Related Manuals for RIKEN EMP-5 Series
Summary of Contents for RIKEN EMP-5 Series
- Page 1 ELECTRIC HYDRAULIC PUMP EMP-5 Series Form: C INSTRUCTION MANUAL RIKEN KIKI CO., LTD.
- Page 3 Introduction Thank you for purchasing our electric hydraulic pump. This instruction manual explains operation procedures, warnings and cautions, and trouble shootings for RIKEN electric Hydraulic Pump Model EMP-5 series. Before operation, both first-time users and experienced users are requested to read this manual carefully, and understand the contents thoroughly.
- Page 4 The high pressure hose is a consumable item. Even if the hose appears to be in good condition, it is possible internal damage such as pin holes or scars have occurred. Riken recommends periodic replacement based upon how frequently hoses have been used combined with specific application conditions, even if the life span has not fully expired.
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Page 5: Table Of Contents
This pump is designed for indoor use. Do not use it in any place that may be exposed to rainwater. The ambient temperature should be between 0 and 40°C. For peripheral hydraulic equipment, use RIKEN‘s genuine product. Use high pressure hoses, high pressure pipes and fittings with a maximum operating pressure of 70 MPa. -
Page 6: Explanation Of Components
2 Explanation of Components (1) EMP-5B 4-M10 depth 25 Discharge port Rc 3/8 Return port Rc 3/8 Oil drain port Rc 3/8 Oil level gauge Air breather Directional control valve EHV-3 Pressure switch DPGS-70 Activation switch Magnet switch Motor Oil tank Name Remarks... - Page 7 1. Oil tank This is a reservoir for the storage of the hydraulic oil for the oil hydraulic circuit. The oil volume can be checked with the oil level gauge. 4. Motor This motor is a power source to drive the hydraulic pump. 5.
- Page 8 (2) EMP-5C 4-M10 depth 25 Discharge port Rc 3/8 Return port Rc 3/8 Oil drain port Rc 3/8 Oil level gauge Air breather Directional control valve EHV-4B Pressure switch DPGS-70 Activation switch Magnetic switch Motor Oil tank Name Remarks 22. Directional control valve (EHV-4B) This is a manual four-way, three-position rotary directional valve.
- Page 9 (3) EMP-5SL 4-M10 depth 25 Discharge port Rc 3/8 Return port Rc 3/8 Oil drain port Rc 3/8 Oil level gauge Air breather Directional control valve ESL-4S-2 Pressure switch DPGS-70 Activation switch Magnet switch Motor Oil tank Name Remarks 22. Directional control valve (ESL-4S normal straight) This is a four-way, two-position spool-type solenoid directional valve which changes the flow direction of the hydraulic oil by exciting the solenoid.
- Page 10 EMP-5SW 4-M10 depth 25 Discharge port Rc 3/8 Return port Rc 3/8 Oil drain port Rc 3/8 Oil level gauge Air breather Pilot operation check valve ECH-4 Directional control valve ESW-4H-2 Pressure switch DPGS-70 Activation switch Magnet switch Motor Oil tank Name Remarks 22.
- Page 11 (5) EMP-5TK 4-M10 depth 25 Discharge port Rc 3/8 Return port Rc 3/8 Oil drain port Rc 3/8 Oil level gauge Air breather Manifold ETK-1 Pressure switch DPGS-70 Activation switch Magnet switch Motor Oil tank Name Remarks 23. Manifold (ETK-1) This is used when the directional control valve is installed externally.
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Page 12: Specifications
Approximate weight 50 kg Working oil ISO VG32 hydraulic fluid ( categorized as a hazardous material of Class 4, type-4 petroleum ) (RIKEN POWER OIL) Life time Some parts need replacement after approximately 500 hours of continuous operation at 70 MPa. -
Page 13: Safety Cautions For Use
Consult RIKEN or RIKEN’s authorized agents if these kinds of unapproved oils are used. Ensure that the oil level is lower than the maximum level line of the oil gauge when adding oil to the oil tank. -
Page 14: Installation Method
5 Installation Method Caution Ensure to screw 4 eye bolts (Hanging bolt) into the application thoroughly before hanging the pump. Be sure to be careful to prevent a hanging tool from causing damage or failure on the application when hanging the pump. Warning Do not hang the oil tank with ropes hooked on the side handles of the tank. -
Page 15: Preparations Before Use
When using a one-touch coupler of the ROC-13 series, align the concave ring portion of the ROC- ROC-13H ROC-13R 13H coupler with the notch. Then, while pulling the ﾘﾝｸﾞ Ring ring, insert the ROC-13H coupler until it touches the ROC-13R coupler and release the ring. The coupler is automatically locked and connected. -
Page 16: Maintenance And Inspection
(B) When using a high-pressure pipe Loosen 1 回 転 If a high-pressure pipe is used, connect an air release one turn 緩 め る Set screw セ ッ ト ビ ス valve (SV-1000) to the tip of the pipe. SV-1000 a) Loosen the set screw of the air release valve by one turn. -
Page 17: Replacing The Hydraulic Oil
Consult RIKEN or RIKEN’s authorized agents if these kinds of unapproved oils are used. Ensure that the oil level is lower than the maximum level line of the oil gauge when adding oil to the oil tank. - Page 18 (3) Operating method This switch stops the motor when the pressure rises to the set pressure, and restarts it automatically when the pressure drops to the set differential pressure (which is factory-set to 5 MPa). When using this feature as a safety mechanism, specify a set pressure 3 to 5 MPa higher than the operating pressure.
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Page 19: Operation Method
9 Operation Method (1) EMP-5B The EMP-5B is equipped with a manual three-way poppet valve (EHV-3). When the lever is tightened, the tank port closes so that the hydraulic oil is discharged. When it is loosened, the tank port opens so that the oil returns to the oil tank. Example of use with a single-acting cylinder (spring return type) Connect the discharge port and cylinder using a high-pressure hose. -
Page 20: Emp-5Sl
(3) EMP-5SL The directional control valve installed in the EMP-5SL is a four-way, two-position solenoid directional valve (ESL-4S). The hydraulic oil discharged from the pump is discharged to Port A when the lever is at the normal position or to Port B when the solenoid (SOL b) is magnetized. -
Page 21: Emp-5Sw
(4) EMP-5SW The directional control valve installed in the EMP-5SW is a four-way, three-position solenoid directional valve (ESW-4H). When the lever is at the center position, the hydraulic oil discharged from the pump returns to the oil tank. The oil is discharged to Port A when the solenoid (SOL a) located at the right seen from the front of the pump is magnetized or to Port B when the left solenoid (SOL b) is magnetized. -
Page 22: Adjusting The High-Pressure Safety Valve
10 Adjusting the High-pressure Safety Valve The high-pressure safety valve is factory-set to 73 MPa. To readjust it, perform the following steps: (1) Stop the motor and loosen the lever of the directional control valve. (2) Remove the hexagon socket head cap screw (92) and turn the adjustment screw (22) inside the oil tank counterclockwise using a screw driver to loosen (3) Disconnect the high pressure hose (or the fitting) -
Page 23: Troubleshooting
11 Troubleshooting Condition Cause Remedy The electric outlet and power Turn off the power immediately to The motor does not plug is incorrectly connected: avoid electric shock. Check whether rotate. the grounding wire, one of the connection is correct. the four wires of the power cable, is mistakenly connected to the power source. - Page 24 Condition Cause Remedy The motor rotates The set pressure for the high- Set the pressure for the high-pressure without increasing the pressure safety valve is lower safety valve to 73 MPa. When using pressure at all or than the operating pressure. the pump at a low pressure, set a properly.
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Page 25: Internal Structural Drawing And Parts List
12 Internal Structural Drawing and Parts List EMP-5B... - Page 26 Parts List (1) for the Motor Pump System EMP-5B Part # Name Quantity Remarks Oil tank Mounting plate Pump body Directional control valve Subplate Flange Cam shaft Piston Thrust bearing NTN: WS81103 Plug Check valve body High-pressure spring set screw Main pump unit, high- Ball holder pressure suction...
- Page 27 Parts List (2) for the Motor Pump System EMP-5B Part # Name Quantity Remarks Mounting plate for magnet switch Panasonic Electric Works: Water-resistant rubber cap WF7415 Solderless terminal Solderless terminal Vinyl cabtyre cable Vinyl cabtyre cable O-ring P7 Hs90 O-ring O-ring P10A O-ring...
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Page 28: Electric Wiring
13 Electric Wiring EMP-5B, EMP-5C, EMP-5SL, EMP-5SW, and EMP-5TK Magnet switch Green Red White Black Black Blue White Power supply Pressure switch Operation Method * The activation switch (SW) is used to start or stop the motor. * The motor stops at the set pressure for the pressure switch (PS) and restarts automatically when the pressure has dropped to the set differential pressure (which is factory-set to 5 MPa). -
Page 29: Handling The High-Pressure Hose
14 Handling the High-pressure Hose * Safety Precautions Use a 70MPa high pressure hose from Riken that bears the brand name "RIKEN." Use the hose with the specified minimum bend radius (R) or larger. Install the hose so that the bend radius is always kept at the specified minimum bend radius (R) or larger even when the hose is supposed to move. - Page 30 The high pressure hose is a consumable item. Even if the hose appears to be in good condition, it is possible internal damage such as pin holes or scar has occurred Riken recommends periodic replacement based upon how frequently hoses have been used combined with specific application conditions, even if the life span has not fully expired.
- Page 31 Before contacting your sales representative or sales agent to request service or repair to your Riken pump, read the contents of this manual thoroughly and recheck the pump. If the problem persists, please contact your sales agent for repair service. Do not disassemble or repair the pump without careful consideration.
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