SPACER 8J6263 - Caterpillar

The SPS343 Skid Mounted Pumper is a pumping unit which is designed for applications that require high horsepower. The pumping unit is mounted to a skid. A 3512B engine provides the power for the pumping unit. The triplex 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. This will depend on the rate and the pressure requirements for the application. The pumping unit is equipped with a Universal Remote Control Console (URCC). 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. 3512B Engine
The engine is a Caterpillar 3512B that is equipped with the following features:
Two single-stage, dry air cleaners with service indicators
Air starting system
Air inlet shutoff
Air compressor that is rated at 10 cfm
Electronic control module
Fuel/water separators with rock guards on bottom bowls
Oil coolers
Water cooled exhaust manifoldsTransmission
Refer to the "OEM Service Manual" for additional information.Triplex Pump
Refer to the "OEM Service Manual" for additional information.Lubrication Systems
Power End Lubrication
The power end lubrication system provides lubrication for the triplex pump's crankshaft and the triplex pump's 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 227 L (60 US gal) oil reservoir is located under the deck driveline near the center of the skid. 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. A plate type heat exchanger cools the lubrication system. A thermostatic valve is located in the hydraulic line immediately after the pump. The thermostatic valve routes oil to the plate type heat exchanger when the oil temperature reaches 60 °C (140 °F).Fluid End Lubrication
The fluid end lubrication system provides lubrication for the packing for the triplex 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, 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
Carbon steel catch tankThe carbon 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 pistons of the triplex pump. Oil drains into a carbon steel catch tank that is located on the right rear of the skid. The carbon steel catch tank should be drained regularly. For information on the proper lubricant to use,