19
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GRS – guide rail system (if having been ordered) consisting of:
-
footing
-
movable hook
-
upper holder of guide rails
-
stainless steel chain
Warning: The guide rails are not included in the shipment!!! They are available upon order.
9.0 OPERATION FAILURES, THEIR CAUSES AND REMOVAL
FAILURE CHARACTERISTIC
PROBABLE CAUSE
REMEDY
1. After switching on the motor
is not running and the pump is
not working
1.1 No voltage in the electricity network
Check the power supply*
1.2 Disconnected cable
Change the cable*
1.3 Defective connection
Repair, finish connection*
1.4 Automatic disconnecting during activity
Find cause, remove it
1.5 Burnt fuse, dropped out breaker
Replace fuse, turn the breaker on*
2. Motor runs (buzzes) yet the
pump is not working
2.1 Casing is full of the gas
Deaerate the pump
2.2 One-phase operation caused by a defect in connection
Repair connection*
2.3 One-phase operation caused by interruption of one of
the cable conductors
Replace the cable*
2.4 Blocking caused by defective bearing
Replace defective bearing
2.5 Blocking of the impeller
Check the impeller and clean it
2.6 Troubles with aditional thermal protection
Check and replace if necessary*
2.7 Voltage decrease
Set the power source*
3. The pump starts running,
however the output is low
3.1 Delivery head too big
Replace the pump by more suitable one
3.2 Opposite direction of rotation of the motor
Change two of three phases*
3.3 Delivery hose is clogged
Clean it
3.4 Impeller is heavily worn
Replace for new one
3.5 Clogged sucking of pump and impeller
Clean it
3.6 Defective motor wiring
Replace*
4. Aditional thermal protection
is switching off
4.1 Current breaker set improperly
Set to the motor nominal current*
4.2 Overloading of motor caused by an object that has
blocked the impeller
Dismount and remove the object
4.3 Overloading caused by high specific density or viscosity
of the liquid
Reduce specific density or viscosity
4.4 Too high temperature of the pumped liquid
Reduce the temperature of the pumped liquid
4.5 Insufficient cooling of the motor frame caused by
clogged delivery or too long "dry" operation
Remove the defects (clean the delivery pipe).
Increase the level of the pumped liquid.
5. Big vibrations
5.1 Impeller is worn on one side
Replace the impeller
5.2 Pump rotates in opposite direction
Change two of three phases and therefore
change the direction of rotation of motor*
5.3 Bearings are worn
Replace by new bearings
6. Series GF – when pump
starts cutting, circuit breaker
switch off
6.1 Wrong settining of current protection
Set the current protection in accordance with
5.0*
6.2 Worn cutting device
Replace radial cutter and cutter ring
* This operations can must be carried out by an expert and it must comply with national standards and regulations in force.
10.0 GUARANTEE
The manufacturer provides guarantee in the length of 24 months from delivery performance.
It shall remove for free defects under the following conditions:
-
The defect occurs by fault of improper design, manufacturing or use of defective material;
-
The pump is operated according to this manual;
-
Original spare parts or parts supplied by the pump importer are used;
-
Servicing and repairs are carried out by the importer or a contracting service centre
The guarantee shall not cover the defects caused by:
-
Improper operation and handling contrary to the safety regulations;
-
Defective installation;
-
Improper or unauthorized interventions in the pump;
-
Natural wear and tear and if pumping liquids except for those recommended in chapter 1.0.
The guarantee shall be limited to the above-mentioned obligations and excludes any damage caused to the health,
chattels and property of persons.
The right to change text, technical data and pictures is reserved.
