Infiniti Q45. Manual - part 795

CHARGING SYSTEM

SC-25

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SC

Removal and Installation 

NKS0016W

REMOVAL 

1.

Remove battery. Refer to 

SC-8, "Removal and Installation"

 .

2.

Remove air intake duct. Refer to 

EM-17, "AIR CLEANER AND AIR DUCT"

 . 

3.

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

EM-14, "Removal and Installation"

 .

4.

Remove alternator mounting bolts.

5.

Remove power steering hose clamp mounting bolt.

6.

Remove alternator stay mounting bolts and alternator stay.

7.

Remove battery ground harness mounting bolt.

8.

Remove alternator bracket mounting bolts and alternator
bracket.

1.

Alternator ground harness

2.

“B” terminal nut

3.

“B” terminal harness

4.

Alternator nut

5.

Battery ground harness

6.

Alternator bracket

7.

Alternator

8.

Alternator mounting bolt

9.

Alternator stay

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

: Engine front

SKIB6549E

PKIA2210E

PKIA2211E

SC-26

CHARGING SYSTEM

9.

Disconnect alternator connector.

10. Remove B terminal nut.

11. Remove alternator ground harness mounting bolt.

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

slide power steering oil reservoir tank.

13. Remove alternator assembly upward.

ALTERNATOR PULLEY INSPECTION

Perform the following.

●

Make sure that alternator pulley dose not rattle.

●

Make sure that alternator pulley nut is tight.

INSTALLATION 

Installation is the reverse order of removal, note the following point.

●

Install alternator, and check tension of belt. Refer to 

EM-14, "Checking Drive Belts"

 .

CAUTION:

Be sure to tighten “B” terminal nut carefully.

PKIA2212E

PKIA1810E

Alternator pulley nut:

: 118 N·m (12.0 kg-m, 87 ft-lb)

CHARGING SYSTEM

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Disassembly and Assembly

NKS0016X

1.

Rear bearing

2.

Rotor

3.

Retainer

4.

Front bearing

5.

Front cover

6.

Pulley

7.

Pulley nut

8.

Stator

9.

IC voltage regulator assembly

10. Diode assembly

11. Rear cover

12. B terminal nut

SKIB0763E

SC-28

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

PFP:00030

Battery

NKS0016Y

Starter

NKS0016Z

Alternator

NKS00170

Type

80D23L

20 hour rate capacity

12 V - 62 AH

Cold cranking current (For reference value)

582 A

Type

M2T85171

MITSUBISHI make

Reduction gear type

System voltage

12 V

No-load

Terminal voltage

11 V

Current

Less than 145 A

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

A3TJ0591

MITSUBISHI make

Nominal rating

12 V - 150 A

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 35 A / 1,300 rpm

More than 105 A / 2,500 rpm
More than 136 A / 5,000 rpm

Regulated output voltage

14.1 - 14.7 V

Minimum length of brush

More than 5.00 mm (0.197 in)

Brush spring pressure

4.1 - 5.3 N (418 - 540 g, 14.8 - 19.1 oz)

Slip ring minimum outer diameter

More than 22.1 mm (0.870 in)

Rotor (Field coil) resistance

1.6 - 2.0 

Ω