Electrical Connections - Enerpac ZU4 T Serie Manual De Instrucciones

4.3 Electrical Connections

THE PUMP IS FACTORY EQUIPPED WITH THE COMMON
ELECTRICAL PLUG FOR A GIVEN VOLTAGE. ALTERING THE
PLUG TYPE SHOULD ONLY BE DONE BY A QUALIFIED
ELECTRICIAN, ADHERING TO ALL APPLICABLE LOCAL AND
NATIONAL CODES.
1. The disconnect and line circuit protection to be provided by
customer. Line circuit protection to be 115% of motor full load
current at maximum pressure of application (see Figure 1).
2. For more information, refer to pump name plate for power
rating.
4.4 Fluid Level
Check the oil level of the pump prior to start-up, if necessary add
oil by removing the SAE #10 plug from the cover plate (see Fig.
2). The reservoir is full when the oil level reaches the top of the
sight glass. (Fig. 4).
IMPORTANT: Add oil only when all system components are fully
retracted, or the system will contain more oil than the reservoir can
hold.
4.5 Connect Hydraulic Hoses
Connect hoses as shown in Figure 5.
1. (-E) Pump type for Enerpac SQD and HXD torque wrenches.
Be sure to use hoses marked "ENERPAC THC-700 SERIES -
800 Bar/11,600 psi max." The couplers on these hoses are
"polarized" at the factory to ensure correct wrench operation.
A. Hose and wrench female couplers. Hand tighten threaded
coupler lock rings, no tools are required.
B. The (-E) pump's female couplers are self locking, press
mating couplers together until coupler lock ring snaps
forward. To disconnect, twist coupler lock ring clockwise
and push away from connection.
2. (-Q) Pump type for generic torque wrenches. Use hoses rated
at 700 bar/10,000 psi operating pressure. Couplers must be
Retract
(-E) Pumps
Advance
Retract
(-Q) Pumps
Advance
Tank is full
when oil level
is here.
Figure 4
Pump Valve
polarized per figure 5 for correct wrench operation. Ensure
couplers are fully engaged and tightened before operating.
Partial coupler engagement will prevent proper wrench
operation.
WARNING: When using (-Q) pumps with multi-wrench
manifolds, ensure all unused couplers have the protective
caps fully installed before starting pump.
Note: When the wrench is first connected to the pump, air will be
trapped in the hydraulic circuit. Remove air by placing wrench and
straightened hoses below pump, operate wrench without load
until it rotates without hesitation.
5.0 OPERATION
1. Check the oil level of pump and add oil if necessary.
2. Make sure the shipping plug has been removed and the
breather cap is installed. (See Section 4.1)
3. Connect unit to power. Wait until "OK" is displayed on the
LCD before pressing any button on shroud or pendant.
NOTE: During the boot sequence, the micro processor
identifies any button operation as a potential malfunction and
prevents the motor from starting. Reset by disconnecting
power for 10 seconds.
4. Start motor and retract wrench by pressing and releasing the
On/Off button on the pendant. The LCD will show the
pressure in the retract circuit (B-port bypass), approximately
2500 – 2800 psi (173 – 193 bar).
WARNING:
automatically, retracting torque wrench. Verify torque
wrench is positioned to avoid injury or equipment damage
before starting motor.
5. Shut off motor by pressing the On/Off button (pendant or
shroud). If no pendant or shroud buttons are pressed with in
any continuous 20-second period, the pump's built in timer
will automatically shut off the motor.
NOTE: When the motor is turned off, as the motor stops
turning, the valves will automatically cycle to release all
pressure in both advance and retract hoses.
NOTE: Units equipped with heat exchangers, when practical,
allow the timer to automatically shut off pump. During any idle
period, the pump is circulating 90% of its oil flow through the
heat exchanger to reduce oil temperature.
Figure 5
3
As motor starts, the
Torque Wrench
valve shifts