Problem
PossibleCauseCorrectiveAction
1.Thebypassvalvesarenotclosed
tight.
1.Tightenthebypassvalves.
2.Thepumpbeltisworn,looseorbroken.
2.Changethebelt.
3.Thepumpbeltisoffapulley.3.Changethebelt.
4.Thereisabrokenormissingidler
spring.
4.Replacethespring.
Themachinedoesnotdrive.
5.Thehydraulicoillevelislowortoohot.5.Addhydraulicoiltoreservoirsorletit
cooldown.
1.Thecuttingblade(s)is/arebentor
unbalanced.
1.Installnewcuttingblade(s).
2.Theblademountingboltisloose.2.Tightentheblademountingbolt.
3.Theenginemountingboltsareloose.3.Tightentheenginemountingbolts.
4.Thereisalooseenginepulley,idler
pulley,orbladepulley.
4.Tightentheappropriatepulley.
5.Theenginepulleyisdamaged.
5.ContactanAuthorizedServiceDealer.
6.Thebladespindleisbent.
6.ContactanAuthorizedServiceDealer.
Themachinesvibratesabnormally.
7.Amotormountislooseorworn.
7.ContactanAuthorizedServiceDealer.
1.TheBlade(s)is/arenotsharp.1.Sharpentheblade(s).
2.Thecuttingblade(s)is/arebent.2.Installnewcuttingblade(s).
3.Themowerdeckisnotlevel.
3.Levelthemowerdeckfromside-to-side
andfront-to-rear.
4.Theundersideofmowerisdirty.4.Cleantheundersideofthemower.
5.Thetirepressureisnotcorrect.5.Adjustthetirepressure.
Themachinecutsgrassatanuneven
cuttingheight.
6.Thebladespindlebent.
6.ContactanAuthorizedServiceDealer.
1.Themower-deckbeltisworn,loose
orbroken.
1.Installanewdeckbelt.
2.Themower-deckbeltisoffapulley.
2.Installmower-deckbeltandcheckthe
idlerpulley,idlerarmandspringfor
correctpositionandfunction.
3.Thepumpdrivebeltisworn,looseor
broken.
3.Checkthebelttensionorinstallanew
belt.
Thebladesdonotrotate.
4.Theidlerspringisbrokenormissing.4.Replacethespring.
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