PUMP GP-PISTON 2029731 - Caterpillar

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Schematic for the Front Water Spray System (1) Pump (2) Strainer (3) Shutoff valve (4) Recirculation valve (5) Water tank (6) Drain valve (7) Spray bar
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Drum (5) Water tank (7) Spray barThe front water tank is located above the drum. The front water tank holds water for use by the front spray system.
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Left Side of the Drum (1) Pump (2) Strainer (3) Shutoff valve (4) Recirculation valve
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Water Spray Pump Group (1) Pump (2) Strainer (3) Shutoff valve (4) Recirculation valveThe water spray pump group is located to the left of the drum. The water spray pump group draws water from the tank (5). Water enters the pump group through the shutoff valve (3). The shutoff valve (3) prevents leakage when the system is not in operation.From the valve (3), water is drawn through the strainer (2) and into the pump (1). The pump (1) is a self-priming diaphragm pump. The pump (1) contains a pressure switch in order to limit the output pressure. Water flows from the pump (1) to the spray bar (7). Water flows out of nozzles on the spray bar (7) and onto the drum. The nozzles and the spray bar (7) can be adjusted in order to evenly wet the drum.The pump (1) provides excess water to the spray bar (7). The surplus flow passes through the recirculation valve (4). The recirculation valve (4) maintains pressure at the spray bar.
Illustration 5 g00697175
Underside of the Front Bumper (6) Drain valveA drain valve (6) is located under the front bumper. The drain valve (6) is used to empty the tank (5).