Enerpac ZU4 Instructions page 2

IMPORTANT: Do not lift hydraulic equipment by the
hoses or swivel couplers. Use the carrying handle or
other means of safe transport.
CAUTION: Keep hydraulic equipment away from
fl ames and heat. Excessive heat will soften
packings and seals, resulting in fl uid leaks. Heat
also weakens hose materials and packings. For optimum
performance do not expose equipment to temperatures of 65°C
[150°F] or higher. Protect hoses and cylinders from weld spatter.
DANGER: Do not handle pressurized hoses.
Escaping oil under pressure can penetrate the skin,
causing serious injury. If oil is injected under the skin,
see a doctor immediately.
WARNING: Only use hydraulic torque wrenches in a
coupled system. Never use a torque wrench with
unconnected couplers. If the torque wrench becomes
extremely overloaded, components can fail catastrophically
causing severe personal injury.
3.0 SPECIFICATIONS
Refer to Section 3.1, Performance Chart, for pump performance
information and specifi cations.
3.1 Performance Chart
Pump Motor
Model
hp
RPM
[kW]
ZU4 (-Q) 1.7
1750
[1,25]
ZU4 (-E) 1.7
1750
[1,25]
1.5
ZE4 (-Q) 1750
[1,12]
1.5
ZE4 (-E) 1750
[1,12]
3.0
ZE5 (-Q) 1750
[2,24]
3.0
ZE5 (-E) 1750
[2,24]
* Output fl ow rate is listed at 60 Hz. Flow rate will be approximately
Output Flow Rate*
3
in /min
[l/min]
100 psi 700 psi 5,000 psi
[7 bar] [50 bar] [350 bar]
700 535 76
[11,5] [8,8] [1,2]
700 535 76
[11,5] [8,8] [1,2]
650 600 62
[10,7] [9,8] [1,0]
650 600 62
[10,7] [9,8] [1,0]
850 825 123
[13,9] [13,5] [2,0]
850 825 123
[13,9] [13,5] [2,0]
IMPORTANT: Hydraulic equipment must only be
serviced by a qualifi ed hydraulic technician. For repair
service, contact the Authorized ENERPAC Service
Center in your area. To protect your warranty, use only
ENERPAC oil.
WARNING: Immediately replace worn or damaged parts with
genuine ENERPAC parts. Standard grade parts will break
causing personal injury and property damage. ENERPAC
parts are designed to fi t properly and withstand high loads.
WARNING: Do not use electric pumps in an explosive
atmosphere. Adhere to all local and national electrical
codes. A qualifi ed electrician must do installation and
modifi cation.
WARNING: Keep hands clear of moving parts and
pressurized hoses.
WARNING: These pumps have internal factory
adjusted relief valves, which must not be repaired or
adjusted except by an Authorized Enerpac Service
Center.
WARNING: To prevent damage to pump electric motor,
check specifi cations. Use of incorrect power source will
damage the motor.
Sound Relief Valve
Level Adjustment
Range
10,000 psi
dBA
[700 bar] [bar]
60
1,400-10,000
85-90
[1,0] [70-700]
60
1,400-11,600
85-90
[1,0] [70-800]
60
1,400-10,000
75
[1,0] [70-700]
60
1,400-11,600
75
[70-800]
[1,0]
120
1,400-10,000
75
[2,0] [70-700]
120
1,400-11,600
75
[2,0] [70-800]
5 ⁄ of shown values at 50 Hz.
6
2
Motor
Electrical
Specifi cations
psi
Volts AC-Ph-Hz
115-1-50/60
230-1-50/60
115-1-50/60
230-1-50/60
(See motor
data plate)
Maximum
Current
Draw
Amps
20 (115V)
11 (230V)
24 (115V)
11 (230V)
(See motor
data plate)