Acer ATL 1820E, Operation Manual

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3.4 Machine leveling
It is necessary to level the machine before starting to operate the machine.
Please prepare the following tools to adjust machine leveling:
1)
Accurate spirit leveling gauge (spec. 0.02mm/1000mm or 0.01in/4ft0
2) Two adjustable wrench
Clean the table surface thoroughly, set one of the spirit leveling gauge on the
longitudinal direction and the other on the cross direction of the slide.
If there is only one leveling available, then use it on both directions alternately.
Adjust the six leveling screws bolts 1 located the bottom
of the machine base (as shown in below) until the machine
is leveled with 0.02mm/1000mm(0.001”/4ft) in both directions.
Suggestion: For the newly installed machine, check its once
every week. If the foundation is rigid enough, then you may
level the machine once per month.
3.5 Lubrication
3.5.1 Lubrication pump specification
Auto, manual pump tank capacity :2.1 L
Effective capacity :1.7 L
Motor : (110V) / 220V
Directions
* Note the oil quantity will reduce gradually under normal application.