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up going to the top of the hydro-cylinder. Press on the falling button until the sound of oil pump
starts to change. Redo three times as above to exhaust air in the hydro-cylinder.
Set press tool type, holding pressure and holding time. According to the page prompt, you can
complete the parameter setting.
Adjust the action of adding pressure slowly. Rotate the throttle valve (6 of Fig.4) on the hydraulic
unit properly in a clockwise direction, switch on the swing arm without installing press tool and
press the start button. The piston rod keeps uplifting to the top, but the oil pump is still running.
Now, turn back the throttle valve a little slowly in an anticlockwise direction and observe the
pressure gage at the same time. You will see pressure go up to the needed pressure and then
start to keep pressure and time it. Press on the stop button to finish the program of keeping
pressure. You can do the above action again and again until the speed of adding pressure meets
your need. During the procedure, the friction of hydraulic oil will increase and the oil temperature
will rise quickly. In order to extend the service life of hydraulic oil, the speed of adding pressure
should not be too slowly. Usually, it is suitable that the time adding pressure slowly from starting
to rising to 200KN is 2 to 4 seconds. If adjust the speed of adding pressure slowly, genially, you
should adjust the speed of reducing pressure slowly at the same time.
Press Mould Installation
(1) Boric acid or aluminum cup press tool installation
●
The installation steps are as followed:
Install the press head. Push away the swinging arm as 4 of fig.1, press on the lifting
button to lift the piston rod to the top. Clear up the sundries on the piston rod and press head.
Put the seating plane of press head into central pit of tool tray(4 of Fig.5) carefully and screw on
the round nut(3 of Fig.5) by special socket spanner(1 of Fig.5). Don’t screw too tight, but must
screw to the end. Cover on pressure spring, but don’t damage the upper plane of press head.
1. Special socket spanner
2. Press head
3. Round nut
4. Central pit of tool tray
5. Nesting
Steel ring
1
2
3
4
5
Fig.5 Press head handling
