7. unit descriPtion
The single-acting hydraulic pump is a single-stage radial-piston pump equipped with a high-performance
electric motor (1), which with three pump elements achieves excellent flow rates. The electrical supply
cables can be wrapped around the two stable carrying handles (2) located on both sides of the pump.
Fig. 1: Front and interior view
key
1) Drive motor
2) Carrying handles
3) Oil lead connection
4) Mains cable
5) Mains switch
6) Control cable connection (7-pin)
7) Rating plate
The mains cable (4), the connection for the control cable (6) and the rating plate (7) are located at the front.
The pump can be placed in ready mode via the master switch (5) and then activated with the control signals
of the single-pedal safety foot-operated switch. The oil level inside the tank can be checked at any time from
the viewing window (8) next to the carrying handles. The installed induction motor is particularly smooth-
running and includes an operating capacitor (11). The integrated magnetic valve (13) controls the created
oil flow and retains the pressure in the tool during the pause function. If the operating pressure in the tool
exceeds the maximum pressure set for the pump, the pressure relief valve (12) opens and the oil flows back
to the pump tank. During operation, the tank opening (9) is closed with the air permeable ventilation screw;
for transport, the tank opening is closed with the sealing screw plug (10). When activated, an integrated
emergency stop power circuit (24 V) interrupts the power supply for the motor and the magnetic valve, and
returns the tool to its initial position.
Fig. 2: Dimensions
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8) Viewing window for checking the oil level
9) Tank opening with ventilation screw
10) Screw plug
11) Operating capacitor
12) Pressure relief valve
13) Magnetic valve
14) Control electronics