Rosco Maximizer 3B, Operation And Service Manual, Page: 68 / 364

6-12 Rosco Maximizer 3B Asphalt Distributor
Operation
LPG Burner Manual Ignition
Before operating the propane burner system become
familiar with the position, function and operation of each
control in the system, (
Figure 5-5
,
Figure 6-8
).
Before heating asphalt material with
all applicable systems and safety precautions, (see
General Information in Section 4) .
Run the burners for short periods
of time (15 minutes ON, 15 minutes OFF) to allow
the heat to dissipate through the material. This will
prevent damage to the flue liner.
1. Be sure the unit is sitting on a level area.
2.
With a flash light, look into the tank from the top
and check that there is no water or condensation
in the bottom of the tank. If there is, drain the tank
to an approved container before heating. Dispose
of material and water according to local, state and
federal regulations.
Do not put your head in the tank.
Serious injury or death could result from breathing
poisonous fumes.
DO NOT SMOKE around the machine.
Fuel, asphalt material and the fumes from both
can explode when exposed to flame or heat from
smoking or other sources.
Hot material will turn water into steam
and can cause an explosion.
3. Be sure that flue tubes are covered by at least 8
inches of material. Read the tank dipstick. If the
amount in the tank is less than the recommended
amount in
Table 6-3. Tank Contents Chart to
Ensure Flue Tube Coverage , do not use the
burners. Using the burners without enough material
in the tank will cause damage to the flue tubes and
could cause an explosion.
Never operate the burners if the flue
tubes are not covered with at least 8” of material. The
flue tubes can become red hot and ignite the vapors
causing an explosion.
4. Do not load, unload, transport or spray while
burners are operating.
High Temperature Limit Control
NOTE: This feature is designed as a safety feature only.
It is not to be used for thermostatic control.
This feature causes the burners to automatically shut
off when the high temperature limit is reached, (
Figure
6-11 ).
NOTE: Burner Control switch is a momentary switch and
will return to the OFF position. An icon will display
on the screen when the Burner Control switch
has enabled the burner system controls.
Until the material cools to less than the set temperature,
the burners will not relight. This feature helps to prevent
overheating the material.
DO NOT leave the unit unattended
while heating material. Monitor the Controller
display temperature, as well as the dial or pencil
thermometer, to insure that all equipment is
functioning properly and that the material does not
heat beyond the required spraying temperature,
(see Guideline Temperatures For Liquid Asphalts in
Section 4).
Diesel Burner Extinguishing
1. Turn fuel switch on the fender controls OFF.
2.
Wait 3 to 5 minutes to allow the blower to cool the
flue and the burner. Turn blower switch on the
fender controls OFF.
3. Wait 5 minutes before relighting burners.
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