General Pump MW Owners Manual - Manual (Page 19)

GENERAL PUMP
A member of the Interpump Group
MW/S SERIES
12. PUMP STORAGE
12.1 Filling the Pump With An Anti-Corrosion Emulsion or Anit-freeze By Using An External Diaphragm Pump
As In The Layout Shown in Paragraph 9.7.
a) Close the filter draining, if open.
b) Be sure that the connecting hose is clean, spread with grease and connect it to the high pressure outlet port.
c) Fit a suction hose to the membrane pump. Open the pump suction connection and fit hose between it and the
membrane pump.
d) Fill the container with the solution/emulsion.
e) Put the free extremeties of the suction line and the high pressure outlet hose inside the container.
f) Start up the diphragm pump.
g) Pump the emulsion until it comes out of the high pressure hose.
h) Continue pumping for at least another minute; if needed, the emulsion can be reinforced by adding, for example,
Shell Donax
i) Stop the pump, remove the hose from the suction connection and close it with a plug.
j) Remove the hose from the high pressure outlet port. Clean, grease and plug both connections and the
hoses.
12.2 Hoses
a) Before greasing and protecting the hoses according to the previously described procedure, dry the connections
using compressed air.
b) Cover with polyethelene.
c) Do not wrap them too tightly; be sure there is no bending.
13. PRECAUTIONS AGAINST FREEZING
In areas and periods of the year where there is risk of freezing, follow the instructions indicated in Chapter 12
(see paragraph 12.2).
In the presence of ice, in no case must the pump be started until the entire circuit has been completely
thawed out; not complying with this indication may cause serious damage to the pump.
14. WARRANTY TERMS
The pump is guaranteed for a period of 5 years from the delivery date, with the exception of parts subject to wear. In
any case, please refer to the contract terms for other warranty conditions. The warranty is void if:
a) The pump has been used for purposes that differ from that agreed.
b) The pump has been fit with an electric or diesel engine with performance greater than that indicated in the table.
c) The required safety devices were un-adjusted or disconnected.
d) The pump was used with accessories or spare parts not supplied by General Pump.
e) Damage was caused by:
1) improper use
2) the non-observance of maintenance instructions
3) use not compliant with operating instructions
4) insufficient flow rate
5) faulty installation
6) incorrect positioning or sizing of the hoses
7) non-authorized design changes
8) cavitation
Page 19
Ref 300790 Rev.D
11-12