Your foremost concern should always be safety. Never allow loose clothing or long hair anywhere near moving machinery, and make certain all equipment is
LOCKED OUT AND TAGGED OUT
A FEW REMINDERS
Starrett # 196A... is the indicator set most millwrights have in their tool kits. It is important to know how to handle the indicator and set it up without damaging it.
The features of the indicator are as follows:
A- is contact point normally used.
B- is the knurled rim for adjusting the dial.
C, D, E- are extra contact points for special situations.
F- is the hole attachment, which is also used for face alignment of couplings.
G- is the clamp and post.
H- is the tool post holder with upright spindle.
I-is the sleeve for holding indicator and mounted on post.
J- is a chain type indicator bracket.
K- is the indicator hand on the dial.
The indicator face is graduated in one-thousandths increments and numbered 0-50-0, as at K in . When setting up the indicator for alignment of a coupling, the contact point should be pressed in until the hand makes one complete revolution (.100). This allows .100 travel each way + and - without jamming the indicator. Once the indicator is mounted and the .100 travel set, the dial can be turned to zero the hand.
The indicator and bracket should never be used to turn the coupling.
The indicator and attachments must be kept clean and dry to maintain its accuracy.
The indicator should not be used on equipment being welded with an electric welder.