Toyota Tundra. Manual — part 2449

1. INSTALL MAGNET CLUTCH ASSEMBLY

a. Install the magnet clutch stator with the parts shown in the illustration matched.

Fig. 260: Identifying Magnet Clutch Stator
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using a snap ring expander, install a new snap ring with the chamfered side facing up.

Fig. 261: Installing Snap Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Connect the connector.

d. Using a snap ring expander, install the magnet clutch rotor and a new snap ring with the chamfered

side facing up.

NOTE:

Do not damage the seal cover of the bearing when installing the snap
ring.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

Fig. 262: Installing Snap Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e. Install the compressor washer(s) and magnet clutch hub.

f. Using SST, hold the magnet clutch hub and install the bolt.

SST 09985-00270

Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)

Fig. 263: Installing Magnet Clutch Hub Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. INSTALL COOLER BRACKET

a. Install the cooler bracket with the screw.

NOTE:

Do not change the combination of the compressor washer(s) used
before disassembly.

NOTE:

Make sure that there is no foreign matter or oil on the compressor
shaft, bolt, and clutch hub.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

Fig. 264: Identifying Cooler Bracket With Screw
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Attach the 2 clamps.

3. INSPECT MAGNET CLUTCH CLEARANCE

a. Clamp the cooler compressor in a vise.

b. Set the dial indicator to the magnet clutch hub.

c. Connect the battery positive lead to terminal 3 of the magnet clutch connector and the negative lead

to the ground wire. Turn the magnet clutch on and off and measure the clearance.

Standard clearance:

0.35 to 0.60 mm (0.014 to 0.024 in.)

If the measured value is not within the standard clearance, remove the magnet clutch hub and adjust
the clearance using compressor washers to obtain the standard clearance.

Compressor washer thickness:

0.1 mm (0.004 in.)

0.3 mm (0.012 in.)

0.5 mm (0.020 in.)

NOTE:

Adjustment should be performed with 3 or fewer magnet clutch
washers.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

Fig. 265: Checking Magnet Clutch Clearance
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Remove the cooler compressor from the vise.

INSTALLATION

1. ADJUST COMPRESSOR OIL

a. When replacing the compressor and magnetic clutch with a new one, gradually discharge the

refrigerant gas from the service valve, and drain the following amount of oil from the new
compressor and magnetic clutch before installation.

Standard:

(Oil capacity inside the new compressor and magnetic clutch: 120 +15 cc (4.1 + 0.51 fl.oz.)) -
(Remaining oil amount in the removed compressor and magnetic clutch) = (Oil amount to be
removed from the new compressor when replacing)

NOTE:



When checking the compressor oil level, follow the A/C
system's precautions.



If a new compressor and magnetic clutch is installed without
removing some oil remaining in the pipes of the vehicle, the oil
amount will be too large. This prevents heat exchange in the

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra