16
Maintenance
Fuel
CAUTION: Use Low Sulfur Fuel diesel only.
ATTENTION: Utiliser du carburant à faible teneur en
soufre seulement.
Diesel fuel must be clean, fresh, meet fuel specifica-
tions and be sourced from a known and reputable
supplier. Clean, fresh and properly specified diesel fuel
will provide assurances of maximum engine perfor-
mance and maximum fuel injection system longevity.
The use of out-of-spec, dirty or questionable quality
diesel fuel will result in engine performance and start
ability problems as well as reductions in engine and fuel
injection system life.
Use clean fuel oil that is not contaminated with water
and debris. Replace fuel filter and drain tank every 100
hours of operation.
The fuel tank is for both the engine and burner. The
engine requires specific fuel recommendations which
should be used for both engine and burner.
Diesel engines are designed to operate on Ultra Low
Sulfur Diesel fuel. However, some geographical areas,
change the diesel fuel supply depot to No. 1 diesel fuel
in the winter months because of the cool winter
temperatures. No. 2 diesel fuel provides maximum
viscosity and lubricity but can have "waxing" problems
at lower temperatures. We expressly recommend the
use of No. 2 diesel fuels when temperatures are at or
above 14°F. We recommend that No. 1 diesel fuel be
used when temperatures are at or below 14°F. The use
of either EPA-high sulfur, off-highway diesel fuel or
EPA-low sulfur, on-highway fuel for non-CARB certified
engines is allowed. CARB certified engines must
consume only EPA-low sulfur diesel fuels conforming to
EPA 40 CFR 86-113-94.
We do not recommend the use of "heating oil", blended
fuel/waste engine oil or low grade diesel fuel of any
kind. The use of aviation fuels - JP4, JP5 or JP8 must
be approved on an application basis and is not recom-
mended for broad range commercial applications.
Fuel Control System
This machine utilizes a fuel solenoid valve located on
the fuel pump to control the flow of fuel to the combus-
tion chamber. The solenoid, which is normally closed, is
activated by a flow switch when water flows through it.
When the operator releases the trigger on the spray
gun, the flow of water through the flow switch stops,
turning off the electrical current to the fuel solenoid.
The solenoid then closes, shutting off the supply of fuel
to the combustion chamber. Controlling the flow of fuel
in this way gives an instantaneous burn-or-no-burn situ-
ation, thereby eliminating high and low water tempera-
tures and the combustion smoke normally associated
with machines incorporating a spray gun. Periodic
inspection, to insure that the fuel solenoid valve
functions properly, is recommended. This can be done
by operating the machine and checking to see that the
burner is not firing when the spray gun is in the OFF
position.
Component failure that can be directly attributed to the
use of fuels other than those recommended cannot be
covered under warranty.
Fuel Pressure Adjustment
To adjust fuel pressure, First install a pressure gage
into the port just after the pump fuel exit. Turn the
adjusting screw (located at the regulator port)
clockwise to increase, and counterclockwise to
decrease. Do not exceed 200 psi or lower the pressure
below 130 PSI, when checked at the post-pump
pressure port.
Fuel Grade/Type
Comments
No. 2 Diesel Fuel (DF2)
No. 2-DS15
Recommended fuel type
for normal ambient
operation
No. 1 Diesel Fuel (DF1)
No. 1-D S15
Recommended fuel type
for cold weather operation
in ambients which would
result in DF2 "waxing". No
degradation in perfor-
mance or engine/
component life.
JP 4 Turbine Fuel
Not recommended. JP4
should be used only in
emergency situations. JP
4 severely reduces engine
life and potential power
due to the lack of lubricity
as compared to DF2.
Fuel Grade/Type
Comments
JP 8 Turbine Fuel
5-12% reduction in power
and up to 30% reduction in
fuel system component
and cylinder life.
JP 5 Turbine Fuel
Refer to JP 8
DF A Arctic
Acceptable fuel for use in
sub-zero ambients only.
Landa SLT/SLX Kubota Diesel Operator’s Manual 9.807-540.0 - E
Summary of Contents for SLT Series
Page 26: ...9 807 540 0 Printed in U S A...
