Toro Reelmaster 5510 - Page 455

TestingtheTemperatureSender(continued)
CAUTION
Ensureengineiscoolbeforeremovingthetemperaturesenderfrom
engine.
g228834
Figure267
4.Putsenderinacontainerofoilwithathermometerandslowlyheattheoil
(Figure267).
CAUTION
Handlethehotoilwithextremecaretopreventpersonalinjuryorre.
Note:Priortotakingresistancereadingswithadigitalmultimeter,shortthe
metertestleadstogether.Themeterwilldisplayasmallresistancevalue
(usually0.5ohmsorless)duetotheinternalresistanceofthemeterand
testleads.Subtractthisvaluefromthemeasuredvalueofthecomponent
youaretesting.
5.Checkresistanceofthesenderwithamultimeter(ohmssetting)asthe
temperatureincreasesandrecordmeasuredresistancevalues.Compareto
specicationsbelow.Replacesenderifspecicationsarenotmet.
OilTemperatureTemperatureSenderResistance
20°C(68°F)
11.4to13.6Kohms
60°C(140°F)
2.3to2.6Kohms
100°C(212°F)
0.6to0.7Kohms
6.Whentemperaturesendertestingiscomplete,installtemperaturesenderto
thewaterange.
A.Cleanthreadsofwaterangeandtemperaturesender.Applythread
sealanttothethreadsofthesender.
B.Screwsenderintothewaterangeuntilitisngertight.Then,tighten
senderanadditional2to3fullturns.
C.Connectwireharnessconnectortosender.
7.Fillenginecoolingsystem.
8.Closeandsecurehood.
Reelmaster
®
5410/5510/5610Series
Page7–99
ElectricalSystem:TestingtheElectricalComponents
15216SLRevC