Landa PGHW5-5000, Руководство оператора

Страница: 17 / 38

LANDA PGHW 5-5000 • 8.913-928.0 • REV. 3/13
17
PRESSURE
W
ASHER
Tr
oub
leshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
BURNER WILL
NOT LIGHT
(Continued from
previous page) Fuel not reaching
combustion chamber Check fuel pump for proper flow. Check
solenoid flow switch on machines with spray
gun control, for proper on-off fuel flow control.
Clogged burner nozzle Clean as required.
Thermostat faulty or slow engine
speed Increase engine RPM to increase voltage.
Flow switch malfunction Remove, test for continuity and replace as
needed.
Flow solenoid malfunction Replace if needed.
FLUCTUATING
PRESSURE
Valves worn Check and replace if necessary.
Blockage in valve Check and replace if necessary.
Pump sucking air Check water supply and air seepage at joints in
suction line.
Worn piston packing Check and replace if necessary.
Gasoline Engine Altitude The gasoline engine is preset for operation at
altitudes below 1000 feet above sea level. If
operated at higher altitudes, it may be neces-
sary to install a high altitude main jet in the
carburetor. Contact your local authorized
engine sales and service center for details.
MACHINE
SMOKES Improper fuel or water in fuel Drain tank and replace contaminated fuel.
Improper air adjustment Readjust air bands on burner asssembly.
Low fuel pressure Adjust fuel pump pressure to specifications.
Plugged or dirty burner nozzle Replace nozzle.
Faulty burner nozzle spray pattern Replace nozzle.
Heavy accumulation of soot on coils
and burner assembly Remove coils and burner assembly, clean
thoroughly.
Obstruction in smoke stack Check for insulation blockage or other foreign
objects.
Low engine RPM Increase RPM.
LOW WATER
TEMPERATURE
Improper fuel or water in fuel Replace with clean and proper fuel.
Low fuel pressure Increase fuel pressure.
Weak fuel pump Check fuel pump pressure. Replace pump if
needed.
Fuel filter partially clogged Replace as needed.
Soot build-up on coils not allowing
heat transfer Clean coils.
Improper burner nozzle See specifications.
WATER
TEMPERATURE
TOO HIGH Incoming water to machine warm or
hot Lower incoming water temperature.
Fuel pump pressure too high See specifications for proper fuel pressure.
Fuel pump defective Replace fuel pump.
Detergent line sucking air Tighten all clamps. Check detergent lines for
holes.
Defective temperature switch Replace.