Page 3785 of 4323
AC3HE±02
I21450
I21449
AC±50
± AIR CONDITIONINGBLOWER UNIT
3777 Author: Date:
2005 SEQUOIA (RM1146U)
DISASSEMBLY
1. REMOVE BLOWER MOTOR
Remove the 3 screws and blower motor.
2. REMOVE AIR INLET SERVOMOTOR
Remove the 3 screws and servomotor.
Page 3786 of 4323
AC1KW±04
± AIR CONDITIONINGBLOWER UNIT
AC±51
3778 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
INSPECT AIR INLET SERVOMOTOR OPERATION (See page DI±2358)
Page 3787 of 4323
AC1KX±01
AC±52
± AIR CONDITIONINGBLOWER UNIT
3779 Author: Date:
2005 SEQUOIA (RM1146U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See page AC±50).
Page 3788 of 4323
AC1KY±01
± AIR CONDITIONINGBLOWER UNIT
AC±53
3780 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page AC±49).
Page 3789 of 4323

AC1KZ±05
I21361
3
3
I21362
12
AC±54
± AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
3781 Author: Date:
2005 SEQUOIA (RM1146U)
COMPRESSOR AND MAGNETIC
CLUTCH
ON±VEHICLE INSPECTION
1. SET MANIFOLD GAUGE SET (See page AC±18)
2. START ENGINE
3. INSPECT COMPRESSOR FOR METALLIC SOUND
Check if a metallic sound can be heard from the compressor
when the A/C switch is on.
If a metallic sound cannot be heard, replace the compressor as-
sembly.
4. INSPECT REFRIGERANT PRESSURE
(See page AC±3)
5. STOP ENGINE
6. 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.
7. REMOVE MANIFOLD GAUGE SET
(See page AC±19)
8. CHECK FOR LEAKAGE OF GREASE FROM CLUTCH
BEARING
9. CHECK FOR SIGNS OF OIL ON PRESSURE PLATE
If necessary, repair or replace.
10. INSPECT MAGNETIC CLUTCH BEARING FOR NOISE
(a) Start the engine.
(b) Check if abnormal noise is heard from near the compres-
sor when the A/C switch is OFF.
If abnormal noise is being emitted, replace the magnetic clutch.
11. INSPECT MAGNETIC CLUTCH OPERATION
(a) Disconnect the connector.
(b) Connect the positive (+) lead from the battery to terminal
3 and the negative (±) lead to body ground.
(c) Check that the magnetic clutch is energized.
If operation is not as specified, replace the magnetic clutch.
12. INSPECT COMPRESSOR LOCK SENSOR RESIS-
TANCE
(a) Disconnect the connector.
(b) Measure the resistance between terminals 1 and 2.
Standard resistance:
165 to 205 W at 20°C (68°F)
If resistance is not as specified, replace the compressor.
Page 3790 of 4323
AC1L0±05
I21363
Compressor Stator
Snap RingRotor
Shim Pressure Plate
18 (184, 12.3)
10 (100, 7)
Drive BeltCompressor O±Ring
N´m (kgf´cm, ft´lbf) : Specified torque
Cooler Bracket47 (480, 35)
Non±reusable part
25 (255, 18)
± AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
AC±55
3782 Author: Date:
2005 SEQUOIA (RM1146U)
COMPONENTS
Page 3791 of 4323
AC1L1±05
I21454
I21453
AC±56
± AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
3783 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. RUN ENGINE AT IDLE SPEED WITH A/C ON FOR
APPROX. 10 MINUTES
2. STOP ENGINE
3. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
4. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
5. DISCONNECT DISCHARGE AND SUCTION HOSES
Remove the 2 nuts and disconnect both hoses.
NOTICE:
Cap the openings fitting immediately to keep moisture or
dirt out of the system.
6. REMOVE DRIVE BELT (See page AC±16)
7. REMOVE COMPRESSOR
(a) Disconnect the connector.
(b) Remove the 3 bolts and nut.
(c) Remove the cooler bracket.
(d) Remove the compressor.
Page 3792 of 4323
AC1L2±05
AC0943
SST
AC0944
SST
AC0945
SST
AC0946
Shim
Pressure
Plate
AC0947
SST
± AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
AC±57
3784 Author: Date:
2005 SEQUOIA (RM1146U)
DISASSEMBLY
1. REMOVE PRESSURE PLATE
(a) Using SST and a socket wrench, remove the shaft bolt.
SST 07112±76060
Torque: 18 N´m (184 kgf´cm, 12.3 ft´lbf)
(b) Install SST on the pressure plate.
SST 07112±66040
(c) Using SST and a socket wrench, remove the pressure
plate.
SST 07112±66040, 07112±76060,
(d) Remove the shims from the pressure plate.
2. REMOVE ROTOR
(a) Using SST, remove the snap ring.
SST 95994±10020