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epyt egats-enOuardyHepyt tt lilO l lispmuPspmuP yre launaMegats-owTaBseireSPMSspmuP cirtceEspmuPacepSreooCilspmuPccat-No.78E since2017Maximum operating Modelpressure MPaMP-4EMP-6MP-12HMP-15HMP-17HMP-20HRP1.5RP2.5RP5.0RP10HighHighLowHighLowHighLowHighLowHighLowHighLowSMP-30SMP-40EMP-50.4L/min0.58L/min1.5L/min2.5L/min701.5L/min2.5L/min701.5701.57057087087060.2L/min2.0L/min0.4L/min0.4L/min0.9L/min1.5L/min2.5L/minDischarge volumeL/min (50 Hz) 5.0L/min5.0L/min3.0L/min4.0L/min6.5L/min10.0L/min10.0L/min8.5L/minPage7981838587899368 to 7480828486SMP/Battery Pumps/Special PumpsDischarge Volume List by Model*The above values are available at 50 Hz.● Be sure to read the operation manual for the product thoroughly before use to obtain a good understanding of the product.● Riken products must not be used where serious damage could result if the hydraulic oil leaks. In particular, they must not be used near fire.　Otherwise, injury or fire could result.● Replace the hydraulic oil immediately in the following cases: dust enters the oil, a strange odor is emitted, the color turns milky white due to　entry of water, the color turns blackish brown due to deterioration. If the oil is continuously used in these situations, the equipment may be　damaged resulting in poor performance. Even if there are no problems, the oil must be replaced once a year generally.● If the pump is used continuously, pay attention to the rise in oil temperature. In addition, the product must be used at an ambient tempera-　ture of 0 to 40 °C.● The oil temperature must be kept between 5 and 60 °C. If the oil temperature exceeds the proper range, the equipment will be damaged and　need repair (replacement of parts or the hydraulic fluid) at an early stage, resulting in poor performance. Use an optional oil cooler depend-　ing on the operating conditions.● If the pump is used continuously, set the normal pressure to at most 70 % of the maximum operating pressure of the pump. Otherwise, the　pump may be damaged and need repair at an early stage.● Use ISO VG 32 hydraulic oil for the MP-15 (3.7 kW) and smaller pumps, and ISO VG 46 hydraulic oil for the MP-17 (7.5 kW) and larger　ones. If a hydraulic oil with a different viscosity is used, the equipment may be damaged.● Contact us if using other oil that is not general hydraulic one (see page 224). Otherwise replacement of packing, etc. may be needed.● For SW(-PA), SB (-PA), and S (-PA) models of direction-control valves, one solenoid must be deenergized before the other is energized.　Do not allow the two solenoids to be energized simultaneously. Otherwise, device failure could result.● Do not supply power continuously to the solenoids of SL, SW (-PA), SB (-PA), and S (-PA) direction-control valves for one minute or longer　while pressure is applied. Otherwise, sticking of the spools will occur due to hydraulic lock, preventing switching. ● For SL, SW (-PA), SB (-PA), and S (-PA) models of direction-control valves, set the solenoid switching frequency to 20 cycles/min or less.　(One cycle means to turn ON/OFF the left and right solenoid separately.) Otherwise, the equipment may also be damaged resulting in poor　performance.67