Page
6
GXR, GXV Rev. 8 - Operating Instructions
GB
During maintenance keep particular attention
in order to avoid the introduction of small
external parts, that could compromise the
device safety.
It is forbidden to execute any operations with
the direct use of hands. Use water-resistant,
anti-cut gloves to disassemble and clean the
filter or in other particular cases.
During maintenance operations external
personnel is not allowed.
Maintenance operations that are not described in this
manual must be made only by special personnel
authorized by Calpeda S.p.A.
For further technical information regarding the use or
the maintenance of the device, contact Calpeda
S.p.A.
8.1 Routine maintenance
Before every maintenance operations
disconnect the power supply and make sure
that the device could not accidentally operate.
The pump may have been immersed in
hazardous
substances
or
products
emanating toxic gases, or may be located in
an environment which is toxic due to other
reasons;
make
sure
all
necessary
precautionary measures are taken to avoid
accidents.
Any pumps that require inspection/repair must be
drained and carefully cleaned inside and outside
before dispatch/submission.
Hose down all accessible parts with a jet of water.
If there is a risk of freezing, take the pump out of the
water and leave in a dry place.
When used with muddy liquids, run the pump briefly
with clean water to remove all deposits immediately
after use or before a period of inactivity.
8.2 Dismantling the system
Close the suction and delivery gate valves and drain
the pump casing before dismantling the pump.
8.3. Dismantling the pump
For disassembly and reassembly, refer to the cross-
section drawing (paragraph 12.3 Annexes).
The pump function can be impaired by erroneous
procedure or tampering with internal parts.
To inspect the impeller (28.00), to clean the internal
parts and to check whether the impeller turns freely
when moved by hand, remove the screws 15.70 or
strainer 15.50, the screws (14.24) pump casing (14.00).
To dismantle the impeller remove the nut (28.04).
Others parts should not be dismantled.
8.4. Mechanical seal inspection
If the mechanical seal (36.00) and the oil chamber are
to be inspected, follow these instructions.
CAUTION: there may be slight pressure in
the oil chamber.
Care must be taken to avoid a sudden spurting
of oil.
Once the plug (34.08) with washer have been removed,
adjust the hole to the downward position and empty the
chamber completely.
Do not dispose of the waste oil in the enviroment.
The mechanical seal (36.00) can be inspected by
removing the screws (70.18).
When re-filling with fresh oil, remember that the
chamber must not be completely filled; a sufficient
quantity of air must remain inside it in order to
compensate for overpressure caused by thermic
dilation of the oil.
The quantity of oil to be inserted in the chamber is:
0,04 litres for
GXR, GXV
0,08 litres for
GXR 12
Use white oil suitable for food machinery and
pharmaceutic use.
9. DISPOSAL
The final disposal of the device must be done by spe-
cialized company.
Make sure the specialized company follows the clas-
sification of the material parts for the separation.
Observe the local regulations and dispose the device
accordingly with the international rules for environ-
ment protection.
10 SPARE PARTS
10.1 Spare-parts request
When ordering spare parts, please quote their desi-
gnation, position number in the cross section drawing
and rated data from the pump name plate (type, date
and serial number).
Any
pumps that require inspection/repair
must be drained and carefully cleaned inside
and outside before dispatch/submission.
Hose down all accessible parts with a jet of water.
The spare parts request shall be sent to CALPEDA
S.p.A. by phone, fax, e-mail.
Nr. Designation
OFF
OFF
OFF
i
i
14.00 Pump casing
14.02 External jacket
14.20 Casing gasket
14.24 Screw
15.50 Strainer
15.60 Spacer screw
15.70 Screw
28.00 Impeller
28.04 Impeller nut
28.08 Washer
34.03 Oil chamber cover
34.08 Plug
34.09 O-ring for plug
36.00 Mechanical sea
36.54 Spacer sleeve
40.00 Radial shaft seal
64.08 Shaft sleeve
64.12 O-ring
64.14 Lower spacer sleeve
70.00 Motor cover, pump
side
70.08 O-ring
70.09 O-ring
70.10 O-ring
70.11 Cable gland ring (float
switch)
70.12 Cable gland ring
70.13 Washer
70.17 Lock ring
70.18
Screw
73.00 Pump side bearing
73.08 V-Ring
76.02 Kit, motor jacket
76.16 Support
76.60 Float switch
76.62 Jacket cover
76.64 Handle
76.68 O-ring
78.00 Shaft with rotor packet
81.00 Bearing
82.02 Screw
82.03 O-ring
82.04 Compensating spring
82.05 Screw
94.00 Capacitor
96.02 Cable with plug
96.09 Screw
96.12 Cable fastener
96.13 Cable fastener
IST GXR_10_2016Re8_MXS 11_03con gall 28/10/16 10:52 Pagina 12
