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5.4  Hydraulic Reservoir

For most shipping destinations, the hydraulic reservoir is pre-

filled at the factory with Enerpac HF hydraulic oil.
However, as a precaution, always check the oil level before 

starting the pump. The oil level indicator is located on the pump 

front panel. Refer to Figure 8 for oil level diagram.
Verify that the oil level is up to the FULL mark. Refer to Section 

11.2 for oil level checking procedure. If the oil level is low, add 

additional oil as required as described in Section 11.3.

5.5  Hydraulic Reservoir Air Breather/Filter

The hydraulic reservoir air breather is located just above the 

oil level indicator. It is composed of a porous stainless steel 

filter disc and a pre-loaded two-way vent. The vent allows air 

exchange while maintaining a small positive pressure or vacuum 

in the reservoir.
Air breather components are factory pre-installed and require no 

user assembly or adjustment.
An absorbent pad is affixed to the front of the air breather to help 

prevent oil leakage during shipment. Remove this absorbent pad 

before using the pump. Wipe off any residual oil with a clean rag.
Note that a small amount of oil may collect on the air breather 

surface while the pump is being transported. This is normal. 

However, to prevent possible oil leakage through the air breather, 

avoid tilting the pump forward while the pump is being operated, 

transported or stored.

5.6  Power Requirements

E-Series pumps are available in a choice of three different 

electrical power configurations:
•  Models EP3504TB and EP3504TB-M are designed to operate 

at a nominal voltage of 100-120 VAC. These units contain a 

USA style NEMA 5-15 power plug.

•  Models EP3504TE and EP3504TE-M are designed to operate 

at a nominal voltage of 200-250 VAC. These units contain a 

USA style NEMA 6-15 power plug.

•  Models EP3504TI and EP3504TI-M are designed to operate 

at a nominal 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 power supply is the proper voltage. Refer to the pump 

data plate. Also refer to Section 1.3 for important electrical safety 

information and precautions.

  WARNING

Failure to follow the electrical safety precautions contained 

in Section 1.3 of this manual could result in electric shock. 

Death or serious personal injury could occur.

6.0  FEATURES AND CONTROLS

6.1  Carrying Handle

Always use the carrying handle when transporting the pump 

to its desired location or when it is necessary to reposition the 

pump while it is in use.
The top of the carrying handle contains a storage pocket for the 

pendant. The base of the carrying handle contains a storage area 

for the pendant cable.
A fault code reference diagram is located inside the pendant 

storage pocket.

 

NOTICE

To prevent possible damage, never attempt to carry 

or reposition the pump by dragging it by the hydraulic  hoses, 

power cord or pendant cable. Damage to the pump, pendant 

and/or hoses may result.

6.2  Ventilation and Cooling System

Air intake and exhaust vents are located on the inside edges 

of the pump front and rear covers. These vents function with 

the pump's internal fan-forced heat exchanger to help maintain 

allowable operating temperatures.
Cooling fins are also located on the pump sides.
Before start-up, check that the cooling fins and vents are not 

covered by dirt or other obstructions.

6.3  Pendant 

The pump includes a three-button corded pendant that operates 

pump functions. It is connected to the pump with a 20 ft [6 m] 

cable.
A multi-color LED indicator light communicates pump status. 

See Figure 4. Pendant operation is described in detail in Sections 

8.0 through 10.0 of this manual.

1

2

3

4

Figure 4, Pendant Controls

1.   LED Indicator Light 

(red, green or yellow 

depending on pump 

function and status)

2.  Yellow Button

3.  Green Button

4.  Red Button

Note:

 Refer to Figure 11 

for quick reference guide.

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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