TM 5-3895-370-14&P
2-20. CIRCULATING BITUMINOUS MATERIAL (CONT).
CAUTION
Do not increase pump GPM until piping and pump is warmed to the temperature of
the material being circulated, or overflowing may result in damage to supply tank
or relief valves.
(9)
When piping is adequately warmed to the temperature of the material, move pump transmission control
lever (14) to neutral with the pump rate at 0 GPM.
(10)
System piping is now warmed adequately to transfer material from supply to storage (para 2-19). To warm
the spraybar for use, proceed to step (11).
NOTE
Establish spraybar width before circulating material through it. Before circulating
material through spraybar, spraybar should be configured as it will be used during
operations. Refer to paragraph 2-18 to install and remove spraybar extensions.
(11)
To heat the spraybar for operation, place valves in the following positions (Circulate Bar/Spray, Figure 2-2,
Sheet 3):
(a)
Place valve #1 (8) in the bar position.
(b)
Open valve #2 (9).
(c)
Close valves #3 (10), and #4 (11).
(d)
Open valve #5 (12).
(e)
Close valve #6 (13).
2-46