Snowmobile Arctic Cat (2007 year). Instruction - part 53

 

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Snowmobile Arctic Cat (2007 year). Instruction - part 53

 

 

5-16

2. Install the positive cable (A) to the starter motor

and tighten securely. Secure the positive and

negative cables with cable ties as noted during

disassembling.

„ NOTE: To finalize this procedure, it is necessary
to install the air silencer. Proceed to Section 3 -
Servicing Air Silencer (1100 cc Z1) sub-section
and follow steps 3-12 of INSTALLING.

3. Install the negative cable to the battery.

Alternator

(660 cc)

„ NOTE: Prior to servicing the alternator, check
output to the battery. With the engine running,
alternator output should be 14.2-14.8 V (±10%). If
output is lower than specification, proceed to dis-
assembling and testing the alternator compo-
nents. 

DISASSEMBLING

1. Using a 3/8 in impact wrench and a 22 mm

socket, remove the alternator pulley nut; then

remove the pulley and spacer. 

AO295

AO296

2.  Remove the positive lead nut and insulator. 

AO297

3.  Remove the screws securing the dust cover; then

remove the cover. 

AO298

4. Remove the two screws securing the brush

holder assembly and the three screws securing

the voltage regulator. Remove the brush holder

and voltage regulator. 

„ NOTE: Make sure to take note of the screw loca-
tions for assembling purposes.

AO299

5-17

5

AO300

AO301

5. Remove the four cap screws securing the stator

windings to the rectifier assembly; then remove

the one screw securing the stator to the alterna-

tor housing. Remove the stator.

„ NOTE: The stator wires will have to be straight-
ened for removal.

AO302

6. Remove the two cap screws and the two nuts

connecting the two alternator housing covers.

Prior to removing the covers, make sure to make

corresponding alignment marks on the covers

for assembling purposes. 

AO303A

„ NOTE: Be sure to take note of the location of the
wave washer which is positioned in the alternator
housing outside the bearing. 

AO304

7. Using a press, remove the rotor assembly from

the alternator housing. Inspect the bearings for

roughness. 

„ NOTE: If replacement of the bearing is neces-
sary, remove the four Phillip-head screws securing
the bearing retainer located in the alternator hous-
ing. Using a suitable driver, press the bearings out
of the alternator housing. 

AO305

5-18

TESTING COMPONENTS

„ NOTE: Resistance tests of the engine electrical
components should be made using the Fluke Mul-
timeter only. Replace any component that does not
have a test value within specifications.

Rectifier (Positive Test)

1. Using an ohmmeter, connect the positive tester

probe to the B terminal and the negative tester

probe to each of the rectifier terminals. Take

note of which rectifier terminals  register conti-

nuity.

2. Reverse the tester probes and repeat the test.

Take note of which terminals register continuity. 

„ NOTE: Continuity should register in only one
direction. If there is continuity in the reverse direc-
tion on any of the terminals, replace the rectifier.  

AO306

0738-518

Alternator (Negative Test)

1. Using an ohmmeter, connect the positive tester

probe to the negative terminal and the negative

tester probe to each of the rectifier terminals.

Take note of which terminals register continuity. 

2. Reverse the tester probes and repeat the test.

Take note of which terminals register continuity. 

„ NOTE: Continuity should register in only one
direction. If there is continuity in the reverse direc-
tion on any of the terminals, replace the rectifier. 

AO342A

Brushes

1.  Measure the length of the brushes.

 

AO307

2. If the brushes measure less than the service limit

of 4.5 mm (0.178 in.), replace the brushes. 

Rotor

1. Using an ohmmeter, measure the resistance

between the two brush contacts on the end of the

armature shaft.

„ NOTE: The service resistance specifications are
2.4-3.0 ± 20%. 

2. Check the resistance between the slip ring and

the rotor. If there is continuity, the rotor is faulty

and must be replaced. 

5-19

5

AO308

Stator

1. Using an ohmmeter, test the resistance between

each field output wire and its adjacent field out-

put wire. 

„ NOTE: The resistance should register within a
range of  0.9-1.1 ohms. If the resistance does not
fall within the indicated range, the alternator must
be replaced.

2. Continue testing all field output wires in this

manner. 

AO309

ASSEMBLING

1. If the bearings need to be replaced, install the

bearings using a suitable press; then install the

bearing retainer using the existing screws. 

2. Using a press, install the rotor assembly into the

alternator housing.

3. Make sure the wave washer is properly posi-

tioned in the alternator housing outside the bear-

ing; then place the two alternator covers

together making sure the corresponding align-

ment marks on the two covers align. 

AO304

AO303A

4.  Secure the two covers using the two existing cap

screws and two existing nuts. Tighten securely. 

5.  Position the stator in the alternator housing; then

secure the stator to the housing using the exist-

ing screw. Secure the stator windings to the rec-

tifier assembly with the existing four cap

screws. Tighten securely. 

AO302

6. Install the voltage regulator and the brush

assembly using the existing screws. Tighten

securely.

 

 

 

 

 

 

 

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