Enerpac XC-1400 Series, Instruction Sheet

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11
7.5 Control Valve Operation
The control valve is operated by a rotary lever at the front of the
pump. See Figure 10 for valve positions.
To advance the cylinder: Move the valve lever to the “A”
position. Then, pull the trigger switch upward to start the motor.
The cylinder will continue to advance until the trigger switch is
released or the cylinder reaches its maximum travel.
To retract the cylinder: Move the valve lever to the “B”
position. Then, pull the trigger switch upward to start the motor.
The cylinder will continue to retract until the trigger switch is
released or until the cylinder is fully retracted.
The control valve blocks flow in both cylinder hoses when the
lever is moved to the neutral (center) position. However, the XC-
1400 Series pump is not designed for holding loads. After lifting
is completed, the load must be mechanically supported (refer to
warning statement and related information in Section 7.4).
7.6 Air Removal
When hydraulic components are connected for the first time,
air will be trapped in the components. To ensure smooth, safe
operation, run the cylinder through several complete advance-
retract cycles before placing the pump into service. Do this with
no load on the cylinder and with the pump positioned higher
than the cylinder. To allow for air venting, remove the pump oil
fill plug and O-ring before beginning this procedure (See Fig 11).
When the cylinder advances and retracts smoothly and without
hesitation, the air has been vented from the system. Fully retract
the cylinder and re-install oil fill plug and O-ring after completing
procedure.
NOTICE
Trapped air purged from system components will
return to reservoir. Oil level may drop. Add additional oil (if
required) to reservoir after purging air. Refer to Section 8.3.
7.7 Battery Pack Current Draw Protection
To protect the MILWAUKEE M28™ battery pack from damage
and extend its life, the battery pack’s intelligent circuit monitors
both current draw and temperature.
In extremely high torque, binding, stalling, and short circuit
situations, the battery pack will shut-off if the current draw
becomes too high. The fuel gauge lights will flash 8 times,
indicating that battery pack shut-off has occurred
To prevent battery pack shut-off from occurring, reduce the
amount of load on the cylinder or tool (if possible) or release the
trigger switch. Releasing the trigger switch will reset the battery
pack.
7.8 Battery Pack High Temperature Protection
Under extreme circumstances, the internal temperature of
the MILWAUKEE M28™ battery pack can become too high,
resulting in battery pack shut-off.
If the lights flash in an alternating manner when the fuel gauge
button is pressed, allow time for the battery pack to cool.
The battery pack is ready for use when the fuel gauge lights
display the remaining run time when the fuel gauge button is
pressed.
7.9 Battery Pack Cold Weather Operation
The MILWAUKEE M28™ battery pack is designed to operate in
temperatures below freezing. However, when the battery pack
is very cold, it may need to warm-up before normal use. To
warm-up the battery pack, install it on the pump and operate
the pump with little or no load.
NOTICE Refer to the Milwaukee Electric Tool manual (provided
with the battery pack and charger) for complete battery pack
use and care information and charging instructions.
7.10 Disconnecting Hydraulic Hoses
Disconnect hydraulic hoses after use as described in the
following steps:
1. Fully retract the cylinder or tool. Be sure that the load is
completely removed from the device.
2. Move the control valve lever back and forth between the
“A” and “B” positions several times to relieve any trapped
pressure.
3. If pressure gauges have been installed, verify that the
gauges indicate zero (0) psi/bar.
4. Disconnect hoses from pump.
5. To prevent contamination, cap or plug pump ports “A” and
“B”.
Figure 10, Control Valve Positions
Neutral A - Advance B - Retract