Davey PORTABLE SELF PRIMING PUMPS Firefighter 5 Series - Manual (Page 2)

PUMP LOCATION:
For most efficient 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 fittings 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 fitted 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 (11/2”) I.D. for up to 6.5hp Firefighter ® models, 50mm (2”) I.D. for
G5006 and 9hp & 13hp Firefighter ® models and 80mm (3”) I.D. for G8016 Firefighter ® models.
A strainer should always be fitted 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 Firefighter ®
units are capable of delivering pressures up to 650kPa (93psi). Two stage Firefighter ® Plus units
are capable of pressures up to 1135kPa (165psi).
PUMP PRIMINg:
The priming plug and drain plug both have “bayonet” style fitment, with a safety release
mechanism. To insert the plug, ensure the handles on the plug are in line with the engine shaft or
pointing towards the engine for the priming plug (figure one) and vertical for the drain plug.
PUMP AND PIPEWORk
• Run the pump every week or so during the fire season to ensure it and associated pipework
etc is in good working order. This will also help turnover the fuel and make sure the
lubricating oil is circulated around the engine.
• Ensure the water source is free of leaves and sticks etc which may be block inlet strainers
and obstruct the water flow to the pump.
• Check for pipe leaks and the correct operation of all valves connecting the pump to the
water source and to the discharges.
• Air leaks on the suction line are the number one cause of pump problems, make sure all
rubber gaskets and seals are in good order.
BE PREPARED!
Your pump and pipework is an important part of fire protection, but so are the other things you
must do to be ready.
Davey strongly encourage you to work through your fire plan and make sure it’s able to work
under a realistic assessment of the worst possible situation. Fire only really understands the
worst possible situation.
SPECIAL MODELS – viton Seal Equipped
These special models, identified by a black handle (when factory fitted) or a sticker (when fitted
in the field), 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 flushed
out with clean water after use.
SPECIAL MODELS – Fuel Stop Solenoid (Yanmar diesel)
The fuel stop solenoid is an optional extra that is available on selected Yanmar diesel engines at
the time of purchase. Controlled via a key switch, it starts and stops the flow of fuel to the engine
to start and stop the Firefighter ® pump. This allows the Firefighter ® pump to be installed on a tray-
back vehicle and have the convenience of being controlled from inside the cabin of the vehicle.
The switch has three positions, off (O), ignition (I) and crank (II). In the ignition position, battery
power is supplied to the solenoid and the crank position starts the engine. To stop the engine,
turn the switch to the off position.
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 fill 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 fixed
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 difficult to remove, lock engine crankshaft at recoil starter end.
WARNINg: In the event of fire 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: 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 flow through
pump at all times when running as insufficient flow can cause damage not
covered by guarantee.
WARNINg: Pump may contain hot liquid under pressure.
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.
In accordance with AS 3350.2.41 we are obliged to inform you that this pump is not to
be used by children or infirm persons and must not be used as a toy by children.
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Figure 1