Vernier Inch Micrometer - Polaris 1999 Sportsman 400 Service Manual

18
CHAPTER ONE
VERNIER INCH MICROMETER
Vern ier sca le
,
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Vern ier sca le
Th imble
t
vernier.scale
o
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1. Larges t num ber visi ble
on sleeve lin e 0.100 In.
2. Num ber of sleeve marks vi sible
between the nu mbe red sleeve
mark and the thimble edge 0.050 In.
3. Thimble Is between O.D1S and
0.019 in. on th e sleeve line 0.018 In.
4. Vernier line coinciding with
thimble line 0.0003 In.
Total readi ng : 0.1683 In.
Sleeve
Th imble
I. Read the sleeve line to find the largest numher
visib le-each sleeve number mark equals 0.100
inch.
2. Count the number of sleeve marks visible be-
tween the num bered sleeve ma rk and the thimble
edge -each sleeve ma rk equa ls 0.025 inch. If there
is no visible sleeve marks. continue
to
Step 3.
3. Read the thimble mark that lines up with the
sleeve line-each thimble mark equ als 0.00 I inch.
NOTE
If a thimble mark does not line up er-
actl y with the sleeve line but fa lls be-
tween two lilies. estimate the fra ction
a/decimal amount between the lines.