Gianneschi BMA-M Series User manual

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Gianneschi Pumps and Blowers S.r.l.
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SELF-PRIMING ELECTRO PUMP
BMA-M SERIES
OPERATING MANUAL FOR CENTRIFUGAL SELF-PRIMING
ELECTRICAL PUMP WITH INTEGRATED GRINDER.
Edition
Date
Edited
Emitted
Approved
01
23/01/15
A. Dini
G. Ferrari
C. Gianneschi
Revision
Date
Updated
Emitted
Type of update
Date
Approved

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Gianneschi Pumps and Blowers S.r.l.
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INDEX
1INTRODUCTION .................................................................................................................................... 4
1.1 Preface ............................................................................................................................................. 4
1.2 Safety................................................................................................................................................ 4
1.3 Validity ............................................................................................................................................. 4
1.4 Guarantee ........................................................................................................................................ 5
1.5 Inspection of delivered items........................................................................................................... 5
1.6 Instruction for transport and storage .............................................................................................. 5
1.6.1 Transport ................................................................................................................................. 5
1.6.2 Storage .................................................................................................................................... 7
1.7 Name Plate....................................................................................................................................... 7
1.8 Spare Parts ....................................................................................................................................... 9
2GENERAL............................................................................................................................................. 12
2.1 Pump Description........................................................................................................................... 12
2.2 Condition of use ............................................................................................................................. 13
2.3 Construction Feature ..................................................................................................................... 14
2.3.1 Pump Casing and Impeller..................................................................................................... 14
2.3.2 Diffuser .................................................................................................................................. 15
2.3.3 Mechanical Seal..................................................................................................................... 16
2.4 Self-priming action ......................................................................................................................... 17
2.5 GRinder. ......................................................................................................................................... 17
2.6 Materials ........................................................................................................................................ 18
3INSTALLATION .................................................................................................................................... 18
3.1 Preliminary Operations .................................................................................................................. 18
3.2Installation Guide lines................................................................................................................... 18
3.2.1 Noise Level............................................................................................................................. 18
3.2.2 Piping Installation.................................................................................................................. 19
3.2.3 Suction Pipes ......................................................................................................................... 19
3.2.4 Delivery Pipes ........................................................................................................................ 19
3.3 Electrical Connections.................................................................................................................... 20
3.4 Pre Start-Up Check ......................................................................................................................... 21
3.5 Start- Up ......................................................................................................................................... 21
3.6 Stopping Pump............................................................................................................................... 21

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4MAINTENANCE ................................................................................................................................... 22
4.1 Cleaning.......................................................................................................................................... 22
4.1.1 Cleaning the macerator......................................................................................................... 23
4.1.2 Cleaning the impeller. ........................................................................................................... 23
4.2 Repleacing impeller and Mechanical Seal...................................................................................... 24
4.2.1 Replacing the impeller........................................................................................................... 24
4.2.2 Replacing the mechanical seal .............................................................................................. 25
4.2.3 Adjusting Impeller Clearance ................................................................................................ 26
4.2.4 Adjusting Cutting Clearance .................................................................................................. 28
5TROUBLESHOOTING ........................................................................................................................... 30
6BRUSHES RePLACING (Only DC Version) ............................................................................................ 33
INDEX OF FIGURES.
Figure 1 Lifting instruction for pump unit. ..................................................................................................... 7
Figure 2 Example of pump name plate .......................................................................................................... 8
Figure 3 BMA-M exploded view ................................................................................................................... 10
Figure 4 Body pump internal view. .............................................................................................................. 13
Figure 5 Drain, fill and inspection port......................................................................................................... 14
Figure 6 Gap between Impeller and diffuser................................................................................................ 15
Figure 7 Check of correct gap between Impeller and diffuser..................................................................... 15
Figure 8 Detail of mechanical seal................................................................................................................ 16
Figure 9 Water-fill plug................................................................................................................................. 17
Figure 10 Mechanical seal assembly ............................................................................................................ 26
Figure 11 Impeller face vanes must be within 0.2 –0.3mm diffuser plane for most efficient operation. .. 27
Figure 12 Clearance between rotary and stationary cutter......................................................................... 28
Figure 13 Fixed cutter ring and rotary cutter. .............................................................................................. 29

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1INTRODUCTION
This booklet describes operating procedures for centrifugal self-priming electrical pump “BMA-M” series.
These instructions must be followed to ensure safe and proper installation, operation and maintenance
of the machine. They should be brought to the attention of anyone who installs, operates or maintains the
machine or associated equipment. Ignoring these instructions may invalidate all applicable warranties.
1.1 PREFACE
This manual is intended for technicians and maintenance staff and for those who are in charge of
ordering spare parts.
The use of these machines must be made by qualified and experienced personnel, in full compliance with
local legislation.
This manual contains important and useful information for proper operation and maintenance of this
electrical pump. It also contains important instructions to prevent potential accidents and damage, and to
ensure safe and fault-free operation of this electrical pump.
NOTE
Read this instruction manual carefully before commissioning electrical pump. Familiarize yourself with
el/pump operations and strictly obey to the instructions. Keep this manual with care after reading, and
read as necessary.
The data published here comply with the most recent information at the time of going to press. However
they may be subject to later modifications.
Gianneschi Pumps and Blowers reserves the right to change construction and design of the products at
any time without being obliged to change earlier deliveries accordingly.
NOTE
The manufacturer declines all responsibility in case of accident or damage due to negligence or lack of
observance of instructions given in this booklet, or application in conditions not conforming to details
indicated on motor plate.
All responsibility is also declined for damage caused by improper use.
1.2 SAFETY
This manual contains instructions for working safely with electrical pump. Operator and maintenance
staff must be familiar with these instructions.
This manual has been prepared by Gianneschi Pumps and Blowers with the utmost care. Nevertheless
Gianneschi Pumps and Blowers cannot guarantee the completeness of this information and therefore
assumes no liability for possible deficiencies in this manual.
Gianneschi Pumps and Blowers reserves the right to change safety instructions.
1.3 VALIDITY
The instructions are valid for the following products: BMA-M

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1.4 GUARANTEE
The general guarantee is valid for 24 months from date of material shipment. To check validity of
guarantee, the customer must communicate to Gianneschi Pumps and Blowers both product serial number
and number/date of purchasing document (invoices). The guarantee shall naturally cover any defect in
construction of material manufactured by Gianneschi Pumps and Blowers.
Gianneschi Pumps and Blowers shall not be bound to any guarantee other than the guarantee accepted
by Gianneschi Pumps and Blowers. The guarantee will be immediately invalidated if:
 Service and/or maintenance is not undertaken in strict accordance with instructions;
 The electrical pump is not installed and operated in accordance with the instructions;
 Necessary repairs are not undertaken by our personnel or are undertaken without our prior written
permission;
 Modifications are made to the products supplied without our prior written permission;
 The spare parts used are not original Gianneschi Pumps and Blowers parts;
 The products supplied are not used in accordance with their nature and/or purpose;
 The products supplied have been used amateurishly, carelessly, improperly and/or negligently;
 The products supplied become defective due to external circumstances beyond our control.
All parts which are liable to wear are excluded from guarantee. Damages caused by normal or unusual
wear, wear caused by incorrect use or galvanic currents are not covered by the warranty.
1.5 INSPECTION OF DELIVERED ITEMS
Visually inspect electrical pump upon receiving it. Check for both obvious and hidden damage. If damage
is found, record all necessary information on the bill of lading and file a claim with the final carrier. Check to
be sure that all parts of the shipment, including accessories, are accounted for.
In case of irregularity, contact Gianneschi Pumps and Blowers immediately, signalling the nature of the
discrepancy.
CAUTION
In case of doubt about pump safety, do not use it.
1.6 INSTRUCTION FOR TRANSPORT AND STORAGE
1.6.1 TRANSPORT
The electrical pump is too heavy to be moved by hand. Use the correct transport and lifting equipment.
Usually electrical pump is shipped on pallet. Leave it on pallet as long as possible in order to avoid damages
and to facilitate internal transport.
CAUTION
When using a forklift always set the forks as far apart as possible and lift the package with both forks to
prevent it from toppling over! Avoid jolting the pump when moving it!

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CAUTION
Pump and components are heavy. Failure to properly lift and support equipment could result in serious
physical injury or damage to pumps. Steel toed shoes must be worn at all times.
Electrical pump must always be moved and transported in horizontal position. Prior to move the pump it
is mandatory to verify following items:
 check the total weight of pump;
 find centre of gravity of the pump;
 find and check lifting points location.
For safe lifting to prevent material damages and/or personal injuries is recommended to use ropes or
belts properly positioned on the lifting eyebolts (if present).
CAUTION
When lifting electrical pump always use a proper lifting device, approved to bear the total weight of
the pump. Never go underneath a load that is being lifted!
WARINING
Lifting eyebolts fitted on single components of the unit pump assembly (pump or motor)
should not be used to lift total unit assembly.
If the electric motor is provided with lifting eyebolt, this lifting eyebolt is intended for maintenance
purpose of electrical motor only. The lifting eye is designed to bear the weight of electrical motor only!
It is not permitted to lift a complete pump unit by using only lifting eye bolt fitted on electrical motor!
During transportation, shocks, falls and humidity should be avoided.

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Figure 1 Lifting instruction for pump unit.
1.6.2 STORAGE
After receiving el/pump and inspected it, if it is not immediately installed on the plant, it is recommended
to repackage and store the unit indoors with vibration free, dust free and dry conditions.
Proper storage increases the service life of unit el/pump. For a proper storage proceed as follows:
Store electrical pump unit at indoor clean, dry and vibration free area;
 Do not store el/pump in area with a temperature less than 5°C. For lower temperature it is
mandatory completely drain the pump from any liquids which freeze at temperature of around
0°C;
 Fill body pump with rust-preventative liquid that is compatible with pump gaskets and
elastomers;
 Drain the excessive liquid from the pump;
 Rotate the shaft by hand in order to impregnate all internal surface with rust-preventative liquid;
 Cover the pump with plastic sheet or similar protective material;
 It is recommended that shaft is rotated periodically by hand to prevent binding of moving parts.
1.7 NAME PLATE
Pump name plate includes essential information required to identify pump type and technical data for
electrical motor and hydraulic performances.
Serial number is essential to uniquely identify the pump; this information is necessary to order spare
parts, to replace machine and also for field service inquires.
Before contact Gianneschi Pumps and Blowers company, it is strongly suggested to collect all information
listed on name plate, see Errore. L'origine riferimento non è stata trovata. and refer to Errore.
L'origine riferimento non è stata trovata..

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Gianneschi Pumps and Blowers S.r.l.
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Figure 2 Example of pump name plate
N°
Symbol
Description
1
MP
Machine serial number
2
Type
Pump Model
3
H
Head (max min)
4
Q
Delivery (min/max)
5
Mot
Type of motor (single phase, three phases, direct current)
6
V
Rated Voltage
7
A
Rated current
8
kW
Installed power
9
rpm
Revolution per minute
10
Hz
Rated frequency
11
I.C.L
Insulation class
12
Serv.
Service
13
IP
Index protection
14
Weight
Pump weight
Table 1 Description of name plate fields

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1.8 SPARE PARTS
To correctly identify spare part to be order, please collect following data:
 Pump model;
 Pump serial number;
 Position number;
 Spare part name;
 Quantity of spare parts to be order;
 Exact reference who orders spare parts (company name or name/surname of person, address,
phone number, e-mail contact);
To facilitate selection of spare parts Gianneschi Pumps and Blowers can supplies two kinds of a pre-
defined spare parts kit, standard or extended spare parts kit. These kits include most usually recommended
spare parts for el/pump.
Manufacturer Address
Gianneschi Pumps and Blowers s.r.l.
via G. Pastore, n.° 19/21
55040 Capezzano Pianore (LU) –Italia
Tel.: [phone] Fax.: [phone]
web site: www.gianneschi.net
e-mail: [e-mail]

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Figure 3 BMA-M exploded view