18 Section 6— Maintenance & adjuStMentS
Nozzle Cleaning
Ifthenozzlebecomescloggedwithforeignmaterials,suchas
dirt,excessivepressuremaydevelop.Ifthenozzlebecomes
partiallycloggedorrestricted,thepumppressurewillpulsate.
Cleanthenozzleimmediatelyusingthenozzlekitsuppliedand
thefollowinginstructions:
1. Shutoffthepressurewasherandturnoffthewatersupply.
2. Pulltriggerongunhandletorelieveanywaterpressure.
3. Disconnectthespraywandfromthegun.
4. Removethehighpressurenozzlefromthespraywand.
Removeanyobstructionswiththenozzlecleaningtool
providedandbackflushwithcleanwater.
Figure 6-2
5. Directwatersupplyintonozzletobackflushloosened
particlesfor30seconds.
6. Reassemblethenozzletothewand.
7. Reconnectspraywandtogunandturnonwatersupply.
8. Startpressurewasherandplacespraywandintohigh
pressuresettingtotest.
Clean The Water Inlet Filter
Thisscreenfiltershouldbecheckedperiodicallyandcleanedif
necessary.
1. Removefilterbygraspingendandremovingitfromwater
inletofpump.
2. Cleanfilterbyflushingitwithwateronbothsides.
3. Re-insertfilterintowaterinletofpump.
NOTE: Convexsidefacesout.
Figure 6-3
NOTE: Donotoperatethepressurewasherwithoutfilter
properlyinstalled.
Engine Care
Alistofkeyenginemaintenancejobsrequiredforgood
performancebythepressurewasherisgivenbelow.Followthe
accompanyingenginemanualforadetailedlistandinstructions.
• Maintainoillevelasinstructedinenginemanual.
• Serviceaircleanerasinstructedinenginemanual.Clean
everyfewhoursunderextremelydustyconditions.Poor
engineperformanceandfloodingusuallyindicatesthatthe
aircleanershouldbeserviced.Toservicetheaircleaner,
refertotheenginemanual.
• Cleansparkplugandresetthegaponceaseason.Spark
plugreplacementisrecommendedatthestartofeach
mowingseason.Checkenginemanualforcorrectplug
typeandgapspecifications.
• Cleanengineregularlywithaclothorbrush.Keepthe
topoftheenginecleantopermitproperaircirculation.
Removeallgrass,dirt,andcombustibledebrisfrommuffler
area.
• Enginesstoredbetween30and90daysneedtobetreated
withagasolinestabilizersuchasSTA-BIL® toprevent
deteriorationandgumfromforminginfuelsystemoron
essentialcarburetorparts.