damaged. If the pump is involuntarily hit or
bumped, have it overhauled by DropsA, and have the latter also check for any damage that compromises its
explosion-proof construction features.
▪ Always connect all components to the prepared earth bar. Following the customer's electrical installation, always
check the earth continuity of all elements on board the pump.
▪ Install the pump in a system equipped with a continuous monitoring system for the presence of lubricant.
▪ It is forbidden to use pneumatic or electric auxiliary equipment (for example, drills, welders, screwdrivers, lifting
platforms, etc.) that are not suitable for the potentially explosive environment in which the product operates. All
equipment used must be suitable for Zone 1 or 21.
▪ Do not modify the product or replace its parts without the manufacturer's written authorisation.
▪ Use the pump only in industrial installations, any other use of the machine is prohibited.
▪ Do not use the pump in conditions other than those indicated in this user and maintenance manual.
▪ Do not use the pump in an explosive or aggressive atmosphere or with a high concentration of dust or oily
substances suspended in the air.
▪ Do not carry out modifications, transformations, repairs or maintenance work on the pump on your own initiative.
Maintenance work may only be carried out in accordance with the provisions of this manual.
▪ Do not use non-original spare parts or parts that are not provided by the Manufacturer.
▪ Do not use the pump for substances other than those allowed. The use of unauthorized materials can damage the
pump, degrade its performance or reduce its useful life.
▪ Do not expose the pump to rain, steam, excessive humidity or direct sunlight.
▪ Do not install the pump in rooms subject to possible flooding.
▪ Do not place or store the pump near flammable or combustible materials or substances.
▪ Do not open the oil filler or drain plugs when operating the pump.
FLUIDS THAT ARE NOT PERMITTED
FLUIDS
HAZARDS
Lubricants with abrasive additives
Wear of the components inside the pump
Lubricants with silicone additives
Seizing of the pump
Petrol – solvents – inflammable liquids
Fire – explosion – damage to the gaskets
Corrosive products
Pump corrosion - damage to people
Water
Pump oxidation
Food substances
Contamination of the same
For more detailed information regarding product compatibility with particular fluids, contact the DropsA SpA Technical
Office.
9
3.2 Sound emissions
In normal working conditions, the emission of sound does not exceed 70 dB “A” at a distance of 1 meter (39.3 inches) from
the pump.
3.3 Technical features
GENERAL FEATURES
Empty weight (10 Kg tank)
40 Kg ÷ 88 lb
Empty weight (30 Kg tank)
45 Kg ÷ 99 lb
Empty weight (100 Kg tank)
60 Kg ÷ 132 lb
ELECTRICAL FEATURES
Motor power supply
-cod. 3301771-
230Δ/400Y - ±5% 50Hz
220Δ/380Y - ±5% 50Hz
240Δ/415Y - ±5% 50Hz
265Δ/460Y - ±5% 60Hz
Insulation class F
-cod. 3301781-
480V - ±5% 60Hz ±2%
Insulation class F
Rated motor power
0,37 Kw
Pneumatic motor
Max power 2.7 Kw
Power supply 4 ÷ 6 bar
Air consumption 56,6 L/sec
Degree of motor protection
IP 55
Minimum level
Laser (grease) - Float (oil)
Maximum level
Float (grease/oil)
HYDRAULIC SPECIFICATIONS
Pumping system
Piston
Flow rate (2 pumping element)
110 cc/min
Maximum operating pressures
380 bar (5511 psi)
Outlet connection
G3/8” BSP
Tank capacity
10-30-100 Kg (22-66-220 lb)
Filling filter
Filtering degree 300 µ
By-pass
Adjustable 0÷380 bar (0÷5511 psi) – pre-set 300 bar (4350
psi)
Temperature of use
- 20 + 40C (- 4 ÷104°F)
Operating humidity
90 % rel. humidity
Acceptable lubricants (1)
Lubricating oil Min. 32 cSt; grease Max. NLGI2
Storage temperature
-40 +65°C (-40-149°F)
Continuous sound pressure level
< 70 dB(A)
Note: The features refer to the use temperature of +20°C (+68°F)
(1) Should a different product be used, consult with DropsA SpA for suitability of use.
10
3.4 Sizes
10 Kg
30 Kg
100 Kg
A
389 [15.3]
578 [22.7]
1028 [40.5]
B
756 [29.8]
945 [37.2]
1395 [54.9]
C
659 [25.9]
848 [33.4]
1298 [51.1]
D
614 [24.2]
803 [31.6]
1253 [49.3]
E
Ø313 [12.3]
Ø313 [12.3]
Ø413 [16.25]
11
3.5 Standard pump parts
STANDARD PUMP PARTS
1
Tank
10
Earth bar
2
Gear box
11
Minimum capacitive level (for grease pump)
3
Pumping element
12
Min.-Max. laser level
4
By-pass
13
Minimum float level (for oil pump)
5
Pressure gauge
14
Grease pump loading
6
Inverter
15
Oil pump loading
8
Pump discharge line 1
16
Protection bulkhead
9
Pump discharge line 2
3.5.1 Inverters
For the technical features and how to use the inverters, use the specific product manuals attached to the pump.
3.5.2 Fixed flow pumping elements
The pump is configured with one or two fixed flow pumping elements (55 cm^3/ min for each pumping element).
There is a dry seal between the piston and the pumping body since an interposed gasket is not provided.
The pumping element check valve is a conical seal. This solution ensures excellent system tightness at high operating
pressures (Max. pressure 380 bar – 5511 psi).
The pumping elements are mounted on the pump body without the need to disconnect the line piping with a threaded
connection, which makes it easy to assemble/disassemble.
12
3.5.3 Minimum and maximum indicators for grease/oil
3.5.3.1 Minimum/maximum capacitive level for grease
For the minimum level, the pump can be equipped with an Exi capacitive sensor and an Exd. microswitch for the maximum
level.
See section 6.1.1 for information on connections and calibrations.
3.5.3.2 Minimum/maximum laser level for oil/grease
The pump can be equipped with laser level, 2 configurable digital outputs and 4÷20Ma protected by Exd case.
See section 6.1.2 for information on calibrations.
3.5.3.2 Minimum/maximum level with float for oil
A rod probe with double float mounted on the pump cover allows to read the minimum oil level (low level) and the
maximum level (which allows to stop the automatic filling of the tank).
See section 6.1.3 for information on connections.
3.5.4 Paddle for grease and oil (standard version)
Three tanks are provided with capacities of 10, 30 e 100 kg (22 - 66 – 220 Lb).
The tanks are supplied standard with a paddle, which must not be disassembled during assembly or replacement. Under
the paddle, there is a standard electro-galvanised steel mesh with 0.5 mm (0.02 in.) holes. The pump is protected from
possible foreign bodies that could be inadvertently present while the tank is being loaded.
3.5.5 Electrical control box
An increase safety box can be mounted on the base structure (see image below). This box contains the terminal board
where all the electrical part of the pump are wired (motor, levels, solenoid valve).
By choosing this option, the pump will be supplied complete with wiring already connected to the terminal board
mentioned above.
The image below shows the electrical connections available on the terminal board for the standard supply (See Section 11
Order information).
CAUTION
The distance of the air path through the insulating surfaces of
the Intrinsically Safe terminals 15 and 16 (Intrinsically Safe
capacitive sensor) must be greater than 50 mm from the other
circuits/terminals.
13
The image below shows the electrical connections relative to the model with alternative supply.
(See Section 11 Order information).
14
3.6.1 Earth connections
The image below shows the positioning of the earth bar.
For an overview of the pump refer to the assembly drawing. The MINI SUMO II ATEX pump must be connected to a safe
earth system. Always connect all parts to the prepared earth bar. Following the customer's electrical installation, always
check the earth continuity of all elements on board the pump.
15
4. Installation
4.1 Receipt and checking of the contents
When receiving the pump check that the packaging is intact or if it shows evident signs of damage due to transport or
storage conditions. If everything is intact, unpack and check the pump.
Otherwise, in the case of damage to the packaging, immediately inform the transport agent and manufacturer.
Always check that the material received corresponds to that indicated on the consignment note.
The packaging must be opened using all precautions to avoid damage to people or the contents of the same.
4.2 Packaging
The pump is packaged as follows:
▪ It is attached to a metal pallet with lateral packaging and wooden top.
The wood can be reused or recycled in compliance with the laws in force in the country where the pump is installed. Other
materials such as cardboard, plastic or the protective film must be disposed of in accordance with local regulations in
force.
Do not burn or disperse the packaging components into the environment.
16
4.3 Transport and handling
HAZARD
Transport, lifting and handling operations must be carried out by
expert and qualified personnel.
For transport, prepare the pump as shown in the next section
and empty the oil tank.
The pump may be lifted and handled with forklifts or trans pallets suitable for the weight of the same, which is shown in
the technical data table and, in any case, on the identification plate. Manual handling and transport are allowed only in
compliance with local regulations on the matter.
4.4 Storage
Empty the pump from the oil or grease present inside it and close the intake and exhaust with the appropriate
protections. The pumps must be stored in their packaging and stored in covered, dry, protected places not exposed to
direct sunlight and at temperatures within the range indicated in the technical features table.
4.5 Environmental conditions
The pump must be installed and used in a covered and sufficiently lit room. The installation area must meet all the
requirements regarding heights, air changes and comply with the requirements imposed by current legislation.
Temperature
The required ambient working temperature values are shown in the technical features table.
Lighting
All areas must be lit with uniform lighting and sufficiently to ensure all the operations provided for in the manual, avoiding
shadow areas, glares and eye strain.
CAUTION
Lift the equipment taking into consideration the direction
shown on the cardboard package.
During storage, ensure that the ambient temperature is
between -40 and + 65°C (-40÷149°F).
Before starting, wait until the pump has reached a
temperature of -10°C (+ 14°F).
17
4.6 Installation
The pump has been designed and built to be installed and work in an environment classified as Zone 1 and 21, Zone 2
and 22, pursuant to EEC Directive 99/92; do not install or use the pump in an area not classified as Zone 0 or Zone 20.
There are no pump assembly operations. The pump is attached to a metal pallet, which allows safe handling with trans
pallet or forklift. The pallet has been designed to be installed in the system since it is equipped with 4 Ø14 mm holes
suitable for fastening it to the floor.
Provide adequate spaces (as per installation diagram) to avoid abnormal postures or the possibility of collisions.
Install the pump away from passageways to prevent it from being hit or damaged. If the pump is involuntarily hit or
bumped, have it overhauled by DropsA, and have the latter also check for any damage that compromises its explosion-
proof construction features.
Install the pump in a system equipped with a continuous monitoring system for the presence of lubricant.
Subsequently it is necessary, as previously described, to carry out the hydraulic connection of the pump to the machine
and then to carry out the connection to the control panel.
HAZARD
Pump connections must only be carried
out by qualified and specially trained
personnel.
Disconnect the power supply before any
intervention, making sure that no one can
reconnect it.
18
4.7 Electrical connection
HAZARD
Pump connections must only be made by qualified and
specially trained personnel.
Disconnect the power supply before any intervention, making
sure that no one can reconnect it.
All installed equipment (electrical and electronic), tanks and
basic structures, must be connected to the earth line.
The earth conductor must be 100 mm longer than the phase
conductors.
The pump must be installed in an industrial environment compliant with current legislation.
To prevent the danger of electrocution due to direct or indirect contact with live parts the power supply line must be
adequately protected by a special differential magnetothermic switch with a tripping threshold of 0.03 Ampere and a
maximum tripping time of 1 second.
Standard three-phase motor connection 230/400 Volt
HAZARD
The cables must be correctly sized according to the loads and the type of specific use.
The degree of insulation must be proportionate to the voltages applied.
Use cables which do not propagate flames and with low emission of toxic fumes in
case of fire.
It is mandatory to carry out the electrical checks required by the regulations in force
depending on the use of the pump.
CAUTION
A disconnecting switch must be installed on the machine that houses the pump.
The breaking capacity of the disconnecting switch must be ≤ 10 kA and the rated
current In = 6 A
Input Volt 400 three-phase
Input Volt 230 three-phase
Y Connection
Connection
19
5. Operating instructions
CAUTION
When filling the lubricant, use protective goggles and gloves to avoid direct contact.
Before any operation, check the absence of residual pressures in each branch of the
lubricant circuit.
It is necessary to carry out some preliminary checks before using the MINI SUMO II ATEX pump:
▪ Check the integrity of the pump.
▪ Check the earth continuity of all its parts.
▪ Check that the pump is at operating temperature and that the pipes are free of air bubbles.
▪ Check that the electrical connection is made correctly.
▪ With the pump running, check that the rotation direction of the electric motor is that indicated by the arrow on the
motor protective casing. If it turns backwards, reconnect as indicated on the wiring diagram attached to the motor.
▪ The unit can only be opened and repaired by specialized personnel.
5.1 Preliminary operations
5.1.1 Loading of grease in the tank
To load grease in the pump tank proceed as follows:
1) Unscrew the cap using an appropriate wrench;
2) Use the ½ ”fitting to fill the tank with grease.
The tank must be filled until reaching the maximum level; this level is signalled by the lifting of the level rod or,
the laser level probe (optional).
3) Screw the cap back on.
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