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22

Maintenance

PROBLEM

POSSIBLE CAUSE

SOLUTION

WATER 

TEMPERATURE 

TOO HOT

Incoming water to machine warm or 
hot

Lower incoming water temperature.

Fuel pump pressure too high

Readjust fuel pressure.

Fuel pump defective

Replace fuel pump.

Detergent line sucking air

Tighten all clamps. Check detergent line for holes.

Defective high limit switch

Replace.

Incorrect fuel nozzle size

See exploded view parts list for proper size.

Insufficient water supplied

Check GPM to machine.

Restricted water flow

Check nozzle for obstruction and proper size.

PUMP MOTOR 

STOPS AFTER A 

FEW MINUTES OF 

OPERATION OR 

STARTS SLOW

Insufficient voltage

Use heavier drop cord and check voltage at recep-
tacle. Check name plate for amperage draw.

Plugged nozzle

Remove and clean nozzle. Turn on water pump and 
flush lines, replace nozzle.

Wrong spray nozzle

See serial plate for minimum nozzle size.

Automatic overload switch tripped

Allow motor to cool - switch will automatically reset.

Motor wet

Allow to dry.

Short in electrical wiring

Wire contacts should be clean and tight. No breaks in 
wires.

Coil liming up causing excessive 
pressure

See section on Preventative Maintenance.

Water pump low or out of oil causing 
the pump to bind up

Fill to correct level.

RELIEF VALVE 

LEAKS OR 

SPRAYS OUT 

WATER

Spray nozzle plugged

Remove nozzle and clean out obstruction.

Mis-adjusted or defective relief valve Adjust or replace as needed.

Scale or dirt plugging inside of coils

See "Preventative Maintenance Cleaning of Coils."

DETERGENT NOT 

DRAWING

Air leak

Tighten all clamps. Check detergent lines for holes.

Detergent metering valve packing 
not tight or packing worn

Tighten nut. Replace valve or packing.

Filter screen on detergent suction 
hose plugged

Clean or replace.

Dried up detergent plugging metering 
valve or injector

Clean and flush.

Restrictor in float tank missing

Install restrictor.

High viscosity of detergent

Dilute detergent to specifications. Read detergent 
label.

Landa PHW Operator’s Manual   8.917-417.0 - D

Содержание 1.109-078.0

Страница 1: ...a y gun and wand SUP ERF ICIE S CAL IENT ES Use solam ente las rea s aisla das del gatill o y la lanza SUR FAC ES CHA UDE S Touc her seule men t les parti es isol es des poig n e pisto lets et lance s...

Страница 2: ...2 Landa PHW Operator s Manual 8 917 417 0 D Machine Data Label...

Страница 3: ...nce 14 Maintenance And Service 14 Pump Lubrication 14 Fuel 14 Electrode Setting 14 Transformer Check 14 Fuel Control System 14 Fuel Pressure Adjustment 14 Wayne Oil Burner 15 Fuel Pressure Adjustment...

Страница 4: ...preventive main tenance to keep the machine and its components in good working condition They are listed in this general order Preventative Maintenance Maintenance And Service Pump Lubrication Fuel B...

Страница 5: ...he operator in the operator s native language by the purchaser owner making sure that the operator comprehends its contents Owner and or user must study and maintain for future reference the manufactu...

Страница 6: ...fi NE JAMAIS utiliser un adaptateur avec ce produit WARNING Keep wand hose and water spray away from electric wiring or fatal electric shock may result AVERTISSEMENT Garder la lance le boyau et le jet...

Страница 7: ...nes ou des animaux car cela risquerait de causer des blessures graves ou m me la mort WARNING This machine produces hot water and must have insulated components attached to protect the operator AVERTI...

Страница 8: ...utiliser l int rieur m me si les fen tres et les portes sont ouvertes 17 Avoid installing machines in small areas or near exhaust fans Adequate oxygen is needed for combustion or dangerous carbon mono...

Страница 9: ...art unit turn switc h on gr ip wan d se curel y and trigg er spra y gun 7 To hea t wate r turn burn er switc h on 8 To app ly dete rgen t see Ope rator s Man ual 9 To shut dow n mac hine turn burn er...

Страница 10: ...must be used refrain from using 90 bends If the pipe can not go straight up then use only 45 bends and go to the next larger size pipe The overall pipe length must not exceed 6 feet in length Air adju...

Страница 11: ...p en flam e ch is pe rm it t sp ray ids ARNING AV ER TISS EM EN T RIE SG O DE EX PL OS IO N Us e el pro du cto en re as do nd e el fue go llam a se an pe rm itid os No roc ie liqu i do s infl am ab le...

Страница 12: ...ater Place detergent suction tube directly into cleaning solution and apply to surface at low pressure for best results limit your work area to sections approximately 6 feet square and always apply de...

Страница 13: ...f frozen FREEZE DAMAGE IS NOT COVERED BY WARRANTY ATTENTION Toujours entreposer la laveuse pression dans un endroit o la temp rature ne sera pas inf rieure X C X F La pompe sur cette machine est susce...

Страница 14: ...uel tank and replace fuel filter every 100 hours of opera tion Electrode Setting Ignition Circuit Periodically inspect wires spring contact and elec trodes for condition security and proper spacing Tr...

Страница 15: ...et can impact fuel flow In more extreme tempera tures this local site adjustment may also require different fuel nozzles for fuel inlet temperatures that are at seasonal extremes higher or lower in lo...

Страница 16: ...mage due to freezing is not covered by warranty Adhere to the following cold weather procedures whenever the washer must be stored or operated outdoors under freezing conditions During the winter mont...

Страница 17: ...valve is installed next to the inlet side of the pump that will open in the event the water tempera ture exceeds 140 F Therefore while operating the machine do not leave the spray gun closed for an e...

Страница 18: ...e more often under severe conditions Maintenance Schedule Replace Fuel Lines Annually Pump Oil 10W 40 Non Foaming Inspect Daily inspect the oil level Change After first 50 hours then every 500 hours o...

Страница 19: ...Oil Change Record DateOilChanged Month Day Year Estimated Operating Hours Since Last Oil Change DateOilChanged Month Day Year Estimated Operating Hours Since Last Oil Change Landa PHW Operator s Manua...

Страница 20: ...tage of building and compare with require ments Obtain a different power source Detergent metering valve left open sucking air or faulty metering valve Close and or replace metering valve BURNER WILL...

Страница 21: ...tank and replace contaminated fuel Improper air adjustment Readjust air bands on burner assembly Low fuel pressure Adjust higher Air leaks in fuel lines Check fuel lines for leaks or air bubbles Tight...

Страница 22: ...itch tripped Allow motor to cool switch will automatically reset Motor wet Allow to dry Short in electrical wiring Wire contacts should be clean and tight No breaks in wires Coil liming up causing exc...

Страница 23: ...fective Replace valve Particle next to poppet Remove internal parts and clean BURNER STAYS ON WHEN SPRAY GUN IS IN OFF POSITION Fuel pump pressure too high Readjust fuel pressure Pressure switch defec...

Страница 24: ...retainer worn Check and replace if necessary Cracked ceramics Check and replace if necessary OIL DRIPPING Oil seal worn Check and replace if necessary Cracked manifold Check and replace if necessary...

Страница 25: ...ISCHARGE LINE DURING BYPASS MODE Pressure adjustment too tight Call your local dealer Restricted bypass line Bypass line should be 1 2 inside diameter I D 12 long and of low pressure flexible hose Flo...

Страница 26: ...8 917 417 0 Printed in U S A...

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