10
5.3 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 12 for oil level diagram.
Verify that the oil level is up to the FULL mark. If the oil level is
low, add additional oil as required as described in Section 10.3.
5.4 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 axed to the front of the air breather to help
prevent oil leakage during shipment. Remove this absorbent pad
before using the pump. Wipe o 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.
5.5 Power Requirements
The E-Series electric manual valve pumps are available in a
choice of three dierent electrical power configurations:
• Models EP3204JB and EP3404JB are designed to operate on
a nominal voltage of 100-120 VAC, single-phase, 50-60 Hz
power. These pumps contain a USA style NEMA 5-15 power
plug.
• Models EP3204JI and EP3404JI are designed to operate on
a nominal voltage of 200-250 VAC, single-phase 50-60 Hz
power. These pumps contain a USA style NEMA 6-15 power
plug.
• Models EP3204JE and EP3404JE are designed to operate
on a nominal voltage of 200-250 VAC, single-phase 50-60
Hz power. These pumps contain a European style “Schuko”
power plug.
All configurations are single-phase, 50-60 Hz.
Before connecting the pump to the electrical outlet, refer to the
pump data plate to verify that input power is correct for your
pump configuration. 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.
To prevent possible damage, never attempt to carry or
reposition the pump by dragging it by the hydraulic hose(s), AC
power cord or pendant cable.
6.2 Ventilation System
Air vents are located on the inner edges of the pump front and
rear covers. These vents combine with the cooling fins on the
sides of the pump housing to help maintain allowable operating
temperatures. Before start-up, check that the cooling fins and
vents are not covered by dirt or other obstructions.
6.3 Pendant
A remote control pendant with a 10 foot [3 m] cable is standard
equipment on all models. The back of the pendant housing
contains a strong rare earth magnet, allowing the pendant to be
positioned against most iron and ferrous metal surfaces.
Pump operation is controlled using the two buttons on the
pendant. In addition, the pendant also contains a multi-color
LED indicator which communicates the pump status via a series
of steady or blinking lights.
Pendant LED Indicator (Fig. 5, Item 1)
• Steady green: READY (motor o)
• Blinking green: PUMP ON (motor running)
• Blinking red and/or yellow: Fault code activated (motor o)
The pendant LED indicator will glow steady green approximately
3 seconds after power is connected, indicating that the electronic
controls have powered-up and that the pump is ready for use.
A fault code indicates an abnormal condition that
will result in immediate pump motor shutdown. Refer to Table
2 in Section 14.0 for a description of the pump's user-level fault
codes.
Pendant Buttons (Fig. 4, Items 2 and 3)
• Jog on-o button: Press the button and hold it down to start
and run the motor. Release the button to stop the motor.
• Latched on-o button: Press and release the button to start the
motor. Motor will continue running when button is released.
Press and release the button again to stop the motor.
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Figure 4, Pendant Features and Controls
1. LED Indicator
• Steady green = READY
• Blinking green = PUMP ON
• Blinking red and/or yellow
= FAULT CODE
(refer to Section 14.0)
2. Jog on-o Button
• Press & hold to start.
• Release to stop.
3. Latched on-o Button
• Press & release to start.
• Press and release again to
stop.
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