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: CLEANING AND INSPECTION
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
   

 

TM 9-2330-398-24 3-34.  4-INCH PUMP ASSEMBLY REPAIR (continued). NOTE Remove wear plate only if excessive wear is evident. 9. Remove two nuts (21) and lockwashers (22) and wear plate (28) from volute.  Discard lockwashers. 10. Remove eight studs (27) from volute (26). 11. Remove pipe plug (23) from volute (26). c.  CLEANING AND INSPECTION 1. Inspect clearance between wear plate and Impeller.  If clearance exceeds 0.035 inch, add shims until rubbing just starts to occur when impeller and wear plate are Installed.  Remove enough shims to move the impeller away from the wear plate to a distance of 0.015 inch. 2. Rotate pump by hand to make sure Impeller is not binding or scraping. 3. Remove minor nicks on edges of impeller vanes with a fine finishing stone. 5. After replacement of impeller, wear plate, or impeller shaft, check for clearance between the back of the impeller and  the  seal  plate.    If  the  impeller  scrapes  when  the  seal  plate  is  installed,  add  another  gasket  of  sufficient thickness between the seal plate and pump casting. 6. Inspect the mating surfaces of the seals for wear, scoring, grooves, or other damage that can cause leakage. If any of the seal parts are worn, replace seal.  Never mix old and new parts of seals. 7. Inspect the impeller shaft for nicks, scratches, scoring, or other damage.  Replace the shaft if damaged. 8. Rotate bearings by hand and check for binding or wear.  Replace bearings if wear is found.  If the shaft is worn so the  bearings  slip  on  and  off  easily,  the  shaft  must  be  replaced.    Replace  the  housing  if  the  bearings  do  not  fit snugly into the bearing bore. d.  ASSEMBLY 1. Install pipe plug (23) in volute (26). 2. Install eight studs (27) in volute (26). 3. Install wear plate (28) to volute (26) with two new lockwashers (22) and nuts (21). 4. Install spacer (39), bearings (38 and 42), and snap ring (48) to impeller shaft (41). 5. Install new seal (45) in bearing cup (44). 6. Install new seal (37) in intermediate housing (35). 7. Install spacer (39), bearings (38 and 42), and impeller shaft (41) in intermediate housing (35) as an assembly. 8. Install pump coupling (16) and key (47) to impeller shaft (41). 9. Install new gasket (43), bearing cap (44), new lockwasher (22), and four screws (46) to intermediate housing (35). 3-106

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

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