Enerpac ZE2 Series, Operation And Maintenance Manual

Page 1: ...nd understand this document before use Operation and Maintenance Manual Document Number L4555 Document Revision A Issue Date July 2021 Language English EN ZE2 Series and ZW2 Series Electric Hydraulic Pumps Manual Valve Models Electric Valve Models ...

Page 2: ...VAILABLE LANGUAGES An electronic copy of this document is available online in multiple languages EN English For other languages visit www enerpac com CS Čeština Další jazyky naleznete na adrese www enerpac com DE Deutsch Weitere Sprachen finden Sie unter www enerpac com ES Español Para otros idiomas visite www enerpac com FI Suomi Muunkieliset versiot ovat osoitteessa www enerpac com FR Français P...

Page 3: ...CE 7 3 0 SPECIFICATIONS AND PRODUCT DATA 8 4 0 FEATURES AND COMPONENTS 12 5 0 DESCRIPTION 13 6 0 INSTALLATION AND SETUP 13 7 0 OPERATION 14 8 0 RELIEF VALVE PRESSURE ADJUSTMENT 18 9 0 MAINTENANCE 19 10 0 TROUBLESHOOTING 22 CONTENTS PAGE ...

Page 4: ...ons carefully Follow all recommended safety precautions to avoid personal injury as well as damage to the product and or damage to other property Enerpac cannot be responsible for any damage or injury from unsafe use lack of maintenance or incorrect operation Do not remove warning labels tags or decals In the event that any questions or concerns arise contact Enerpac or a local Enerpac distributor...

Page 5: ... workholding devices are properly positioned before clamping forces are applied Maintain a safe distance from clamping elements and workpiece to avoid personal injury Stay clear of pinch points Keep your hands feet and body away from the clamping area WARNING Use mechanical devices and not fingers to hold a part in place until the clamping hydraulics are activated Do not remove or disable the pres...

Page 6: ...qualified electrician should be consulted if there is any doubt as to whether an outlet box is properly grounded The pump is equipped with an electric power cord and plug specific to its rated single phase voltage No adapter should be used with the plug WARNING WARNING If the pump must be reconnected for use on a different type of electric circuit the reconnection should be made by a qualified ele...

Page 7: ...ch symbol before using the pump Read Instructions Read the product instruction sheet before operating the product and before performing any inspection adjustment maintenance or repair procedures Dangerous Voltages Shock Hazard To avoid the possibility of a dangerous and potentially lethal electrical shock disconnect pump power cord from electrical outlet before opening the pump case Hot Surfaces H...

Page 8: ... Electric Solenoid Valve 10 000 psi 700 bar Single acting hydraulic cylinders or tools Two button remote pendant Rocker type motor power switch on off reset Tandem center w locking feature 108 1 49 0 ZE2408E_ VE43 4 way 3 position Tandem Center Electric Solenoid Valve 10 000 psi 700 bar Double acting hydraulic cylinders or tools Two button remote pendant Rocker type motor power switch on off reset...

Page 9: ...imately 10 650 10 950 psi 725 745 bar by an internal safety relief valve Maximum system pressure of ZW Series pump is limited to approximately 5 500 5 800 psi 374 394 bar by an internal safety relief valve 3 4 Electrical Specifications Model Number Ending In Input Power Specifications Plug Type Motor Speed Motor Output Rating Operating Temp Range Sound Level Lwa Volts AC Phase Hz hp kW F C dBA B 1...

Page 10: ...0 120 160 200 1000 0 2000 3000 4000 5 000 Oil Flow in 3 min Pressure psi 0 0 0 5 1 0 2 5 2 0 1 5 3 0 100 200 300 400 500 600 700 Oil Flow l min Pressure bar 0 0 5 1 0 1 5 2 0 2 5 3 0 50 0 100 150 200 250 300 350 Oil Flow l min Pressure bar ZE2 Series metric ZE2 Series imperial ZW2 Series metric ZW2 Series imperial ...

Page 11: ... 414 J 20 4 518 B 18 8 478 K 3 75 95 C 19 3 491 L 9 00 229 D 9 5 240 Item ft m E 11 0 279 M 20 0 6 0 F 16 1 409 N 6 5 2 0 G 5 7 146 Item Thread Description H 15 5 393 O M8 x 1 25 thread size 0 25 inch 6 0 mm thread depth I 16 9 430 Note External dimensions are typical but may vary slightly from pump to pump M N M ...

Page 12: ...Pressure Switch 4 2 3 6 7 8 9 10 5 12 14 15 9 Hyd Pressure Gauge 10 Oil Filter 11 Carrying Handle 12 Electric Motor 13 Hyd Reservoir 14 Oil Fill Extension Tube 15 Control Valve 16 Remote Pendant Optional equipment Included on pumps equipped with pressure switch Optional on all other pumps ZW2 models only Note Features and components will vary depending on pump model and optional equipment ordered ...

Page 13: ...odels 6 0 INSTALLATION AND SETUP 6 1 Receiving Instructions Visually inspect all components for shipping damage Shipping damage is not covered by warranty If shipping damage is found notify carrier at once The carrier is responsible for all repair and replacement costs resulting from damage in shipment 6 2 Air Flow Install or position the pump to ensure that air flow around the pump is unobstructe...

Page 14: ...imum system pressure is limited by an internal safety relief valve to approximately 10 650 10 950 psi 725 745 bar ZW2 models are rated at a maximum hydraulic working pressure of 5 000 psi 350 bar Maximum system pressure is limited by an internal safety relief valve to approximately 5 500 to 5 800 psi 375 394 bar WARNING Do not attempt to operate the pump at above its rated maximum working pressure...

Page 15: ...rical power has been interrupted and reconnected it will first be necessary to press the reset section of the switch before operating the pump On models equipped with the optional pressure switch the motor will not start unless the system hydraulic pressure has dropped below the pressure setting of the switch Refer to instructions in Section 7 6 for additional information WARNING All users must be...

Page 16: ...inder in a stationary position Pumps with VM43 control valves only Place control valve lever in retract position Press and hold pendant on advance button to start the motor and retract the cylinder NOTICE Pumps with VM32 and VM33 control valves It is not necessary to run the motor when retracting cylinder 7 5 2 ZE2 and ZW2 Series dump pumps equipped with VE32D dump valve See Figure 9 Press and hol...

Page 17: ...rsons are making contact with the cylinder tool or load NOTICE Pressure switch setting must be adjusted by user BEFORE pump is used Refer to instructions in Section 7 6 2 7 6 2 Pressure Switch Setting Adjustment 1 Prepare pump for operation as described in Section 7 2 of this manual 2 Install a metal plug in the valve manifold A port If present also install a metal plug in the manifold B port Pres...

Page 18: ...t circuit breaker is standard on all pumps equipped with a rotary power switch The reset button is located on the top surface of the motor switch enclosure After the circuit breaker trips wait about 1 minute to allow it to cool Then press the reset button Circuit Breaker Reset Button Figure 13 Circuit Breaker Reset Button pumps with rotary power switch only 8 0 RELIEF VALVE PRESSURE ADJUSTMENT All...

Page 19: ...mp reservoir to new unused Enerpac oil Enerpac HF oil is a crisp blue color As a general rule completely drain and clean the reservoir every 250 hours or more frequently if used in dirty environments NOTICE This procedure requires that you remove the pump from the reservoir Work on a clean bench and dispose of used oil according to local regulations 1 Remove the reservoir drain plug and drain all ...

Page 20: ... 2 3 6 7 8 4 5 4 Key 1 Capscrews 2 Copper Gaskets 3 Pump Coverplate Assy 4 Oil Intake Tube 5 Oil Intake Filter 6 Reservoir Gasket 7 Hydraulic Reservoir 8 Oil Drain Plug Figure 17 Reservoir Inspection and Oil Change ...

Page 21: ... all trapped air is removed from the system and operation of cylinder or tool is smooth 9 3 Filter Element For pumps equipped with the return line oil filter optional accessory the filter element should be replaced every 250 hours or more frequently in dirty environments The filter manifold is equipped with a 25 psi 1 7 bar bypass valve to prevent over pressure rupture if filter plugging occurs Re...

Page 22: ...button Models with rocker power switch Wait about 1 minute for circuit breaker to cool and self reset Then press bottom section of rocker switch to reset pump electrical circuits d Low voltage Turn off other electric loads Use heavier gauge extension cord e Electrical problem See authorized service center f Motor or pump element jammed See authorized service center 2 Pendant does not function a Po...

Page 23: ... center c Non load holding valve used See authorized service center 7 Single acting cylinder will not return a No load on a load return cylinder Add load b Return flow restricted or blocked Check couplers for full engagement c Locking valve used VE33 and VE43 control valves only Run motor while retracting d Valve malfunction See authorized service center e Cylinder return spring broken Repair or r...

Page 24: ... 2021 Enerpac Tool Group All Rights Reserved www enerpac com Enerpac Tool Group Corp N86 W12500 Westbrook Crossing Menomonee Falls WI 53051 USA ...