Doosan Lathe LYNX 220LMA

Checking and adjusting the bed level using a level

Sign off on the lathe inspection

• The machine is shipped after complete adjustment of tapered gibs. Readjustment will become necessary when the gibs are worn or loosened by use, resulting in noticeable irregular feed movement, which adversely affects the working accuracy.

• Adjust the gib using the adjusting screws on right side of the saddle after removing the right and left saddle wipers.

a) Loosen the gib adjusting screw at counterclockwise(CCW).

b) Fully tighten at clockwise(CW) and then return by a half turn the gib adjusting screw.

c) Tighten the gib adjusting screw at clockwise(CW).

• Target clearance should be 0.01 mm (0.0004 in.).

d) Adjust the gib of tailstock in the same method.;

Warning: Turn off the pump before starting the cleaning process.

Is the coolant pump turned off?

Remove the cover at the side of the coolant pump.

Draw the coolant out of the tank by the pump.

Pull out the coolant tank to the right until the pump protrudes from the side cover, and pull it out to the front.

Is the coolant tank pulled out correctly?

Check the wipers for abnormalities such as damage

Check for oil leakage and for damaged piping

Check the Air unit element and if necessary, replace

Check the electrical components for dirt and discoloration and check for loose terminal screws

Check for loose connector/terminals between units

1. Adjusting V-belt Between The Spindle and Main Motor

• When the PK-belts are worn or loosen after using for a long period, it is advisable to tension them or replace them with new ones.

Adjust the belt tension as below procedure

1) Loosen the fastening bolts (1) of motor bracket.

2) Loosen the nut (2) under the adjusting block.

3) Secure the adjusting bolt (3) slowly.

4) Check the amount of deflection value (d) of PK-belt with tension (F1) as above table.

5) After getting the set value (5), secure the nut (2).

2. Adjusting PK-belt between the sub-spindle