Alternator Stator; Exciter Coils Testing; Battery Charge Coils Testing; Alternator Output Test - Polaris 1999 Sportsman 400 Service Manual

ELECT RICAL SYSTE:\I
ALTE RNAT O R STATO R
Procedures for removing an d installing the alter-
nator rotor are covered in Cha pter Five.
Exciter Co ils Test ing
I. Place the vehicle on level ground and set the
parking brake .
2. Remove the seat and front fender as described in
C hapte r Fifteen.
3. Follow the electrical harness from the alternator
to the location where it connects to the CO l unit
(F igure 6).
4. Disconnect the three-pin electrical connector
from thc COL
5. Connect an ohmmetcr between the following
wire s in the three-pin stator connector and compare
the resistance to the specification in Ta ble
l.
a. The red and green termin als.
b. The black/red and green tcnninaIs.
6. Replace the stator assembly if thc resistance is
not as specified.
309
7. Apply dielectric grease to the electri cal connec-
tor and reconnect
it.
Battery C h a r ge C uils Tcsting
I. Place thc
vehic le on leve l gro und and set the
parking brake.
2. Remove the front fender cove r as desc ribed in
Chapter Fifteen,
3. Fo llow the elec trical harness from the alternator
to the location where
it
connects to the voltage regu-
lator.
4. Disconn ect the two indi vidual yellow and the
yellow/red electrica l co nnectors from the vo ltage
regulat or (Figu re 7).
5. Connect an ohmmeter to the wires indicated in
Ta b le 1 and note the resistance .
6. Replace the stator assembly if the resistance is
not as spec ified.
7. Apply dielectric grease to the electrica l connec-
tors and reco nnect them .
Alternator Output Test
I.
Place the vehicle on level ground and set the
park ing brak e.
ro-..,
2. Remo ve the front fender front cover as described
in Chapter Fifteen.
3. Follow the e lectrical harne ss from the alternator
to
the locati on wher e
it
co nnects
to
the voltage regu -
lator.
4. Disconnect the
1'\'0
ind ividual ye llow and the
yellow/red electri cal co nnectors from the vol tage
regulator (F igure 7).
5. Connec t an AC ammeter to the yellow and the
yellow/red stator wire s leadin g from the alternator.
6. Shin the transmission into neutral.
CAUTION
Do
1101
s tart the engine with the elec-
tric starter; as the ammeter will be
damaged.
CAUTION
Do
11 01
conduce this test fo r longer
than J 0-/5 seconds,
tl..'.
the alternator
windings may overheat.
7. Start the engi ne with the recoil sta rter and let
idle.