Troubleshooting - Landa SLT Operator's Manual

PROBLEM POSSIBLE CAUSE
LOW OPERATING Faulty pressure gauge
PRESSURE
Insufficient water supply
Old, worn or incorrect spray
nozzle
Belt slippage
Plumbing or hose leak
Faulty or misadjusted unloader
valve
Worn packing in pump
Fouled or dirty inlet or discharge
valves in pump
Worn inlet or discharge valves
Leaking pressure control valve
Slow engine RPM
Gasoline Engine Altitude
Pump sucking air
Valves sticking
Unloader valve seat faulty
BURNER WILL Little or no fuel
NOT LIGHT
Improper fuel or water in fuel
Clogged fuel line
Plugged fuel filter
Misadjusted burner air bands
Little or no fuel pressure from
fuel pump
Faulty burner transformer
Disconnected or short in
electrical wiring
Flex coupling slipping on fuel
pump shaft or burner motor shaft
On-Off switch defective
Heavy sooting on coil and burner
can cause interruption of air flow
and shorting of electrodes
Improper electrode setting
(Continued on
next page)

TROUBLESHOOTING

Landa SLT/SLX Diesel • 8.914-003.0 • Rev. 12/11
SOLUTION
Install new gauge.
Use larger supply hose; clean filter at water inlet.
Match nozzle number to machine and/or replace
with new nozzle.
Tighten or replace; use correct belt.
Check plumbing system for leaks. Retape leaks
with teflon tape.
Adjust unloader for proper pressure. Install repair
kit when needed.
Install new packing kit.
Clean inlet and discharge valves.
Replace with valve kit.
Rebuild or replace as needed.
Set engine speed at proper specifications.
The gasoline engine is preset for operation at
altitudes below 1000 feet above sea level. If
operated at higher altitudes, it may be necessary
to install a high altitude main jet in the carburetor.
Contact your local authorized engine sales and
service center for details.
Check water supply and possibility of
air seepage.
Check and clean or replace if necessary.
Check and replace if necessary.
Fill tank with fuel.
Drain fuel tank and fill with proper fuel.
Clean or replace.
Replace as needed.
Replace air bands for clean burn.
Increase fuel pressure to specifications and/or
replace fuel pump. Test with pressure gauge.
Test transformer for proper arc between contacts.
Replace as needed.
All wire contacts should be clean and tight. No
breaks in wires.
Replace if needed.
Check for electrical current reaching burner
assembly with burner switch on.
Clean as required.
Check and reset according to diagram in
Operator's Manual
11