Manual PumpsBattery PumpsSMPSeries liOlEectric PumpsSpecaPumpsl il CooerliHydraucPumpscat-No.78E since2017Manual PumpsManual Pumps● Be sure to read the operation manual for the product thoroughly before use to obtain a good understanding of the product.● Riken products must be not 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.● Do not modify the product. Any modification that is not recommended by Riken could lead to an accident.● When using the models shown below, be sure to open the air valve before use. Using the pump with the air valve closed may increase the pressure inside the oil tank when the hydraulic oil returns, damaging the tank and leading to an accident. [All models of manual (foot) pumps (except the P-3 and P-18) and all models of the SMP series]● If an amount of hydraulic oil that is outside of the rated range returns to the oil tank, the pressure inside the tank may increase damaging the tank and leading to an accident.● The maximum operating pressure for the product is 70 MPa. Because high-pressure safety valves are used as safety equipment, whose maximum operating pressure is set to 73 MPa before shipment, do not change the setting to more than 73 MPa. Otherwise, the equipment may be damaged causing a serious accident. ● If using hydraulic equipment whose maximum operating pressure is less than 70 MPa, for the high-pressure safety valve, set the operating pressure to be used for the application before use. Otherwise, the equipment may be damaged or scattered matter may be produced. If the maximum operating pressure is set to 30 MPa or less, some pumps need parts replacement. Please contact us for further information.● The standard maximum operating pressure of the Riken manual hydraulic pumps is 70 MPa.● A wide variety of models is available to meet the required oil volume or operating speed of the cylinder.● The two-stage speed control, by which the pressure automatically switches between high and low speed modes, is provided (except some models), offering high work efficiency. ● These pumps include all necessary valves such as a safety valve, air valve, and operating valve, and also incorporate an oil tank. Accordingly, they are compact, lightweight, and easy to handle.● We can also manufacture special pumps such as low-pressure manual pumps, a pump combined with a cylinder. Please contact us for further information.Select pumps whose effective oil volume is largerthan the total oil volumes required for cylinders used.In particular, caution is required when several cylin-ders are operated by a single pump.Do not refill the pump with hydraulic oil while the cylin-der is extended. When refilling the tank, use the at-tached oil level gauge to check whether the oil volumeis appropriate. If oil is excessively refilled, the oil mayleak from the air valve.● Be sure to remove air from inside the pipe before applying pressure. If air remains, pressure may fluctuate or not be raised.● Pressure gauges are optional. (See pages 161 and 162.) * For manual pumps for single-acting cylinders, a pressure gauge mounting bracket is also optional. (See page 163.) * For manual pumps for double-acting cylinders, only the P-1D (DCB), P-4D (DCB), and P-8D (DCB) include a pres- sure gauge mounting bracket.● Hydraulic oil Pumps are delivered filled with hydraulic oil. When refilling hydraulic oil, use only Riken’s Genuine Power Oil (see page 175) or an ISO VG32 general hydraulic oil (see page 224). Contact us if using other oil that is not general hydraulic one.Be sure to open the air valve before use. Using thepump with the air valve closed may evacuate theinside of the tank, causing suction failure or damage tothe tank, etc.Normally, manual pumps are usedhorizontally. If they are used vertical-ly (with the outlet port facing down-ward), select the P-16B-V, P-1B-V,or P-4-V.If the P-16B, P-1B, or P-4, which isvertically used, an additional part isneeded.58ClosedOpen
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