6-4 CHAPTER 6: HYDRAULICS
ALPHA 552
3. MAINTENANCE
The hydraulic oil quality gets worse with the bar feeder system running continuously. The cutting chips
and sludge heap on button of the oil tank and will be pumped into the hydraulic system. These
substances will damage the pump, the guiding channel or even bar stock. Therefore, depends on the bar
feed system running status, it is recommend to drain and clean the oil tank at least once every 6 months.
Follow the procedures below:
• Power OFF the bar feeder system. Confirm most of the oil return to oil tank.
• Remove the remnant tray.
• Place a container with sufficient capacity (minimum: 50 litres) underneath the drain plug.
• Remove the drain plug and drain the oil.
• When the oil tank is empty, clean the sludge inside the tank and bar feed system.
• Clean the drain plug. Apply seal on the plug and screw the drain plug in.
• Refill new oil into the bar feed system until the indicator shows oil level at H (about 25 litres needed).
Confirm there is no leaking from the plug.
• Install the remnant tray back.
Dispose of waste used oil properly in an environmentally friendly way, and according to
your local regulation.
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