Machines of the type ARG 330 are not fitted with springs for floating hardened steel blade guides. Adjustable contact pressure of
floating hardened steel guides is facilitated by screws.
Guide Head Setting Procedure
Raise the saw blade approx. 30 mm (in ARG 300) above the fixed vice jaw (70 mm in ARG 520). Switch off the POWER SWITCH and
secure it against restart. Disconnect the coolant supply hoses from the guide heads and the control head (the hydraulic hoses must
never be disconnected!). Loosen the tensioning star nut in order to loosen the saw blade. Open/remove the protective covers of the
saw blade. In ARG 520 DC, fasten the hardened steel blade guides screw in order to release the grip of the blade in the head. Take
the saw blade off the moving wheels and push it off the guide heads. Unscrew the guide heads gradually from the fixed and moving
guide bars and clean them thoroughly. Fasten the guide heads to the fixture approx. 350 mm from each other and turn them through
180° (with bearings and hardened steel blade guides upwards). Make sure that the guide heads are perpendicular to the guide bars
and that the height of the guide heads is identical. Check the tightening of the fixed hardened steel blade guides. Insert
approximately 50 cm of an old saw blade in the guide heads between the hardened steel blade guides and the bearings. When the
saw blade has been adjusted, set the eccentrically mounted bearings in such a manner that the bearings do not “cut” the saw blade,
but at the same time you have to prevent too much space for the saw blade between the bearings. When the saw blade moves, the
bearings are carried along by the saw blade. Adjust the control bearing with the control cylinder liner so that the bearing axis is
perpendicular to the saw blade. Make sure that all bolt connections are tight. Unscrew the guide heads from the fixture. Fit the saw
blade on the wheels, check its correct alignment on the wheels and tension the saw blade. Install both guide heads on the saw blade
in the space between the bars and adjust them in the correct position on the bars.In this way, the correct guide head height towards
the guide bars is achieved. Adjust the heads in such a way that the saw blade is in perpendicular position to the machine table and
tighten them. Connect the coolant hoses and the saw blade pressure control heads. Close/put back the protective covers of the saw
blade and turn on the POWER SWITCH. Switch on the hydraulic unit and carry out a short trial run of the saw blade. Switch off the
POWER SWITCH and secure it against restart. Open/remove the protective covers of the saw blade and check the placement of the
saw blade on the wheels. Make a correction, if necessary - see section 4.8.. Close/put back the protective covers of the saw blade
and turn on the POWER SWITCH and the hydraulic unit. Carry out the cutting.
4.10. Hydraulic Unit
The hydraulic unit is installed in the machine base. It lifts the band saw arm, feeds the saw blade to the cut, feeds the arm into the cut
and clamps and unclamps the vice. The HYDRAULIC UNIT - START button is used for activation of the hydraulic unit when the
MAIN SWITCH is turned on. The units in all machines are identical, only the ARG 520 DC CF-NC includes an extra block - marked in
grey.
Hydraulic unit ARG 260 CF-NC, ARG 300 CF-NC, ARG 300 DCT CF-NC, ARG 330 CF-NC, ARG 330 DC CF-NC
TANK
ELECTRIC MOTOR
PUMP
RETURN FILTER
ONE-WAY VALVE
VALVE
PRESSURE
GAUGE
PRESSURE
REDUCTION VALVE
FILLING CAP RELIEF
SWITCHBOARD
SWITCHBOARD
PRESSURE SWITCH
OF THE FIXED VICE
LOCK
PRESSURE SWITCH
OF THE MOVABLE VICE
TRANSPORT CAPS
