2
WARNING: Do not use electric pumps in an explosive
atmosphere. Adhere to all local and national electrical
codes. A qualified electrician must do installation and
modification.
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 specifications. Use of incorrect power source
will damage the motor.
3.0 SPECIFICATIONS
3.1 Performance Chart (See bottom of page)
3.2 Flow Charts
Flow and current vs. Pressure (imperial)
Current (Amps)
3
Current (Amps)
Flow (in
3
/min)
Pressure (psi)
115V
230V
0
5
10
20
25
15
00
0 1000 2000 3000 4000
5000
6000 7000 8000 9000 11,60010,000
Flow and current vs. Pressure (metric)
Current (Amps)
Current (Amps)
Flow (l/min)
Pressure (bar)
115V
230V
0
5
10
20
25
15
070
1,6
2,3
4,9
6,4
8,2
9,8
0
140 210
280
350
420 490 560 630 700 800
4.0 Installation
Install or position the pump to ensure that air flow around the
motor and pump is unobstructed. Keep the motor clean to
ensure maximum cooling during operation.
4.1 Pump Mounting
If desired, the pump may be mounted to a fixed surface. Refer to
Figure 1 for mounting dimensions.
A
B
C
(Note: Reservoir viewed from below)
1-2 Gal. [4-8 Liter] Reservoir
A 3.75 inch [95 mm]
B 9.00 inch [229 mm]
C
tapped holes, M8 x 1.25
0.25 inch [6 mm] deep
Figure 1, Mounting Dimensions
4.2 Air Breather (See Figure 2)
A shipping plug (A) is installed in the breather port on the top of
the reservoir. Before using the pump, replace the shipping plug
(A) with the air breather (B) and adapter fitting (C).
A
C
B
Figure 2, Air Breather Installation
t ZU4 PERFORMANCE CHART
Motor
Size
Output Flow Rate
in
3
/min
[l/min]
Motor Electrical
Specifications
Sound
Level
Relief Valve
Adjustment Range
hp
[kW]
100 psi
[7 bar]
700 psi
[50 bar]
5,000 psi
[350 bar]
10,000 psi
[700 bar]
Volts AC-Ph-Hz dBA
psi
[bar]
1.7*
[1,25]
700
[11,5]
535
[8,8]
76
[1,2]
60
[1,0]
115-1-50/60
230-1-50/60
85-90
1,400-10,000
[140 - 700]