A-Line Precision Reverse Alignment Tools - Precision Shaft Alignment Tools Your Precision Reverse Alignment Tools
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  The procedure for doing reverse dial indicator alignment is not a difficult one.  There are several steps which need to be taken for a successful alignment job.  These steps are broken up for easier navigation on the web.  Print topics by selecting print on your browser.

Alignment Procedure Introduction

Horizontal Move

Vertical Move

Thermal Movement

Alignment Tolerances

Soft Foot Check

Sag Check

Outline of Alignment Procedure

Step 1:  Familiarize with terms, techniques and procedure.
               *follow all safety rules and procedures*

Click here for Introduction to Alignment

Step 2:  Learn about the machine you are aligning.
               a.   Visually check coupling, pipehangers,
                            base bolts, coupling spacing etc.
                b.   Check for coupling & shaft run out.

Step 3:  Know the characteristics of your tool.
                Perform a Sag Check
                    Click here for Sag Check instructions

Step 4:  Prepare the machine.
a.   Remove all existing shims from under the feet
                        -if old shims are to be used, clean them
                        -always use minimum amount of shims.
                b.   Clean the base thoroughly.
                        -scrape and file away all rust, nicks, and burrs
                c.   Examine the base bolts and holes.
                        -retap if necessary
                        -replace bolts if necessary

Step 5:  Installation of alignment brackets
a.   Clean mounting surface, file off nicks and burrs.
                b.   Check indicators for sticking and loose needle.
                c.   Aim indicator stem directly toward center
                        line of shaft.

Step 6:  Measurement
-measure distance between the two indicators.
                -measure distance between indicator and front feet.
                -measure distance between front and back feet.

Step 7:  Layout graph paper 
-mark indicator position
                -mark feet position.
                -remember to mark + and -  signs
                         (this eliminates confusion)
       example: graph layout
                        layout on graph paper.JPG (40605 bytes)

Step 8:  Preliminary Horizontal Move
                    click here for horizontal move instructions

Step 9:  Check for Soft Foot 
                   click here to learn about soft foot check
Step 10:  Perform Vertical Move
                   click here for vertical move instructions

Step 11:  Tighten all bolts and recheck indicator readings.

Step 12:  Remove alignment brackets.

    The more you become familiar with these steps the faster you will be able to align your machinery.


Home ] Introduction ] Horizontal Move ] Vertical Move ] Thermal Movement ] Alignment Tolerances ] Soft Foot Check ] Sag Check ]