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Shark 808/1010 • Rev. 7/02
High Limit Hot Water Thermostat
For safety, each machine is equipped with a high limit
control switch. In the event the temperature of the water
should exceed its operating temperature, the high limit
control will turn the burner off until the water cools.
Pumps
Use only SAE 30W non-detergent oil. Change oil after
first 50 hours of use. Thereafter, change oil every three
months or at 500 hour intervals. Oil level should be
checked by using the dipstick found on the top of the
pump or by the red dot visible through the oil gauge
window. Oil should be maintained at that level.
Cleaning of Coils
In alkaline water areas, lime deposits can accumulate
rapidly inside the coil pipes. This growth is increased by
the extreme heat buildup in the coil. The best prevention
for liming conditions is to use high quality cleaning
detergents. In areas where alkaline water is an extreme
problem, periodic use of De-liming Powder will remove
lime and other deposits before coil becomes plugged.
Removal of Soot In 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 coil has been removed
using the following steps:
1. Remove the tank head assembly by unscrewing the
three tek screws and lifting the tank head off.
2. Remove the two pipe nipples and associated fittings.
3. Lift the coil out of the outer wrap.
CAUTION: The coil weighs about 80 lbs. Use proper
lifting techniques.
4. Clean, repair and replace the coil by reversing the
above steps.
Pressure Relief Valve
Each machine is equipped with a relief valve to relieve
pressure in the system when higher than normal operating
pressures are encountered. Unusually high pressures
come from an object plugging the spray nozzle. This
problem can easily be remedied by removing the
obstruction. If operating pressure of machine is found to
be normal and the relief valve continues to leak replace
the valve.
CAUTION: This relief valve must be discharged at least
once per year by turning the adjustment screw coun-
terclockwise.
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.
Fuel
Use clean fuel oil that is not contaminated with water and
debris. Replace fuel filter and drain tank every 100 hours
of operation. Use Kerosene #1 or #2 Heating Fuel (ASTM
D306) or diesel fuel only.
NEVER
use gasoline in your
burner tank. Gasoline is more combustible than fuel oil
and could result in a serious explosion.
NEVER
use
crankcase or waste oil in your burner. Fuel machine
malfunction could result from contamination.
Ignition Circuit
Periodically inspect wires, spring contact and electrodes
for condition, security and proper spacing.
For
transformer test (CAUTION 10,000 VOLTS)
use defect
free insulated screwdriver and keep fingers off blade! Lay
blade across one contact: OK if arc will span 1/2" between
end of blade and other contact.
Electrode Setting: Wayne
(See figure below)
Figure 3 - Electrodes Setting
Electrode Setting: Beckett
(See figure below)
GAP
1/8"
3/8"
1/2"
3/16"
1/8"
NOZZLE
ADAPTER
SIDE VIEW
TOP VIEW
ELECTRODES
2-7/8"
Figure 3a - Electrodes Setting
5/16"
5/32" GAP
END VIEW
ELECTRODE
SIDE VIEW
1/16"
