SUZUKI GRAND VITARA 1999 2.G Service Workshop Manual

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GRAND
VITARA
1. Suction hose
2. Discharge hose
3. Liquid pipe
4. Condenser outlet pipe
5. Expansion valve
6. Dual pressure switch
7. Suction pipe
: Apply compressor oil
(refrigerant oil) to O-ring.
1B-30 AIR CONDITIONING (OPTIONAL)
ON-VEHICLE SERVICE
WARNING:
Should refrigerant HFC-134a (R-134a) strike your eye(s), consult a doctor immediately.

DO NOT USE YOUR HAND TO RUB AFFECTED EYE(S).
Instead, use quantities of fresh cold water to splash it over affected area to thus gradually raise its
temperature above the freezing point.

Obtain proper treatment as soon as possible from a doctor or eye specialist.
Should liquid refrigerant HFC-134a (R-134a) get on your skin, such affected part should be treated
in the same manner as when skin is frostbitten or frozen.
CAUTION:
None of refrigerant, compressor oil and component parts is interchangeable between two types of A / C:
one using CFC-12 (R-12) and the other using HFC-134a (R-134a).
(For identification between these two types, refer to page 1B-2).
When replenishing or changing refrigerant and compressor oil and when replacing parts, make sure
that the material or the part to be used is appropriate to the A / C installed in the vehicle being serviced.
Use of incorrect one will result in leakage of refrigerant, damage in parts or other faulty condition.
PRECAUTION
When servicing air conditioning system, the following rules must be observed.
PIPING

When connecting hoses and pipes, apply a few drops of compressor oil (refrigerant oil) to seats of coupling nuts
and O-ring.

Never use heat for bending pipes. When bending a pipe, try to make its bending radius as slight as possible.

Keep internal parts of air conditioning free from moisture and dirt. When disconnecting any line from system,
install a blind plug or cap to the fitting immediately.

When tightening or loosening a fitting, use two wrenches, one for turning and the other for support.

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AIR CONDITIONING (OPTIONAL) 1B-31

Tighten flared nuts to specified torque.
Tightening Torque (Flared Nut Used for)
8 mm pipe: 13 N
.m (1.3 kg-m, 9.5 lb-ft)
14.5 mm pipe: 23 N
.m (2.3 kg-m, 16.6 lb-ft)
16 mm pipe: 33 N
.m (3.3 kg-m, 23.8 lb-ft)

Route drain hose so that drained water does not make any contact to vehicle components.
HANDLING REFRIGERANT HFC-134a (R-134a)

When handling refrigerant, always wear goggles to protect your eyes.

Avoid you direct contact to liquid refrigerant.

Do not heat refrigerant container higher than 40C (104F).

Do not discharge refrigerant into atmosphere.

Do not allow liquid refrigerant to touch bright metals. Refrigerant combined with moisture is corrosive and will
tarnish surfaces of bright metals including chrome.

After recovering refrigerant from system, the amount of compressor oil removed must be measured and the same
amount added to the system.
REFRIGERANT RECOVERY
When discharging refrigerant out of A / C system, always recover it by using refrigerant recovery and recycling
equipment. Discharging refrigerant HFC-134a (R-134a) into atmosphere would cause adverse effect to environ-
ments.
NOTE:
When handling recovery and recycling equipment, be sure to follow the instruction manual for the equip-
ment.
REFRIGERANT CHARGE
Charge a proper amount of refrigerant to A / C system according to charging procedure described in recovery, evac-
uation and charging.
CAUTION:
Do not perform an additional refrigerant charging to A / C system. This cause it to overcharge.

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VITARA
1. New compressor
2. Removed compressor
3. Excess oil (A ± B)
1B-32 AIR CONDITIONING (OPTIONAL)
REPLENISHING COMPRESSOR OIL
When replacing air conditioning parts with new ones, it is necessary
to replenish oil by the amount supposedly remaining in each part.
When changing gas only
When it is unavoidable to change gas without replacing any compo-
nent part for engine removal and installation or for some other rea-
son, replenish 20 cc oil. When replenishing gas only, oil replenish-
ment it not necessary.
When replacing compressor
Compressor oil is sealed in each new compressor by the amount
required for air conditioner cycle. Therefore, when using a new
compressor for replacement, drain oil from it by the amount calcu-
lated as follows.
ªCº = ªAº ± ªBº
ªCº: Amount of oil to be drained
ªAº: Amount of oil sealed in a new compressor
ªBº: Amount of oil remaining in removed compressor
When replacing other part
Replaced partAmount of compressor oil
to be replenished
Evaporator25 cc
Condenser15 cc
Receiver / dryer20 cc
Hoses10 cc each
Pipes10 cc each

YH4
GRAND
VITARA
2. Bolt
For CAMI production vehicle
For IWATA production vehicle
AIR CONDITIONING (OPTIONAL) 1B-33
A / C CONDENSER ASSEMBLY
INSPECTION
Check
a) condenser fins for blockage
b) condenser fittings for leakage
c) condenser fins for damage
Clogged condenser fins should be washed with water, and should
be dried with compressed air.
CAUTION:
Be careful not to damage condenser fins. If condenser fin is
bent, straighten it by using a screwdriver or pair of pliers. If
any leakage is found from fitting or tube, repair or replace
condenser.
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount added to the system.
3) Remove front bumper assembly and remove lower stay (1) if
equipped (Refer to Section 9 ªBODY SERVICEº).
4) Disconnect compressor discharge hose (1) from condenser in-
let fittings.
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust do not enter
condenser.

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1B-34 AIR CONDITIONING (OPTIONAL)
5) Disconnect coupler from dual pressure switch (1).
6) Disconnect condenser outlet pipe (3).
7) Disconnect condenser cooling fan motor coupler (2).
8) Remove condenser with fan.
NOTE:
Be careful not to damage fins of condenser and radiator.
9) Remove A / C condenser cooling fan assembly from condenser.
INSTALLATION
Reverse removal sequence to install condenser, noting following
point.
1) When replacing condenser, add 20 to 30 cc of refrigerating oil
from compressor suction-side.
2) Evacuate and charge system according to previously-described
procedure.

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1. Air flow
AIR CONDITIONING (OPTIONAL) 1B-35
CONDENSER COOLING FAN ASSEMBLY
INSPECTION

Remove condenser assembly (Refer to ªA / C CONDENSER AS-
SEMBLY REMOVALº in this section).

Check continuity between terminal to terminal as shown.
If check results are continuity, proceed to next operation check.
If not, replace.

Connect battery to condenser fan motor as shown, then check
that the condenser fan motor operates smoothly and specified
current.
Specified current: Maximum 12 A at 12 V

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VITARA
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2. Condenser dryer section
1B-36 AIR CONDITIONING (OPTIONAL)
CONDENSER DRYER (RECEIVER / DRYER)
REMOVAL
1) Remove A / C condenser assembly (1) from vehicle (Refer to
ªA / C CONDENSER ASSEMBLY REMOVALº in this section.).
2) Remove the condenser dryer cap from condenser.
3) Remove the filter (1) from the condenser (2).
4) Remove the dryer (1) using a plier (2).
INSTALLATION
Reverse removal sequence to install condenser dryer, according to
instruction manual with supply parts.
NOTE:

When replacing condenser dryer, add 40 cc of refrigerating
oil the same as compressor oil.

Do not remove the dryer from the plastic bag until just before
inserting it into the receiver.

Install the condenser dryer (1) with its double-layer portion
facing the bottom of the receiver.

If condenser dryer cap installing is bolt type, tighten speci-
fied torque for its bolt.
Tightening Torque:
Cap: 12.5 N
.m (1.25 kg-m, 9 lb-ft)

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1
For CAMI production vehicle
For IWATA production vehicle
1
AIR CONDITIONING (OPTIONAL) 1B-37
AIR FILTER ELEMENT
REMOVAL
1) Disconnect negative (±) cable at battery.
2) For vehicle with air bag system, disable air bag system. Refer
to ªDISABLING AIR BAG SYSTEMº in Section 10B.
3) Pull down glove box (1) by pushing the shown part (a).
4) Remove filter cover (1).
5) Pull out filter element (1). Pull out upper filter first then the lower
one.

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1
1. Ears1. Air flow
1B-38 AIR CONDITIONING (OPTIONAL)
CLEAN
Blow off dust by compressed air from air outlet side of the filter ele-
ment.
INSTALLATION
Reverse removal procedure for installation noting the followings:

Install filter into cooling unit directing arrow mark on its end face
to heater unit.

Enable air bag system after installation. Refer to ªENABLING AIR
BAG SYSTEMº in Section 10B.

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AIR CONDITIONING (OPTIONAL) 1B-39
COOLING UNIT (EVAPORATOR)
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system. Refer to ªDisabling Air Bag Systemº in
Section 10B.
3) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount added to the system.
4) For G16 and J20 engine
Disconnect suction pipe (1), and liquid pipe (2) from evaporator
(cooling unit).
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust may not enter
cooling unit.
5) Remove blower motor unit. Refer to Section 1A ªHEATER AND
VENTILATIONº.
6) Disconnect thermistor wire coupler.
7) Remove cooling unit (evaporator).
DISASSEMBLY (FOR CAMI PRODUCTION VEHICLE)
1) Remove filter (2) from cooling unit (3) assembly by removing fil-
ter cover (1).
2) Remove screws (1) to separate evaporator upper and lower
cases from each other.