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4.0  PRODUCT DESCRIPTION

4.1  Introduction

The Enerpac E-Series electric torque wrench pump is designed 

for use with hydraulic torque wrenches rated at 10,000 psi [700 

bar] maximum operating pressure.
Features include:
•  User selectable auto-cycle or manual mode operation.
•  Remote control 3-button 

Smart IQ

 pendant with LED status 

indicator light.

•  High efficiency permanent magnet direct drive motor.
•  Durable and lightweight all aluminum chassis construction.
•  Two-stage pump design for fast system fills and controlled 

flow at high pressures.

•  Six discreet pump elements provide even flow and smooth 

operation.

•  Integrated fan forced heat exchanger and built-in thermal 

protection.

•  Built-in user and service center diagnostic features.

Refer to Figure 2 for a diagram of the pump's major features and 

components.

4.2  Conformance to National & International Standards

Enerpac declares that the E-Series pumps have 

been tested and conform to applicable standards 

and are approved to carry the CE, TUV C and US, 

and FCC certification marks. An EU declaration of conformity is 

included in the shipment.

4.3  Electromagnetic Compatibility (EMC) 

Enerpac E-Series pumps have been tested and certified to 

conform to CE-EMC Emission and Immunity standards and to 

FCC emission standards.

5.0  PREPARATION FOR USE

5.1  Important 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.
Note that a small amount of residual hydraulic oil may be present 

within the packaging from product final assembly and testing 

procedures. In addition, a small amount of hydraulic oil may 

leak from the reservoir air breather (covered by a removable 

absorbent pad) during shipping. A minimal amount of oil inside 

the shipment should be considered as normal and not as a cause 

for concern.

5.2  Connecting Hydraulic Hoses

Couplers must be polarized per Figure 3 for correct wrench 

operation. All hoses, fittings and components used with the 

pump must be rated for at least 10,000 psi [700 bar] operation.

  WARNING  Avoid kinking or tightly bending hoses. Do not 

exceed the hose manufacturer's stated minimum bend 

radius. If a hose becomes kinked or otherwise damaged, it 

must be replaced. Damaged hoses may rupture at high 

pressure. Serious personal injury may result.

Make hydraulic connections to pump couplers “A” and “B” as 

described in the following steps. Refer to Figure 3.
1.  To prevent the pump from starting, be sure that the pump 

power cord is disconnected from the AC power source.

2.  Verify that pump hydraulic pressure gauge indicates zero 

(0) psi/bar. If any pressure is indicated, relieve pressure as 

described in Section 10.0 of this manual.

 

NOTICE

 The pump is supplied with coupler halves pre-installed 

in the pump hydraulic ports. These coupler halves are compatible 

with Enerpac THQ Series torque wrench hoses.
3.  Remove dust caps from pump couplers “A” and “B”.
4.  Connect the hose from the advance side of the torque 

wrench to pump coupler “A”. Hand tighten the collar on the 

female coupler until it is fully threaded onto the male collar.

5.  Connect the hose from the retract side of the torque wrench 

to pump coupler “B”. Hand tighten the collar on the female 

coupler until it is fully threaded onto the male collar.

  WARNING

At each hose connection, be certain that the male and female 

coupler halves are engaged and fully threaded together.  

Failure to follow this precaution may result in high pressure 

oil leakage and/or detachment of the hose under pressure. 

Skin penetration and serious personal injury could occur.

6.  Ensure couplers are fully engaged and tightened before 

operating. Partial coupler engagement will prevent proper 

wrench operation.

 

NOTICE

 When a torque wrench is first connected to the pump, 

air may be trapped in the hydraulic circuit. Refer to Section 7.3 

for air removal procedure.

5.3  Disconnecting Hydraulic Hoses

Disconnect hydraulic hoses after use as described in the 

following steps:
1.  Be sure the torque wrench is fully retracted.
2.  Verify that pump hydraulic pressure gauge indicates 

zero (0) psi/bar. If any pressure is indicated, relieve 

pressure as described in Section 10.0 of this manual.

3.  Disconnect the pump AC power cord from the electrical 

outlet.

4.  At pump couplers “A” and “B”, loosen the threaded collars 

on the female couplers. Disconnect hoses from pump.

5.  To prevent contamination, install dust covers over pump 

and hose couplers.

B

A

Torque Wrench

Advance

Figure 3, Hydraulic Hose Connections (typical)

Retract

Pump

Summary of Contents for E-Pulse E Series

Page 1: ...9 Rev B 07 19 To protect your warranty use only ENERPAC hydraulic oil Models EP3504TB and EP3504TB M EP3504TI and EP3504TI M EP3504TE and EP3504TE M E Series Electric Torque Wrench Pump Instruction Sh...

Page 2: ...necting Hydraulic Hoses 9 5 3 Disconnecting Hydraulic Hoses 9 5 4 Hydraulic Reservoir 10 5 5 Hydraulic Reservoir Air Breather Filter 10 6 0 FEATURES AND CONTROLS 10 6 1 Carrying Handle 10 6 2 Ventilat...

Page 3: ...e pressurized hydraulic hoses Escaping oil under pressure can penetrate the skin If oil is injected under the skin see a doctor immediately Do not pressurize disconnected couplers The system operating...

Page 4: ...h the cord The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances Improper connection of the pump grounding condu...

Page 5: ...ifications on pump data plate Use of incorrect outlet could damage the motor 1 6 IP Ratings Ingress Protection IEC standard 60529 The pump IP rating is IP54 The pendant IP rating is IP67 Outdoor use i...

Page 6: ...i bar in min l min in min l min in min l min in min l min RPM EP3504T_ 2 Stage 10 000 700 220 3 61 130 2 13 58 0 95 32 0 52 600 2400 EP3504T_ M 2 Stage 10 000 700 220 3 61 130 2 13 58 0 95 32 0 52 600...

Page 7: ...SSURE 0 100 300 200 400 600 500 700 0 0 5 1 0 1 5 2 5 2 0 3 5 3 0 4 0 Oil flow l min Pressure bar METRIC Models EP3504TI EP3504TI M EP3504TE and EP3504TE M 240V FLOW vs PRESSURE 0 50 100 150 200 250 0...

Page 8: ...stment Locknut 8 Hyd Reservoir Air Breather and Filter 9 Hyd Reservoir Oil Drain Fill Plug 10 Oil Level indicator 11 Front Cover Panel 12 Cooling Fins 13A Cooling Vent exhaust 13B Cooling Vents intake...

Page 9: ...bending hoses Do not exceed the hose manufacturer s stated minimum bend radius If a hose becomes kinked or otherwise damaged it must be replaced Damaged hoses may rupture at high pressure Serious pers...

Page 10: ...nal voltage of 200 250 VAC These units contain a European style Schuko power plug All configurations are single phase 50 60 Hz Before connecting electrical power to the pump be certain that the AC pow...

Page 11: ...ing Positions NOT ALLOWED 7 3 Air Removal When the torque wrench is connected for the first time air may be trapped in the wrench and hoses To ensure smooth safe operation run the torque wrench throug...

Page 12: ...he desired pressure 7 Release the green pendant button 8 Recheck the final pressure setting by holding the green pendant button and pressurizing the system 9 If the final pressure setting is not at th...

Page 13: ...stored pressure is recorded NOTICE The pump will save the stored pressure within the available range of 1 000 to 10 000 psi 70 to 700 bar even after long periods of non use 9 2 Torquing Manual Mode 1...

Page 14: ...4 Figure 8 Oil Level Indicator FULL ADD OIL See figures 9 and 10 OVERFILLED 11 3 Adding Oil 1 Be sure that hydraulic torque wrench is fully retracted 2 Be certain that pump is off and that all hydrau...

Page 15: ...applicable laws and regulations 7 Remove the oil drain fill plug Allow all used oil to drain completely from the reservoir into the pan or container It may be necessary to tilt the pump slightly forw...

Page 16: ...pump side surfaces to remove any accumulated dust or dirt Remove any dust or dirt from the pump front and rear covers and the pump top and bottom surfaces Be sure that all four air vents are unobstru...

Page 17: ...ration is smooth Refer to Section 7 3 b External hydraulic leak Tighten connections Replace damaged components c Internal leakage in valve Contact Enerpac Authorized Service Center d Internal damage t...

Page 18: ...pproximately 3 seconds after power has been reconnected This indicates that the pump is in normal operational mode b Pump electrical and or mechanical problems Contact Enerpac Authorized Service Cente...

Page 19: ...lowed by a 1 second pause Sequence repeats until pump cools to an acceptable temperature Motor electrical or internal ambient temperature too high Allow time for pump temperature to decrease as requir...

Page 20: ...and or in a sequence Refer to sections 8 0 and 9 0 of this manual for detailed instructions Pump must be connected to AC power Pendant buttons are not functional when AC power is disconnected Activat...

Page 21: ...Notes 21...

Page 22: ...Notes 22...

Page 23: ...Notes 23...

Page 24: ...http www enerpac com...

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