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Figure 3-44.  Asphalt Metering Pump Drive
Assembly - TM-5-3895-374-24-2_558

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 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 and 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 metering pump.  Tag these lines prior to removal recording which line goes to which port.  Collect the heat transfer fluid in a pail. 10. Remove  flanged  elbow  between  the  tank  valve  and  the  asphalt  metering  pump.    Remove  the  eight  bolts holding it in place and remove the gaskets.  Collect the liquid asphalt that may drain from the line. 11. Remove the four bolts holding the flange to the asphalt meter.  Remove the four bolts holding the asphalt pump to the deck. 12. Remove the two coupling guards and the two bolts holding the pillow block bearing on the asphalt metering pump shaft. 13. Remove both shaft couplings according to the instructions in Section 3-7-6. 14. The asphalt metering pump can be removed.  Remove the key from the shaft and remove the bearing after loosening the collar. 15. Remove the four bolts holding the gear reducer.  The reducer can be removed. 16. Remove the four bolts holding the electric motor.  Remove the junction box cover on the motor.  Label the electrical wires and disconnect the three power wires and the ground.  Disconnect the ground strap from the electric motor to the frame. 17. Remove the electric motor. B. Inspection 1. Clean all components thoroughly using a bio-degradable solution intended for the removal of liquid asphalt products. Page 3 - 1191







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