Landa SLT6-32624E Operator's Manual page 18

Removal of Soot and Heating Coil:
In the heating process, fuel residue in the form of soot
deposits may develop between the heating coil pipe
and block air flow which will affect burner combustion.
When soot has been detected on visual observation,
the soot on the coil must be washed off after following
the coil removal steps (See Coil Removal page).
Rupture Disk:
If pressure from pump or thermal expansion should
exceed safe limits, the rupture disk will burst allowing
high pressure to be discharged through hose to ground.
When the disk ruptures it will need to be replaced.
Torque new rupture disk to 35 ft. lbs.
Fuel:
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 per-
formance 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.
All burner combustion system designs are geared
toward the use of commercial grade diesel fuels. As
such, use of fuels other than those designated "DF",
i.e. DF2 (No. 2 Diesel Fuel), will result in degradation
of performance and/or reduction in component life. It
is understood that applications in certain situations re-
quire the use of fuels other than No. 2 diesel fuel. See
list of various fuels and comments pertaining to each.
Diesel engines are designed to operate on No. 2 diesel
fuel. However, some geographical areas, change the
diesel fuel supply depot to No. 1 diesel fuel in the winter
months because of the col 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 recom-
mend 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 rec-
18
ommended for broad range commercial applications.
MAINTENANCE & SERVICE
Landa SLT/SLX Kubota Diesel Operator Manual • 9.807-540.0 • Rev. 6/13
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 situation, thereby eliminating high and low water
temperatures 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.
Fuel Quality / Storage
No. 1 and No. 2 diesel fuel degrades with time. No. 2 die-
sel fuel has a storage life of approximately one (1) year.
No. 1 diesel fuel has a maximum storage life of two (2)
years. Further, storage of diesel fuel in contaminated
storage tanks can lead to excessive impurities within
the stored fuel. As such, aged or contaminated diesel
fuel should not be used. Aside from the specifications
listed above, fuel measured to have total insolubles >
1 mg/100mg, organic material > 1 mg/100 ml or rust/
mineral matter > 2mg/ml should not be consumed in
diesel engines.
Fuel Grade/Type
No. 2 Diesel Fuel (DF2)
No. 2-DS15
No. 1 Diesel Fuel (DF1)
No. 1-D S15
JP 4 Turbine Fuel
Comments
Recommended fuel
type for normal ambient
operation
Recommended fuel
type for cold weather
operation in ambients
which would result
in DF2 "waxing".
No degradation in
performance or engine/
component life.
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.
Continued next page