Remove the clevis pin holding the air cylinder shaft clevis to the plug valve lever. Lower the air cylinder so
that it does not interfere with the disassembly.
Remove the three way plug valve by splitting it at the two flanges. Remove the four bolts holding it to the
asphalt return line. Remove the four bolts attaching it to the asphalt meter. Remove the valve.
Remove the four bolts in the flange between the asphalt pump and the asphalt meter. Remove the asphalt
meter by removing the four fasteners in the base of the meter. The assembly can be lifted clear of the base.
Clean all components thoroughly. Clean them in a bio-degradable solution intended for the removal of liquid
Replace all flange gaskets with new ones.
The asphalt meter should be inspected, tested and disassembled according to the manufacturers
instructions in Section 3-7-8.
The three way plug valve should be inspected for wear. Remove the valve core and inspect the plug and
openings. If this portion is worn or damaged it should be replaced. It may allow asphalt past the core
slitting the flow rather than directing it to the correct location.
Inspect all heat transfer lines for damage to the line or the threaded ends. Replace any lines that are
damaged or suspicious.
Assembly during an overhaul would only proceed after the disassembly and inspection have been
completed in Sections 3-7-5 and 3-7-10.
Clean the rear deck of asphalt and debris prior to beginning the assembly.
Install the asphalt meter to the deck. Install the four bolts, washers and nuts that hold it in place. Install the
gasket between the flanges of the asphalt meter and the asphalt metering pump. Install the four flange
bolts and tighten. Tighten the bolts holding the meter to the deck.
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