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6.7.
Drilling device
6.7.1.
Installation of drilling device
1)
Remove the bucket or other attachments.
2)
Put the attachment on a flat place and
connect the arm to the drilling unit and
the connecting rod to the drilling unit
with pin A and pin B in turn.
3)
After confirming that the oil has cooled,
remove the screws from the outlet and
inlet respectively. Be careful not to allow dirt, mud, etc. to stick to the hose
connection area. If the combination gasket is damaged, replace it with a new one.
4)
Connect the attachment side hose.
When connecting, check the
direction of oil flow and be careful
not to connect the wrong hose.
5)
Unlock
the
rotary
valves
connected to the inlet and outlet
pipes on the arm side.
6)
After installing the attachment, make sure that the oil level in the hydraulic tank is
at the proper position.
6.7.2.
Operation of the drilling unit
1)
Operate the joystick that controls the boom and arm, and lift the top of the
drilling tool vertically. Operate the arm cylinder so that the drill head is lightly
pressed against the ground and the front part of the machine is lifted so that
pressure is applied to the drill head during the drilling process.
