GASOLINEVEHICLE-ELECTRICAL
COMPONENTSStarter/Generator
19
-
+
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK 5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
1
3
2
1.200OhmsSetting2.Commutator3.ArmatureShaft
497
Figure19-11ArmatureGroundTest
VISUALINSPECTIONOFFIELDCOILS
Iftheinsulationontheeldcoilsappearsblackenedorcharred,theserviceabilityofthecoilsisquestionable.Burned
orscorchedcoilinsulationindicatesthestarter/generatorhasoverheatedduetooverloadsorgroundedorshortedcoil
windings.Besuretheinsulatorsaretightinthehousing.
STARTER/GENERATORREWORK
Anyreworkmustbeperformedbyaqualiedtechnician.Starter/generatorservicespecicationsarelistedin
thefollowingtable.
_
ITEM
SERVICELIMIT
Commutatordiameter(minimum)1.60in.(41mm)
Concentricwitharmatureshaftwithin0.002in.(0.051mm)
Minimumcommutatordiameterforreslotting1.65in.(42mm)
Undercut(Commutatormusthaveaminimumdiameterof1.65in(42mm)for
reslotting):
0.050in.(1.3mm)
Dielectricstrength
500VACforoneminute
Armatureinsulationresistance0.2M(ohms)at500VDC
Startereldcoilresistance
0.006to0.01ohms
Generatoreldcoilresistance4.5to5.5ohms
STARTER/GENERATORASSEMBLY
1.Slidethebearingretainer(32)ontotheoutputendofthearmatureshaft(33)(Figure19-6,Page19-5).
2019PrecedentVillager2MaintenanceandServiceManualPage19-9