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This 9 step document will help you isolate the cause of your lost motion. Follow the tests in order, and make sure each passes, before continuing on.
Tools
Dial Travel Indicator with Mag Base
Allen Wrenches
Test 1 - Y Axis Ball Screw Axial Test
Angular Contact Bearing Adjustment Procedure then proceed to Test 2.)
If motion is at .0003, proceed to Test 2
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Test 2 - Y Axial Casting Measurement
Gib adjustment procedure to get to the .0007 – .001” range. (Accumulative/Stacked Tolerance is factored in here - assuming .0005” per previous two steps.)
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Test 4 - X Axial Ball Screw Measurement
Angular Contact Bearing Adjustment Procedure then proceed to Test 6.)
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Test 6 - Radial X Axis Table Measurement
Gib adjustment procedure to get to the .0007 – .001” range. (Accumulative/Stacked Tolerance is factored in here - assuming .0005” per previous two steps.)
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Test 7 - Z Axis Ball Screw Axial Test
Angular Contact Bearing Adjustment Procedure then proceed to Test 8.)
If motion is at .0003, proceed to Test 8.
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Test 8 - Z Axis Casting Axial Test
Gib adjustment procedure to get to the .0007 – .001” range. (Accumulative/Stacked Tolerance is factored in here - assuming .0005” per previous two steps.)
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Move Indicator to spindle head and rock. Follow Gib adjustment procedure to get to the .0007 – .001” range. (Accumulative/Stacked Tolerance is factored in here - assuming .0005” per previous two steps.)
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