Enerpac ATP-1500 Instrucciones página 5

4.4 Air Requirements
Pump air consumption is approximately 21 SCFM [113 l/min] of
free air at 100 psi [6,8 bar] oil discharge pressure. At lower air
pressures and higher hydraulic pressures, air consumption will
be reduced proportionally to the flow rates indicated.
IMPORTANT: Pump air supply pressure should not exceed 90
psi [6,2 bar] static.
WARNING: The pump air pressure relief valve is factory
set at approximately 90 psi [6,2 bar]. To prevent personal
injury and equipment damage, do not attempt to raise
relief valve setting.
Use only dry and filtered compressed air. Use of a water separator
is strongly recommended.
Pump internal components are self-lubricating. Lubricated air is
NOT required.
4.5 Pump Priming (air bleeding)
IMPORTANT: New pumps MUST be primed BEFORE initial
start-up. Perform priming procedure as described in the following
steps. Refer to figures 5 through 8.
1. Be sure that hydraulic reservoir is filled with Enerpac HF oil
and that reservoir outlet valve is open. Refer to Section 4.2.
2. Be sure that the air-shutoff valve is in the CLOSED position
and that the oil return-to-tank valve is open.
3. Connect air supply hose to the pump air inlet connection.
4. 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. Connect one end of a 3 foot [1 m] long hydraulic hose to the
pump oil outlet connection.
CLOSED
(pump off)
Figure 5, Air-Shutoff Valve
OPEN
(pump on)
CLOSED
(oil flow to tool)
Figure 6, Oil Return-to-Tank Valve
6. Install an open-ended quick disconnect fitting on other end
of hose.
7. Unscrew the reservoir filler cap. Place hose end with open-
ended fitting inside reservoir. This will allow oil return during
priming.
8. Close the oil return-to-
tank valve. Move the
air-shutoff valve to the
OPEN position.
9. Using the air pressure
regulator, SLOWLY
increase air pressure
from 0 psi to 10-15 psi
[0,68 - 1,0 bar] to start
pump operation.
10. Verify that oil
returning to the
reservoir through the
hose. Increase air
pressure to 40 psi
[2,75 bar] until all air
is purged from the
system (no bubbles
visible in return oil
stream).
11. Move the air-shutoff valve back to the CLOSED position.
The pump will stop.
12. Turn the air pressure regulator knob counter-clockwise until
zero [0] psi/bar is indicated on the air pressure gauge.
13. Open the oil return-to-tank valve to relieve any residual
hydraulic pressure. Verify that hydraulic pressure gauge
indicates zero [0] psi/bar.
5
OPEN
(pressure release
to tank)
• Pull up to turn.
• Push down to lock.
is
Figure 7, Air Pressure Gauge
and Regulator