• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
Figure 3-41.  Fuel System
Figure 3-42.  Asphalt Metering Pump Assembly

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
Page Navigation
  486    487    488    489    490  491  492    493    494    495    496  
TM 5-3895-374-24-2 3-7-4 Asphalt Metering Pump Assembly Removal, Repair and Replacement See figure 3-42. This procedure assumes a complete removal, repair and replacement of the assembly.  A partial disassembly repair and replacement  is  possible.    Follow  the  procedure  to  the  point  of  removing  only  those  components  requiring  repair  or replacement. A. Disassembly 1. Disconnect and lock out the breaker for the asphalt metering pump motor. 2. The  hot  oil  heating(heat  transfer)  lines  should  be  cold  as  should  the  asphalt  lines  prior  to  starting  this procedure.  If this is not the case PROCEED USING EXTREME CAUTION IN THE DISCONNECTING OF HOT OIL LINES AND ASPHALT LINES.  Cover all joints with a heavy cloth during disassembly operations. 3. See Sections 3-7-2 and 3-7-9 to close the valving affecting this part of the tanker. 4. Close the asphalt valve (item 2 in Section 3-7-9) between the tank and the asphalt pump. 5. Close the two valves (item 4 in Section 3-7-2) for the heat transfer oil. 6. Use  sorbent  fabric  pad  under  the  deck  of  the  tanker  to  catch  any  liquid  asphalt  or  heat  transfer  fluid  that escapes during the repairs. 7. Use a clean pail for the heat transfer fluid and a clean pail for the liquid asphalt that drains from the lines. This material may be re-used. 8. Remove the mesh guard around the asphalt tanker rear deck. 9. Disconnect the heat transfer lines to the asphalt transfer pipe, the asphalt meter and the asphalt pump.  Tag these lines prior to removal recording which line goes to which port.  Collect the heat transfer fluid in a pail. 10. Remove the asphalt line from the tanker to the drum mixer following the procedure outlined in the operator’s manual. 11. Remove  the  asphalt  transfer  pipe  by  splitting  the  two  flanges  between  it  and  the  three  way  plug  valve. Remove the four bolts.  Remove the gasket.  Collect the liquid asphalt that may drain from the line. Page 3 - 1185







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.