Quantcast Section IX.  PURGING AND CHARGING FIRE CONTROL EQUIPIENT

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: Section IX. PURGING AND CHARGING FIRE CONTROL EQUIPIENT
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
Short Term Shutdown of Purging and Charging Equipment
Up
TM-9-254 Gearcase Transfer M548 M548A1 (
Next
Figure 3-47.  Purging and Charging M118 Series Elbow Telescope
TM 9-254 3-20. Time Cycles - Continued b. Maintenance personnel will purge and charge fire control materiel being repaired whenever the repair function affects internal sealing. c. For  maintenance  of  materiel  in  storage  refer  to  TM  740-90-1  (Administrative  Storage)  and  for  time  cycles refer to SB 740-95-601 (Storage Serviceability Standards for USAWECOM Materiel). Section IX.  PURGING AND CHARGING FIRE CONTROL EQUIPIENT 3-21. General. This  section  contains  general  procedures  for  purging  and  charging  of  fire  control  equipment.    Insure  that  all  preformed packings, gaskets, and seals have been properly installed into the instrument.  Refer to the appropriate technical manual for a list of repair parts for the fire control instrument being repaired.  Apply sealing compound to the threads of setscrews and air valve stem, around level vial mounting, and other places that may leak internal pressure while being leak tested. For  the  purpose  of  demonstration,  the  M118  series  Elbow  Telescope  is  used  as  the  instrument  being  sealed  and  leak tested. 3-22. Purging and Charging. a. Purging (fig. 3-47).  Purge the fire control instrument (M118 series Elbow Telescope) as follows: (1) Perform the setup of the single stage pressure test fixture as described in paragraph 3-18a. (2) Remove the inlet port cap (3) and outlet screw (5). (3) Attach the free end of the hose assembly (6) to the inlet port (4). (4) Turn pressure regulator valve (2) clockwise until low pressure gage indicates 5 psig.  Maintain pressure for 15 minutes. (5) Turn pressure regulator valve (2) counterclockwise to off. (6) Apply sealing compound to threads of outlet screw (5) and install. b. Charging (fig. 3-47).  Charge the fire control instrument (M118 series Elbow Telescope) as follows: (1) Turn  pressure  regulator  valve  (2)  clockwise  until  low  pressure  gage  (1)  indicates  1  psig.    Maintain pressure for 1 minute. (2) Turn pressure regulator valve (2) counterclockwise to off. (3) Apply a soap solution to all sealed joints and screws. (4) Observe the low pressure gage (1) and the telescope for 5 minutes minimum.  If the pressure drops or bubbles appear, refer to the appropriate manual for maintenance procedures. (5) Remove hose assembly (6) and install inlet port cap (3). 3-48

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

Integrated Publishing, Inc.