Toro TX 525 - Engine Performance Issues; Engine Overheating Troubleshooting; Engine Loses Power Troubleshooting; Excessive Black Exhaust Smoke

Problem
PossibleCauseCorrectiveAction
1.Morecoolantisneeded.
1.Checkandaddcoolant.
2.Thereisrestrictedairowtothe
radiator.
2.Inspectandcleantheradiatorscreen
witheveryuse.
3.Thecrankcase-oillevelisincorrect.3.FillordraintotheFullmark.
4.Theengineloadisexcessive.4.Reducetheload;usealowerground
speed.
5.Incorrectfuelisinthefuelsystem.5.Drainandushthefuelsystem;add
freshfuel.
6.Thethermostatisdamaged.
6.ContactyourAuthorizedService
Dealer.
7.Thefanbeltislooseorbroken.7.ContactyourAuthorizedService
Dealer.
8.Injectiontimingisincorrect.
8.ContactyourAuthorizedService
Dealer.
9.Thecoolantpumpisdamaged.
9.ContactyourAuthorizedService
Dealer.
Theengineoverheats.
10.Theenginerpmistoolow.
10.Checkthehighidlespeed.
1.Theengineloadisexcessive.1.Reducetheload;usealowerground
speed.
2.Thecrankcase-oillevelisincorrect.2.FillordraintotheFullmark.
3.Theair-cleanerltersaredirty.3.Servicetheairlters.
4.Dirt,water,stalefuel,orincorrectfuel
isinthefuelsystem.
4.Drainandushthefuelsystem;add
freshfuel.
5.Theengineisoverheating.
5.Referto“Theengineoverheats.”
6.Thespark-arrestorscreenisclogged.
6.Cleanorreplacethespark-arrestor
screen.
7.Thereisairinthefuel.
7.Bleedthenozzlesandcheckforair
leaksatfuelhoseconnectionsand
ttingsbetweenthefueltankand
engine.
8.Thereislowcompression
8.ContactyourAuthorizedService
Dealer.
9.Thefuel-tankventisrestricted.
9.ContactyourAuthorizedService
Dealer.
10.Theinjection-pumptimingisincorrect.
10.ContactyourAuthorizedService
Dealer.
11.Theinjectionpumpisdamaged.
11.ContactyourAuthorizedService
Dealer.
Theenginelosespower.
12.Theenginehighidlespeedistoolow.
12.ContactyourAuthorizedService
Dealer.
1.Theengineloadisexcessive.1.Reducetheload;usealowerground
speed.
2.Theair-cleanerltersaredirty.2.Servicetheairlters.
3.Incorrectfuelisinthefuelsystem.
3.Drainandushthefuelsystem;add
freshfuel.
4.Theinjection-pumptimingisincorrect.
4.ContactyourAuthorizedService
Dealer.
5.
Theinjectionpumpisdamaged.
5.
ContactyourAuthorizedService
Dealer.
Exhaustproducesexcessiveblacksmoke.
6.
Theinjectionnozzlesaredamaged.
6.ContactyourAuthorizedService
Dealer.
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