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Haas Technical Documentation
Applies to machines built from:
June, 2010
ST, DS - Alignment Correction
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ST, DS - Alignment Correction - Introduction
Correct lathe alignment makes a common centerline through the spindle [1], the turret pocket [2], and the tailstock [3] or
secondary spindle. If the turret crashes, the lathe can lose its alignment. This procedure tells you how to correct the lathe
alignment. For clarity, the illustrations hide surrounding components.
Prerequisites
Make sure the machine is level. Refer to the
Lathe Leveling
Video.
Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015
1/67
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Summary of Contents for Haas Automation ST
- Page 1 If the turret crashes, the lathe can lose its alignment. This procedure tells you how to correct the lathe alignment. For clarity, the illustrations hide surrounding components. Prerequisites Make sure the machine is level. Refer to the Lathe Leveling Video. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 1/67...
- Page 2 8. Face Indicator Tool 9. Tailstock Alignment Tool 10. Spindle Alignment Tool 11. Optional: Spindle Head Alignment Tool (for ST-20/30, DS-30 only). To make this tool, refer to ST-20, ST-30, DS-30 Spindle Head Alignment Tool. To attach this tool you need a 1/2-13x1 flat head cap screw.
- Page 3 Note: This adjustment is rare. If the error is greater than 0.0004" (0.01 mm), measure the alignment again. Make sure the alignment tool is aligned and make sure your indicator setup is stable. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 3/67...
- Page 4 Axis Square to Z Axis Check Note: This procedure is very similar to the procedure ST, DS - X Axis to Z Axis Squareness Correction. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 14/67...
- Page 5 There are (16) screws [1] that attach the saddle to the linear guide trucks (4 for each truck), and (10) screws [2] that attach the saddle to the ballscrew nut housing. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 15/67...
- Page 6 For some of the screws you must use the access holes in the wedge. There are access holes on the left side [1]. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 16/67...
- Page 7 Note: After you loosen the screws, tighten them enough to let you control the adjustment, but keep them loose enough to let you correct the alignment. This is approximately 5-10 ft-lb (7-14 Nm). Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 17/67...
- Page 8 Note: You can choose any one of the (4) corner screws [1] as the pivot screw. STEP 13 Remove (1) screw at the corner opposite to the pivot screw. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 18/67...
- Page 9 The indicator shows amount and direction of the error. STEP 16 Insert a pry bar into the empty screw hole and push the wedge into alignment. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 19/67...
- Page 10 Tighten the (16) screws [1] that attach the saddle to the linear guide trucks. Tighten to approximately half of the specified torque. For torque values, refer to Haas Fastener Torque Specifications. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 20/67...
- Page 11 Tighten to approximately half of the specified torque. For torque values, refer to Haas Fastener Torque Specifications. STEP 22 Measure the squareness. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 21/67...
- Page 12 Caution: Without the plugs, chips can build up in the holes and the wiper can sweep them into the linear guides and cause damage. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 22/67...
- Page 13 Refer to ST, DS - X Axis to Z Axis Squareness Check to measure the squareness of X Axis movement to the Spindle Centerline. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 23/67...
- Page 14 Jog the Z Axis a small amount to move the indicator away from the spindle. Jog the X Axis to move the turret to get access to the screws. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 24/67...
- Page 15 Note: Keep the pivot screw loose enough to allow the casting to rotate, but tight enough to prevent unwanted movement. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 25/67...
- Page 16 Remove (1) screw at the corner opposite to the pivot screw. STEP 10 Jog the X Axis and the Z Axis until the DIST TO GO values are 0. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 26/67...
- Page 17 Insert a pry bar into the screw hole and push the wedge into alignment. STEP 13 The wedge moves around the pivot screw. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 27/67...
- Page 18 Tighten to approximately half of the specified torque the (16) screws that attach the wedge to the linear guide trucks. For torque values, refer to Haas Fastener Torque Specifications. STEP 16 Measure the squareness. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 28/67...
- Page 19 If the alignment is correct, torque the (16) screws that attach the wedge to the linear guide trucks. For torque values, refer to Haas Fastener Torque Specifications. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 29/67...
- Page 20 The only difference is that the (8) screws that attach the wedge to the ballscrew nut housing are in the rear, as shown [1]. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 30/67...
- Page 21 STEP 1 Refer to ST, DS - Turret to X Axis Parallelism Check to measure the parallelism of the turret to X Axis. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 31/67...
- Page 22 Note: Keep the pivot screw loose enough to allow the casting to rotate, but tight enough to prevent unwanted movement. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 32/67...
- Page 23 Loosen the lock nuts. STEP 7 Turn the jack screw counterclockwise to make space between the jack screw and the turret housing casting. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 33/67...
- Page 24 STEP 9 The turret housing casting turns around the pivot screw. STEP 10 Monitor the indicator while you turn the jack screw. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 34/67...
- Page 25 ST, DS - Toolholders to the Spindle Centerline - Correction This section tells you how to align the toolholders [1] to the spindle centerline [2]. Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 35/67...
- Page 26 Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015 36/67...