1998 TOYOTA LAND CRUISER torque

I06743
AC1L9-05
I06744
- AIR CONDITIONINGFRONT A/C EVAPORATOR
AC-73
2798 Author
: Date
:
2004 LAND CRUISER (RM1071U)
FRONT A/C EVAPORATOR
ON-VEHICLE INSPECTION
1. INSPECT FOR LEAKAGE OF REFRIGERANT
(a) Remove the glove compartment door.
(b) Remove the lower No. 2 finish panel
(See page BO-84).
(c) Remove the No. 1 cooler cover.
(1) Disconnect the connector clamp.
(2) Remove the 8 screws and No. 1 cooler cover.
(d) Using a gas leak detector, check for leaks of refrigerant.
If there is a leakage of refrigerant, check the tightening torque
at the joints or check the evaporator.
(e) Install the No. 1 cooler cover.
2. INSPECT EXPANSION VALVE
(a) Check amount of gas during refrigeration cycle.
(b) Set on manifold gauge set.
(c) Operate A/C system at ºMAX. COOLº for approx. 5 min-
utes.
(d) Check expansion valve.
Check the low pressure reading drops to 0 kPa (0
kgf/cm
2, 0 psi).
If the low pressure reading is not as specified, replace the ex-
pansion valve with the tubes.

AC1K5-06
I15820
Instrument Panel
Cooling UnitLiquid Tube
Clamp Suction Tube

O-Ring
Antenna Relay
No. 2 Brace No. 1 BraceReinforcement

O-RingClamp
Grommet
Tube Expansion Valve
Cooler Case
Cooler Case Evaporator Evaporator
Temperature Sensor
No. 1 Cooler Case
O-Ring

O-Ring
N´m (kgf´cm, in.´lbf) : Specified Torque

Non reusable part
3.4 (35, 30)
- AIR CONDITIONINGFRONT COOLING UNIT
AC-23
2748 Author
: Date
:
2004 LAND CRUISER (RM1071U)
FRONT COOLING UNIT
COMPONENTS

AC1K7-06
I06697
I06698
I06699
AC-26
- AIR CONDITIONINGFRONT COOLING UNIT
2751 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DISASSEMBLY
1. REMOVE EVAPORATOR
(a) Disconnect the connector clamp.
(b) Remove the 8 screws and No. 1 cooler cover.
(c) Pull out the evaporator
HINT:
At the time of reassembly, if evaporator is replaced, add com-
pressor oil to the evaporator.
Add: 40 cc (1.4 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent
2. PULL OUT EVAPORATOR TEMPERATURE SENSOR
FROM EVAPORATOR
3. REMOVE EXPANSION VALVE
(a) Remove the grommet.
(b) Pry out the packing.
HINT:
At the time of reassembly, do not reuse the packing.
(c) Using a hexagon wrench (5.0 mm, 0.20 in.), remove the
2 bolts and separate the expansion valve, tube and evap-
orator.
Torque: 3.4 N´m (35 kgf´cm, 30 in.´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of reassembly, lubricate 4 new O-rings with com-
pressor oil and install them in the tube.
4. REMOVE DRAIN HOSE

AC1JE-04
I25169
AC-92
- AIR CONDITIONINGPRESSURE SWITCH
2817 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
HINT:
At the time of installation, evacuate air from refrigeration system
and charge system with refrigerant and inspect for leakage of
refrigerant.
Specified amount: 1,050 ± 50 g (37.03 ± 1.76 oz.)
2. REMOVE RADIATOR GRILL
3. REMOVE PRESSURE SWITCH FROM LIQUID TUBE
Disconnect the connector and remove the pressure switch.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
HINT:

Lock the switch mount on the tube with an open-end
wrench, be careful not to deform the tube, and remove the
switch.

At the time of installation, lubricate a new O-ring with
compressor oil and install the switch.

AC1KB-05
I25893
Roof Side Inner Upper Garnish Roof Headlining Rear Trim
No.1 Cooler Air Duct
Quarter Trim Panel RH
Rear Floor Mat Support Plate
O-Ring
Liquid Tube
Suction Tube Rear Door Scuff Plate
43 (430, 32)
10 (100, 7)
43 (430, 32)
N´m (kgf´cm, ft´lbf) : Specified torque

Non-reusable part
Rear Cooling Unit
43 (430, 32)
Adjusting
Anchor
43 (430, 32)
AC-30
- AIR CONDITIONINGREAR COOLING UNIT
2755 Author
: Date
:
2004 LAND CRUISER (RM1071U)
COMPONENTS

I07785
A/C AmplifierCooling Unit CaseBlower Motor
Blower Motor Case
Power Transistor
O-RingEvaporator
5.4 (55, 48 in.´lbf)
Thermistor
Expansion Valve
O-Ring

O-Ring
A/C Tube
14 (140, 10)
A/C Tube
Drain HoseCooling Unit Case x11
Cooling Unit Case
Grommet
N´m (kgf´cm, ft´lbf) : Specified torque

Non-reusable part
32 (330, 24)
x10 Wire Harness
x7
- AIR CONDITIONINGREAR COOLING UNIT
AC-31
2756 Author
: Date
:
2004 LAND CRUISER (RM1071U)

I06703
I06702
I06704
I06705
- AIR CONDITIONINGREAR COOLING UNIT
AC-35
2760 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(c) Pull out the thermistor from the evaporator.
(d) Remove the screw and the piping clamp.
(e) Loosen the 2 nuts and remove the tube and accessory.
Torque:
Liquid line: 14 N´m (140 kgf´cm, 10 ft´lbf)
Suction line: 32 N´m (330 kgf´cm, 24 ft´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of reassembly, lubricate 2 new O-rings with com-
pressor oil and install them in the tubes.
(f) Remove the evaporator.
HINT:
At the time of reassembly, if evaporator was replaced, add com-
pressor oil to the new evaporator.
Add 40 cc: (1.4 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent
6. REMOVE EXPANSION VALVE
Using a hexagon wrench (5.0 mm, 0.20 in.), remove the 2 bolts
and separate the expansion valve and evaporator.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
HINT:
At the time of reassembly, lubricate 4 new O-rings with com-
pressor oil and install them in the tubes.

AC1KA-04
I06684
43
W
I06685
1 2
I06686
- AIR CONDITIONINGREAR COOLING UNIT
AC-29
2754 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REAR COOLING UNIT
ON-VEHICLE INSPECTION
1. INSPECT EXPANSION VALVE
(a) Check amount of gas during refrigeration cycle.
(b) Set on manifold gauge set.
(c) Start the engine.
(d) Operate the A/C system.
(e) Inspect the expansion valve.
(1) Run the engine at 1,500 rpm for at least 5 minutes.
(2) Check the high pressure reading is 1.37 - 1.57 MPa
(14 - 16 kgf/cm
2, 199 - 288 psi).
(3) Check the low pressure reading.
If the low pressure reading is 0 kPa (0 kgf/cm
2, 0psi), replace
the expansion valve.
2. REMOVE REAR DOOR SCUFF PLATE RH
3. REMOVE REAR FLOOR MAT SUPPORT PLATE
4. REMOVE QUARTER TRIM PANEL RH
5. INSPECT THERMISTOR RESISTANCE
(a) Disconnect the connector.
(b) Measure resistance between terminal 3 and 4.
Standard resistance: Approx. 1.5 kW at 25 °C (77 °F)
If resistance is not as specified, proceed ºINSPECTIONº on
page AC-36.
6. INSPECT MAGNETIC VALVE CONTINUITY
(a) Disconnect the connector.
(b) Check the continuity exists between terminal 1 and 2.
If resistance is not as specified, proceed ºINSPECTIONº on
page AC-36.
7. CHECK FOR LEAKAGE OF REFRIGERANT
(a) Remove the power transistor.
(b) Using a gas leak detector, check for leaks of refrigerant.
If there is a leakage, check the evaporator or tightening torque
at the joints.