Product Manual

PUMP LOCATION:
For most efcient operation, site the pump as close to the water as practical.
It is essential for the correct function of the engine that it be located on a horizontal surface. If allowed
to run at an inclination, the oil lubrication system of the engine may not operate correctly. Subsequent
engine failure would not be covered by the manufacturer’s guarantee.
The pump should be positioned in a well drained location to avoid possible property damage by leaking
hose ttings or pump seals, spilled engine fuel etc.
If you intend to operate your pump on a hard surface, Davey suggest a suitable resilient mounting to
be tted to your pump and engine.
SUCTION PIPE:
A reinforced or non-collapsible hose should be used for the pump suction. The minimum suction pipe
size should be 38mm (1
1/2”) I.D. for up to 6.5hp Fireghter
®
models, 50mm (2”) I.D. for G5006 and 9hp
& 13hp Fireghter
®
models and 80mm (3”) I.D. for G8016 Fireghter
®
models. A strainer should always
be tted to the bottom of the suction pipe. The strainer should be kept out of sand, mud etc., to avoid
particles being drawn into the pump and causing damage by abrasion.
Always locate the pump so that the rise of suction pipe from water to pump is even with no humps or
hollows where air may be trapped.
All pipe connections must be air tight for best priming and operation - check that washers in nuts and
tails are in good order.
DELIVERY PIPE:
Care should be taken on correct selection of pipe pressure rating as single stage Fireghter
®
units are
capable of delivering pressures up to 650kPa (93psi). Two stage Fireghter
®
Plus units are capable of
pressures up to 1135kPa (165psi).
PUMP PRIMING:
To prime the pump initially, it is necessary to ll the pump body with water before starting the engine.
The priming plug and drain plug both have “bayonet” style tment, with a safety release mechanism.
When correctly installed the plug handles will be as shown in illustration one below. To remove
the plug, rst twist it counter-clockwise approximately 60 degrees till any pressure is released (see
illustration two). At this point the plug will partly disengage.
Once any residual pressure has been released the plug can be fully removed by continuing to turn it to
the 90 degree position (see illustration three).
Keep the plug and it’s surround free from sand and grit. Occasionally apply a suitable silicon based
rubber grease (petroleum based greases are not acceptable) to the oring.
The pump drain plug is identical in operation. Both plugs are available with a
1/4” BSP taping to
facilitate the tment of pressure gauges or automatic drain valves etc.
PUMP PRIMING continued...
Choke and start engine, open discharge then allow the pump to run until it is drawing water.
The pump will establish prime better at higher engine speeds. Allow up to 3 minutes for long or deep
suctions.
If the pump fails to prime, then it may be due to the pump ap valve not seating properly, an air leak in
the suction pipe or ttings, a blocked suction pipe, or the bottom end of the pipe embedded in mud.
PUMP OPERATION:
High performance can be obtained from these pumps if the engine speed is increased, however, we
do not recommend the pumps be operated over 3600rpm for extended periods, as this may overload
the engine and reduce its working life. Operating the engine at full throttle for extended periods will
shorten engine life and may result in premature failure. For operations such as irrigation or dam and
tank lling, the throttle should be closed to around 3/4 maximum. This should correspond to around
3000rpm maximum.
AVOIDING PUMP DAMAGE:
Pumping water containing sand, dirt or other abrasive materials will result in accelerated pump wear
and seal failure. Damage of this kind is not covered by guarantee.
Pumping water containing chemicals or high concentrations of salt may damage pump components. If
the pump is used for this kind of service, life will be extended by always washing thoroughly with clean
water after use. However, Davey cannot accept responsibility for damage caused by chemicals, salt or
corrosive uids.
Pumping hydrocarbon based liquids, even in diluted form, is likely to cause damage to internal pump
components and such failure is not covered by guarantee.
SPECIAL MODELS - Viton Seal Equipped
These special models, identied by a black handle (when factory tted) or a sticker (when tted in the
eld), have been supplied with Viton
®
seals and elastomers. This is to provide the pump with superior
resistance to common agricultural chemicals. These pumps should still be ushed out with clean water
after use.
STORAGE OF UNIT:
The pump unit should be drained of water and normal engine storage procedure should be followed.
(Run unit until fuel is exhausted, drain and ll sump with fresh oil.) The unit should be stored in a dry
place. Before starting pump after storage it should be checked to make sure that it is free to rotate by
pulling Engine Starter with ignition off.
REMOVAL OF IMPELLER:
Pump impeller is screwed clockwise onto the engine shaft. The impeller assembly is xed together
by a setscrew and can be disassembled in two halves by removing the setscrew or the entire impeller
assembly can be removed.
To remove the entire impeller assembly, unscrew locking setscrew or impeller/s anti-clockwise using a
socket in eye of impeller. If difcult to remove, lock engine crankshaft at recoil starter end.
READ ALL INSTRUCTIONS BEFORE OPERATING PUMP
WARNING: Engine manufacturer’s instructions must be followed to ensure safe
operation of this product and to avoid possible engine damage or reduced engine life.
WARNING: Pump may contain hot liquid under pressure.
NOTE: The pump body should always be full of water when operating,
and must not be allowed to run dry for extended periods. Check that
there is ow through pump at all times when running as insufcient ow
can cause damage not covered by guarantee.
WARNING: In the event of re damage to the Viton
®
elastomers
(“rubber”), consult your Davey dealer regarding safe handling of burnt
Viton
®
components. Burnt Viton
®
emits a dangerous acid, which can
cause serious health effects.
NOTE: When transporting your Davey Portable Self Priming Pump,
water from the casing may leak back past the priming ap. Before
attempting to self prime the pump you may need to check that the
pump casing is full of water.
Illustration 1 Illustration 2 Illustration 3
In accordance with AS 3350.2.41 we are obliged to inform you that this pump is not to
be used by children or inrm persons and must not be used as a toy by children.