alkitronic LEVA Panduan Pengoperasian dan Pemeliharaan - Halaman 7
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4.
Operation
Switch on/off
By pressing the button (1) the LEVA
Hydraulic pump is turned on and the
tool piston extends.
The return stroke is triggered
when released.
The Hydraulic Pump
switches off by pressing
the button (2)
4.1
Torque setting
Check the hose connections of the Hydraulic
Wrench / Hydraulic Pump.
See also point 9, page 10, connection diagram.
Then connect the pump to the mains.
The torque of hydraulic wrenches is proportional to the pres-
sure. The required operating pressure for the corresponding
torque is now determined from the torque table of the hy-
draulic wrench and set on the LEVA Hydraulic Pump.
Do not place the hydraulic wrench on the bolt
or nut yet!
LEVA
electric Hydraulic Pump
1
ON =
2
OFF =
fig. 2
Pressure
gauge
2
Pressure
adjustment
valve
3
3.1
fig. 3
Setting steps:
Press and hold the white button (1) on the remote
control. The piston of the hydraulic wrench extends.
After reaching the end position, the system pressure
is adjusted accordingly by turning the adjusting knob
on the pressure adjusting valve (3) (pressure increase
clockwise / pressure decrease counter clockwise).
The current operating pressure is displayed on the
pressure gauge (2). Release the white button on the
remote control (1), the piston of the hydraulic wrench
then moves back.
Checking the setting:
Press the white button (1) again to fully extend the
torque wrench piston. Hold until the necessary pres-
sure is reached.
After checking the pressure gauge, readjust the pres-
sure with the adjusting knob if necessary.
As soon as the required pressure is set, the setting is
secured against twisting with the wing nut (3.1).
4.2
Operation with the remote control
When tightening or loosening a bolted connection,
the instructions for use of the hydraulic wrench
must always be given equal priority!
Observe the technical information regarding oil
temperature, point 7, page 9.
Place the hydraulic wrench on the bolt connection.
By pressing and releasing the white button (1) you
can rotate the output. A corresponding torque is the
result. Press button (1) repeatedly until the hydraulic
wrench stops rotating and the set operating pressure
or torque has been reached. Carry out a visual inspec-
tion on the pressure gauge.
Tip:
Press the button (1) once or twice to ensure that the
applied torque is transferred to the bolt connection
and that the hydraulic wrench does not just stop at
the end stop of the hydraulic piston.
Observe the pressure gauge display (2, Fig. 3) on the
hydraulic pump ensure that the previously set operat-
ing pressure has been reached.
(When loosening a bolt connection, this process is
repeated just as often until the bolt connection has
completely loosened, see also point. 4.3)
The LEVA Hydraulic Pump switches off by pressing the
black button (2).
7