Changing The Oil - Enerpac BP1 Serie Instrucciones

7.4 Battery Pack Protection
To protect the battery pack from damage and extend its life, the
battery pack's V ™ -technology intelligent circuit will turn OFF the
battery pack if the current draw becomes too high. This could
happen in extremely high torque, binding, stalling, and short
circuit situations. In these situations, the pump motor will pulse
for about 5 seconds before the battery pack turns OFF.
To prevent the battery pack from turning OFF, immediately reduce
pressure on the application or release the trigger. If the trigger is
pulled after the battery pack turns itself OFF, a clicking sound
(about once per second) will be heard and the pump mechanism
may rotate slightly. Place the battery pack on the charger to reset
the intelligent circuit and turn the battery pack back ON.
8.0 RELIEF VALVE ADJUSTMENT
A user-adjustable external relief valve is located under a hex
cap on the right hand side of the pump. It is adjustable from
approximately 10,000 psi [689 bar] down to 2,000 psi [140 bar].
Adjust the external relief valve as described in the following
steps:
1. Install a 0-15,000 psi [1035 bar] pressure gauge into the
0.250-18 NPT gauge port.
2. Install a plug in the 0.375-18 NPT valve outlet port.
3. Be sure a fully charged battery pack is installed on the pump.
Briefl y jog the pump motor to ensure there are no hydraulic
leaks.
4. Remove the hex cap covering the relief valve adjustment
screw.
5. Loosen the valve locknut. Using an Allen wrench, turn the
adjustment screw counter-clockwise one full turn.
Note: To obtain the most accurate relief valve setting, always
start at a lower pressure and adjust up to the desired pressure
setting.
Locknut
Figure 10, External Relief Valve (hex cap removed)
6. Move the high/low/trigger lock switch to the "2" position.
Depress the trigger to start the pump motor. Gradually
increase pump speed to maximum.
7. With the pump running, SLOWLY turn the adjustment screw
clockwise while watching the pressure gauge. Stop the
pump when the desired pressure reading is obtained.
8. Check the setting by stopping and restarting the pump
several times. If the gauge reading is the same each time,
the valve setting is stable. Tighten the valve locknut to
secure the setting.
9. Reinstall the hex cap to cover the adjusting screw.
Note: The pump's internal relief valve is factory set to
approximately 10,750 psi [741 bar] maximum operating pressure.
The internal relief valve is NOT user adjustable.
WARNING: To reduce the chance of personal injury and/
or property damage, never attempt to readjust the pump
internal relief valve.
9.0 MAINTENANCE
WARNING: To reduce the risk of injury, always lock trigger
and remove battery pack before connecting or disconnecting
hydraulic hoses or performing pump maintenance.
9.1 Adding Oil
Check reservoir hydraulic oil level every 40 hours of operation.
Add oil when necessary until the oil level is ½ inch [1 cm] below
the vent/fi ll plug opening. Use only Enerpac hydraulic oil. The use
of other oils or fl uids may damage your system, and will void your
Enerpac warranty.

9.2 Changing the Oil

Completely drain the reservoir after every 100 hours of operation.
If pump is operated in very dusty areas or at high temperatures,
drain and refi ll after every 50 hours of operation.
Change oil as described in the following steps:
1. Be sure cylinder is fully retracted and that all oil has drained
back to the reservoir.
2. Disconnect hydraulic outlet hose from control valve.
3. Remove battery pack from powerhead. Be sure switch is in
the locked " " position.
4. Remove vent/fi ll plug from reservoir.
5. Tip the pump until all old oil has drained out. Catch all old oil
in a suitable container.
IMPORTANT: Dispose of used oil properly.
6. Add new Enerpac hydraulic oil through vent/fi ll opening until
the oil level is ½ inch [1 cm] below the vent/fi ll opening. Refer
Adjustment
to the table in Section 3.2 for the reservoir capacity of your
Screw
pump model.
7. Reinstall the vent/fi ll plug.
8. Reconnect hydraulic outlet hose to control valve.
9. Remove air from the system. Refer to Section 6.5.
9.3 Cleaning the Reservoir
The pump reservoir should be cleaned at least once a year.
1. Drain the reservoir as described in steps 1 through 5 of
Section 9.2. Be sure battery pack is removed and that switch
is in the locked " " position.
2. Remove the eight mounting screws securing the pump and
motor assembly to the reservoir. Lift the assembly off of the
reservoir. Use care to avoid damaging intake screens.
3. Remove and discard the pump mounting gasket.
4. Thoroughly clean the reservoir interior with a suitable solvent.
Never use water.
5. Use a soft bristle brush to clean the intake screens. Rinse
with solvent.
6. Install a new pump gasket.
7. Align bolt holes and position the pump assembly on the
reservoir. Verify that the outer edge of the pump gasket is
visible all the way around the pump housing.
8. Secure pump and motor assembly to reservoir with eight
mounting screws.
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