TB 55-5210-254-35/1
AND
DESCRIPTION
I.
IDENTIFICATION
Test
Instrument
Identification.
This
bulletin
provides
instructions
for
periodic
calibration
of
the
cylinder
cage,
model
452,
which
is
used
to
test
whether
a
cylinder
is
accurately
round
and
to
measure
the
amount
of
out-
of-roundness
in
a
worn
cylinder.
The
cylinder
gage
will
hereafter
he
referred
to
as
the
test
instrument
throughout
this
bulletin.
Nomenclature:
Cylinder
gage
Model
No:
452
Manufacturer:
Starrett
FSN:
5210-494-1774
Time
Required:
1
Hr.
Technique:
Physical
Description.
Test
instrument
parameters
and
performance
specifications
which
pertain
to
this
calibration
are
listed
in
1.
description
Performance
spacifications
Test
instrument
parameters
0
to
0.1
inches
Range:
1
Div.
(.001
inch)
A
c
c
u
r
a
c
y
:
Forms
and
Records.
Maintenance
forms,
records,
and
reports
which
are
to
be
used
by
calibration
personnel
at
all
calibration
levels
are
listed
and
prescribed
by
TM
38-750.
After
each
performance
check,
annotate.
DA
Form
(2416
Calibration
Data
card),
in
accordance
with
TM
38-750.
4. R e p o r t i n g
of
Errors.
The
reporting
of
errors,
omissions,
and
recommendations
for
improving
this
publication
by
the
individual
user
is
encouraged.
Reports
should
be
submitted
on
DA
Form
2028
(Recommended
Changes
to
DA
Publications)
and
forwarded
direct
to
Commanding
General,
U.
S.
Army
Aviation
Systems
Command,
ATTN:
AMSAV-R-M,
P.O.
Box
209,
St.
Louis,
Missouri,
63166.
II.
EQUIPMENT
REQUIREMENTS
Equipment
Required.
2
identifies
specific
equipment
used
in
this
calibration
procedure.
Minimum
use
specifications
are
the
principal
parameters
required
for
calibration
Performance,
and
are
included
to
assist
in
selection
of
alternate
equipment,
which
may
be
used
at
the
discretion
of
the
calibrating
activity.
Satisfactory
performance
of
alternate
items
shall
be
verified
prior
to
use.
All
applicable
equipment
must
hear
evidence
of
current
calibration.
