SCHMITT T Series Installation instructions

Series T and TE
immersion pumps
Original operating manual
Version
Print-No. 11336/0420
SCHMITT-Kreiselpumpen GmbH & Co. KG
Einsteinstraße 33
76275 Ettlingen
Germany
Phone: + 49 (0) 7243 / 54 53 - 0
Fax: + 49 (0) 7243 / 54 53 - 22
E-Mail: [email protected]
Internet: www.schmitt-pumpen.de
Subject to technical modifications.
Read carefully before use.
Save for future use.

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 General safety instructions ....................... 6
2.1 Intended use .................................. 6
2.2 General safety instructions .................. 6
2.2.1 Product safety ................................ 6
2.2.2 Obligations of the operating company .... . . 6
2.2.3 Obligations of personnel ..................... 7
2.3 Specific hazards .............................. 7
2.3.1 Hazardous pumped liquids .................. 7
2.3.2 Potentially explosive atmospheres ...... .. . . 7
3 Layout and Function ............................... 8
3.1 Marking ....................................... 8
3.1.1 Name plate ................................... 8
3.1.2 ATEX type plate .............................. 8
3.2 Description .................................... 8
3.3 Assembly ..................................... 9
4 Transport, Storage and Disposal ................. 10
4.1 Transport ...................................... 10
4.1.1 Unpacking and inspection on delivery . . . . .. 10
4.1.2 Lifting .......................................... 10
4.2 Storage ....................................... 10
4.3 Disposal ....................................... 10
5 Installation and connection ....................... 11
5.1 Preparing for installation ..................... 11
5.1.1 Check operating conditions ................. 11
5.1.2 Preparing the installation site ............... 11
5.1.3 Preparing the support surface ............... 11
5.2 Setting up ..................................... 11
5.3 Planning pipelines ............................ 11
5.3.1 Designing pipelines .......................... 11
5.3.2 Arranging the supports and connec-
tions ........................................... 11
5.3.3 Specifying nominal widths ................... 12
5.3.4 Optimizing changes of cross section and
direction ....................................... 12
5.3.5 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 ......................... 12
5.5.1 Connecting the motor ........................ 12
5.5.2 Check direction of rotation ................... 12
6Operation ............................................ 13
6.1 Preparing for commissioning ................ 13
6.1.1 Check downtimes ............................ 13
6.1.2 Filling and bleeding .......................... 13
6.2 Commissioning ............................... 13
6.2.1 Switching on .................................. 13
6.2.2 Switching off .................................. 13
6.3 Shutting down the pump ..................... 14
6.4 Restoring the pump to service .............. 14
6.5 Operating the stand-by pump ............... 14
7 Maintenance ......................................... 15
7.1 Inspections ................................... 15
7.2 Servicing ...................................... 15
7.2.1 Maintenance in accordance with maintenance
schedule ...................................... 15
7.2.2 Cleaning the pump ........................... 15
7.3 Dismounting .................................. 16
7.3.1 Preparations for dismounting ................ 16
7.3.2 Dismount the pump .......................... 16
7.4 Replacement parts and return .............. 17
7.5 Installing ...................................... 17
7.5.1 Preparations for installation ................. 17
7.5.2 Installing the pump ........................... 17
7.5.3 Install the pump into the system . . . . . . . . . . . . 18
8 Troubleshooting .................................... 19
9 Appendix ............................................. 22
9.1 Replacement parts ........................... 22
9.1.1 Part numbers and designations . . . . . . ... . . . . 22
9.1.2 Drawings ...................................... 23
9.2 Technical specifications ...................... 25
9.2.1 Ambient conditions ........................... 25
9.2.2 Total pressure ................................ 25
9.2.3 Shaft installation dimensions ................ 25
9.2.4 Support flange installation dimensions ... . . 26
9.2.5 Tank fill levels and minimum distance ...... 26
9.2.6 Tightening torques of casing screws .... . . . . 26
9.2.7 Flow rate ...................................... 27
9.2.8 Cleaning agents .............................. 27
9.3 Maintenance schedule ....................... 28
9.4 Declaration of conformity in accordance with
EC machinery directive ...................... 29
2T/TE 11336/0420

Table of contents
List of figures
Fig. 1 Name plate (example) ....................... 8
Fig. 2 ATEX type plate (example) .................. 8
Fig. 3 T/TE layout ................................... 9
Fig. 4 Attach the lifting gear to the immersion pump
(illustration of general principle) . . . . . . . . ..... 10
Fig. 5 Sectional drawing ............................ 23
Fig. 6 Exploded drawing ............................ 24
Fig. 7 Shaft installation dimensions ................ 25
Fig. 8 Support flange installation dimensions ..... 26
Fig. 9 Tank fill levels and minimum distance . . . . . . 26
List of tables
Tab. 1 Other application documents, purpose and
where found .................................. 4
Tab. 2 Warning signs and consequences if
disregarded ................................... 5
Tab. 3 Symbols and their meaning ................. 5
Tab.4 Measurestobetakenifthepumpisshut
down .......................................... 14
Tab. 5 Measures depending on the behavior of the
pumped liquid ................................ 14
Tab. 6 Fault/number assignment ................... 19
Tab. 7 Troubleshooting list .......................... 21
Tab. 8 Designation of components according to part
numbers ...................................... 22
Tab. 9 Ambient conditions ........................... 25
Tab. 10 Shaft installation dimensions ............... 25
Tab. 11 Support flange installation dimensions .. . . . 26
Tab. 12 Tank fill levels and minimum distance . . . . . . 26
Tab. 13 Tightening torques of casing screws . . . . . ... 26
Tab. 14 Flow rate ...................................... 27
Tab. 15 Maintenance schedule ....................... 28
11336/0420 T/TE 3

About this document
1 About this document
This manual:
• is an integral part of the pump
• applies to all series referred to
• describes safe and proper operation during all operating
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
therespectivepipework
• 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
The following documents are available
online:
• ATEX additional instructions
• Resistance lists
– Resistance of materials used
to chemicals
• Data sheet
– Technical specifications,
operating conditions,
dimensions
•www.schmitt-pumpen.de/de/
support/downloads.html
Spare parts list
• Ordering spare parts
Sectional drawing
• Sectional drawing, part numbers,
component designations
Documentation for the drive
• Technical documentation for drives
Documentation
included
Declaration of conformity
• Conformity with standards
•(→9.4 Declaration of conformity in accordance with
EC machinery directive, Page 29).
Tab. 1 Other application documents, purpose
and where found
4T/TE 11336/0420

About this document
1.3 Warnings and symbols
Warning sign Level of risk Consequences if disregarded
DANGER immediate acute risk Death, serious bodily harm
potentially acute risk Death, serious bodily harm
CAUTION potentially hazardous situation Minor injury
NOTE potentially hazardous situation Material damage
Tab. 2 Warning signs and consequences if disregarded
Symbol Meaning
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, notes
Tab. 3 Symbols and their meaning
11336/0420 T/TE 5

General safety instructions
2 General safety instructions
The manufacturer accepts no liability for damages caused
by disregarding any of the documentation.
2.1 Intended use
• Only use the pump with suitable media. Pump parts in con-
tact with media must be resistant to the media. (→Order
specification).
• Use the pump for flammable or explosive media only if it
is intended for use in potentially explosive atmospheres
(→ATEX additional instructions).
• Adhere to the operating limits and size-dependent mini-
mum flow rates.
• Avoid cavitation: 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.
– Note minimum flow (→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 with the manufacturer regarding any other use of
the device.
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 spe-
cific gravity of the pumped fluid increases. Adhere to the
permissible specific gravity in order to eliminate the possi-
bility that the pump and motor become overloaded (→data
sheet).
A lower specific gravity is permissible. Adapt the auxiliary
systems accordingly.
• Do not convey any liquids containing solids.
• The type of installation should be selected only in accor-
dance with these operating instructions. For example, the
following are not allowed:
– Installation in the immediate vicinity of extreme heat or
cold sources
– Installation too close to a wall
– horizontal installation
2.2 General safety instructions
Observe 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.
• Operate the pump only if it is in perfect technical condition
and use it only 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.
2.2.2 Obligations of the operating company
Safety-conscious working
• Operate the pump only if it is in perfect technical condition
and use it only 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:
– 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.
6T/TE 11336/0420

General safety instructions
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:
– Installation, 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 function-
ality:
• For hot, cold and moving parts: pump safety guarding pro-
vided by the customer
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 and components:
– Do not step on them or use as a climbing aid
– Do not use them to support boards, ramps or beams
– Do not use them as a fixing point for winches or sup-
ports
– Do not use them for storing paper or similar materials
• 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, disconnect
the motor from the mains and secure it 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.
• Do not make any modifications to the device.
2.3 Specific hazards
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 damage them in accordance with environmental
regulations.
2.3.2 Potentially explosive atmospheres
Observe ATEX additional manual
• Additional instructions for use in explosive atmospheres
•(→www.schmitt-pumpen.de/de/support/downloads.html)
11336/0420 T/TE 7

Layout and Function
3 Layout and Function
3.1 Marking
3.1.1 Name plate
D-76275 Elingen, Germany
www.schmi-pumpen.de Tel.: [phone]
Arkel / Ref. No.: 01215111
Typ / Type: T 130 PVDF ET 200
Baujahr / Mfg date: 12/2015
SCHMITT - Kreiselpumpen
1
2
3
45 6 7
Fig. 1 Name plate (example)
1 Article numbers
2Type
3 Year of manufacture (month/year)
4 Pump series
5Size
6 Pump material
7 Immersion depth
3.1.2 ATEX type plate
D-76275 Elingen, Germany
www.schmi-pumpen.de Tel.: [phone]
Arkel / Ref. No.: 01215111
Typ / Type: T 130 PVDF ET 200
Baujahr / Mfg date: 12/2015
SCHMITT - Kreiselpumpen
II 3G Ex h IIB T3
1
Fig. 2 ATEX type plate (example)
1 Explosion protection label
3.2 Description
Non-self-priming immersion pumps in modular construction:
• Sealless
• Safetorundry
• Vertical installation in open or closed, but depressurized
tanks, pits or vessels
• Direction of conveying:
– Suction flange, vertical
– Discharge flange, vertical
• Optional accessory parts on request:
–Strainer
– Suction line extension
8T/TE 11336/0420

Layout and Function
3.3 Assembly
1
2
3
4
5
6
8
7
Fig. 3 T/TE layout
1 Motor
2 Terminal box
3 Flange extension
4 Support pipe
5Housing
6 Suction branch
7Riser
8 Discharge flange
11336/0420 T/TE 9

Transport, Storage and Disposal
4 Transport, Storage and
Disposal
4.1 Transport
The user/owner is responsible for the transport of the
pump.
Weight specification (→Data sheet)
4.1.1 Unpacking and inspection on delivery
1. Unpack the pump/machine drive on delivery, and inspect it
for transport damage.
2. Check completeness and accuracy of delivery.
3. Ensure that the information on the name plate agrees with
the order/design data.
4. Report any transportation damage to the manufacturer
immediately.
5. Dispose of packaging material according to local regula-
tions.
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 diagram.
Do not stand under suspended loads.
Fig. 4 Attach the lifting gear to the immersion pump
(illustration of general principle)
1. Attach lifting gear in accordance with the above diagram.
2. Lift the immersion pump appropriately.
4.2 Storage
DANGER
Risk of death or crushed limbs due to pump tipping over!
If stored vertically: Place the pump on a horizontal surface
and secure it so it does not tip over.
NOTE
Material damage due to inappropriate storage!
Store the pump properly.
1. Seal all openings with blind plugs or plastic covers.
2. Make sure the storage room meets the following condi-
tions:
–Dry
– Frost-free
– Vibration-free
–UVprotected
3. If stored horizontally: Secure the pump using proper sup-
ports to prevent it from sagging.
4. Rotate the pump shaft twice a month.
5. Make sure the shaft changes its 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!
Use personal protective equipment when carrying out any
work on the pump.
Prior to the disposal of the pump:
– Collect and damage any escaping pumped liquid in
accordance with local regulations.
– Neutralize residues of pumped liquid in the pump.
Remove plastic parts and damage them in accordance with
local regulations.
Dispose of the pump in accordance with local regulations.
10 T / TE 11336/0420

Installation and connection
5 Installation and connection
For pumps in potentially explosive atmospheres (→ATEX
additional manual).
NOTE
Material damage caused by dirt!
Do not remove the transport seals until immediately before
installing the pump.
Do not remove any covers or transport and sealing covers
until immediately before connecting the pipes to the pump.
5.1 Preparing for installation
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 25).
2. Ensure the required dimensions for the tank section
(→9.2.4 Support flange installation dimensions, Page 26).
3. Ensure reliable air supply/ventilation during all operating
phases.
4. Ensure required fill levels and minimum distance
(→9.2.5 Tank fill levels and minimum distance, Page 26).
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
– Pump not exposed to external vibration
– Pump not exposed to external corrosive influences
– Frost protection
5.1.3 Preparing the support surface
Aids, tools, materials:
– Spirit level
1. Ensure that the support surface meets the following condi-
tions:
– Level and horizontal
– Clean (no oil, dust or other impurities)
– Capable of bearing the weight of the machine drive and
all operating forces
– Ensures the stability of the machine drive
– Resonance-free
2. Clean the tanks, pits or vessels thoroughly and protect
them against further contamination e.g. by installing over-
flow walls upstream of the tank or vessel inlet.
5.2 Setting up
Insert an appropriate seal between the support flange and
support surface if necessary.
1. Remove the sealing cover if necessary.
2. Install optional accessory parts on the suction branches if
necessary.
3. Lift up the machine drive (→4.1 Transport, Page 10).
1
13
2
4. Place the machine drive with the support flange (1) on the
support surface (2).
5. Insert suitable screws in the through holes (3) and tighten
them crosswise. Make sure that the pump is not distorted.
5.3 Planning pipelines
Water hammer may damage the pump or the system. Plan
the pipes and fittings as far as possible to prevent water
hammer occurring.
5.3.1 Designing pipelines
Plan pipes safely:
– No pulling or thrusting forces
– No bending moments
– Adjust for changes in length due to temperature
changes (compensators, expansion shanks)
5.3.2 Arranging the supports and connections
NOTE
Material damage due to excessive forces and torques on
the pump!
Ensure pipe connection without stress.
1. Support the pipes.
2. Ensure the pipe supports will always allow expansion and
contraction of the pipes.
11336/0420 T/TE 11

Installation and connection
5.3.3 Specifying nominal widths
Keep the flow resistance in the pipes as low as possible.
1. Set the diameter of the optional suction line extension ≥
nominal suction branch width.
2. Make sure the nominal pressure line width is not smaller
than the nominal discharge flange width.
5.3.4 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.
5.3.5 Providing safety and control devices
(recommended)
Avoid contamination
Fit the strainer onto the discharge flange.
Avoid reverse running
1. Install a non-return fitting between the discharge flange and
stop fitting, to ensure that the medium does not flow back
after the pump is switched off.
2. In order to enable venting, include vent connection
between discharge flanges and non-return fitting.
Make provisions for isolating and shutting off the pipes
For maintenance and repair work.
Provide shut-off valves in the pressure line.
Make provisions for measuring the operating conditions
Provide monitoring sensors for both pressure and flow rate.
Make provisions for shutting off the pump during
operation with suction line extension
If tank fill level < 5 mm over the suction line inlet: Provide
suitable measures for shutting off the pump.
5.4 Connecting the pipes
NOTE
Material damage due to excessive forces and torques on
the pump!
Ensure pipe connection without stress.
5.4.1 Keeping the piping clean
NOTE
Material damage due to impurities in the pump!
Make sure no impurities can enter the pump.
Clean all piping parts and fittings prior to assembly.
5.4.2 Installing the pressure pipe
1. Remove the transport and sealing covers from the pump.
2. Fit the pressure line stress-free and sealed.
3. Make sure the seals do not protrude on the inside.
5.4.3 Inspection for stress-free pipe connections
Piping installed and cooled down
1. Disconnect the pipe connections from the pump.
2. Check whether the pipes can be moved freely in all direc-
tions within the expected range of expansion.
3. Make sure that the connections are parallel.
4. Reconnect the pipe connections to the pump.
5.5 Electrical connection
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
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
1. Switch on motor for max. 2 seconds and switch it off again
immediately.
2. Visually check the direction of rotation of the motor fan
impeller and make sure that the direction of rotation of the
motor matches the direction arrow on the pump casing.
3. If the sense of rotation is different: Change over the two
phases (→5.5 Electrical connection, Page 12).
12 T / TE 11336/0420

Operation
6 Operation
For pumps in potentially explosive atmospheres (→ATEX
additional manual).
6.1 Preparing for commissioning
6.1.1 Check downtimes
Before starting up the pump, check the downtime and per-
form the following actions:
– If the hydraulic parts are dirty, clean them.
– Check that the impeller runs freely.
– If the pump is shut down for over 1 year, replace elas-
tomer seals (O-rings).
6.1.2 Filling and bleeding
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Use protective equipment for any work on the pump.
Safely collect the fluid and dispose of it in accordance with
environmental regulations.
1. Close the pressure-side fitting.
2. Fill the pump with the conveyed fluid. Pay attention to
the correct fill levels (→9.2.5 Tank fill levels and minimum
distance, Page 26).
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
Tank, pit or vessel filled sufficiently
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
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
Material damage due to overheating!
Do not operate the pump for long periods with the pressure-
side fitting closed.
1. Close the pressure-side fitting.
2. Switch on the motor and check it for smooth running.
3. Once the motor has reached its nominal speed, open
the pressure-side fitting slowly until the operating point is
reached.
4. Make sure temperature change is smaller than 5 K/min for
pumps with hot fluids.
5. After the initial stress due to the pressure and operating
temperature, check that the pump is not leaking.
6. If leaks are present at the casing seals or discharge
flanges, proceed as follows:
–Switchoffmotor.
– Close the control valves.
– Remedy the leaks.
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 them if necessary
(only after initial commissioning).
11336/0420 T/TE 13

Operation
6.3 Shutting down the pump
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
Before all installation and maintenance work, disconnect
the motor from the mains and secure it against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
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 pumped
liquids!
Use protective equipment for any work on the pump.
Collect leaking liquid safely and damage fitting in accor-
dance with local regulations.
Take the following measures whenever the pump is shut
down:
Pump is Measure
shut down Take measures appropriate for
the fluid (→Tab. 5 Measures
depending on the behavior of
the pumped liquid, Page 14).
…emptied Close the 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
(→4.2 Storage, Page 10).
Tab. 4 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,
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. 5 Measures depending on the behavior
of the pumped liquid
6.4 Restoring the pump to service
1. If the pump is shut down for over 1 year, replace elastomer
seals.
2. Complete all steps as for commissioning
(→6.2 Commissioning, Page 13).
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 13).
14 T / TE 11336/0420

Maintenance
7 Maintenance
Opening the pump casing invalidates the warranty.
When used for the intended purpose the seals are virtually free
of wear and will not require replacement during the warranty
period.
Maintenance and repair work should be undertaken in consul-
tation with Schmitt. The chapter describes maintenance not
within the warranty period.
For pumps in potentially explosive atmospheres (→ATEX
additional manual).
Maintenance during the warranty period will be performed
by Schmitt. Submit evidence of conveyed medium on
request (DIN safety data sheet or confirmation of decon-
tamination).
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 pump when it is running.
Do not carry out any work on the pump when it is running.
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Use personal protective equipment when carrying out any
work on the pump.
1. Check at appropriate intervals:
– Normal operating conditions unchanged
– Tank fill level
2. For trouble-free operation, always ensure the following:
–Noleaks
– No cavitation
– Free and clean filters
–Nounusualru
nning noises or vibrations
7.2 Servicing
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
Before all installation and maintenance work, disconnect
the motor from the mains and secure it against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
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 or hot fluid!
Use personal protective equipment when carrying out any
work on the pump.
Allow the pump to cool completely before commencing any
work.
Make sure the pump is depressurized.
Empty the pump, safely collect the pumped liquid and dam-
age it in accordance with environmental rules and require-
ments.
7.2.1 Maintenance in accordance with main-
tenance schedule
Perform maintenance work in accordance with the mainte-
nance schedule (→9.3 Maintenance schedule, Page 28).
7.2.2 Cleaning the pump
NOTE
High water pressure or spray water can cause material
damage!
Do not direct water jets or steam jets into the opening of
theflangeextension.
Regularly clean the pump to remove heavy dirt.
11336/0420 T/TE 15

Maintenance
7.3 Dismounting
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
Before all installation and maintenance work, disconnect
the motor from the mains and secure it against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
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 or hot fluid!
Use personal protective equipment when carrying out any
work on the pump.
Allow the pump to cool completely before commencing any
work.
Make sure the pump is depressurized.
Empty the pump, safely collect the pumped liquid and dam-
age it in accordance with environmental rules and require-
ments.
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 shut-off valve against accidental
opening.
Wear protective gloves, components can become very
sharp-edged due to wear or damage.
Observe the manufacturer's specifications (e.g. for the
motor).
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 depressurized
Pump completely empty, flushed and decontaminated
Electrical connections disconnected and motor secured
against switch-on
Pump cooled down
Pressure gauge lines, pressure gauge and fixtures dis-
mounted
1. Dismantle the pipes on the pressure side.
2. Remove pump from the system.
3. When dismounting, observe the following:
– Mark the precise orientation and position of all compo-
nents before dismounting them.
– Dismount components concentrically without canting.
7.3.2 Dismount the pump
Following the drawings for disassembly (→9.1.2 Drawin-
gs, Page 23).
When dismounting the motor, observe the supplier’s docu-
mentation (→1.2 Other applicable documents, Page 4).
Tools, aids:
–Vise
– Shaft puller
1. Remove the hexagon screws, washers and nuts (13).
2. Remove the cap nuts on the riser.
3. Remove the housing (12).
4. Remove the O-ring (14).
5. For version T:
– Unscrew the threaded cap (11). Note the right-hand
thread.
– Remove the O-ring (10).
6. Remove the impeller with shaft casing (09) from the
shaft (04).
7. Removethekeyfromtheshaft(04)andplaceitinasafe
location.
8. Remove the cylinder screws (06).
9. Remove the support pipe (05).
10. Remove the housing seal (08).
11. Remove the pressure-side O-ring (07).
12. Remove the flange extension (02).
13. Remove the O-ring (03).
14. Prepare the motor (01) for shaft disassembly as follows:
– Remove the fan cover.
– Remove the fan propeller.
– Fix the motor with exposed shaft end on the fan side in
avise.
15. Remove the grooved taper pin from the motor shaft and
shaft (04) and dispose of it.
16. Remove the shaft (04) from the motor shaft using a shaft
puller.
17. Mount the motor (01).
18. Check that the through holes and relief holes are not
blocked - if they are, clean them.
16 T / TE 11336/0420

Maintenance
7.4 Replacement parts and return
1. Have the following information as shown on the name plate
ready to hand when ordering spare parts (→3.1 Marking,
Page 8).
– Article numbers
–Type
– Year of manufacture
2. Please complete and enclose the confirmation of decon-
tamination for returns
(→www.schmitt-pumpen.de/de/support/downloads.html).
3. Use only spare parts from SCHMITT.
(E-Mail: [e-mail]).
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!
Observe the manufacturer's specifications (e.g. for the
motor).
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.
7.5.1 Preparations for installation
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.
7.5.2 Installing the pump
Following the drawings for assembly (→9.1.2 Drawings,
Page 23).
Note the correct tightening torque for assembly
(→9.2.6 Tightening torques of casing screws, Page 26).
When installing the shaft, the support pipe and flange exten-
sion are mounted and dismounted in order to set the correct
installation dimension.
Tools, aids:
–Drill
–Dialgage
1. Press the shaft (04) onto the end of the motor shaft.
2. Insert the O-ring (03) into the groove on the flange exten-
sion (02).
3. Mount the flange extension (03) onto the support pipe (05).
Align the through holes flush.
4. Mount the support pipe (05) with flange extension (03) to
the motor (01).
5. Screw the support pipe (05) and flange extension (03) to
the motor (01) crosswise using cylinder screws (06).
6. Set the correct distance between the shaft (04) and the
support pipe (05) (→9.2.3 Shaft installation dimensions,
Page 25).
7. Check the shaft (04) for run-out. Ensure a run-out precision
at the shaft end of ≤0.02 mm.
8. If you detect a deviating run-out precision, realign the
shaft (04).
9. Remove the cylinder screws (06).
10. Carefully remove the support pipe (05) with flange exten-
sion (03).
11. In the area of the motor shaft, drill a hole in the shaft (04)
and motor shaft. Note the dimensions and the position of
the groove tapered pin (→9.2.3 Shaft installation dimen-
sions, Page 25).
12. Insert the grooved tapered pin (04) flush into the hole.
13. Mount the support pipe (05) with flange extension (03) to
the motor (01). Align the terminal box and discharge plan
according to the installation situation.
14. Screw the support pipe (05) and flange extension (03) to
the motor (01) crosswise using cylinder screws (06).
15. Insert the housing seal (08) into the groove on the support
pipe (05).
16. Fit the O-ring (07) onto the discharge flange.
17. Insert the key into the end of the shaft (04).
18. Slide the impeller with shaft casing (09) onto the shaft (04).
Make sure that the impeller is seated securely on the end
of the shaft (04).
11336/0420 T/TE 17

Maintenance
19. For version T:
– Fit the O-ring (10) onto the threaded cap (11).
– Screw on the threaded cap (11). Note the right-hand
thread.
20. Turn the impeller (09) and check whether it runs easily and
smoothly.
21. Fit the O-ring (14) onto the connecting piece.
22. Fit the housing (12) onto the support pipe (05) and the riser.
23. Fit the hexagon screws, washers and nuts (13) and tighten
them crosswise.
24. Screw the cap nuts onto the connecting piece.
7.5.3 Install the pump into the system
Install the pump in the system (→5 Disposal, Page 11).
18 T / TE 11336/0420

Troubleshooting
8 Troubleshooting
For pumps in potentially explosive atmospheres (→ATEX
additional manual).
If faults occur which are not specified in the following table or
cannot be traced back to the specified causes, please consult
the manufacturer.
Possible faults are identified by a fault number in the table
below. This number identifies the respective cause and rem-
edy in the troubleshooting list.
Fault Number
Pump not pumping 1
Pumping rate insufficient 2
Pumping rate excessive 3
Pumping pressure insufficient 4
Pumping pressure excessive 5
Pump running roughly / loud noises /
vibration
6
Pump leaks 7
Excessive motor power uptake 8
Housing temperature too high 9
Tab. 6 Fault/number assignment
Fault number
12 34 56789
Cause Remedy
X––– –––––Pressure pipe closed by fitting Open the fitting.
X––– –––––Transport and sealing cover still in place Remove the transport and sealing
cover.
Dismount the pump and inspect it for
dry-running damage.
XX –X–––––Motor speed too low Compare the required motor speed with
the specifications on the pump type
plate. Replace the motor if necessary.
Increase the motor speed if speed
control is available.
XX –X–X–––Pump or strainer blocked or encrusted Clean the pump or strainer.
XX –X–X–––Air is sucked in Check the fill level of the tank/pit/vessel.
XX –X–X–––Pump running in the wrong direction Change over any two phases in the
motor.
XX –X–X–––Impeller out of balance or blocked Clean the impeller.
XX –– XX–––Pressure pipe blocked Clean the pressure pipe.
X––––X–––Tank/pit/vessel not filled Fill the tank/pit/vessel.
Fill the pump completely.
–X–X–X–––Hydraulic parts of the pump dirty, clotted
or encrusted
Dismount the pump.
Clean the parts.
11336/0420 T/TE 19

Troubleshooting
Fault number
12 34 56789
Cause Remedy
–X–X–X–––Suction head too large: NPSHpump is
larger than NPSHsystem
Increase pump inlet pressure.
Consult the manufacturer.
–X–X–X–––Back pressure of the system is too high,
pump selected is too small.
Consult the manufacturer.
–X–X–X–––Pump parts worn Replace the worn pump parts.
–X–X–X–X–Motor running on 2 phases Check the fuse and replace it if
necessary.
Check the cable connections and
insulation.
–X–X–––XXViscosity or specific gravity of the pumped
liquid outside the range specified for the
pump
Consult the manufacturer.
–X–X––––XGeodetic differential head and/or pipe flow
resistances too high
Remove sediments from the pump
and/or pressure pipe.
Install a larger impeller and consult the
manufacturer.
–X–– XX–––Pressure-side fitting not opened wide
enough
Open the pressure-side fitting.
–– XX –X–X–Pressure-side fitting opened too wide Throttle down at the pressure-side
fitting.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
–– X–X––––Viscosity lower than expected Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
–– X–XX–X–Motor speed too high Compare the required motor speed with
the specifications on the pump type
plate. Replace the motor if necessary.
Reduce the motor speed if speed
control is available.
–– X–XX–X–Impeller diameter too large Throttle down the flow rate at the
pressure-side fitting. Observe the
minimum flow rate.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
–– X––
X–X–Geodetic differential head, pipe flow
resistances and/or other resistances lower
than specified
Throttle down the flow rate at the
pressure-side fitting. Observe the
minimum flow rate.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
–– –– –XXX–Pump distorted Check the pipe connections and pump
attachment.
Check the attachment of the support
flange.
20 T / TE 11336/0420