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.
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Outline of Alignment Procedure
Step 1: Familiarize with terms, techniques and
*follow all safety rules and procedures*
for Introduction to Alignment
Step 2: Learn about the machine you are aligning.
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)
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
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 ]