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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

Toro 03606A Service Manual

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