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Field Service Lathe Level and Alignment Checklist - ST - DS

Service Home How To Procedures Field Service Lathe Level and Alignment Checklist - ST - DS
Recently Updated Last updated: 04/01/2022

Field Service Lathe Level and Alignment Checklist - ST and DS


This procedure requires parameter changes and should only be completed by a Haas HFO Service Technician.

Field Service Lathe Level and Alignment Checklist - ST - DS

- Jump to Section - 1. Field Service Lathe Level and Alignment Check (13 steps) Back to Top

Field Service Lathe Level and Alignment Check

1

  • This document is a checklist meant to verify lathe alignment.  The goal is to have a common centerline between the spindle, the turret pocket, and the tailstock or sub-spindle.  You will want to check alignment under the following conditions:
  1. A machine crash occurred
  2. You have reports of machine errors
  • Record the size of each error, in the order given. Then, correct each error to align the lathe.
  • To use this document, refer to ST, DS - Alignment Check.
Attach the bubble level to the turret, jog the Z-Axis and check the level across the entire Z-Axis travel:
  • Use tool T-2181

Record approximate bubble location and any change across the travel:

_________________________________________________________

2

Spindle Centerline to Z-Axis Parallelsim Part 1:
Spindle Face Axial Runout:
  • Attach an indicator as shown to the face of the turret
  • Rotate the spindle 360 degrees and watch indicator movemment

Total Axial Runout on Spindle Shaft Face:

_________________________________________

The maximum permitted error is 0.0002" (0.005 mm)

3

Spindle to Z-Axis Parallelism Part 2:

  • Measure the radial runout at the base and end of the alignment bar
  • The maximum radial error that is permitted is 0.0002 (0.005 mm)" at each end

Radial Error Base:

___________________________________

Radial Error End:

___________________________________

  • Measure the parallelism along the top of the bar as you jog the Z-Axis
  • The maximum permitted error is 0.0004"/10" (0.010 mm / 254 mm)

Top of bar parallelism:

___________________________________

  • Measure the parallelism along the side of the bar while jogging the z-axis
  • The maximum permitted error is 0.0004"/10" (0.010 mm / 254 mm)

Side of bar parallelism:

___________________________________

 

Spindle Alingment Bar Service Tool Part Numbers:

  • T-2113 for ST-10
  • T-1312 for ST-20/30, DS-30
  • T-1652 for ST-30 Big Bore, ST-40 and ST-40 Big Bore
  • ST-40 Big Bore also must have Adapter T-2160 and Spacer T-2161
  • T-2165 and T-2166 are necessary for ST-40/45/50/55 that have the optional Steady Rest (T-1652 is too short).

4

Y-Axis Square to Z-Axis

RECORD PARAMETER 700 VALUE:

___________________________________

  • Set the parameter 700 to zero.
  • Measure the parallelism of the spindle face to the Y-Axis using the gauge block
  • Record the measured error

ERROR:

___________________________________

The maximum permitted error is 0.0002"/5" (0.005 mm / 127 mm)

  • Set Parameter 700 back to the recorded value.

 

5

X-Axis to Z-Axis Squareness

  • Measure the parallelism of the spindle face to the X-Axis using the gauge block
  • Record the measured error.

ERROR:

___________________________________

The maximum permitted error is 0.0002"/5" (0.005 mm / 127 mm)

 

6

Turret to X-Axis Parallelism

  • Attach a magnetic base to the spindle retaining ring with the indicator tip on the face of the BOT/Hybrid [1] or VDI [2] turret
  • Move the turret along the X-Axis.

ERROR:

___________________________________

The maximum permitted error is 0.0004"/4" (0.010 mm / 102 mm)

7

Spindle Centerline to Turret

For New Generation Controls (NGC), record the following parameters:

Note: Depending on the Software Version the Spindle Center Line settings may be located in the User Positions tab and not the Settings tab.

RECORD SETTING 319 FOR VDI TURRETS in INCHES or MM:

___________________________________

RECORD SETTING 320 FOR BOT/BMT TURRETS in INCHES or MM:

___________________________________

RECORD PARAMETER 211 (FACTORY) for Y-AXIS EQIPPPED LATHES:

___________________________________

For Classic Haas Controls (CHC), record the following parameters:

RECORD PARAMETER 254 VALUE:

___________________________________

RECORD PARAMETER 254 VALUE (in inches or mm):

___________________________________

For CHC Y-Axis Equipped Lathes: RECORD PARAMETER 211 VALUE:

___________________________________

For CHC Y-Axis Equipped Lathes: RECORD PARAMETER 211 VALUE (in inches or mm):

___________________________________

Measure the spindle centerline to toolholder concentricity with a co-axial indicator.  Reference the How-To procedures listed below for detailed steps on how to find this measurement.

POCKET CONCENTRICITY (RADIAL ERROR):

___________________________________

The maximum permitted error is 0.001" (0.025 mm) for pocket number 1. For other pockets, the maximum permitted error is 0.003 (0.076 mm) .

How-To Related Procedures:

  • Lathe - No Y-Axis - Toolholder to Spindle Center Line Adjustment - CHC
  • Lathe - Y-Axis - Toolholder to Spindle Center Line Adjustment - CHC
  • Lathe - Toolholder to Spindle Center Line - NGC

INSPECTION TOOLS:

  • BOT: T-0026 for ST-10
  • T-0027 for ST-20/30, DS-30
  • T2171 for ST-20SS/30SST
  • T-0028 for ST-40
  • VDI: T-2201

8

Tailstock Parallelism to Z-Axis:

  • Install a taper alignment tool into the tailstock
  • Measure across the parallelism along the side of the bar

SIDE PARALLELISM ERROR:

___________________________________

The maximum permitted error is 0.001"/4" (0.025 mm / 102 mm)

  • Measure parallelism across the top of the tool [2]

TOP PARALLELISM ERROR:

___________________________________

The maximum permitted error is 0.001"/4" (0.025 mm / 102 mm)

TAPER ALIGNMENT TOOLS:

  • T-0016 for MT3 (ST-10)
  • T-1416 for MT4 (ST-20,30 and DS-30)
  • T-1733 for MT5 (ST-40)

9

Z-Axis to B-Axis Parallelism

  • Measure parallelism across the side of the tool [1]
  • Jog the Z-Axis 4 inches [2]
  • Jog the B-Axis 4 inches [3]
  • Do this again for the full length of the B Axis travel.

SIDE PARALLELISM ERROR:

__________________________________

The maximum permitted error is 0.001" (0.025 mm)/Full Travel

  • Measure across the top of the taper tool
  • Jog the Z-Axis 4 inches [2]
  • Jog the B-Axis 4 inches [3]

TOP PARALLELISM ERROR:

__________________________________

The maximum permitted error is 0.001" (0.025 mm)/Full Travel

10

Tailstock Concentricity to Spindle

  • Attach an indicator to the face of the alignment bar.

End of Alignment Bar Error [1]:

___________________________________

Base of Alingment Bar Error [2]:

___________________________________

The maximum radial error is 0.001" (0.025 mm) at each end

11

Secondary Spindle Parallelism to Z-Axis:

  • Mount the magnetic base to the turret
  • Move the indicator along T-2113
  • Measure across the top of the secondary spindle alignment tool [1]

TOP PARALLELISM ERROR:

___________________________________

The maximum permitted error is 0.0004"/10" (0.010 mm / 254 mm)

  • Measure across the side of the secondary spindle alignment tool [2]

SIDE ERROR:

___________________________________

The maximum permitted error is 0.0004"/10" (0.010 mm / 254 mm)

  • SECONDARY SPINDLE ALIGNMENT TOOL:
    • T-2113

12

Z-Axis to B-Axis Parallelism (for Secondary Spindle)

  • Measure across the top of the tool [1]
  • Jog the Z-Axis 4 inches [2]
  • Jog the B-Axis 4 inches [3]
  • Repeat for the entire length of the B-Axis travel

TOP PARALLELISM ERROR:

__________________________________

The maximum permitted error is 0.001" (0.025 mm) /Full Travel

  • Measure across the side of the taper tool
  • Jog the Z-Axis 4 inches [2]
  • Jog the B-Axis 4 inches [3]

SIDE PARALLELISM ERROR:

__________________________________

The maximum permitted error is 0.001"/Full Travel

13

Secondary Spindle Concentricity to Main Spindle

  • Attach an indicator to the face of the alignment bar and measure the main spindle nose taper radial runout as seen from the secondary spindle

RADIAL ERROR:

___________________________________

The maximum permitted error is 0.002" (0.050 mm)

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