Calpeda I User Manual

EN
I-IR-IRR Rev10 - Operating Instructions Page 11 / 32
11. ESIGNATION OF PARTS
Nr. Designation
12.00 Casing cover
12.20 Screw
14.00 Pump casing
14.12 Plug (draining)
14.20 O-ring
28.50 Drive gear
28.51 Drive shaft
30.50 Driven gear
30.51 Driven shaft
32.00 Lantern bracket
32.20 Screw
40.00 Radial shaft seal
40.04 Spacer ring
40.08 Shoulder ring
70.00 Lantern bracket
70.18 Screw
70.19 Nut
70.20 Screw
73.00 Pump-side bearing
76.00 Motor casing with winding
76.04 Cable gland
76.54 Terminal box, set
78.00 Shaft with rotor packet
81.00 Fan-side bearing
82.00 Motor end shield, fan side
82.04 Compensating spring
88.00 Motor fan
90.00 Fan cover
90.04 Screw
92.00 Tie-bolt
94.00 Capacitor
94.02 Capacitor gland
98.00 Terminal box cover
98.04 Screw
98.08 Gasket
99.00 Motor, complete
Changes reserved.
12. TROUBLESHOOTING
OFF
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.
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM PROBABLE CAUSES POSSIBLE REMEDIES
1)
The motor does
not start
1a) Unsuitable power supply
1b) Incorrect electrical connections
1c) Engine overload protective device cuts
in.
1d) Blown or defective fuses
1e) Shaft blocked
1f) Motor failed
1a) Check that the mains frequency and voltage are suitable.
1b) Connect the power supply cable correctly. Check the setting of the
thermal overload protection.
1c) Check the power supply and make sure that the pump shaft is turning
freely. Check the setting of the thermal overload protection.
1d) Replace the fuses, check points a) and c)
1e) See “Blocked pump” instruction booklet
1f) Repair or replace the engine.
2)
Pump blocked
2a) Prolonged periods of inactivity .
2b) Presence of solid bodies in the gears
2c) Bearings or bearing sleeve siezed
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 gears
2c) Replace the bearings or bearing sleeve.
3)
The pump
functions
but no liquid
comes out
3a) Presence of air inside the pump or
suction pipe
3b) Possible inltration of air.
3c) Foot valve blocked or suction pipe not
fully immersed in liquid
3d) Suction lter blocked
3a) Release the air from the pump using the delivery control valve.
3b) Check which part is not tight and seal the connection.
3c) Clean or replace the bottom valve and use a suitable suction pipe .
3d) Clean the lter, if necessary, replace it . See point 2b) also.
4)
Insufcient ow
4a) Pipes and accessories with diameter
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 viscosity of the liquid
pumped
4g) Incorrect direction of rotation
4a) Use pipes and accessories suitable for the specic application
4b) Clean the impeller and install a suction lter
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
5)
Noise and
vibrations
from the pump
5a) Worn bearings or bearing sleeve
5b) Unbalanced power supply
5a) Replace the bearings or bearing sleeve
5b) Check that the mains voltage is right
6)
Leakage from
the mechanical
seal rings
6a) The pump has run dry
6b) Mechanical seal rings scratched by
the presence of abrasive parts in the
pumped liquid
In cases 6a), 6b), replace the mechanical seal rings
6a) Make sure that the pump casing are full of liquid and that all the air
has been expelled.
6b) Install a suction lter
.
I-IR-IRR Rev10.indd 11 15/04/20 08:44

Calpeda I Specifications

General

Brand	Calpeda
Model	I
Category	Water Pump
Language	English