DoAll C-260 NC, Instruction & Parts Manual

Page: 17 / 59

Instruction & Parts Manual
Pag.17
Edition A
6.2.8 Left and right band guides.
The band guides have to straighten the blade coming out the wheel, and keep it vertical helping the blade insertion between
the inserts.
Left guide arm : Moves horizontally on guides machined on the bridge, and it is moved by the movement of the vise.
Right guide arm : Fixed on the cutting bridge. It supports the cutting servo control.
Both the guide arms have carbide inserts.
6.2.9 Feed pressurecontrol
The 260 NC utilize a constant feed pressure control. The feed force is adjusteable by turning the flow regulator valve, located
on the left side of the control panel.
6.2.10 Wheels
Made using cast iron G26, and lathe machined. They are fastened as follow :
•
the idler wheel is fastened on the band tension assembly, and it turns on ball bearings ;
•
the band drive wheel is fastened on the reducer shaft.
The wheels diameter is larger then the maximum material height that can be cut by the saw..
6.2.11 Band drive motor
The machine mounts a self-cooling 4Kw, AC electric motor.
6.3. H
YDRAULIC POWER UNIT
The power unit is located in an easy to service spot of the machine frame. The valve manifold and solenoids lays on the right
side of the reservoir , over which the motor pump assemblies is installed. The power unit is made by :
Pos. Tab 6.3. Hydraulic power unit
6.3.1 Motor-pump assembly
6.3.2 Oil reservoir
6.3.3 Solenoid valves
6.3.1 Motor-pump assembly
Electrical motor and pump are connected by an elastic coupling.
6.3.2 Oil reservoir
It is in the machine frame, and it has a maximum and a minimum level indicators, and a suction filter. On the left side of the
infeed roller table there is a plug which allows to refill the reservoir. The hydraulic system has 2 filters :
•
a 250 micron 45 liters suction filter
•
a 60 micron 45 liters outflow filter
These two filters have to be removed when changing the oil for the first time (after 500 working hours), washed using tri-
chloroethylene and dried blowing air.
6.3.3 Solenoid valves
The solenoid valves are mounted on blocks, and the control the hydraulic movements.
6.4. E
LECTRICAL SYSTEM