Infiniti M45 (Y34). Manual — part 744

CHARGING SYSTEM

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Removal and Installation

AKS002EI

REMOVAL

1.

Remove battery. Refer to

SC-8, "Removal and Installation"

.

2.

Remove air intake duct. Refer to

EM-16, "AIR CLEANER AND AIR DUCT"

in “ENGINE MECHANICAL

(EM)” section.

3.

Remove alternator, water pump and A/C compressor belt. Refer to

EM-13, "Removal and Installation"

“ENGINE MECHANICAL (EM)” section.

4.

Remove power steering hose clamp mounting bolt.

5.

Remove alternator stay mounting bolts and alternator stay.

6.

Remove radiator reservoir tank and radiator reservoir tank
bracket. Refer to

CO-12, "RADIATOR"

in “ENGINE COOLING

SYSTEM (CO)” section.

7.

Remove battery ground harness mounting bolt.

8.

Remove engine room harness clip.

1.

Alternator stay

2.

Alternator

3.

Alternator ground harness

4.

Alternator B terminal

5.

Battery ground harness

6.

Alternator bracket

PKIA1806E

PKIA1807E

PKIA1808E

SC-28

CHARGING SYSTEM

9.

Remove alternator mounting bolt.

10. Remove alternator bracket mounting bolts and alternator

bracket.

11. Remove B terminal nut.
12. Disconnect alternator connector.

13. Remove alternator ground harness mounting bolt.

14. Remove power steering oil reservoir tank mounting bolts, then

slide power steering oil reservoir tank.

15. Remove alternator assembly from vehicle upper side.

INSTALLATION

Install in the reverse order of removal, taking care of the following point.

●

Install alternator, and check tension of belt. Refer to

MA-12, "Checking Drive Belts"

in “ENGINE

MECHANICAL (EM)” section.

CAUTION:

Be sure to tighten B terminal mounting nut carefully.

PKIA1809E

PKIA1810E

CHARGING SYSTEM

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Disassembly and Assembly

AKS002EJ

1.

Pulley

2.

Front cover

3.

Front bearing

4.

Retainer

5.

Rotor

6.

Rear bearing

7.

Stator

8.

IC voltage regulator assembly

9.

Diode assembly

10. Rear cover

Through bolt:

: 3.5 - 5.3 N·m (0.36 - 0.54 kg-m, 31 - 47 in-lb)

Pulley nut:

: 99 - 137 N·m (10.1 - 14.0 kg-m, 73 - 101 ft-lb)

PKIA1824E

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

PFP:00030

Battery

AKS002EQ

Starter

AKS002ER

Alternator

AKS002ES

Type

80D23R

Capacity

12V - 52AH

Cold cranking current (For reference value)

582A

Type

M2T85171

MITSUBISHI make

Reduction gear type

System voltage

12V

No-load

Terminal voltage

11V

Current

Less than 145A

Revolution

More than 3,300 rpm

Minimum diameter of commutator

31.4 mm (1.236 in)

Minimum length of brush

11.0 mm (0.433 in)

Brush spring tension

30.9 - 37.7 N (3.15 - 3.85 kg, 6.95 - 8.47 lb)

Clearance between bearing metal and armature shaft

Less than 0.2 mm (0.008 in)

Clearance between pinion front edge and pinion stopper

0.5 - 2.0 mm (0.020 - 0.079 in)

Type

A3TG0391

MITSUBISHI make

Nominal rating

12V - 110A

Ground polarity

Negative

Minimum revolution under no-load (When 13.5 V is applied)

Less than 1,000 rpm

Hot output current (When 13.5 V is applied)

More than 31A / 1,300 rpm
More than 90A / 2,500 rpm

More than 102A / 5,000 rpm

Regulated output voltage

14.1 - 14.7V

Minimum length of brush

More than 5.00 mm (0.197 in)

Brush spring pressure

4.8 - 6.1 N (490 - 610 g, 17.28 - 21.51 oz)

Slip ring minimum outer diameter

More than 22.1 mm (0.870 in)

Rotor (Field coil) resistance

1.7 - 2.1

Ω