Landa PGHW series Operator's Manual

Also see for 1.110-045.0: Operator's manual

Landa PGHW series Operator's Manual Manual pdf 18 page image

18MaintenanceTroubleshootingPROBLEM POSSIBLE CAUSE SOLUTIONLOWOPERATINGPRESSUREFaulty pressure gauge Install new gauge.Insufficient water supply Use larger supply hose; clean filter at water inlet.Old, worn or incorrect spraynozzleMatch nozzle number to machine and/or replacewith new nozzle.Belt slippage Tighten or replace; use correct belt.Plumbing or hose leak Check plumbing system for leaks. Re-tape leakswith teflon tape.Faulty or mis-adjusted unloadervalveAdjust unloader for proper pressure. Install repair kitwhen needed.Worn packing in pump Install new packing kit.Fouled or dirty inlet or dischargevalves in pump Clean inlet and discharge valves.Worn inlet or discharge valves Replace with valve kit.Obstruction in spray nozzle Remove obstruction.Leaking pressure control valve Rebuild or replace as needed.Slow engine RPM Set engine speed at proper specifications.Pump sucking air Check water supply and possibility of air seepage.Valves sticking Check and clean or replace if necessary.Unloader valve seat faulty Check and replace if necessary.BURNERWILLNOT LIGHTLittle or no fuel Fill tank with fuel.Improper fuel or water in fuel Drain fuel tank and fill with proper fuel.Clogged fuel line Clean or replace.Plugged fuel filter Replace as needed.Mis-adjusted burner air bands Readjust air bands for clean burn.Little or no fuel pressure from fuelpumpIncrease fuel pressure to specification and/orreplace fuel pump. Test with pressure gauge.Faulty burner transformer Test transformer for proper arc between contacts.Replace as needed.(continued on nextpage)Disconnected or short in electricalwiringAll wire contacts should be clean and tight. Nobreaks in wireLanda PGHW Operator’s Manual 8.916-485.0 - Y