TM 9-243
Chapter 11 PLUMB BOBS
HOW TO CHOOSE AND USE THEM
The “Types and Uses” pages provide you with a list of
the more common types of plumb bobs. These pages
should help you select the right plumb bob for the job.
The “Using Plumb Bobs” pages tell you how to use a
steel plumb bob to establish the true vertical of a square
post. By becoming familiar with this procedure you will
build a good background for using other plumb bobs.
The “Care” page tells you how to keep your plumb bobs
in proper condition.
INDEX
Item
Page
TYPES AND USES
. . . . . . . . . . . . . . . . . .
11-2
Surveyor’s Polished Brass
. . . . . . . . . . . . 11-2
Solid Steel . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2
USING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3
CARE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-6
11-1
