Powerlink A713VS - Engine Troubleshooting

7.4 Engine Troubleshooting
Trouble
Causes
Remedies
1.Batteryswitchisoff.1.Turntheswitchtoon.
2.Batteryoutputisweak.2.Chargethebattery.
3.Batteryisdeteriorated.3.Changethebattery.
Startermotor
cannotdriveor
speedislow
4.Batteryterminalisloose.4.Tightentheterminal.
1.Fuelisinsufcient.
1.Checkfuelsystem,andaddfuelif
necessary.
2.Fuelhosehasleak.2.Tightenorchangefuelhose.
3.Fuellterisclogged.
3.Drainwater/sedimentorChangefuel
lter.
4.Gauzelterisclogged.4.Cleanorchangegauzelter.
Enginecannot
start
Startermotor
drives,but
enginecannot
start
5.Airismixedinfuelline.5.Extracttheair.
1.Fuelhosehasleak.1.Tightenorchangefuelhose.
2.Fuellterinthewater/fuelseparatoris
clogged.
2.Drainwater/sedimentorChangefuel
lter.
3.Gauzelterisclogged.3.Cleanorchangegauzelter.
4.Lubricantoilisinsufcient.4.Checkoillevel,addoilasrequired.
5.Airismixedinfuelline.5.Extracttheair.
Enginestartsbutstallsatonce
6.Airlterelementisclogged.6.Cleanorchangeairlterelement.
1.Fuelisinsufcient.
1.Checkfuelsystem,andaddfuelif
necessary.
2.Overheatingofmovingparts.
2.Checktoseeiflubricatingoillteris
workingproperly.
3.Airlterelementisclogged.3.Cleanorchangeairlterelement.
Outputisinsufcient
4.Injectionpumpisdefective.
4.Checkthefuelinjectionpumpelement
anddeliveryvalveassembly,replaceif
necessary.
1.Improperkindoffuelisused.1.Selectproperfuel.
2.Airlterelementisclogged.2.Cleanorchangeairlterelement.
3.Loadstotalexceedstheratedcurrent.
3.Adjusttheloadstomeettherated
output.
Muferreleasesblacksmoke
4.Accumulationofgascarbonishighon
theexhaustpipesandmufer.
4.Cleanoutgascarbon.
1.Airlterelementisclogged.1.Cleanorchangeairlterelement.
2.Lubricantoilisredundantandexceeds
thelimited.
2.Draintheredundantoil.
3.Thepistonring(s)is(are)wornout.3.Changepistonring(s).
Muferreleaseswhitesmoke
4.Largeclearancebetweencylinderand
piston.
4.Changethepistonandcylinder.
1.Fuelcontainswaterorair
1.Checkandchangethefuel,checkand
cleanthefuelsystem.
2.Injectornozzleatomizesbadly.2.RepairorchangeInjectornozzle. Muferreleasesbluesmoke
3.Thecylinderor/andgasketis
damaged.
3.Repairorchangecylinderandgasket.
CHAPTER 7 — TROUBLESHOOTING
50