Operator`s manual

SHARK SSD DIESEL • #97-6167 • REV. 7/05
13
PRESSURE WASHER
OPERATOR’S MANUAL
MAINTENANCE
Removal of Soot from Heating Coil:
In the heating process, fuel residue in the form of soot
deposits may develop between the heating coil pipes,
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 on page 14).
Rupture Disk:
If pressure from pump or thermal expansion should ex-
ceed safe limits, the rupture disk will burst allowing high
pressure to be discharged through hose to ground.
When disk ruptures it will need to be replaced.
Fuel:
Use clean fuel oil that is not contaminated with water
and debris. Replace fuel filter and drain the tank every
100 hours of operation.
Use No.1 or No 2 Heating Oil (ASTM D306) only. NEVER
use gasoline in your diesel fuel tank. Gasoline is more
combustible than fuel oil and could result in a serious ex-
plosion. NEVER use crankcase or waste oil in your burner.
Fuel unit malfunction could result from contamination.
Fuel Control System:
This machine utilizes a fuel solenoid valve located on the
fuel pump to control the flow of fuel to the combustion
chamber. The solenoid, which is normally closed, is acti-
vated 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 situa-
tion, thereby eliminating high and low water temperatures
and the combustion smoke normally associated with ma-
chines incorporating a spray gun. Periodic inspection, to
insure that the fuel solenoid valve functions properly, is
recommended. This can be done by operating the ma-
chine and checking to see that the burner is not firing
when the spray gun is in the OFF position.
Fuel Pressure Adjustment:
To control water temperature, adjust fuel pressure by turn-
ing the regulating pressure adjusting screw clockwise to
increase, counterclockwise to decrease. Do not exceed
200 psi. NOTE: When changing fuel pump, a bypass
plug must be installed in return port or fuel pump will not
prime.
Burner Nozzle:
Keep the tip free of surface deposits by wiping it with a
clean, solvent saturated cloth, being careful not to plug
or enlarge the nozzle. For maximum efficiency, replace
the nozzle each season.
Air Adjustment:
Machines are preset and performance tested at the fac-
tory - elevation 100'. A one-time initial correction for your
location will pay off in economy, performance, and ex-
tended service life. If a smoky or eye-burning exhaust
is being emitted from the stack, two things should be
checked. First, check the fuel to be certain that kero-
sene or No. 1 home heating fuel is being used. Next,
check the air adjustment on the burner.
To adjust: start machine and turn burner ON. Loosen
two locking screws found in the air shutter openings
(refer to illustration) and close air shutter until black
smoke appears from burner exhaust vent. Note air band
position. Next, slowly open the air shutter until white
smoke just starts to appear. Turn air shutter halfway
back to the black smoke position previously noted.
Tighten locking screws.
If the desired position cannot be obtained using only
the air shutter, lock the air shutter in as close a position
as can be obtained, then repeat the above procedure
on the air band setting.
Gap
1/8"
1/8"
3/8"
1/2"
3/16"
Top View Side View
Nozzle
Adapter
2-7/8"
Periodically Check Wiring Connections. If Necessary
To Adjust Electrodes, Use Diagram.
Electrodes
Electrode Setting: Beckett
Electrode Setting: Wayne
1/16"
5/16"
Nozzle
5/32" Gap
Electrode
Top View Side View