Remove padlock from the breaker and turn breaker on.
3-3-12 Asphalt/Fines Injection Pipes
Disassembly, Repair and Replacement See figure 3-10.
Disconnect and lock out the breaker for the drum drive motor and the burner blower motor.
Obtain the required approval to enter the drum (A confined space). Test the air quality for the presence of
dangerous gases. Ventilate the drum with sufficient air to allow work to be completed inside the drum safely.
Remove excess material from the Injection pipes and the pipe support.
Remove the u-bolts holding the pipes to the support.
The pipe can be raised out of the discharge box and slid toward the king pin end of the chassis. To remove it
completely the elbow and extension pipe will have to be removed. Due to the high heat in the drum It may be
necessary to cut this off Slide the remaining portion of the pipe out of the drum.
Inspect the pipes for cracks, wear or damage. Repair as necessary.
Install the fines injection pipe through the lower collar and into the drum.
Install the elbow and the extension pipe and position Into the discharge box. If these have been cut off at removal,
weld original components back on or install new.
Install the asphalt injection pipe through the upper collar and into the drum.
Install the elbow and the extension pipe and position into the discharge box
Install the u-bolts, spacers, nuts and washers. Tighten the nuts into place.
Remove padlock from the breakers and turn breakers on.