Enerpac ZU4T-Series - Manuel (Page 4)

4
4.4 Electrical Connections
WARNING: The pump is factory equipped with the
common electrical plug for a given voltage. Altering
the plug type should only be done by a qualifi ed
electrician, adhering to all applicable local and national codes.
Note: For 3-Phase ZE4 and ZE5 pumps, no power plug is
provided.
1. The disconnect and line circuit protection is to be provided
by customer. Line circuit protection is to be 115 % of motor
full load current at maximum pressure of application.
2. For additional information, refer to power rating on pump
name plate and/or motor name plate.
4.5 Hydraulic Hose Connections
Connect hoses as described for your pump type (-E) or (-Q). Refer
to Figure 5.
1. (-E) Pump type for use with 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.
The (-E) pump’s female couplers are self locking. To connect,
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 use with Enerpac S and W torque wrenches
and other brands: Use hoses marked “Enerpac THQ-700
series - 700 bar/10,000 psi max.” Couplers must be 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 fi rst 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. Be sure that the air breather and adapter fi tting have been
installed. See Section 4.2.
2. Check the pump oil level and add oil if necessary. See Section
4.3.
3. Connect unit to power. Wait until “READY” is displayed on
the LCD before pressing any button on shroud or pendant.
Note: During the boot sequence, the microcontroller identifi es
any button operation as a potential malfunction and prevents
the motor from starting. Reset by disconnecting power for 20
seconds.
4. Set the relief valve pressure. See Section 5.2.
5. Using the LCD control panel, set the desired maximum
advance pressure or torque. Refer to sections 6.1 through
6.5 of this document for LCD control panel operation
instructions.
WARNING: As motor starts, the torque wrench will
retract automatically. Verify torque wrench is positioned
to avoid injury or equipment damage before starting
motor.
6. Start motor and retract wrench by pressing and releasing the
pendant on/off button. The LCD will show the pressure in the
retract circuit (B-port bypass), approximately 2500 – 2800 psi
[173 – 193 bar].
7. Advance the torque wrench by pressing and holding the
pendant advance button.
8. Shut-off motor by pressing the pendant on/off button or the
shroud on/off (Motor) button. If no pendant or shroud buttons
are pressed within 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 valve will automatically cycle to release all pressure in both
the advance and retract hoses.
Note: Pumps equipped with heat exchangers: Whenever
possible, allow the timer to automatically shut-off the pump.
The 20 second delay will allow additional time for oil to circulate
through the heat exchanger, resulting in improved oil cooling.
ENERPAC THQ-700 SERIES - 700 BAR/10,000 PSI MAX.
ENERPAC THQ-700 SERIES - 700 BAR/10,000 PSI MAX.
B
A
ENERPAC THC-700 SERIES - 800 BAR/11,600 PSI MAX.
B
A
ENERPAC THC-700 SERIES - 800 BAR/11,600 PSI MAX.
Figure 5, Hose Details
(-E) Pumps
Retract
Advance
(-Q) Pumps
Retract
Advance
Pump Valve Torque Wrench