Stübbe ETL Series User manual

Plastic
Sump Pump
Original Operating Manual Series ETL
Version BA-2015.09.17
Print-No. 300 106
TR MA DE Rev002
ASV Stübbe GmbH & Co. KG
Hollwieser Strasse 5
32602 Vlotho
Germany
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet: www.asv-stuebbe.com
We reserve the right to make technical changes.
Read carefully before use.
Save for future use.
Distributed in the UK by.....
Pump Engineering Limited. Unit B1, Riverside Industrial Estate,
Littlehampton, West Sussex, BN17 5DF, United Kingdom
Tel: [phone] Fax: [phone]
email: [email protected] Web: www.pumpeng.co.uk

Table of contents
Table of contents
1 About this document ............................... 4
1.1 Target groups ................................. 4
1.2 Other applicable documents ................ 4
1.3 Warnings and symbols ....................... 5
2 Safety ................................................. 6
2.1 Intended use .................................. 6
2.2 General safety instructions .................. 6
2.2.1 Product safety ................................ 6
2.2.2 Operator's obligations ........................ 7
2.2.3 Obligations of personnel ..................... 7
2.3 Specific hazards .............................. 7
2.3.1 Hazardous pumped liquids .................. 7
3 Layout and function ................................ 8
3.1 Labels ......................................... 8
3.1.1 Type plate ..................................... 8
3.2 Description .................................... 8
3.3 Layout ......................................... 8
4 Transport, storage and disposal .................. 9
4.1 Transport ...................................... 9
4.1.1 Unpacking and inspection upon
delivery ........................................ 9
4.1.2 Lifting ......................................... 9
4.2 Storage ....................................... 10
4.3 Disposal ....................................... 10
5 Setup and connection .............................. 11
5.1 Preparing the setup .......................... 11
5.1.1 Check operating conditions ................. 11
5.1.2 Preparing the installation site ............... 11
5.1.3 Surface preparation .......................... 11
5.2 Setting up ..................................... 11
5.3 Planning the pipes ........................... 12
5.3.1 Specifying supports and flange
connections ................................... 12
5.3.2 Specifying nominal widths ................... 12
5.3.3 Optimizing changes of cross section and
direction ....................................... 12
5.3.4 Providing safety and control devices
(recommended) .............................. 12
5.4 Connecting the pipes ........................ 12
5.4.1 Keeping the piping clean .................... 12
5.4.2 Installing the pressure pipe .................. 12
5.4.3 Inspection for stress-free pipe
connections ................................... 12
5.5 Electrical connection ......................... 13
5.5.1 Connecting the motor ........................ 13
5.5.2 Check direction of rotation ................... 13
5.6 Performing the hydrostatic test .............. 13
6Operation............................................ 14
6.1 Preparing for commissioning ................ 14
6.1.1 Checking downtimes ......................... 14
6.1.2 Filling and bleeding .......................... 14
6.2 Commissioning ............................... 14
6.2.1 Switching on .................................. 14
6.2.2 Switching off .................................. 14
6.3 Shutting down the pump ..................... 15
6.4 Restoring the pump to service .............. 16
6.5 Operating the stand-by pump ............... 16
7 Maintenance ......................................... 17
7.1 Inspections ................................... 17
7.2 Maintenance .................................. 17
7.2.1 Maintenance in accordance with maintenance
schedule ...................................... 17
7.2.2 Cleaning the pump ........................... 18
7.3 Dismounting .................................. 18
7.3.1 Preparations for dismounting ................ 18
7.3.2 Dismounting hydraulic system .... . . . . . . .... 18
7.3.3 Dismounting coupling and intermediate
ring ............................................ 18
7.3.4 Dismounting V-rings ......................... 19
7.3.5 Dismounting shaft bearing ................... 19
7.4 Replacement parts and return .............. 19
7.5 Installing ...................................... 20
8 Troubleshooting .................................... 21
9 Appendix ............................................. 23
9.1 Replacement parts ........................... 23
9.1.1 Part numbers and designations ... . . . ...... . 23
9.1.2 Drawing ETL 20-100 to 65-200 ............. 24
9.1.3 Drawing ETL 80-200 ......................... 25
9.2 Technical specifications ...................... 26
9.2.1 Ambient conditions ........................... 26
9.2.2 Sound pressure level ........................ 26
9.2.3 Flange tightening torques ................... 26
9.2.4 Sole plate tightening torques . . . . . . . . . .. . .. .. 26
9.2.5 Tightening torques of casing screws . . . . .... 26
9.2.6 Installation dimensions and filling
heights ........................................ 27
9.3 Maintenance plan ............................ 27
9.4 Lubrication .................................... 28
9.4.1 Lubricating points ............................ 28
9.4.2 Lubricant ...................................... 28
9.5 Declaration of conformity in accordance with
EC machinery directive ...................... 29
2 ETL BA-2015.09.17 300 106

Table of contents
List of figures
Fig. 1 Type plate (example) ........................ 8
Fig. 2 Layout ......................................... 8
Fig. 3 Replacement parts ETL 20-100 to
65-200 ........................................ 24
Fig. 4 Replacement parts ETL 80-200 ............. 25
Fig. 5 Installation dimensions and filling
heights ........................................ 27
Fig. 6 Lubricating points ............................ 28
List of tables
Tab. 1 Other application documents, purpose and
where found .................................. 4
Tab. 2 Warnings and symbols ....................... 5
Tab.3 Measurestobetakenifthepumpisshut
down .......................................... 15
Tab. 4 Measures depending on the behavior of the
pumped liquid ................................ 15
Tab. 5 Measures to be taken after prolonged
shutdown periods ............................ 16
Tab. 6 Fault/number assignment ................... 21
Tab. 7 Troubleshooting list .......................... 22
Tab. 8 Designation of components according to part
numbers ...................................... 23
Tab. 9 Ambient conditions ........................... 26
Tab. 10 Flange tightening torques ................... 26
Tab. 11 Sole plate tightening torques ................ 26
Tab. 12 Tightening torques of casing screws ... . . ... 26
Tab. 13 Installation dimensions (minimum
dimensions) ................................... 27
Tab. 14 Maintenance plan ............................ 27
Tab. 15 Lubricant ...................................... 28
Tab. 16 Lubricant quantities .......................... 28
300 106 BA-2015.09.17 ETL 3

About this document
1 About this document
This manual
• Is part of the equipment
• Applies to the aforementioned pump series
• Describes safe and appropriate operation during all oper-
ating phases
1.1 Target groups
Operating company
• Responsibilities:
– Always keep this manual accessible where the device
is used on the system.
– Ensure that employees read and observe this docu-
ment, particularly the safety instructions and warnings,
and the documents which also apply.
– Observe any additional country-specific rules and reg-
ulations that relate to the system.
Qualified personnel, fitter
• Mechanics qualification:
–Qualified employees with additional training for fitting
the respective pipework.
• Electrical qualification:
–Qualified electrician
• Transport qualification:
–Qualified transport specialist
• Responsibility:
– Read, observe and follow this manual and the other
applicable documents, especially all safety instructions
and warnings.
1.2 Other applicable documents
Document/purpose/ where found
Installation drawing
• Dimensions when installed, fitting
dimensions, etc.
Documentation
included
Resistance lists
• Resistance of materials used to
chemicals
• www.asv-stuebbe.de/
pdf_resistance/300051.pdf
CE declaration of conformity
• Conformity with standards
(→9.5 Declarat-
ion of conformity
in accordance
with EC machin-
ery directive,
Page 29).
Data sheet (340 056)
• Technical specifications, operating
conditions, dimensions
• www.asv-stuebbe.de/
pdf_datasheets/340056.pdf
Spare parts list
• Ordering spare parts
Documentation
included
Sectional drawing
• Sectional drawing, part numbers,
component designations
Documentation
included
Supplier documentation
• Technical documentation for parts
supplied by subcontractors
Documentation
included
Tab. 1 Other application documents, purpose
and where found
4 ETL BA-2015.09.17 300 106

About this document
1.3 Warnings and symbols
Symbol Meaning
• Immediate acute risk
• Death, serious bodily harm
• Potentially acute risk
• Death, serious bodily harm
• Potentially hazardous situation
• Minor injury
• Potentially hazardous situation
• Material damage
Safety warning sign
Take note of all information
highlighted by the safety warning
sign and follow the instructions to
avoid injury or death.
Instruction
1. , 2. , … Multiple-step instructions
Precondition
→Cross-reference
Information, advice
Tab. 2 Warnings and symbols
300 106 BA-2015.09.17 ETL 5

Safety
2 Safety
The manufacturer does not accept any liability for any dam-
age caused by disregarding any sections of the entire doc-
umentation.
2.1 Intended use
• Only use the pump with suitable media (→resistance lists).
• Do not use pump with solid particles or abrasive fluids.
• Do not use pump with combustible or explosive fluids.
• Adhere to the operating limits and size-dependent mini-
mum flow rates.
• Avoid dry running:
Initial damage, such as destruction of bearings, seals and
plastic parts, will occur within a few seconds.
– Make sure the pump is only operated with, and never
without, pumped liquid.
• Avoid cavitation:
– Open suction-side fitting fully and do not use to regulate
flow.
– Do not open the pressure-side fitting beyond the
agreed operating point.
• Avoid overheating:
– Do not operate the pump while the pressure-side fitting
is closed.
–Noteminimumflow (→Data sheet).
• Avoid damage to the motor:
– Do not open the pressure-side fitting beyond the
agreed operating point.
– Note the maximum permissible number of times the
motor can be switched on per hour (→manufacturer's
specifications).
• Consult the manufacturer about any other use of the pump.
• If pumps are delivered without motors, then final assembly
as a pump assembly must take place in accordance with
the provisions of machinery directive 2006/42/EC.
Prevention of obvious misuse (examples)
• Observe pump limits of use regarding temperature, pres-
sure, flow and speed (→Data sheet).
• The power consumption of the pump increases as the the
specific gravity of the pumped fluid increases. Adhere to
the permissible specific gravity in order to eliminate the
possibility that the pump, coupling and motor are over-
loaded (→Data sheet).
A lower specific gravity is permissible. Adapt the auxiliary
systems accordingly.
• When conveying fluids containing solids, observe the limit
values for proportions of solid particles and particle size
(→Data sheet, technical description).
•Whenusinga
uxiliary plant systems:
– Ensure compatibility of the operating medium with the
product medium.
– Ensure constant supply of the relevant operating
medium.
• Pumps used with water as the pumped liquid must not be
used for foodstuffs or drinking water. Use with food or
drinking water must be specified in the data sheet.
• Type of installation should only be selected in accordance
with these operating instructions. For example, the follow-
ing are not allowed:
– Hanging base plate pumps in the pipe
– Overhead installation
– Installation in the immediate vicinity of extreme heat or
cold sources
– Installation too close to the wall
2.2 General safety instructions
Observe of the following regulations before carrying out
any work.
2.2.1 Product safety
The pump has been built according to state-of-the-art technol-
ogy and the recognized technical safety regulations. Never-
theless, operation of the pump can still put the life and health
of the user or third parties at risk or damage the pump or other
property.
• Only operate the pump if it is in perfect technical condition
and only use it as intended, staying aware of safety and
risks, and in adherence to the instructions in this manual.
• Keep this manual and all other applicable documents com-
plete, legible and accessible to personnel at all times.
• Refrain from any procedures and actions that would pose
a risk to personnel or third parties.
• In the event of any safety-relevant faults, shut down the
pump immediately and have the fault corrected by appro-
priate personnel.
• In addition to the entire documentation for the product,
comply with statutory or other safety and accident-preven-
tion regulations and the applicable standards and guide-
lines in the country where the pump is operated.
6 ETL BA-2015.09.17 300 106

Safety
2.2.2 Operator's obligations
Safety-conscious operation
• Only operate the pump if it is in perfect technical condition
and only use it as intended, staying aware of safety and
risks, and in adherence to the instructions in this manual.
• Ensure that the following safety aspects are observed and
monitored:
– Adherence to intended use
– Statutory or other safety and accident-prevention reg-
ulations
– Safety regulations governing the handling of haz-
ardous substances
– Applicable standards and guidelines in the country
where the pump is operated
– Applicable guidelines of the operator
• Make personal protective equipment available.
Qualified personnel
• Make sure all personnel tasked with work on the pump
have read and understood this manual and all other appli-
cable documents, especially the safety, maintenance and
repair information, before they start any work.
• Organize responsibilities, areas of competence and the
supervision of personnel.
• Ensure that all work is carried out by specialist technicians
only:
– Fitting, repair and maintenance work
– Transportation
– Work on the electrical system
• Make sure that trainee personnel only work on the pump
under supervision of specialist technicians.
Safety equipment
• Provide the following safety equipment and verify its func-
tionality:
– For hot, cold and moving parts: pump safety guarding
provided by the customer
– For pumps without capability to run dry: Dry run pro-
tection
– For potential electrostatic charging: provide suitable
grounding
Warranty
• Obtain the manufacturer's approval prior to carrying out
any modifications, repairs or alterations during the warranty
period.
• Only use genuine parts or parts that have been approved
by the manufacturer.
2.2.3 Obligations of personnel
• All directions given on the pump must be followed (and kept
legible), e.g. the arrow indicating the sense of rotation and
the markings for fluid connections.
• Pump, coupling guard and components:
– Do not step on them or use as a climbing aid
– Do not use them to support boards, ramps or beams
– Donotusethemasafixing point for winches or sup-
ports
– Do not use them for storing paper or similar materials
– Do not use hot pump or motor components as a heating
point
– Do not de-ice using gas burners or similar tools
• Do not remove the safety guarding for hot, cold or moving
parts during operation.
• Use personal protective equipment if necessary.
• Only carry out work on the pump while it is not running.
• Before all installation and maintenance work, discon-
nect the motor from the mains and secure against being
switched back on again.
• Never reach into the suction or discharge flange.
• Following all work on the pump, refit safety devices in
accordance with the instructions and bring into service.
2.3 Specifichazards
2.3.1 Hazardous pumped liquids
• When handling hazardous fluids, observe the safety regu-
lations for the handling of hazardous substances.
• Use personal protective equipment when carrying out any
work on the pump.
• Collect leaking pumped liquid and residues in a safe man-
ner and dispose of in accordance with environmental reg-
ulations.
300 106 BA-2015.09.17 ETL 7

Layout and function
3 Layout and function
3.1 Labels
3.1.1 Type plate
ASV Stübbe GmbH & Co. KG
Tel.: [phone] / 79 9-0
Typ
Fabr. Nr.
Werkst.
L ø
Qm3/h Hm
GLRD
1
2
3
4
5
6
7
8
Fig. 1 Type plate (example)
1Pumptype
2 Serial number
3 Housing / sealing material
4–
5 Differential head
6 Shaft seal information
7Flow
8 Impeller diameter [mm]
3.2 Description
Non self-priming, vertical centrifugal pump
Useinopenorclosedpressureless containers or pits/trenches.
Thepumpisdry-runningsafe.
3.3 Layout
2
1
3
4
5
6
8
7
9
10
11
12
13
Fig. 2 Layout
1 V-ring seal
2 Discharge flange
3 Volute casing
4 Strainer (optional)
5Suctioncup
6Impeller
7Protectiontube
8Shaft
9 Immersion tube
10 Sole plate
11 Shaft bearing
12 Coupling
13 Motor
8 ETL BA-2015.09.17 300 106

Transport, storage and disposal
4 Transport, storage and disposal
4.1 Transport
Weight specifications (→documents for the particular
order).
4.1.1 Unpacking and inspection upon delivery
1. Unpack the pump/pump assembly upon delivery and
inspect it for transport damage.
2. Check completeness and accuracy of delivery.
3. Report any transport damage to the manufacturer immedi-
ately.
4. Dispose of packaging material according to local regula-
tions.
Retain transport frame for horizontal storage (recom-
mended)
4.1.2 Lifting
DANGER
Death or limbs crushed as a result transported items
falling over.
Use lifting gear appropriate for the total weight to be trans-
ported.
Attach lifting gear in accordance with the following dia-
grams.
Never attach the lifting gear to the lifting eye of the motor
(other than for securing against knocking over for pump
assemblies with a high center of gravity).
Do not stand under suspended loads.
1. Attach lifting gear in accordance with the following diagram.
2. Lift pump/pump assembly appropriately.
300 106 BA-2015.09.17 ETL 9

Transport, storage and disposal
4.2 Storage
DANGER
Death or limbs crushed as a result of the pump overturn-
ing.
For vertical storage:
– Place pump on a horizontal underground and secure
against overturning.
NOTE
Material damage due to inappropriate storage!
Store the pump properly.
1. Seal all openings with blind flanges, blind plugs or plastic
covers.
2. Make sure the storage room meets the following condi-
tions:
–Dry
– Frost-free
– Vibration-free
–UVprotected
3. For horizontal storage
– Protect pump against sagging by means of proper sup-
port.
4. Turn the pump twice a month.
5. Make sure the shaft and bearing change their rotational
position in the process.
4.3 Disposal
Plastic parts can be contaminated by poisonous or radioac-
tive pumped liquids to such an extent that cleaning will be
insufficient.
WARNING
Risk of poisoning and environmental damage by the
pumped liquid or oil!
Use personal protective equipment when carrying out any
work on the pump.
Prior to the disposal of the pump:
– Collect and dispose of any escaping pumped liquid or
oil in accordance with local regulations.
– Neutralize residues of pumped liquid in the pump.
Remove the plastic parts and dispose of them in accor-
dance with local regulations.
Dispose of the pump in accordance with local regulations.
10 ETL BA-2015.09.17 300 106

Setup and connection
5 Setup and connection
NOTE
Material damage due to distortion or passage of electrical
current in the bearing!
Do not make any structural modifications to the pump
assembly or pump casing.
Do not carry out any welding work on the pump assembly
or pump casing.
NOTE
Material damage caused by dirt!
Do not remove the transport seals until immediately before
setting up the pump.
Do not remove any covers or transport and sealing covers
until immediately before connecting the pipes to the pump.
5.1 Preparing the setup
5.1.1 Check operating conditions
1. Ensure the required operating conditions are met:
– Resistance of body and seal material to the medium
(→resistance lists).
– Required ambient conditions
(→9.2.1 Ambient conditions, Page 26).
2. Ensure necessary dimensions for tank cut-out (→Data
sheet).
3. Ensure safe aeration and venting of the container in all
operating phases.
4. Ensure required installation dimensions and filling lev-
els (→9.2.6 Installation dimensions and filling heights,
Page 27).
– Minimum distances
–Maximumfilling height
–Minimumfilling height
5.1.2 Preparing the installation site
Ensure the installation site meets the following conditions:
– Pump is freely accessible from all sides
–Sufficient space for the installation/removal of the pipes
and for maintenance and repair work, especially for the
removal and installation of the pump and the motor
– Pump not exposed to external vibrations (damage to
bearings)
– Frost protection
5.1.3 Surface preparation
Aids, tools, materials:
– Spirit level
1. Make sure the surface meets the following conditions:
– Level and horizontal
– Clean (no oil, dust or other impurities)
– Capable of bearing the weight of the pump assembly
and all operating forces
– Stability of the pump ensured
– Resonance-free
2. Clean containers, basins or pits carefully and protect from
further contamination, e.g. by installing overflow wall in
front of the container or pit inlet.
5.2 Setting up
1. Remove the suction-side cover if present.
2. Lift pump/pump assembly (→4.1 Transport, Page 9 ).
3. Place pump/pump assembly on the contact surface of the
container/pit.
4. Attach sole plate to the contact surface.
– Pump must not be mechanically under tension as a
result of being attached
5. Screw on the sole plate (→9.2.4 Sole plate tightening
torques, Page 26).
300 106 BA-2015.09.17 ETL 11

Setup and connection
5.3 Planning the pipes
Water hammers may damage the pump or the system.
Plan the pipes and fittings as far as possible to prevent
water hammers occurring.
5.3.1 Specifying supports and flange connections
NOTE
Material damage due to excessive forces and torques on
the pump.
Ensure pipes are connected not under tension.
1. Support pipes in front of the pump.
2. Ensure the pipe supports have permanent low-friction
properties and do not seize up due to corrosion.
5.3.2 Specifying nominal widths
Keep the flow resistance in the pipes as low as possible.
1. Make sure the suction extension is not smaller than the
nominal width of the suction branch.
2. Make sure the nominal pressure line width is not smaller
than the nominal discharge flange width.
– Ensure flow velocity is less than 3 m/s.
5.3.3 Optimizing changes of cross section and
direction
1. Avoid radii of curvature of less than 1.5 times the nominal
pipe diameter.
2. Avoid abrupt changes of cross-section along the piping.
5.3.4 Providing safety and control devices
(recommended)
Avoid reverse running
1. Ensure that the medium does not flow back after switch-
ing off the pump by using a non-return valve between dis-
charge flange and stop valve.
2. In order to enable venting, include vent connection
between discharge flanges and non-return valve.
Make provisions for isolating and shutting off the pipes
For maintenance and repair work.
Provide shut-off devices in the pressure pipe.
Allow measurements of the operating conditions
1. Provide pressure gauge in pressure line for pressure mea-
surement.
2. Provide pressure measurement on the pump side.
5.4 Connecting the pipes
NOTE
Material damage due to excessive forces and torques on
the pump.
Ensure pipe connection without tension.
5.4.1 Keeping the piping clean
NOTE
Material damage due to impurities in the pump!
Make sure no impurities can enter the pump.
1. Clean all piping parts and fittings prior to assembly.
2. Flush all pipes carefully with neutral medium.
3. Ensure no flange seals protrude inwards.
4. Remove any blind flanges, plugs, protective foils and/or
protective paint from the flanges.
5.4.2 Installing the pressure pipe
1. Remove the transport and sealing covers from the pump.
2. Fit pressure line stress-free and sealed. (→9.2.3 Flange
tightening torques, Page 26).
3. Ensure no seals protrude inwards.
5.4.3 Inspection for stress-free pipe connections
Piping installed and cooled down
1. Disconnect the pipe connecting flanges from the pump.
2. Check whether the pipes can be moved freely in all direc-
tions within the expected range of expansion:
– Nominal width < 150 mm: by hand
– Nominal width > 150 mm: with a small lever
3. Make sure the flange surfaces are parallel.
4. Reconnect the pipe connecting flanges to the pump.
12 ETL BA-2015.09.17 300 106

Setup and connection
5.5 Electrical connection
DANGER
Risk of death due to electric shock!
All electrical work must be carried out by qualified electri-
cians only.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
5.5.1 Connecting the motor
Follow the instructions of the motor manufacturer.
1. Connect the motor according to the connection diagram.
2. Make sure no danger arises due to electric power.
3. Install an EMERGENCY STOP switch.
5.5.2 Check direction of rotation
DANGER
Danger to life from rotating parts
Use personal protective equipment when carrying out any
work on the pump.
Maintain an adequate distance from rotating parts.
1. Switch on motor for max. of 2 seconds and switch off again
immediately.
2. Check whether the sense of rotation of the motor matches
the direction of rotation on the fan.
3. If the sense of rotation is different: Change over the two
phases.
5.6 Performing the hydrostatic test
Only necessary if the entire system needs to be tested
under pressure.
NOTE
Material damage due to bursting of pump casing.
Testing pressure must not exceed the permissible pump
pressure (→order data sheet).
Make sure the testing pressure does not exceed the per-
missible pump pressure.
– If necessary, do not perform pressure test on the pump.
300 106 BA-2015.09.17 ETL 13

Operation
6Operation
6.1 Preparing for commissioning
6.1.1 Checking downtimes
Check downtimes (→Table 5 Measures to be taken after
prolonged shutdown periods, Page 16).
6.1.2 Filling and bleeding
WARNING
Risk of injury and poisoning due to hazardous fluid!
Use protective equipment for any work on the pump.
Collect leaking liquid safely and dispose of in accordance
with local regulations.
1. Close pressure-side fitting.
2. Fill pump and, if present, suction pipe with fluid.
Ensure minimum filling height when doing so (→Ta b l e
13 Installation dimensions (minimum dimensions),
Page 27).
3. Verify that no pipe connections are leaking.
6.2 Commissioning
6.2.1 Switching on
Pump set up and connected properly
Motor set up and connected properly
All connections stress-free and sealed
All safety equipment installed and tested for functionality
Pump prepared, filled and vented correctly
Container is filled sufficiently up to minimum height
“Z” (→9.2.6 Installation dimensions and filling heights,
Page 27).
DANGER
Risk of injury from running pump.
Do not touch the running pump.
Ensure that the coupling guard is attached.
Do not carry out any work on the running pump.
Allow the pump to cool down completely before starting any
work.
DANGER
Risk of injury and poisoning due to pumped liquid spray-
ing out!
Use personal protective equipment when carrying out any
work on the pump.
NOTE
Risk of cavitation if suction flow is restricted.
Open the suction-side fitting and do not use to regulate the
flow.
Do not open the pressure-side fitting beyond the operating
point.
NOTE
Material damage due to overheating.
Do not operate the pump for long periods with the pressure-
side fitting closed.
Observe minimum flow ( order data sheet).
1. Open the suction-side fitting.
2. Close pressure-side fitting
3. Switch on the motor and check it for smooth running.
4. Once the motor has reached its nominal speed, open
the pressure-side fitting slowly until the operating point is
reached.
5. Make sure temperature change is smaller than 5 K/min for
pumps with hot fluids.
6. After the initial stress due to the pressure and operating
temperature, check that the pump is not leaking.
6.2.2 Switching off
Pressure-side fitting closed (recommended)
WARNING
Risk of injury due to hot pump parts!
Use personal protective equipment when carrying out any
work on the pump.
1. Switch off motor.
2. Check all connecting bolts and tighten if necessary (only
after initial commissioning).
14 ETL BA-2015.09.17 300 106

Operation
6.3 Shutting down the pump
DANGER
Risk of injury from running pump
Do not touch the running pump.
Do not carry out any work on the running pump.
Before all installation and maintenance work, discon-
nect the motor from the mains and secure against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out by qualified electri-
cians only.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
WARNING
Risk of injury and poisoning due to hazardous fluid!
Use protective equipment for any work on the pump.
Collect leaking liquid safely and dispose of fitting in accor-
dance with local regulations.
Take the following measures whenever the pump is shut
down:
Pump is Action
shut down Take measures appropriate for
the fluid (→Table 4 Measures
depending on the behavior of
the pumped liquid, Page 15).
…emptied Close suction and pressure-side
fitting.
…dismounted Isolate the motor from its power
supply and secure it against
unauthorized switch-on.
…put into
storage
Note measures for storage.
Tab. 3 Measures to be taken if the pump is shut down
Duration of shutdown (depending
on process)
Behavior of the
pumped liquid
Short Long
Crystallized or
polymerized,
solids
sedimenting
Flush the
pump.
Flush the
pump.
Solidifying/
freezing,
non-corrosive
Heat up or
empty the
pump and
containers.
Empty the
pump and
containers.
Solidifying/
freezing,
corrosive
Heat up or
empty the
pump and
containers.
Empty the
pump and
containers.
Remains liquid,
non-corrosive
––
Remains liquid,
corrosive
–Empty the
pump and
containers.
Tab. 4 Measures depending on the behavior
of the pumped liquid
300 106 BA-2015.09.17 ETL 15

Operation
6.4 Restoring the pump to service
1. If the pump is shut down for over 1 year, take the following
measures before restoring it to service:
Shutdown period Action
>2years Replace elastomer seals
(O-rings, shaft sealing rings).
Tab. 5 Measures to be taken after prolonged
shutdown periods
2. Complete all steps as for commissioning
(→6.2 Commissioning, Page 14).
6.5 Operating the stand-by pump
Stand-by pump filled and bled
Operate the stand-by pump at least once a week.
Open pressure-side fitting far enough so that the stand-by
pump operating temperature is achieved and heating is
even (→6.2.1 Switching on, Page 14).
16 ETL BA-2015.09.17 300 106

Maintenance
7 Maintenance
Trained service technicians are available for fitting and
repair work. Submit evidence of conveyed medium on
request (DIN safety data sheet or safety certificate).
7.1 Inspections
The inspection intervals depend on the operational strain
on the pump.
DANGER
Risk of injury due to running pump!
Do not touch the running pump.
Do not carry out any work on the running pump.
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Use protective equipment for any work on the pump.
1. Check at appropriate intervals:
– Adherence to the minimum flow rate
– Normal operating conditions unchanged
– Filling level of the container
2. For trouble-free operation, always ensure the following:
–Noleaks
– No cavitation
– Free and clean filters
– No unusual running noises or vibrations
– No inadmissible leaks on the shaft seal
7.2 Maintenance
Operating life of antifriction bearings in operation are within
permissible range: >2 years.
Intermittent operation, high temperatures, low viscosities
and aggressive ambient and process conditions reduce the
service life of antifriction bearings.
Plain bearings are subject to natural wear and tear which
is heavily dependent on the respective operating condi-
tions. It is therefore not possible to make general state-
ments about the operating life.
DANGER
Risk of injury from running pump
Do not touch the running pump.
Do not carry out any work on the running pump.
Before all installation and maintenance work, discon-
nect the motor from the mains and secure against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out by qualified electri-
cians only.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
DANGER
Danger to life from rotating parts
Ensure coupling guard is fitted after work on the pump.
WARNING
Risk of injury and poisoning due to hazardous or hot fluid.
Use protective equipment for any work on the pump.
Allow the pump to cool down completely before commenc-
ing any work.
Make sure the pump is unpressurized.
Empty the pump, safely collect the pumped liquid and
dispose of it in accordance with environmental rules and
requirements.
7.2.1 Maintenance in accordance with main-
tenance schedule
Perform maintenance work in accordance with the mainte-
nance schedule (→9.3 Maintenance plan, Page 27).
300 106 BA-2015.09.17 ETL 17

Maintenance
7.2.2 Cleaning the pump
NOTE
High water pressure or spray water can damage bearings!
Do not clean bearing areas with a water or steam jet.
Clean large-scale grime from the pump.
7.3 Dismounting
DANGER
Risk of injury due to running pump!
Do not touch the running pump.
Do not carry out any work on the running pump.
Before all installation and maintenance work, discon-
nect the motor from the mains and secure against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out by qualified electri-
cians only.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
DANGER
Death or limbs crushed as a result of the pump overturn-
ing.
Place pump on a horizontal underground and secure
against overturning.
WARNING
Risk of injury and poisoning due to hazardous or hot fluid.
Use protective equipment for any work on the pump.
Allow the pump to cool down completely before commenc-
ing any work.
Make sure the pump is unpressurized.
Empty the pump, safely collect the pumped liquid and
dispose of it in accordance with environmental rules and
requirements.
WARNING
Risk of injury due to heavy components!
Pay attention to the component weight. Lift and transport
heavy components using suitable lifting gear.
Set down components safely and secure them against
overturning or rolling away.
WARNING
Risk of injury during disassembly!
Secure the pressure-side gate valve against accidental
opening.
Depressurize the blocking pressure system, if available.
Wear protective gloves, components can be very sharp-
edged due to wear or damage.
Remove spring-loaded components carefully (e.g.
mechanical seal, tensioned bearing, valves etc.), as com-
ponents can be ejected by the spring tension.
Observe the manufacturer's specifications (e.g. for the
motor, coupling, mechanical seal, blocking pressure sys-
tem, cardan shaft, drives, belt drive etc.).
NOTE
Material damage due to incorrect dismounting/installation
of the pump.
Only specialist mechanics should complete dismounting/
installation work.
7.3.1 Preparations for dismounting
Pump is depressurised
Pump completely empty, flushed and decontaminated
Electrical connections disconnected and motor secured
against switch-on
Pump cooled down
Manometer lines, manometer and fixtures dismounted
When dismounting, observe the following:
– Mark the precise orientation and position of all compo-
nents before dismounting them.
– Dismount components concentrically without canting.
– Dismount pump (→sectional drawing).
7.3.2 Dismounting hydraulic system
1. Undo the pressure pipe screw connection between spiral
casing and sole plate.
2. Screw out the hexagon screws or stud bolts (901.2 or
902.1) from the spiral casing (102).
3. Pull the spiral casing (102) to the bottom.
– Donottiltthespiralcasing
– Do not damage the centering and impeller
4. Remove the impeller cap (260) including O-ring (412.4).
5. Screw out the hexagon nut (920.1), remove spring ring
(934.0) and disc (550).
6. Screw out the impeller (230) from the shaft (211).
7. Remove the key (940.2) and O-ring (412.3).
7.3.3 Dismounting coupling and intermediate ring
1. Screw out screws on the motor flange, remove motor (801)
and motor-side coupling half (840.1).
2. Screw out screws (901.3) and remove motor bell housing
(341).
3. Remove intermediate ring.
4. Undo stud bolt (840.2) and remove pump-side coupling
half.
18 ETL BA-2015.09.17 300 106

Maintenance
7.3.4 Dismounting V-rings
1. Screw out nuts (920.4) and screws (554.3) and remove
motor (801).
2. Dismounting hydraulic system (→7.3.2 Dismounting
hydraulic system, Page 18).
3. Remove the housing cover (161).
4. Remove shaft protection tube (714).
5. Screw out fastening screws (901.7).
6. Remove the suspension pipe (713) including reinforcement
plate (893.2) from the drive assembly group.
7. Remove intermediate ring (509) and V-ring.
8. Remove sealing washer (444).
9. Pull off the sealing flange (490) from the bearing bracket
mounting (330).
10. Remove V-ring in the bearing cover (360.2).
7.3.5 Dismounting shaft bearing
1. Remove V-rings step 1 to 9 (→7.3.4 Dismounting V-rings,
Page 19).
2. Press out the spring dowel sleeves (531) in the shaft sleeve
area (523.1).
3. Remove the shaft sleeve (523.1) from the shaft.
4. Screw out socket head cap screws (914.4).
5. Remove bearing cover (360.2).
6. Bend the stem of the securing plate (931.1) to one side and
undo the shaft nut (921.1).
7. Press the shaft assembly group (211) including distance
sleeve (525) and the shaft bearing (321.1) out of the bear-
ing support towards the hydraulics side.
8. Screw out headless setscrews (904.1).
9. Remove the sleeve (525) from the shaft.
10. Press out shaft bearing (321.1) and labyrinth disc (555).
11. Remove the circlip (932.2) from the bearing support.
12. Press the bearing (321.1) including the top labyrinth disk
(555) out of the bearing support (330).
7.4 Replacement parts and return
1. Have the following information ready to hand when order-
ing spare parts
–Devicetype
– ID number
– Nominal pressure and diameter
– Connection and gasket material
2. Please complete and enclose the document of compliance
for returns
(→www.asv-stuebbe.de/pdf_DOC/300359.pdf).
300 106 BA-2015.09.17 ETL 19

Maintenance
7.5 Installing
Install components concentrically and without tilting in
accordance with the markings applied.
WARNING
Risk of injury due to heavy components
Pay attention to the component weight. Lift and transport
heavy components using suitable lifting gear.
Set down components safely and secure them against
overturning or rolling away.
WARNING
Risk of injury during assembly!
Install spring-loaded components carefully (e.g. mechan-
ical seal, tensioned bearing, valves etc.), as components
can be ejected by the spring tension.
Observe the manufacturer's specifications (e.g. for the
motor, coupling, mechanical seal, blocking pressure sys-
tem, cardan shaft, drives, belt drive etc.).
NOTE
Material damage due to incorrect dismounting/installation
of the pump.
Only specialist mechanics should complete dismounting/
installation work.
NOTE
Material damage due to unsuitable components!
Always replace lost or damaged screws with screws of the
same strength where required.
Only replace seals with seals of the same material.
NOTE
Material damage, fragile components
Install ceramic parts of the plain bearing and magnets of
the magnetic coupling with care, do not hit or knock.
1. When installing please observe:
– Replace worn parts with genuine spare parts.
– Replace seals, inserting them in such a way that they
are unable to rotate.
– Do not apply synthetic or mineral oil, grease or cleaning
agents to elastomer components.
– Adhere to the prescribed tightening torques
(→9.2.5 Tightening torques of casing screws,
Page 26).
2. Installing the pump:
–in reverse order to the dismounting
(→7.3 Dismounting, Page 18).
–→sectional drawing
3. Installing the pump in the system (→5 Setup and connec-
tion, Page 11).
20 ETL BA-2015.09.17 300 106