Davey HS50-06 Installation And Operating Instructions

Connection of Mains Scheme or Town Water Supply
to either Suction or Discharge of Pumps
Most Water Supply Authorities have strict regulations regarding direct
connection of pumps to mains water supplies. In most cases an isolating tank
is required between mains supply and pump. Davey also recommend this
method. Directly applied mains pressure can exceed pump operating pressure
and damage pump.
Davey Water Products Pty Ltd can not accept responsibility for loss or
damage resulting from incorrect or unauthorised installations.
Priming and Operation
1. Ensure outlet nearest to pump is
3. Switch on.
open.
2. Fill pump body and suction
line through priming plug hole
located above suction inlet and
4. Prime should establish almost
replace plug.
immediately with a strong flow
of water, however, in some
installations it may be
necessary to repeat
the above operation
to remove all air from
the system.
WARNING:
DO NOT RUN DRY.
DO NOT RUN WITH LOSS OF PRIME.
DO NOT PUMP WATER CONTAINING ABRASIVE MATERIALS.
Trouble Shooting Check List
MOTOR OPERATING BUT NOT PUMPING
1. Suction line and pump body not filled with water.
2. Leaking foot valve.
3. Air leaks in suction lines or suction pipe not under water.
4. Air trapped in suction lines (also possible with flooded suction) due to
uneven rise in piping (eliminate humps and hollows).
5. No water at source or water level too low.
6. Valve on suction or delivery lines closed.
MOTOR NOT RUNNING
1. Power not connected.
2. Supply voltage too low.
3. Overload tripped.
4. Motor not free to turn e.g. a blocked impeller.
5. Internal motor fault.
MOTOR RUNS FOR SOME TIME THEN STOPS - RESTARTS
AUTOMATICALLY AFTER SHORT TIME
Overload tripping in motor - low voltage at motor terminals
- motor in direct sunshine or in "hot box"
- motor not free to turn (eg: blocked)
*NOTE "MOTOR PROTECTION DEVICE" :
For protection, the Davey pump motor is fitted with an automatic
reset thermal overload, constant tripping of this overload indicates a
problem e.g. low voltage at pump, excessive temperature (above 50°C)
in pump enclosure.
WARNING: Automatic reset thermal overloads will allow the pump to
restart without warning. Always disconnect the pump motor from the
electrical supply before maintenance or repairs.
WARNING: When servicing or attending pump, always ensure power
is switched off and lead unplugged. Electrical connections should be
serviced only by qualified persons.
Care should also be taken when servicing or disassembling pump to
avoid possible injury from hot pressurised water. Unplug pump, relieve
pressure by opening a tap on the discharge side of the pump and allow
any hot water in the pump to cool before attempting to dismantle.
IMPORTANT:
DO NOT USE petroleum based fluids or solvents (e.g. Oils, Kerosene,
Turpentine, Thinners, etc) on the plastic pump components or seal
components.
After Sales Service
For professional after sales service or repair contact your Davey Dealer.
For assistance in locating your nearest dealer contact the Davey Customer
Service Centre on 1300 2 DAVEY.