Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 398

7B-83 Air Conditioning System:

Compressor Assembly On-Vehicle Inspection

S6JB0A7206033

1) Install manifold gauge set (1) as shown in the figure.
2) Close Hi (4) and Lo (5) side valves.

3) Run engine at fast idle.
4) Check compressor for the following items.

If any of the checks indicated a defect, repair
compressor.
• High pressure gauge reading is not low and low

pressure gauge reading is not higher than normal.

• Metallic sound
• Leakage from compressor

Compressor Assembly and Compressor Bracket Components (F9Q Engine Model)

S6JB0A7206048

2. High pressure side (Delivery side hose)
3. Low pressure side (Suction side pipe)

1

5

3

4

2

I5JB0A720059-01

I5JB0B720017-05

1. Compressor assembly

8. Compressor bracket mount bolt

2. Compressor bracket

9. Idler bolt No.1

3. Idler pulley No.1

10. Idler bolt No.2

4. Idler pulley No.2

: 25 N

⋅m (2.5 kgf-m, 18.5 lb-ft)

5. Dust cover No.1

: 40 N

⋅m (4.0 kgf-m, 29.0 lb-ft)

6. Dust cover No.2

: 28 N

⋅m (2.8 kgf-m, 20.5 lb-ft)

7. Compressor mount bolt

: 50 N

⋅m (5.0 kgf-m, 36.5 lb-ft)

Air Conditioning System: 7B-84

Compressor Assembly Removal and
Installation for M16 Engine Model

S6JB0A7206034

Removal

1) Run engine at idle with A/C ON for 10 minutes.
2) Disconnect negative (–) cable at battery.
3) Recover refrigerant from the A/C system using

recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Charging A/
C with Refrigerant”.

NOTE
The amount of compressor at removed must
be measured and the same amount must be
poured when installing the compressor.

4) Disconnect thermal protector lead wire.
5) Disconnect suction and discharge hoses from

compressor.

NOTE
Cap open fitting immediately to keep
moisture out of system.

6) Remove compressor drive belt referring to “P/S

Pump and A/C Compressor (If Equipped) Drive Belt
Removal and Installation (M16A Engine Model) in
Section 6C”.

7) Remove compressor with clutch assembly from its

mount.

NOTE
If compressor assembly is replaced with one,
drain oil from compressor. Then, measure its
amount.

Installation
Reverse removal procedure noting the following
instructions.
• If compressor is replaced, pour new compressor oil

referring to “Precautions on Replenishing Compressor
Oil”.

• Evacuate and charge the A/C system referring to

“Evacuation” and “Charge” in “Operation Procedure
for Charging A/C with Refrigerant”.

• Adjust drive belt tension referring to “P/S Pump and A/

C Compressor (If Equipped) Drive Belt Inspection and
Adjustment (M16A Engine Model) in Section 6C”.

Tightening torque
Compressor mounting bolt for M16 engine
model: 25 N·m (2.5 kgf-m, 18.0 lb-ft)

Compressor Assembly Removal and
Installation for J20 Engine Model

S6JB0A7206035

Removal

1) Run engine at idle with A/C ON for 10 minutes.
2) Disconnect negative (–) cable at battery.
3) Recover refrigerant from the A/C system using

recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Charging A/
C with Refrigerant”.

NOTE
The amount of compressor oil at removed
must be measured and the same amount
must be poured when installing the
compressor.

4) Drain engine coolant.
5) Remove radiator inside hose and outside hose from

vehicle.

6) Disconnect magnet clutch connector.
7) Disconnect suction hose and discharge hose from

compressor.

NOTE
Cap open fitting immediately to keep
moisture out of system.

8) Remove compressor from its mount.

NOTE
If compressor assembly is replaced with one,
drain oil from compressor. Then, measure its
amount.

Installation

CAUTION

!

Be sure to use HFC-134a (R-134a)
compressor oil.

Reverse removal procedure noting the following
instructions.
• If compressor is replaced, pour new compressor oil

referring to “Precautions on Replenishing Compressor
Oil”.

• Fill engine coolant to radiator.
• Evacuate and charge system referring to “Evacuation”

and “Charge” in “Operation Procedure for Charging A/
C with Refrigerant”.

• Install drive belt referring to “Water Pump and

Generator Drive Belt Removal and Installation (For
J20 Engine): For Petrol Engine Model in Section 1J”.

Tightening torque
Compressor mounting bolt for J20 engine
model: 25 N·m (2.5 kgf-m, 18.0 lb-ft)

7B-85 Air Conditioning System:

Compressor Assembly Removal and
Installation (F9Q Engine Model)

S6JB0A7206049

Removal

1) Run engine at idle with A/C ON for 10 minutes.
2) Disconnect negative (–) cable at battery.
3) Recover refrigerant from the A/C system using

recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Charging A/
C with Refrigerant”.

NOTE
The amount of compressor oil at removed
must be measured and the same amount
must be poured when installing the
compressor.

4) Disconnect MAF sensor coupler, and then remove

air cleaner assembly.

5) Remove A/C compressor drive belt referring to

“Accessory Drive Belt and Idler Pulley Removal and
Installation: For Diesel Engine Model in Section 1J”.

6) Disconnect magnet clutch connector.
7) Disconnect suction hose and discharge hose from

compressor.

NOTE
Cap open fitting immediately to keep
moisture out of system.

8) Remove compressor from its mount.

Installation

CAUTION

!

Be sure to use HFC-134a (R-134a)
compressor oil.

Reverse removal procedure noting the following
instructions.
• If compressor is replaced, pour new compressor oil

referring to “Precautions on Replenishing Compressor
Oil”.

• Evacuate and charge system referring to “Evacuation”

and “Charge” in “Operation Procedure for Charging A/
C with Refrigerant”.

• Install drive belt referring to “Accessory Drive Belt and

Idler Pulley Removal and Installation: For Diesel
Engine Model in Section 1J”.

Tightening torque
Compressor mounting bolt: 25 N·m (2.5 kgf-m,
18.0 lb-ft)

Magnet Clutch Components for M16 Engine Model

S6JB0A7206036

6

9

7

4

5

2

1

8

(b)

3

(a)

I5JB0A720060-01

1. Armature plate bolt

5. Shim(s)

9. Thermal switch

2. Armature plate

6. Magnet clutch coil

: 15 N

⋅m (1.5 kgf-m, 11.0 lb-ft)

3. Circlip

7. Compressor body assembly

: 4.9 N

⋅m (0.49 kgf-m, 4.0 lb-ft)

4. Magnet clutch

8. Magnet clutch coil bolt

: Do not reuse.

Air Conditioning System: 7B-86

Magnet Clutch Components for J20 Engine Model

S6JB0A7206037

2

3

5

6

1

4

4

(a)

I5JB0A720061-01

1. Armature plate bolt

3. Shim(s)

5. Magnet clutch pulley

: 20 N

⋅m (2.0 kgf-m, 14.5 lb-ft)

2. Armature plate

4. Circlip

6. Magnet clutch coil

: Do not reuse.