Mazda CX-9 Grand Touring. Manual — part 426

Fig. 35: Inspecting Rear Power Metal Oxide Semiconductor Field Effect Transistor (Power Mos
Fet)
Courtesy of MAZDA MOTORS CORP.

MAGNETIC CLUTCH DISASSEMBLY/ASSEMBLY

1. Install the SST (49 L061 001) or a commercially available filter wrench as shown in the figure and

remove the bolt.

When Using SST

Fig. 36: Removing Pressure Plate Bolt
Courtesy of MAZDA MOTORS CORP.

When Using Filter Wrench

2. Insert an appropriate bolt into the pressure plate thread hole and tighten it until the pressure plate is

removed.

2008 Mazda CX-9 Grand Touring

2008 HVAC Control System (HVAC) - Mazda CX-9

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Fig. 37: Removing Pressure Plate
Courtesy of MAZDA MOTORS CORP.

3. Disassemble in the order indicated in the table.

Fig. 38: Identifying Pressure Plate Disassembly Order & Torque Specifications
Courtesy of MAZDA MOTORS CORP.

4. Assemble in the reverse order of disassembly.

5. Adjust the magnetic clutch clearance. (See MAGNETIC CLUTCH ADJUSTMENT.)

SNAP RING INSTALLATION NOTE

1. Install the snap ring so that the tapered area is on the pressure plate side.

2008 Mazda CX-9 Grand Touring

2008 HVAC Control System (HVAC) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:12:35 AM

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 39: Identifying Snap Ring & Tapered Area
Courtesy of MAZDA MOTORS CORP.

MAGNETIC CLUTCH ADJUSTMENT

1. Secure the A/C compressor to the vise.

2. Secure the magnet base to the vise and install the dial gauge to the position shown in the figure.

3. Set the dial gauge to 0.

4. Connect battery voltage to stator terminal A and the A/C compressor body to ground to operate the

magnet clutch.

5. Verify that the dial gauge graduation is within the standard.



If the clearance is not within the specification, adjust the clearance by changing the type or number
of shims.

Fig. 40: Adjusting Magnetic Clutch
Courtesy of MAZDA MOTORS CORP.

Magnetic clutch clearance

0.35-0.65 mm {0.014-0.025 in}

MAGNETIC CLUTCH INSPECTION

1. Connect battery positive voltage to magnetic clutch terminal A, connect terminal B to ground.

2008 Mazda CX-9 Grand Touring

2008 HVAC Control System (HVAC) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:12:35 AM

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 41: View Of Battery Positive Voltage To Magnetic Clutch Terminal A & Terminal B
Courtesy of MAZDA MOTORS CORP.

2. Verify that the magnetic clutch operates.



If there is any malfunction, replace the magnetic clutch.

Fig. 42: Inspecting Magnetic Clutch Operation
Courtesy of MAZDA MOTORS CORP.

SOLAR RADIATION SENSOR REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the cover from the dashboard using a fiathead screwdriver wrapped with protective tape.

3. Detach the solar radiation sensor connector tab in the position shown in the figure and disconnect the

solar radiation sensor connector.

4. Press the solar radiation sensor tab and remove the solar radiation sensor from the cover.

5. Install in the reverse order of removal.

2008 Mazda CX-9 Grand Touring

2008 HVAC Control System (HVAC) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:12:36 AM

Page 25

© 2005 Mitchell Repair Information Company, LLC.