Portable Self Priming Pumps Installation and Operating Instructions
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: To prime the pump initially, it is necessary to fill the pump body with water before starting the engine. The priming plug and drain plug both have “bayonet” style fitment, with a safety release mechanism. When correctly installed the plug handles will be as shown in illustration one below. To remove the plug, first 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).
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