Hydraulic Unit - Pilous ARG 220 D Instruction Manual

5.5. Setting of Band Saw Head Stroke Height
The system enables the setting of the head stroke height close above the workpiece. It is particularly important when material is cut in
series. It substantially reduces the cutting cycle time in comparison with the situation if the head returned to the maximum upper
position.
Band saw head stroke limit switch
Band saw head stroke cam
Arresting lever
Setting scale
Band saw head stroke
If you release the arresting lever and thus the band saw head stroke cam, the band saw head can be elevated to the maximum
position. This procedure is used when the saw blade is being replaced - it enables easier access to the saw blade.
The setting on the scale serves for guidance only. The stroke and the setting have to be tested, as required.

5.6. Hydraulic Unit

The hydraulic unit is installed in the machine base. It serves for moving the band saw head up and down, for clamping and
opening the vice and feeding the workpiece in the cutting position. When the master switch is on, the HYDRAULIC UNIT -
START button serves for activating the electric system of the machine and at the same time for starting the hydraulic unit.
EV1 - Pressure valve for left moving vice
EV2 - Pressure valve for right fixed vice
EV3 - Pressure valve for band saw head elevation
EV4 - Pressure valve for band saw head descent
EV5 - Pressure valve for workpiece feed to saw blade
EV6 - Pressure valve for workpiece feed from saw blade
EV7 - Feed deceleration pressure valve
TS1 - Fixed vice pressure switch
TS2 - Moving vice pressure switch
EV4
A2 A1
B2 B1
FILLING HOLE PRESSURE ADJUSTMENT FOR WHOLE SYSTEM
WITH FILTER ADJUSTMENTS BY UNQUALIFIED PERSONS ARE PROHIBITED
VICE PRESSURE VALVE
EV5
Setting procedure:
The head is in the lower end position. Release the arresting lever of
the band saw head stroke cam, set the required stroke on the scale
(approx. 15-20 mm above the workpiece section) and tighten the
arresting lever.
The band saw head is elevated above the lower end position.
Switch the band saw to MANUEL MODE and lower the band saw head
in the lower end position (see chapter 6.). Release the arresting lever
of the head stroke cam, setting the required stroke on the scale
(approx. 15-20 mm above the workpiece section) and tighten the
arresting lever.
VICE PRESSURE INDICATOR
VICE PRESSURE VALVE
T.S.2 T.S.1
EV6 EV7
EV1 EV2
EV3