Doosan Lathe LYNX 220A

• 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.;

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

Arranging the machine periphery in order, cleaning the machine and its periphery (especially, the floor)

Checking the chuck unit and its periphery to scan for chips

Checking for secure mounting of the top jaws

Checking for smooth clamping/unclamping of chuck

Checking the tailstock spindle to scan for chips

Checking the tailstock body and tailstock spindle for smooth forward backward movement

Checking for secure mounting of the cutting tools and the holder

Checking the turrets and the cutting tools to scan for chips

Checking for unusual operating sounds during tail-stock or sub-spindle movement

Warning: Ensure the pump is turned off before starting the procedure

Cover at the side of the coolant pump removed

Coolant drawn out of the tank by the pump

Coolant tank pulled out to the right until the pump protrudes from the side cover

Coolant tank pulled out to the front

Inside of the coolant tank cleaned

Coolant tank reinstalled correctly

Caution: Clean the screen filter regularly

NOTICE! The machine should be completely and correctly lubricated in strict adherence to the directions in the Lubrication Chart in the following page.

Is the specified lubrication oil used?

If the oil other than specified is used, the lubrication unit might fail to operate normally.

If improper coolant is used, lubricating oil will be affected by chemicals and therefore, use the specified coolant so far as possible.

Is the amount of lubricating oil and its discharge condition checked everyday?

Whether or not lubricating oil is properly supplied can be checked by checking oil level in the tank For normal oil consumption amount refer to Fid F-1 in this section.

Is the machine refilled with oil and coolant during the initial installation?

We do not have any experience in using the oils other than those indicated by an asterisk(*). Selection should thus be made from them.