Pumpex K 101, K 200, K 151, K 250, K 300 Service Instruction
Service instruction
K 101, K 151, K 200, K 250, K 300
(M50 Motors)
K 101/151/200/250/300.58.0404.Eng/Digital
2 (15)
K 101/151/200/250/300.58.0404.Eng/Digital
SERVICE INSTRUCTION
K 101, 151, 200, 250, 300
Table of Contents
Introduction.............................................................................................................................3
Cross-sectional drawing........................................................................................................4
Nameplate..................................................................................................................4
Safety Precautions................................................................................................................4
Minimizing Environmental Impact..........................................................................................5
General Maintenance.............................................................................................................5
Disassembling
Removal from the Wet Well....................................................................................................6
Disassembling the Volute.....................................................................................................6
Adding and Changing the Oil..................................................................................................6
Changing the Cooling Liquid..................................................................................................7
Inspection of Terminal Board Area.........................................................................................7
Disassembling the Terminal Housing....................................................................................8
Disassembling the Cooling Jacket.........................................................................................8
Disassembling the Impeller....................................................................................................8
Disassembling the Seal Cartridge..........................................................................................8
Changing the Stator Unit........................................................................................................8
Disassembling the Stator.......................................................................................................9
Disassembling the Rotor and Bearings...............................................................................10
Assembling
Mounting...............................................................................................................................10
Mounting the Bearings.........................................................................................................10
Mounting the Rotor in the Oil Housing.................................................................................11
Mounting the Stator...........................................................................................................11
Mounting the Seal Cartridge.................................................................................................11
Mounting the Impeller.........................................................................................................12
Mounting the Cooling Jacket................................................................................................12
Mounting the Cable Seal......................................................................................................12
Mounting the Terminal Housing............................................................................................12
Mounting the Cover..............................................................................................................12
Mounting the Motor Unit to the Volute..................................................................................13
Adjusting the Wear Ring.......................................................................................................13
Testing.............................................................................................................................13
Recycling in Case of Scrapping the Pumps........................................................................13
Wiring Diagram.....................................................................................................................14
Torque Rating........................................................................................................................15
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K 101/151/200/250/300.58.0404.Eng/Digital
SERVICE INSTRUCTION
K 101, 151, 200, 250, 300
This service manual covers pumps K 101, K 151, K 200, K 250 and K 300 with M50 motors in
the following designs:
Type F Wet Pit Installation
Installed on a guide rail system with a quickrelease base elbow, the base elbow is bolted
to the floor of the sump. The volute is equipped
with an adapter to be connected to the
discharge elbow.
Two twin guide rails are mounted to the
discharge elbow to steer the pump into the
right position when hoisted up and down. In
case of Wet Pit Installation, the driving units
lack an internal, closed loop cooling system.
Type T, Vertical Dry Pit Installation
Type H, Horizontal Dry Pit Installation
Installed with a suction pipe. The pump is
supported by an adjustable fabricated steel
stand, mounted at the factory.
The height of the stand is sufficient for the
standard suction elbow to be used on a flat
floor. The pump volute is drilled or threaded on
the connection-flange and equipped with studs
on the suction-flange. The motors are equipped
with a maintenance-free internal, closed loop
cooling system.
Type P, Wet Pit Portable
Installation
A version of the pump which is suitable for
temporary installations. The pump is
equipped with a fabricated round steel stand
and a discharge spigot
for a hose or threaded
connection. The minimum
water level in the wet
well for continuous
operation should not be
below ¾ of the motor
housing.
For continuous operation
at water levels below the
abovementioned level,
an internal cooling jacket is recommended.
Intermittent operation down to a water level
below the top edge of the volute is not
acceptable.
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K 101/151/200/250/300.58.0404.Eng/Digital
SERVICE INSTRUCTION
K 101, 151, 200, 250, 300
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Box 5207 S - 12118 JOHANNESHOV SWEDEN
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K 101
No 10119999 P.2 45 kW
3 Ph 50 Hz
U 400 V Y n 1465 rpm Class F IP68
I 81 A 717 kg
20 m
Volute
EcoCool
TM
Internal Closed
Loop Cooling
System
Impeller
SmartSeal
TM
Seal Cartridge
Stator Unit
Rotor
Optimizer
TM
Adjustable Wear Ring
Cable Seal
Guide Rails
Discharge Elbow
Safety Precautions
Notice: When performing repairs, the safety instructions in the Service instruction under the
Installation and Operating Instructions, especially the section entitled ”Safety”, must be
observed. When performing any work, appropriately sized and adequately dimensioned hoists
and other tools should be used. Do not work under a suspended load.
Before doing any maintenance or repairs to the pump, make sure that it is isolated from the
power supply and ensure that no one can reconnect it while being worked on. Never move
or lift a pump by using the cable.
If the pump has been working in sewage or similar substance, before working on it, use a
power or steam hose to clean it, and observe personal hygiene precautions.
Electrical work on the pumps should only be performed by qualified personnel.
1 Type of pump
2 Serial Number
3 Working voltage
4 Rated current
5 Rated power
6 Speed of rotation
Notice! Standard nameplate
7 Frequency
8 Winding Class
9 Weight
5 (15)
K 101/151/200/250/300.58.0404.Eng/Digital
SERVICE INSTRUCTION
K 101, 151, 200, 250, 300
Minimizing the Environmental Impact
A life cycle analysis shows that the larger part of the environmental impact caused by
pumps arises in the operating phase. In the five categories of environmental impact, the
operating phase constitutes the major part. The operating phase is vitally important,
especially in the case of greenhouse gases discharging. This is due to the energy that the
pump is using while in operation.
Therefore, it is important to operate the pump with as little energy as possible, which, in turn,
helps to reduce the operating costs.
Points to be Observed:
1. Choose a pump that has the best efficiency and the duty point should be as near as
possible to the best efficiency.
2. Do not choose a pump that is too big.
3. Adjust the wear ring against the impeller when the flow significantly decreases.
4. Change the parts if it is not possible to adjust the pump flow to the original value.
General Maintenance Advice
Before assembling, all parts should be carefully checked.
Parts being reused must be in perfect condition and carefully cleaned before fitting.
The pump and its electrical cables must be disconnected from any power source
by a qualified electrician before any inspection or service is performed!
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