Esignation Of Parts; Troubleshooting - Calpeda VAL series Betriebsanleitung

11. ESIGNATION OF PARTS

Nr. Designation
12.00 Casing cover
12.20 Screw
13.12 Delivery side counterflange
13.16 Screw
13.20 Nut
14.00 Pump casing
14.24 Screw
14.29 Washer
28.00 Impeller
28.04 Impeller nut (or screw)
28.08 Washer
28.20 Key
50.00 Lower bearing bush housing
52.00 Bearing sleeve
52.04 Grub screw
54.00 Support column
54.04 Grub screw
54.08 Grub screw
56.00 Adapter
64.00 Pump shaft
64.08 Shaft sleeve
64.20 Key
64.24 Shear pin
70.00 Motor cover, pump side

12. TROUBLESHOOTING

WARNING: Turn off the power supply before performing any operations.
Do not allow the pump or motor to run when dry even for a short period.
OFF
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM PROBABLE CAUSES
1) 1a) Unsuitable power supply
The motor does 1b) Incorrect electrical connections
not start 1c) Engine overload protective device cuts
in.
1d) Blown or defective fuses
1e) Shaft blocked
1f) Motor failed
2) 2a) Prolonged periods of inactivity .
Pump blocked 2b) Presence of solid bodies in the impeller
2c) Bearings or bearing sleeve siezed
3) 3a) Insufficient immersion depth
The pump 3b) Possible infiltration of air.
functions
but no water
comes out
4) 4a) Pipes and accessories with diameter
Insufficient flow too small
4b) Presence of deposits or solid bodies
in the impeller
4c) Rotor deteriorated
4d) Worn rotor and pump case
4e) Gases dissolved in the water
4f) Excessive
pumped
4g) Incorrect direction of rotation
5) 5a) Worn bearings or bearing sleeve
Noise and 5b) Unbalanced power supply
vibrations
from the pump
VAL_SC Rev23R - Operating Instructions
POSSIBLE REMEDIES
1a) Check that the mains frequency and voltage are suitable.
1b) Connect the power supply cable correctly. Check the setting of the
1c) Check the power supply and make sure that the pump shaft is turning
1d) Replace the fuses, check points a) and c)
1e) See "Blocked pump" instruction booklet
1f) Repair or replace the engine.
2a) Unblock the pump by using a screw driver to turn the relevant notch
on the back of the shaft.
2b) Remove any solid foreign bodies inside the impeller
2c) Replace the bearings or bearing sleeve.
3a) Increase the immersion depth
3b) Increase the immersion depth
4a) Use pipes and accessories suitable for the specific application
4b) Clean the impeller and install a suction filter
4c) Replace the impeller
4d) Replace the impeller and the pump casing
4e) Perform the opening and closing manoeuvres through the feeder gate
4f) The pump is unsuitable
4g) Invert the electrical connections in the terminal board
viscosity of the liquid
5a) Replace the bearings or bearing sleeve
5b) Check that the mains voltage is right
70.18 Screw
70.20 Screw
73.00 Pump side ball bearing
76.00 Motor casing with winding
76.04 Cable gland
76.54 Terminal board, set
78.00 Shaft with rotor packet
81.00 Fan side ball bearing
82.00 Motor end shield, fan side
82.04 Compensating spring
82.08 Screw
88.00 Motor fan
90.00 Fan cover
90.04 Screw
94.00 Capacitor
94.04 Capacitor collar
98.00 Terminal box cover
98.04 Screw
98.08 Gasket
Changes reserved.
thermal overload protection.
freely. Check the setting of the thermal overload protection.
GB
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