Starting; Start And Stop Frequency Control; Maintenance; Lubrication - STA-RITE vx Manual Del Producto

Danger If the fluid flowing in the pipes and circulat-
ing in the machine has a temperature
higher than 65 °C, Use overall and gloves
protecting against high temperatures
Danger Make sure that the priming cap and the air
valve are perfectly tightened
primimg
Air valve
cap
discharge
drain cap
cap
VX 2B – VX 4
primimg
Air valve
cap
drain cap
VX 8 – VX 16
primimg
primimg
cap
primimg
cap
cap
drain cap
drain cap
VXI – VX SS
primimg
cap
VX 32

4.2 Starting

We suggest carrying out the following operations for the first
starting:
- Loosen the air valve (if present) or open the priming cap
primimg
Air valve
cap
discharge
drain cap
primimg
cap
drain cap
primimg
primimg
cap
cap
drain cap
drain cap
Air valve
Discharge
cap
Discarge
cap
- If air comes out from the air valve, carry out a new priming
operation
- Tighten the air valve (if present) or open the priming cap
- Open the gate on the delivery piping
- Start the machine
- Slowly open the gate on the delivery piping in order to
prevent water hammering on the delivery piping
- Adjust the thermal relay depending on the current absorbed
by the machine
- Adjust the start and stop pressure of the pressure gauge
controlling the machine operation, if present

4.3 Start and stop frequency control

Carry out the following operations to control the frequency of
starts and stops:
- Control the machine operation for one hour
A- For machines fitted with a motor having an absorbed power
up to 4 kW, if the number of starts/hour is higher than 40,
adjust the machine control equipment so that the frequency
is reduced
B- For machines fitted with a motor having an absorbed power
higher than 4 kW, if the number of starts/hour is higher than
cap
30, adjust the machine control equipment so that the fre-
quency is reduced
Danger
Air valve
Attention

5. MAINTENANCE

5.1 Lubrication

The seal on the shaft is self-adjusting. The seal surfaces are
wear-resistant and are lubricated by the pumped fluid.
The machine plain bearings are lubricated by the pumped fluid.
The motor ball bearings are self-lubricated by heat-resistant
grease
Electric motors with grease cup: lubricate every 1500
functioning hours with bearing grease
Attention

5.2 Temporarily quiescing

Carry out the following operations to set the machine to quiescing
for a long period of time
- Cut-off the power supply system by means of the cut-off switch
- Carry out the following operations if it is possible that
ambient temperature falls under the pumped fluid freez-
ing temperature:
-
A- If the whole system must be set to quiescing:
-- Empty the system
In case of high temperature fluids, wait for
an adequate time for the fluid contained in
the machine to cool before unscrewing the
screws securing the machine to piping
Always check the machine filling. Never
start the machine before filling it up with
fluid as shown in "Use", "Priming"
If the machines are installed, used and
maintained according to the instructions
contained in this manual, they do not need
lubrication. Comply with the instructions of
this manual