Lexus ES300 (1997 year). Manual — part 37

AC09X–02

–

AIR CONDITIONING

BLOWER UNIT

AC–31

1588

1997 LEXUS ES300 (RM511U)

REASSEMBLY

Reassembly is in the reverse order of disassembly (See page

AC–30

).

AC09Y–02

AC–32

–

AIR CONDITIONING

BLOWER UNIT

1589

1997 LEXUS ES300 (RM511U)

INSTALLATION

Installation is in the reverse order of removal (See page

AC–29

).

AC09Z–01

N01150

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

AC–33

1590

1997 LEXUS ES300 (RM511U)

COMPRESSOR AND MAGNETIC
CLUTCH

ON–VEHICLE INSPECTION

1.

INSPECT COMPRESSOR FOR METALLIC SOUND

(a)

Start the engine.

(b)

Check if there is metallic sound from the compressor
when the A/C switch is on.

If metallic sound is heard, replace the compressor assembly.
2.

INSPECT REFRIGERANT PRESSURE
(See page

AC–3

)

3.

INSPECT VISUALLY FOR LEAKAGE OF REFRIGER-
ANT FROM SAFETY SEAL

Using a gas leak detector, check for leakage of refrigerant.
If there is any leakage, replace the compressor assembly.
4.

INSPECT COMPRESSOR LOCK SENSOR
(See page

DI–552

)

5.

MAKE THESE VISUAL CHECKS:

(a)

Leakage of grease from the clutch bearing.

(b)

Signs of oil on the pressure plate or rotor.

If necessary, repair or replace.
6.

INSPECT MAGNETIC CLUTCH BEARING FOR NOISE

(a)

Start the engine.

(b)

Check for abnormal noise from near the compressor
when the A/C switch is OFF.

If abnormal noise is being emitted, replace the magnetic clutch.
7.

INSPECT MAGNETIC CLUTCH

(a)

Disconnect the connector from the magnetic clutch.

(b)

Connect the positive (+) lead from the battery to the termi-
nal 4 and the negative (–) lead to the body ground.

(c)

Check that the magnetic clutch is energized.

If operation is not as specified, replace the magnetic clutch.

AC0A0–01

I01448

Drive Belt

O–Ring

Suction Hose

Generator

Drive Belt Adjusting
Bar Bracket

Compressor Bracket

Compressor

Discharge Hose

Snap Ring

Stator

Compressor

Rotor

Pressure plate

Shim

N·m (kgf·cm, ft·lbf)

: Specified torque

Non–reusable part

O–Ring

O–Ring

10 (100, 7)

25 (250, 18)

25 (250,18)

25 (250,18)

10 (100, 7)

32 (330, 24)

56 (570, 41)

18 (185, 13)

25 (250,18)

Snap Ring

13.2 (135, 9)

AC–34

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

1591

1997 LEXUS ES300 (RM511U)

COMPONENTS