ALFRA AHP-M1 Manual De Instrucciones página 22

Fig. 3: Replacing the screw plug or ventilation screw (example illustration)
note:
to prevent hydraulic oil from escaping, the sealing screw plug must
be reinserted in the tank opening for subsequent transport of the unit.
• screw the sealing screw plug into the thread at the front of the electro-hydraulic pump to
ensure quick and safe access when required.
• Connect the unit or tool with the control cable to the 7-pin flange socket of the pump.
• Turn the mains switch of the hydraulic pump to the "I" position to place the pump in ready mode.
warning!
!
in a dangerous situation when working with the connected unit, stop all dangerous movements
of the unit without delay.
• in a dangerous situation, press the red emergency stop switch on the connected unit to stop
the pump motor and to deactivate the magnetic valve!
• alternatively, actuate the foot-operated switch beyond the first pressure point.
this also causes the operation to be stopped immediately.
after initiating an emergency stop:
• Turn the emergency stop switch on the connected unit slightly so that it returns to its initial position.
The pump is placed in ready mode again. It can be reactivated by actuating the foot pedal.
• If the emergency stop was initiated using the foot-operated switch: release it by pressing the blue silicone
cover at the side of the foot-operated switch (see fig. 4).
Fig. 4: Releasing the foot-operated switch
• Position the required material in the tool and, depending on the machining, ensure the material is centred.
- Always observe the details in the operating instructions as well as the usage data and special features of
the connected tool!
- Do not use any tools that show damage or whose handling is not familiar!
• Actuate the foot-operated switch to the first pressure point (approximately halfpressed, which corresponds
to a force of approximately 20 kg). The pump motor and the magnetic valve are activated to allow oil to flow
into the tool.
- Depending on the associated tool, the machining operation can be interrupted with a pause function.
Although the motor is stopped, the magnetic valve remains activated so that the tool does not travel
backwards and pressure remains in the system.
• After the operation, release the foot-operated switch or actuate the stop switch to deactivate the pump and
the magnetic valve. The oil can now flow back from the tool to the pump tank and the tool travels back to its
initial position.
• To switch off the pump, turn the mains switch to the "0" position.
• Before transport, remove the ventilation screw and close the tank opening with the screw plug to prevent
hydraulic fluid from escaping (see section 8 "Commissioning").
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