TM 5-3895-359-14&P
Dieseling, is caused by the carbon and lead deposits in
Cleaning Asphalt And Emulsion Fluid System (Fig.
the cylinder head being heated up to such an extent that
they continue to fire the engine and keep it running after
The system must be thoroughly flushed clean using fuel
the ignition has been shut off. By idling the engine, as
oil. A fuel oil tanker can be hooked up to the liquid
previously mentioned, the carbon and lead deposits cool
pump in a similar manner as for processing soil.
off, break up and will blow out thru the exhaust, If
engine has a tendency to diesel, by suddenly setting the
If pump body is not full, it must be primed with fuel oil
throttle wide open and at the same time shutting off the
first. Run pump engine at approximately half throttle.
ignition, the engine will stop.
All spray nozzles must be open. Open tailboard to its
extent. Raise hood and rotor to their extent. Lower
Turn ignition key (22) off after engine cooling period.
nozzles into hood. Rotate rotor in high. Centrifugal
force of the rotor plus the fuel oil will clean the rotor.
Operating Only A Portion Of The Spray Bar Nozzles
CAUTION: MAKE SURE NO PERSONNEL ARE
The spray bar nozzle assembly is equipped with two /2"
BEHIND THE MACHINE AS THEY MAY BE HIT
"gas" cocks. The upper "gas" cock being linked to the
WITH FLYING MATERIAL.
connecting bar with a valve lever. The lower "gas" cock
may be closed with a wrench, thus shutting off the liquid
Flush system until clean oil appears at the nozzles.
flow thru that particular nozzle.
The system is equipped with a strainer at the intake side
When flushing out the liquid system at the end of
of the pump to retain any solids from entering the fluid
operation, all nozzles must be flushed out by opening
system which could cause damage and possible failure
the "gas" cocks previously closed.
of the meter or pump.
Frequent inspection and cleaning of the strainer must be
made using fuel oil or solvent, SD-2.
WARNING
Solvent SD-2 is potentially dangerous. Do not
use near open flame or heat.
The fuel oil may be drained from the fluid system by
opening the pump drain (A) and line drain (B). It is
recommended that fuel oil be left in the system until the
following day's operation.
Each line is equipped with a line fill plug (C) that may be
removed and fuel oil added to the lower line system as a
protection to the meter in case of an emergency.
When the fluid system is not going to be used for some
time, remove the suction line and cap the pump intake.
Figure 1-13. Spray bar Nozzle Assembly
Fill
entire
system
with
fuel
oil.
Figure 1-14. Emulsion Fluid System
22
