TM 5-3895-370-14&P
2-21. TESTING SPRAYBAR FOR CIRCULATION (CONT).
WARNING
Flowing material from spray nozzle is
very hot. Use extreme caution and
wear proper protective clothing or
severe
injury
may
result
to
personnel.
NOTE
Place a suitable container beneath
hose fittings before disconnecting to
collect
all
bituminous
material.
Contact your local environmental
office or support installation for
proper disposal.
(4)
Place a suitable container under spray
nozzle (3) then, using pin (2), manually
turn nozzle 90 until material begins to
flow out.
(5)
If material sprays freely, without interruption, spraybar (4) is ready for use.
(6)
If material sprays slowly, or appears to be congealed, spraybar (4) must be heated with portable torch.
Refer to para 2-25.
(7)
After test, replace pin (2) in original position to match pins on other valves.
(8)
Install hair pin (1) in pin (2).
2-22. SPRAYBAR OPERATION.
a.
Introduction. Prior to spraybar use, complete circulating procedures (para 2-20). Before operating spraybar,
check for proper valve positioning to ensure that all spraybar valves are closed (para 2-21) and that all necessary
extensions have been installed. Spraybar height is adjusted with hydraulic controls at control panel. When extensions are
installed, winches are used to adjust either end of the spraybar, independent from the other end, as necessary.
b.
Spraybar Height Adjustment.
(1)
To adjust height of spraybar (1) at control panel (2), proceed as follows:
NOTE
This height adjustment procedure applies to both left and right winches.
(a)
Start engine (para 2-14).
2-48
