BATTERY-NMH 2850905 - Caterpillar

The SPF743 Trailer Mounted Pumper is a pumping unit which is designed for applications that require high horsepower. The pumping unit is mounted to the trailer. Power for the pumping unit will be provided by the 3512E engine. The quintuplex pump delivers fracturing fluids to the well at a high pressure and at a high rate. The fluid ends for the pumping unit may vary depending on the rate and the pressure requirements for the application. The pumping unit is equipped with a Universal Remote Control Console. The URCC is used to control the pumping unit. The URCC can be used up to a distance of 38 m (125 ft). From this console, gear selection, throttle control, and emergency shutdown are performed.Transmission
Refer to the "OEM Service Manual" for additional information.Quintuplex Pump
Refer to the "OEM Service Manual" for additional information.Lubrication Systems
Power End Lubrication
The power end lubrication system provides lubrication for the quintuplex pump crankshaft and the quintuplex pump crossheads. The power end lubrication system is driven by a hydraulic pump that is mounted on the auxiliary drive for the transmission. The power end lubrication system is active when the deck engine is operating. A 416.4 L (110 US gal) oil reservoir is located under the deck driveline near the center of the trailer. The oil reservoir supplies oil to the hydraulic system. The reservoir should be filled with lubricating oil and the oil reservoir should be kept full. An oil cooler inside the deck radiator cools the lubrication system. A thermostatic valve is now located in the hydraulic line immediately down stream from the power end and lube filter. The thermostatic valve routes oil to the cooler when the oil temperature reaches 60 °C (140 °F).Overpressure relief valves are at the thermostatic valve outlet to the cooler inlet (set to 160 psi) and at the supply pressure connection on the rear face of the stimulation pump.Fluid End Lubrication
The fluid end lubrication system provides lubrication for the packing for the quintuplex pump. The lubrication system is an air over the top of oil type. The system is driven by air pressure. The lubrication reservoir is an ASME coded carbon steel pressure vessel that is registered with the National Board. The lubrication reservoir has a 60.5 L (16 US gal) capacity with 101.6 mm (4 inch) filler cap. The reservoir also has, a level indicator, and a 19.05 mm (0.75 inch) drain valve.The lubrication system includes the following components:
Solenoid valve
Pressure regulator
Flow divider valve
Flow control valve
Check valves
Relief valve
Liquid filled pressure gauge
Steel catch tankThe steel catch tank has a drain valve on the bottom of the tank. The lube system is off when the driveline brake is on. The oil drain is located under the quintuplex pump pistons. Oil drains into a steel catch tank that is located between the rear tires on the curb side of the trailer. The steel catch tank should be drained regularly. For information on the proper lubricant to use, see this Operation and Maintenance Manual, "Plate Locations