Enerpac ATP-1500 Instrucciones página 6

Figure 8, Hydraulic Pressure Gauge
14. Remove the 3 foot [1 m] long oil return hose from the
reservoir. Reinstall the reservoir filler cap.
15. Disconnect the oil return hose from the pump oil outlet
connection.
5.0 PUMP OPERATION
Operate the pump as described in sections 5.1 through 5.4.
Refer to Figures 5 through 8.
IMPORTANT: New pumps must be primed before operation.
Refer to Section 4.5.
5.1 Before Pressurizing the Pump
1. Be sure that air-shutoff valve is in the CLOSED position and
that the oil return-to-tank valve is open.
2. Prepare the pump for operation. Check oil level and make hose
connections as required. Refer to sections 4.1 through 4.4.
IMPORTANT: Be sure that filler cap is installed as described in
Section 4.1. The filler cap contains an integral air breather that
provides reservoir venting during pump operation.
3. While air-shutoff valve remains CLOSED, activate air source
and check the air pressure gauge. If any pressure is indicated,
turn air pressure regulator knob counter-clockwise as required,
until gauge indicates zero [0] psi/bar.
5.2 Pressurizing the Pump
1. Close the oil return-to-tank valve.
IMPORTANT: Close the oil return-to-tank valve using hand
pressure only. Use of tools may result in damage to the valve
and/or valve seat.
2. Move the air-shutoff valve to the OPEN position.
3. SLOWLY increase air pressure (turn air pressure regulator
knob clockwise) until pump starts running and hydraulic
pressure begins to build.
CAUTION: Continuously monitor the hydraulic pressure
gauge while pump is running. Pressures can rise faster
than anticipated. Be prepared to close the air-shutoff
valve immediately when the desired hydraulic pressure is
indicated.
IMPORTANT: Time required to pressurize the hydraulic circuit
will vary, depending on the number and type of tools connected,
available air volume, hydraulic hose lengths and other factors.
4. When the desired reading is shown on the hydraulic pressure
gauge, stop turning the air regulator knob and move the air-
shutoff valve to the CLOSED position. The pump will stop.
5. Turn air pressure regulator knob counter-clockwise until air
pressure gauge indicates zero [0] psi/bar.
5.3 Depressurizing the Pump
1. Be sure the air-shutoff valve is in the CLOSED position.
2. SLOWLY open the oil return-to-tank valve to relieve hydraulic
pressure. Verify that the hydraulic pressure gauge indicates
zero [0] psi/bar.
5.4 Pump Shut Down and Disconnection
1. Be sure that air-shutoff valve is in the CLOSED position.
Turn the air pressure regulator knob counter-clockwise as
required, until the air pressure gauge indicates zero [0] psi/
bar.
2. SLOWLY open the oil return-to-tank valve (if closed) to
purge any remaining hydraulic pressure. Verify that hydraulic
pressure gauge indicates zero [0] psi/bar.
3. Disconnect air supply hose from pump air inlet connection.
4. Disconnect oil supply hose from pump oil outlet connection.
5. Fully close the reservoir filler cap.
IMPORTANT: Reservoir filler cap must be fully closed when
pump is not in use to prevent contaminants from entering the
system.
6. Store the pump as described in Section 6.0.
6.0 STORAGE
• Be sure that the oil return-to-tank valve is in the OPEN position.
• Check that reservoir filler cap is fully closed.
• Remove the filter bowl. Drain water and remove any debris.
Reinstall bowl after draining.
• Store the pump in the upright position in a clean and dry
location.
• Place dust covers on hydraulic oil outlet and air inlet
connections.
• If the pump will be stored for an extended period of time, apply
a suitable rust inhibitor to all exposed unplated metal items.
7.0 MAINTENANCE
Refer to Figure 9 for locations of pump maintenance items.
IMPORTANT: Take every precaution to guard the pump and oil
lines against entry of dirt and grit. Foreign matter in the system
may result in pump failure or damage to pump components.
Such damage is not covered under warranty.
WARNING: Before beginning any maintenance or
repairs, be sure that oil return-to-tank valve is open and
that air-shutoff valve is closed. Always disconnect air
and hydraulic lines from pump. Verify that gauges indicate zero
[0] psi/bar.
7.1 Air Filter
Replace the air filter element if it appears dirty, or if there is a
noticeable drop in airflow. See Figure 10 for parts diagram.
7.2 Filter Bowl Drain Port
The filter bowl will automatically drain itself when the water level
rises to approximately 1/3 bowl height. The bowl must be
pressurized to at least 22 psi [1,5 bar] for automatic draining to
occur. If desired, a drain hose with a 1/8 inch BSPP fitting (user-
supplied) can be connected to the bowl drain port.
Replace the entire bowl assembly if the auto-drain feature fails to
operate. See Figure 10 for parts diagram.
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