SUZUKI GRAND VITARA 2002 2.G Service Workshop Manual

YH4
GRAND
VITARA
1B-50 AIR CONDITIONING (OPTIONAL)
REMOVAL
1) Run engine at idle with A / C ON for 10 minutes.
2) Disconnect negative (±) cable at battery.
3) Recover refrigerant from refrigeration system using recovery
and recycling equipment.
NOTE:
The amount of compressor oil at removed must be mea-
sured 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 as-
sembly.
NOTE:
Cap open fitting immediately to keep moisture out of sys-
tem.
6)For G16 engine:
Remove compressor drive belt by loosening compressor as-
sembly mounting bolts.
For J20 engine:
Remove generator belt. Refer to Section 6H.
For H25 engine:
Remove compressor drive belt by loosening tension pulley bolt.
7) Remove compressor with magnet clutch assembly from its
mount.
8) If compressor assembly is replaced. Drain oil from compressor
assembly, and measure its amount.

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-51
G16 engine
J20 engine
H25 engine
3. Compressor pulley
4. Crankshaft pulley
INSTALLATION
FOR IWATA PRODUCTION VEHICLE
1) Pour new compressor oil. The amount must be the same with
the amount measured in REMOVAL.
NOTE:
Compressor assembly supplied from factory is filled up
with following amount of oil.
Amount of oil in compressor: 120 cm
3 (120 cc, 7.5 in3)
2)For G16 engine:
Install compressor assembly temporarily to bracket, then install
compressor drive belt (2).
For J20 and H25 engines:
Install compressor assembly to its bracket.
Tighten bolts (a) first, then (b).
Tightening Torque
(a), (b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
3) Connect suction and discharge hoses to compressor assembly.
4)For G16 engine:
Tension compressor drive belt (2) by tightening compressor as-
sembly mounting bolts. Refer to Section 3B1 for drive belt ten-
sion.
Tighten bolt (a) first, then (b).
Tightening Torque
(a), (b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
For J20 engine:
Install generator belt (1). Refer to Section 6H for details.
For H25 engine:
Install compressor drive belt (2). Refer to Section 3B1 for instal-
lation and belt tension.
5) Connect thermal protector lead wire.
6) Evacuate and charge system according to previously described
procedure.
CAUTION:
Be sure to use HFC-134a (R-134a) compressor oil.

YH4
GRAND
VITARA
1B-52 AIR CONDITIONING (OPTIONAL)
G16 engine
J20 engine
3. Compressor pulley
4. Crankshaft pulley
FOR CAMI PRODUCTION VEHICLE
1) Pour new compressor oil. The amount must be the same with
the amount measured in REMOVAL.
NOTE:
Compressor assembly supplied from factory is filled up
with the following amount of oil.
Amount of oil in compressor: 120 cm
3 (120 cc, 7.5 in3)
2)For G16 engine:
Install compressor assembly temporarily to bracket, then install
compressor drive belt (2).
For J20 engine:
Install compressor assembly to its bracket.
Tighten bolts (a).
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
3) Connect suction and discharge hoses to compressor assembly.
4)For G16 engine:
Tension compressor drive belt (2) by tightening compressor as-
sembly mounting bolts. Refer to Section 3B1 for drive belt ten-
sion.
Tighten bolt (a) first, then (b).
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
For J20 engine:
Install generator belt (1). Refer to Section 6H for details.
5) Connect thermal protector lead wire.
6) Evacuate and charge system according to previously described
procedure.
CAUTION:
Be sure to use HFC-134a (R-134a) compressor oil.

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-53
1. Clutch plate bolt
2. Clutch plate
3. Circlip
4. Clutch pulley
5. Shim
6. Clutch coil
7. Compressor 567
MAGNET CLUTCH ASSEMBLY (FOR DENSO)
INSPECTION

Inspect clutch plate and clutch pulley for signs of oil.

Check clutch pulley for noise and grease leakage.

Using an ohmmeter, measure resistance of clutch coil between
clutch lead wire (1) and compressor body (2).
If measured resistance is not within tolerance, replace magnet
clutch assembly.
Standard resistance: 3.5 ± 5.0
at 20C, 68F
REMOVAL
1) Remove compressor assembly from vehicle. Refer to ªCOM-
PRESSOR ASSEMBLYº in this section.
2) Fix clutch plate (1) with special tool (A) and remove clutch plate
bolt.
Special Tool
(A): 09991-06020
NOTE:
Do not reuse clutch plate bolt.
3) Using special tool (B), remove clutch plate (1).
Special Tool
(B): 09991-06030

YH4
GRAND
VITARA
1B-54 AIR CONDITIONING (OPTIONAL)
2
4) Remove shims from shaft.
5) Using special tool (C), remove circlip.
Special Tool
(C): 09900-06107
6) Remove clutch coil lead wire clamp screw, and remove clutch
coil read wire ground terminal.
7) Remove clutch pulley with puller (1) from compressor (2).
NOTE:
Be careful not to damage pulley when tapping magnet
clutch assembly.
8) Remove clutch coil.
Special tool
(C): 09900-06107
INSTALLATION
1) Install clutch coil (2).
Protrusion on under side of coil ring must match hole in com-
pressor (3) to prevent movement ant correctly locate lead wire.
2) Using special tool (C), install snap ring (1) as shown.
Special Tool
(C): 09990-06107
3) Install clamp portion and ground terminal of lead wire.

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-55
1. Armature plate
4) Clutch pulley (1).
(1) Set clutch pulley squarely over clutch pulley installation boss.
(2) Place special tool (D) onto clutch pulley bearing.
Ensure that edge rests only on inner race of bearing.
(3) Install snap ring.
Special Tool
(D): 09991-06010
CAUTION:
Be careful not to scratch bearing seal.
5) Adjust clearance, between clutch plate (1) and clutch pulley by
putting shim on compressor shaft.
Standard clearance ªaº: 0.3 ± 0.5 mm (0.012 ± 0.02 in.)
6) Tighten new clutch plate bolt as specified below.
Tightening Torque
(a): 14 N
.m (1.4 kg-m, 10.5 lb-ft)
Special Tool
(A): 09991-06020

YH4
GRAND
VITARA
1B-56 AIR CONDITIONING (OPTIONAL)
1. Clutch plate bolt
2. Clutch plate
3. Circlip
4. Clutch pulley
5. Washer
6. Shim
7. Oil felt ring
8. Clutch coil
9. Lip type seal
10. Compressor front head
11. Compressor body component
12. O-ring
13. Compressor thermal switch
3. Washer
(if equipped)1. Thermal switch
2. Ohmmeter
MAGNET CLUTCH ASSEMBLY (FOR SEIKO SEIKI)
INSPECTION
MAGNET CLUTCH

Inspect clutch plate and clutch pulley for signs of oil.

Check clutch pulley bearings for noise and grease leakage.

Using and ohmmeter, measure resistance of clutch coil between
clutch coil lead wire (1) and compressor body.
If measured resistance is not within tolerance, replace coil.
Standard resistance: 2.5 ± 4.5
at 20C, 68F
COMPRESSOR THERMAL SWITCH
Use an ohmmeter to check thermal switch for continuity. If there is
no continuity, replace it.
REMOVAL
1) Remove compressor assembly from vehicle. Refer to COM-
PRESSOR ASSEMBLY in this section.
2) Fix clutch plate (1) with special tool (A) and remove clutch plate
bolt (2).
Special Tool
(A): 09991-06020
NOTE:
Do not reuse armature plate nut.

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-57
3) Using special tool (B), remove clutch plate (1).
Special Tool
(B): 09991-06030
4) Disconnect clutch coil lead wire from compressor thermal switch
led wire.
5) Remove felt ring (if equipped) and shims from shaft.
6) Using special tool (C), remove circlip.
Special Tool
(C): 09900-06107
7) Remove clutch coil lead wire clamp screw.
8) Remove clutch pulley with puller (1) from compressor (2).
NOTE:
Be careful not to damage pulley when tapping magnet
clutch.
9) Remove clutch coil.
INSTALLATION
1) Install clutch coil (2).
Protrusion on under side of clutch coil must match hole in com-
pressor (3) to prevent movement ant correctly locate lead wire.
2) Using special tool (C), install snap ring (1) as shown.
Special Tool
(C): 09990-06107
3) Clamp covering portion of lead wire.

YH4
GRAND
VITARA
3. Washer
(if equipped)
1B-58 AIR CONDITIONING (OPTIONAL)
4) Install clutch pulley (1).
(1) Set clutch pulley squarely over clutch pulley installation boss.
(2) Place special tool (D) onto clutch pulley bearing.
Ensure that edge rests only on inner race of bearing.
(3) Install snap ring.
Special Tool
(D): 09991-06010
CAUTION:
Be careful not to scratch bearing seal.
5) Adjust clearance, between clutch plate and clutch pulley (2) by
putting shim on compressor shaft.
Standard clearance ªaº: 0.3 ± 0.6 mm (0.012 ± 0.024 in.)
6) Tighten new clutch plate (1) bolt (2) as specified below.
Tightening Torque
(a): 14 N
.m (1.4 kg-m, 10.5 lb-ft)
Special Tool
(A): 09991-06020

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-59
PUSH
3. Cylinder
4. Case
5. O-ring
2. Bearing puller
LIP TYPE SEAL (FOR SEIKO SEIKI)
REMOVAL
1) Remove magnet clutch assembly, referring to ªMAGNET
CLUTCH ASSEMBLYº in this section.
2) Remove compressor front head (1) mounting bolt (10 pcs.).
3) Remove compressor front head (1) by pushing cylinder shaft
(2).
NOTE:
Be careful not to remove cylinder from case.
4) Remove O-ring.
5) Remove lip seal from compressor front head (1).
INSTALLATION
1) Press-fit lip seal (1) into compressor front head (2) using special
tool (E).
Special Tool
(E): 09991-06050
CAUTION:
Do not reuse mechanical seal once removed from com-
pressor.