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: TABLE 1 - CLEARANCE GUIDE
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
   

 

APPENDIX A FIG. 10.  REMOVING   ROTOR   COVER,   TOP   OF   SCREW- DRIVER     IS     PLACED     IN     SLOT     AND     PRIED UPWARD  TO  PREVENT  DAMAGE  TO  TOP  EDGE OF ROTOR. to  remove  scale,  etc.,  after  which  all  parts  should  be thoroughly  washed  in  solvent  or  kerosene.    The  Blade Rollers  or  bearings  must  revolve  freely  on  their  shafts without   excessive   looseness.      If   the   Blade   Rollers (bearings)   are   worn,   they   must   be   replaced.      Blade Roller or bearing replacement is not normally attempted in    the    field    but    can    be    accomplished    with    proper equipment and care. If any burrs are apparent on the blades, they should be removed.  Sharp, clean cut edges should be maintained on the blades.  Blade blocks should be flat and clean, if grooved   they   maybe   turned   over   and   used   on   the opposite side, otherwise they should be replaced.  If the Rotor is equipped with rotor cover rollers and pins, these should also be replaced if they show wear or roughness. Reassemble  in  reverse  order  from  disassembly,  being sure that al I bearing locks are properly positioned. The  jackshaft  extends  through  a  replaceable  cartridge type Packing Gland in the single case meters.  Remove Jack Shaft Pinion and draw the Shaft from the Gland.  If the Jack shaft is worn or corroded, it should be replaced, otherwise  it  may  be  cleaned  and  polished  with  a  fine crocus cloth.  Polish with a rotary motion so as not to cut vertical  grooves  or  scratches  in  the  Shaft.    Coat  the Shaft with light grease before inserting in the gland.  If the  Packing  Gland  is  worn,  replace  with  a  new  Gland cartridge  and  gasket.    Check  Jack  Shaft  Bushing  and replace if worn. TABLE 1 - CLEARANCE GUIDE THIS  CLEARANCE  GUIDE  LISTS  THE  RECOMMENDED  MINIMUM  AND  MAXIMUM  FITTING  CLEARANCES  FOR  NEW  AND  REPAIRED METERS.  CLEARANCES MAY EXCEED THE MAXIMUM SHOWN PROVIDED THE METER PROVES WITHIN  ACCEPTABLE  ACCURACY. THE ABOVE CLEARANCES APPLY ONLY TO METERS OPERATING AT STANDARD  OPERATING  TEMPERATURES  OF  20 TO  150°F.    AND VISCOSITIES LESS THAN 5,000 SSU.  FOR HIGHER TEMPERATURES AND VISCOSITIES CONSULT FACTORY. *BLADES   SHOULD   MOVE   FREELY   IN   ROTOR   SLOTS   AND   THE AVERAGE CLEARANCE IN EACH SLOT SHOULD NOT EXCEED THE LISTED CLEARANCES.  NOR SHOULD ANY SINGLE POINT BE MORE THAN 50% ABOVE THE MAXIMUM LISTED. **THE  BLADE  SHOULD  BE  SHORTER  THAN  THE  ROTOR  BY  THE AMOUNT SPECIFIED TO ALLOW FOR DIFFERENCE IN COEFFICIENT OF  EXPANSION  BETWEEN  THE ALUMINUM BLADES AND IRON ROTOR.    (LOWER  EDGE  OF  BLADE  SHOULD  NOT  PROJECT BELOW BOTTOM SURFACE OF ROTOR.) ***WITH   THE   BLADE   IN   THE   MEASURING   CHAMBER.      THIS TOTAL  CLEARANCE  SHOULD  BE  MAINTAINED  BETWEEN  THE RADIUS OF THE CAM AND ONE ROLLER ONLY. ****WITH THE BLADE HELD TOWARD (AWAY ON T-6 AND T-10) THE HOUSING, THESE CLEARANCES  SHOULD BE MAINTAINED BETWEEN THE MEASURING CHAMBER AND THE FULL LENGTH OF THE EDGE OF THE BLADE. A9-23

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

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