Gianneschi EXCELSIOR - Maintenance; Safety; Starting

2.1 SAFETY.
Caution, if there is any doubt about safety of the pump, do not use it.
Failure to comply with the following instructions can result in personal injury or damage to the
pump, experienced personnel is required for the following phases:
• Before installation, check that the hydraulic plant is in good condition for the good
functioning of the pump
• Always observe the technical information
• Never put the fingers inside the port connections
• Always ensure that the pump has been isolated from the pump piping system and that
there is no pressure contained within the pump before any maintenance is commenced.
3 MAINTENANCE.
Gianneschi Pumps and Blowers hand operated pumps and are designed to require minimum of
maintenance.
The pump must be repaired only by competent or qualified personnel, using manufacturer's
spares. If this procedure is not followed manufacturer declines any responsibility and warranty is
invalid.
• If there is a risk of freezing, it is necessary to empty the pump casing, then fill the pump
up before gets working again.
• If a filter and a foot valve are installed, check periodically their integrity and cleanliness
• Periodically move the handle.
• Disassembling the pump is a fairly complex operation and should only be undertaken by
qualified personnel.
4. STARTING.
These pumps are operated by a left and right reciprocating motion achieved by a handle.
Internally there is a "wing" fitted with two valves, and at the lower half of the body is a suction
divider that has a further two valves. The left and right motion of the handle causes the "wing" to
wobble, causing alternate suction and discharge on the two sides of the pump. The resulting
flow of liquid is nearly constant with a slight drop at the end of each stroke.
Pumps of this type can give up to 7 meters of lift if a foot-valve is fitted; this device is
unnecessary when the lift is less than 2 meters.
Discharge pressure is up to 2.5 bar depending on the size of the pump.
During all operation of pumping move the handle completely covering all the size available
At the first will he necessary to made some pump without any result just to have fill the pump.
The flux of liquid is indicated by the arrow.