Quantcast OPERATIONAL CHECKS

 

Click here to make tpub.com your Home Page

Page Title: OPERATIONAL CHECKS
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
CHECKING UNPACKED EQUIPMENT
Up
TM-5-6675-329-13-P Self-Leveling Surveying Level (Wild Heerbrugg Model NA2-80) NSN
Next
Table 4-1. Instrument Leveling and Checks (Cont)
TM 5-6675-329-13 & P
Section III: OPERATIONAL CHECKS
4-7
OPERATIONAL CHECKS
Operational checks, consisting of instrument leveling and focusing checks, are shown in Table 4-1. Perform the
procedures weekly when the instrument is in regular use. When the instrument is not used regularly, perform the
procedures before each use.
Table 4-1. Instrument Leveling and Focusing Checks
Operation
Normal Indication
Step
Corrective procedure
1
Level the telescope.
Circular level (8, Figure 1-2) bubble remains centered when instrument is rotated through
360
.
Set up Tripod Assembly GST-40 so that its legs are stable and firmly planted
on (or in) the ground, in an as near level position as possible.
With Automatic Level NA2-80 mounted on Tripod, turn the horizontal drive
knob(s) to rotate level through 360 in the horizontal plane, while matching
circular level bubble through prism. Bubble should remain centered through
360 of rotation. If not, readjust footscrews(s) at level positions(s) where it
goes off center, and re-rotate level until bubble remains centered throughout
continuous rotation. Press the test pushbutton (7, Figure 1-2) while looking
through the telescope. The telescope image should momentarily move off
center and then come back to the centered position. This assures the level
compensator mechanism is functioning properly.
2
Focus crosshairs.
When instrument is focused reticle crosshairs appear sharp and absolutely black (See
Point instrument to a uniformly lighted surface or a sheet of white paper.
Rotate eyepiece (Figure 1-2, item 6) until above normal indication is obtained.
3
Image Focusing.
Image (usually a leveling staff) is sharp and free from parallax with respect to reticle
crosshairs.
4-4

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business