Lexus SC300 / Lexus SC400. Service manual — part 696

6.

INSTALL IC REGULATOR AND BRUSH HOLDER
(a) Place the IC regulator together and brush holder on the

rectifier end frame.

NOTICE: Be careful of the holder installation direction.
(b) Install

the

five

mounting screws until there is a clearance

of approx. 1 mm (0.04 in.) between the brush holder and
connector.

(c) Place the brush holder cover on the brush holder.

7.

INSTALL REAR END COVER
(a) Install the end cover with the three nuts.

(b) Install the terminal insulator with the nut.

8. CHECK

THAT

ROTOR

ROTATES

SMOOTHLY

–

CHARGING SYSTEM

Alternator

CH–19

INSTALLATION OF ALTERNATOR

(See Components on page

CH–9

)

1. INSTALL

ALTERNATOR

(a) Install the alternator and A/T oil cooler bracket with the

bolt and nut.

Torque: 37 N

⋅

m (380 kgf

⋅

cm, 27 ft

⋅

lbf)

(b) Connect the alternator connector.
(c) Connect the alternator wire with the nut and cap.

2.

INSTALL DRIVE BELT
Install the drive belt by turning the drive belt tensioner coun-
terclockwise.
HINT: The pulley bolt for the belt tensioner has a left–hand
thread.

3. CONNECT CABLE TO NEGATIVE TERMINAL OF

BATTERY

4.

PERFORM ON–VEHICLE INSPECTION
(See steps 6 to 8 on pages

CH–6

to 8)

5.

INSTALL ENGINE UNDER COVER

CH–20

–

CHARGING SYSTEM

Alternator

SERVICE SPECIFICATIONS

SERVICE DATA

Battery

Specific gravity

1.27–1.29

(when fully charged at 20

°

C (68

°

F))

Alternator

Rated output

12 V–100 A

Rotor coil resistance

2.8–3.0

Slip ring diameter

STD

14.2–14.4 mm

0.559–0567 in.

Limit

12.8 mm

0.504 in.

Brush exposed length

STD

10.5 mm

0.413 in.

Limit

1.5 mm

0.059 in.

Alternator

Regulating voltage

at 25

°

C (77

°

F)

13.9–15.1 V

regulator

at 115

°

C (239

°

F)

13.5–14.3 V

TORQUE SPECIFICATIONS

Part tightened

N

⋅

m

kgf

⋅

cm

ft

⋅

lbf

Alternator pulley X Rotor

110

1,125

81

Alternator X Alternator bracket

37

380

27

Alternator X Cylinder block

37

380

27

–

CHARGING SYSTEM

Service Specifications

CH–21

COOLING SYSTEM

CO–1

–

COOLIING SYSTEM

Description