Quantcast Figure 3-15.  Typical Worm and Worm Gear Mechanism

Order this information in Print

Order this information on CD-ROM

Download in PDF Format

     

Click here to make tpub.com your Home Page

Page Title: Figure 3-15. Typical Worm and Worm Gear Mechanism
Back | Up | Next

Click here for a printable version

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Combat
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
USMC
   
Products
  Educational CD-ROM's
Printed Manuals
Downloadable Books
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Section III.  MECHANICAL ASSEMBLIES
Up
TM-9-254 Gearcase Transfer M548 M548A1 (
Next
Fitting  Plunger  to  Housing
TM 9-254 3-7. Worm and Worm Gear Mechanisms - Continued b. Maintenance of Wormshaft.  For a wormshaft to operate properly, the shaft itself must be absolutely true and straight, to prevent the worm from being thrown off center at each revolution of the shaft and causing a binding movement in  the  worm  and  worm  gear  mechanism.    If  such  binding  occurs,  it  is  frequently  due  to  a  bend  or,  more  often,  several bends in the shaft.  In such cases, the entire wormshaft should be replaced.  It may sometimes be necessary to locate and straighten  these  bends.    This  process  involves  much  skill  and  the  ability  to  select  from  a  wide  variety  of  methods  best suited to the particular condition found.  No specific procedure can be outlined.  Generally, the entire length of the shaft must be continually tested during the straightening process and the shaft must be straightened to a point where the worm thread will be no more than 0.001 inch off center when the shaft is rotated in its bearings.  Care must be taken to avoid damaging the worm thread or any of the bearing surfaces while straightening the wormshaft. Figure 3-15.  Typical Worm and Worm Gear Mechanism c. Maintenance   of   Wormshaft   Ball.      The   wormshaft   ball   plays   an   important   part   in   obtaining   a   smooth nonbinding movement free from backlash therefore, the ball must be perfectly round.  An out-of-round ball provides a poor bearing surface and will cause binding in the throwout mechanism, as well as being a source of backlash trouble. 3-13

Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing

Integrated Publishing, Inc.
6230 Stone Rd, Unit Q Port Richey, FL 34668

Phone For Parts Inquiries: (727) 493-0744
Google +