AR Series Variable Displacement Piston Pumps. [Comparison of AR16 with A16 ] A16,32 Design 188. AR16,22 Design 130. Ratio of Mass (AR16/A16) 74%

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1 PISTON PUMPS EIC--11- Features Smaller in Size and Lighter in Mass s indicated in the dimensional comparison presented below, the R1 is smaller than the 1(3 design). lso, the mass of R1 is substantially lighter than the 1. Low Noise The noise level of R1 has been reduced by 1- db () at full flow and full cut-off compared with that of the excellent 1 quiet pump. [Comparison of R1 with 1 ] Fully Extended 3.5 1,3 Design R Series Variable DIMENSIONS IN MILLIMETRES Fully Extended R1, Design 13 Model R1 1 pprox. Mass (Flange Mtg.) 1.1 kg 1.5 kg Ratio of Mass (R1/1) 7% 1

2 Instructions Hydraulic Fluids. Use petroleum base oil such as anti-wear type hydraulic oils or R & O ( Rust and oxidation inhibitor ) type hydraulic oils (ISO VG 3 or ) with a viscosity range of to cst at temperature of - C both to be satisfied. Control of contamination. Much care should be taken to maintain control over contamination of the operating oil which can otherwise lead to breakdown and shorten the life of the unit. Please maintain the degree of contamination within NS Grade 1. The suction port must be equipped with at least a 1 µm (15mesh) reservoir type filter and the return line must have a line type filter of under 1µm. Mounting When installing the pump the filling port should be positioned upwards. lignment of Shaft. Employ a flexible coupling whenever possible, and avoid any stress from bending thrust. Maximum permissible misalignment is less than.1 mm TIR and maximum permissible misangularity is less than.. Suction. Permissible suction pressure at inlet port of the pump is between -.1 and +.5 Kgf/cm (-15 mm Hg~+.5 Kgf/cm ). For piping to the suction port, use pipes of the same diameter as that of the specified pipe flange. Make sure that the height of the pump inlet port is within one meter from the oil level in the reservoir. Hints on Piping. When using steel piping for the suction of discharge ports, excessive load from the piping on the pump generates excessive noise. Whenever there is fear of excessive load, please use rubber hoses. Suction Piping. In case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line. Drain Piping. Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal of less than 1 Kgf/ cm and surge pressure of less than 5 Kgf/cm. Length of piping should be less than 1m, and the pipe end should be submerged in oil. In case R1 and R pumps, a screw-in torque of fitting is.- 5. Kgf-m. Do not apply bending and thrust to the fitting. [Recommended Drain Piping Size] (Single Pump) Model Number R1, R Bleeding ir. It may be necessary to bleed air from pump case and outlet line to remove causes of vibration. n air bleed valve (Model No. ST1- -1) is recommended for this purpose. Starting. PISTON PUMPS Fix drain pipe for each side of the pump. Fitting Size 3/" (Inside Dia..5mm or more) Before starting, first time fill the pump case with clean operating oil through the fill port. In order to avoid air blockage, when first starting, adjust the control valves so, that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load. [Volume of Pre-Fill Oil Required] Inside Dia. of Pipe 1 mm Model Number Volume cm 3 R1, R 3 Setting Discharge and Delivery. t the time of Despatch, the unit has been preset to the maximum delivery and minimum discharge pressure. djust the preset delivery and pressure to meet your system requirements. djustment of Discharge Turning the adjustment screw clockwise, increases pressure. [ adjusted by each one turn of the pressure adjustment screw] Model Numbers djustment Kgf/cm R1/R-FR-1-B 9. R1/R-FR-1-C 55.1 djustment of Delivery Turning the delivery adjustment screw clockwise, decreases pressure. Lock the screw after adjustment. [The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw] Model Numbers djustable volume with each full turn of the adjustment screw Minimum adjustable flow cm 3 /rev. R1 1.5 R.1.5

3 Specifications Model Numbers -Single Pump, Compensator Type Geometric Displacement cm 3 /rev. R1-FR1-15. R-FR1 -. Operating Pres. Kgf/cm Shaft Speed Range r/min. Rated Intermittent *1 Maximum Minimum Mass Kg *1 Whenever setting pressure, make sure that the full cut-off never exceeds the permissible maximum pressure. Model Number Designation R1 -F R 1 B S - Pres. dj. Direction Mounting Control Type Range Port Position of Rotation Kgf/cm Series Number R1 (15. cm 3 /rev.) R (. cm 3 /rev.) F: Flange Mtg. (Viewed from Shaft End) R: Clockwise (Normal) 1: Compensator Type B: 1. ~ 71. C:. ~ 13 M None: xial Port S: Side Port Graphic Symbol Design Number R Series Variable Test Circuit and Conditions Result Of Measurement Circuit t1 t Ps SOL Hydraulic high pressure hose 3/" x 1mm P1 M O Conditions Drive Speed : 15 r/min. Hydraulic Fluid : ISO VG3 Oil Oil Temperature : 5 C [Viscosity mm /s (cst)].. Models SOL OFF P 1 Kgf/cm Time SOL ON Response time ms t 1 t SOL OFF Overshoot Ps Kgf/cm R R

4 Typical Performance Characteristics of Type R1 Oil Viscosity cst [ISO VG 3, 5 C] Performance Characteristic Curve Efficiency % 1 3 Volumetric efficiency 1 Overall efficiency P = 1 P = 1 P = 1 P = P = P = P = P = 7 P = Power Noise Level [One meter horizontally away from pump head cover] Power r/min. Drain. db() Noise Level Drain 1..5

5 Typical Performance Characteristics of Type R Oil Viscosity cst [ISO VG 3, 5 C] Performance Characteristic Curve Efficiency % Volumetric efficiency Power 1 Overall efficiency Noise Level P = P = 1 P = 1 P = 1 P = P = P = P = P = 1 [One meter horizontally away from pump head cover] R Series Variable Power Drain r/min. db() Noise Level Drain

6 xial Port Type R 1-FR1 - R -FR1 - Discharge Port Rc 3/ M1 x 17 Deep 7. Suction Port 19 Dia Lock nut Flow dj. Screw 1 Dec Filling Port *1 Hex Soc. Plug furnished Fully extended Drain Port Thd. * Rc 3/ Dia Dia Fully extended 15.5 Fully extended Dia. Lock nut adj. screw 11 7 Inc. *1 Install the pump so that the Filling port is at the top. * screw-in torque of fitting is. 5. Kgf-m. Do not apply bending and thrust torque to the fitting. DIMENSIONS IN MILLIMETRES Side Port Type R 1-FR1 - R -FR1 - M1 x 17 Deep Drain Port Rc 3/. 7. Suction Port 19 Dia. 7 IN OUT 7 Discharge Port Rc 3/ 15

7 Pipe Flange Kit for Suction Port 11 Dia. x Thru. 7.. "C" Thd. F "D" Soc. Hd. Cap Screw ( Pcs.) O-Ring SO-NB-G3 F5--B Dia. 15 "D" O-Ring SO-NB-G3 Soc. Hd. Cap Screw ( Pcs.) R Series Variable Kit Numbers "C" Thd. D mm Soc. Hd. Cap Screw pprox. Mass Kg F Rc 3/ 15 M1 x 5Lg..5 F5--B M1 x 3Lg Dia. x Thru Spotface x1. Deep. F / BSP.F Thd O-Ring SO-NB-G M1 Thd. x 35 Lg. Soc. Hd. Cap 1. Mounting Bracket Kits Mounting bracket available on separate order. Pump Model Numbers Mtg. Bracket Kit Numbers pprox. Mass Kg R1/R-FR1 LP-1-1. Note:The Mounting bracket kit consists of a mounting bracket, hex. bolts and plain washers. 17 Mtg. Bracket DIMENSIONS IN MILLIMETRES Mtg. Bracket Kit LP-1-1 pprox. Mass...5 Kg. M1 x 5 Lg. Hex. Bolt 1 Dia. x Thru. Dia. Spotface Places 15.5 Plain washer ( Pcs.)