Engage truck transmission in gear previously determined for proper application speed
Bring truck speed up until pump flow rate is at least three-fourths of the original determined flow rate.
Upon reaching starting point, if necessary push hydraulic control knob down against stop and turn on
Once spraying is started, the operator may drive up to a speed at which the pump flow rate (gpm) is one
and one half times greater or down to a speed at which the flow rate (gpm) is three-fourths of the original
determined flow (gpm). Above the high limit, excessive fogging starts to occur and below the low limit,
insufficient flow results in a fan which is less than full width
Upon completion of shot, turn off spray bar and if necessary decrease pump flow rate to a maximum of
160 gpm. This is done to prevent excessive pressure in the spray bar when not spraying
Recording Settings with Hydrostatic Drive.
Enter distribution rate in space at lower left in table 2-2.
Enter corresponding distributor speed in space at lower center of table
Enter bar length in left column of table
Enter pump discharge rate in second column of table
Make a dry run at indicated distributor speed, noting the truck rpm, transmission, gear, and rear axle
setting that provides best operation at the required speed
Whenever a repeat of the distribution rate is called for with a previously recorded bar length, it is only
necessary to reset the pump discharge rate to the corresponding engine rpm with unit stationary (All other
settings must also correspond )
Use a different table for each distribution rate. In time, all necessary settings will be recorded
The portable burner is used to heat components containing bitumen other than the storage tank, e g, bituminious pump,
spray bar, plumbing, etc.
Portable Burner Controls and Instruments.
Portable Burner Pressure Gage The portable burner pressure gage (4, fig. 2-21) is located on the top of
the portable burner fuel tank (6). This gage is graduated in 5 psi divisions from 0 to 60 psi. The normal operating
pressure is 45 psi.