ISUZU TROOPER 1998 Service Manual Online

00 Ð 42 SERVICE INFORMATION
TRIPLE PRESSURE SWITCH (W/CONDENSER FAN)
43
12
1) Disconnect the connector and check for continuity
between pressure switch side connector terminal.
2) Reconnect the connector to activate the A/C switch,
and check to see if there is continuity between the
chassis side connectors and the fan operates.
[A/C OFF]
[A/C ON]
Terminal No. Control Continuity
1- 2Magnetic Clutch Continuity
3- 4Condenser Fan No Continuity
Terminal
Refrigerant Pressure Continuity Fan
No.
1079±98 kPa No
OFF
(11.0±1.0 kgácm
2/ 156±14 psi) Continuity
3- 4
1471±98 kPa
Continuity ON
(15.0±1.0 kgácm
2/ 213±14 psi)
BLOWER MOTOR
1
2
1) Disconnect the blower motor (B-5) connector from
the blower motor.
2) Connect the battery positive terminal to the No. 1
(NO.2; RHD) terminal of the blower motor and
negative to the No. 2 (NO. 1; RHD).
3) Be sure to check to see if the blower motor operates
correctly.
Terminal Normal
SW. No.12346Operating
position Resistance
2.4W
0.90W
0.28W
Ð 1
2
3
4
RESISTOR
14263
2
Motor3641
432
(SW.position) (Connector
terminal)
1
1) Disconnect resistor (I-41) connector.
2) Check for continuity and resistance between the
terminals of the resistor.

SERVICE INFORMATION 00 Ð 43
CONDENSER FAN
1 2
THERMO SWITCH (ENGINE)
1 2
1) Disconnect the condenser fan connector (C-75).
2) Connect the battery positive terminal to the No. 1
terminal and negative to No. 2.
3) Be sure to check to see if condenser fan operates
correctly.
With the environmental temperature of the switch set to
the following conditions, check to see if there is any
continuity between the switch side connector terminals.
Ambient Terminal
Continuity
Temperature No.
Above 77 Ð 83°C
1Ð 2No Continuity
(170.6Ð181.4°F)
CERAMIC HEATER
1
2
Ceramic heater
Disconnect the ceramic heater connector and check for
continuity between ceramic heater side connector
terminals.
Connector No. B-48
Terminal 1 2
Continuity

00 Ð 44 SERVICE INFORMATION
FULL HOT SWITCH
21
Temperature
control link
Full hot switch
1) With the temperature control knob set to the full hot
position, check to see visually if the temperature
control link of the heater unit operate correctly and if
the link contacts securely with the full hot switch.
2) Disconnect the full hot switch connector.
3) With the full hot switch contacted, check to see if
there is any continuity between the switch side
connector terminals.
B-49
Terminal
Full No. 1 2
hot switch
FREE
CONTACT

SERVICE INFORMATION 00 Ð 45
HEATER UNIT
Temperature control Reheat air mix system
Capacity (Kcal./hr.) 3,700
Air flow (m
3/hr.) 280
HEATER CORE
Type Fin & tube type
Element dimension mm (in.) 161 (6.3) ´163 (6.4) ´45 (1.8)
Radiating area m
2Approx. 2.1
EVAPORATOR ASSEMBLY
Capacity (Kcal./hr.) 4,200
Air flow (m
3/hr.) 470
EVAPORATOR CORE
Type Al-laminate louver fin type
Element dimension mm (in.) 235 (9.3) ´224 (8.8) ´74 (2.9)
EXPANSION VALVE
Type External pressure equalizer type
THERMOSTAT SWITCH
Type Electronic thermostat
°C (F) OFF: 3.5 ±0.5 (38.3 ±0.9)
ON: 5.0 ±0.5 (41.0 ±0.9)
CONDENSER
Type Parallel flow
Radiation performance (Kcal./hr.) 11,500
RECEIVER/DRIER
Type Assembly includes sight glass with dual (triple)
pressure switch
Internal volume cc (Imp. fl oz) 300 (8.5)
PRESSURE SWITCH
Type Dual pressure switch
kPa (kgácm
2/ PSI)·Low pressure control
ON: 205.9 ±30 (2.1 ±0.3 / 29.9 ±4)
(Except 6VD1 / 6VE1, LHD model)
186 ± 30 (1.9 ± 0.3 / 27 ± 4)
(only for 6VD1/ 6VE1, LHD model)
OFF: 176 ±20 (1.8 ±0.2 / 26 ±3)
·High pressure control
ON: 2354 ±196 (24.0 ±2.0 / 341 ±28)
OFF: 2942 ±196 (30.0 ±2.0 / 427 ±28)
Triple pressure switch (W/Condenser fan)
·Low pressure control
ON: 186 ±30 (1.9 ±0.3 / 27 ±4)
OFF: 176 ± 20 (1.8 ±0.2 / 26 ±3)
·Medium pressure control
ON: 1471 ±98 (15.0 ±1.0 / 213 ±14)
OFF: 1079 ±98 (11.0 ±1.0 / 156 ±14)
·High pressure control
ON: 2354 ±196 (24.0 ±2.0 / 341 ±28)
OFF: 2942 ±196 (30.0 ±2.0 / 427 ±28)
REFRIGERANT
Type/Specified amount g (lbs) HFC-134a / 750 (1.65)
MAIN DATA AND SPECIFICATIONS

00 Ð 46 SERVICE INFORMATION
COMPRESSOR
Model DKV-14D
Type Vane rotary (Invariable)
Number of vanes 5
Rotor diameter mm (in.) 64 (2.52)
Stroke mm (in.) 8.75 (0.34)
Displacement cc (Imp fl oz) 140 (3.9)
Maximum speed (rpm) 7,000 (up to 8,400)
Direction of rotation Clockwise (Front-side view)
Lubrication system Pressure differential type
Lubricant cc (Imp fl oz) ZXL-200PG, 150 (4.2)
ISUZU PART NO.
8-97101-336-0
Refrigerant g (lbs.) HFC-134a, 750 (1.65)
Shaft seal Lip type
Weight kg (lbs.) 3.6 (7.94)
MAGNETIC CLUTCH
Type Electromagnetic single-plate dry clutch
Rated voltage 12 Volts D.C.
Current consumption (A) 3.7
Starting torque Nám 39 (4.0 / 30)
(kgám / lbáft)
Direction of rotation Clockwise (Front-side view)
Weight kg (lbs.) 2.2 (4.9)
6VD1/6VE1 (RHD) & 6VD1 (LHD) (SAUDI/PHILIPPINE)
6VD1/6VE1 (LHD) Except SAUDI/PHILIPPINE
COMPRESSOR
Model HD6
Type Vane rotary (Invariable)
Number of vanes 6
Rotor diameter mm (in.) 64 (2.52)
Stroke mm (in.) 24 (0.94)
Displacement cc (Imp fl oz) 164 (4.59)
Maximum speed (rpm) 9,000
Direction of rotation Clockwise (Front-side view)
Lubrication system Pressure differential type
Lubricant cc (Imp fl oz) SD2-231, 150 (4.2)
Refrigerant g (lbs.) R-134a, 750 (1.65)
Shaft seal Lip type
Weight kg (lbs.) 6.8 (14.99)
MAGNETIC CLUTCH
Type Electromagnetic single-plate dry clutch
Rated voltage 12 Volts D.C.
Current consumption (A) 3.7
Starting torque Nám 39 (4.0 / 30)
(kgám / lbáft)
Direction of rotation Clockwise (Front-side view)
Weight kg (lbs.) 2.2 (4.9)

SERVICE INFORMATION 00 Ð 47
4JG2/4JX1
COMPRESSOR
Model DKS-15CH
Type Swash plate type
Number of cylinder 6
Bore mm (in.) 36 (1.4)
Stroke mm (in.) 24 (0.94)
Displacement cc (Imp fl oz) 147 (4.1)
Maximum speed (rpm) 7,000 (up to 8,400)
Direction of rotation Clockwise (Front-side view)
Lubrication system Pressure differential type
Lubricant cc (Imp fl oz) ZXL-100PG, 150 (4.2)
ISUZU PART NO.
8-97101-338-0
Refrigerant g (lbs.) HFC-134a, 750 (1.65)
Shaft seal Lip type
Weight kg (lbs.) 4.1 (9.0)
MAGNETIC CLUTCH
Type Electromagnetic single-plate dry clutch
Rated voltage 12 Volts D.C.
Current consumption (A) 3.7
Starting torque Nám 49 (5.0 / 36)
(kgám / lbáft)
Direction of rotation Clockwise (Front-side view)
Weight kg (lbs.) 2.3 (5.1)

00 Ð 48 SERVICE INFORMATION
FIXING TORQUE
Nám (kgám / lbáft)
"Ul
25(2.5/18)
15(1.5/11)
15(1.5/11)
13(1.3/113in)
6.0(0.6/52in)
6(0.6/52in)
38(3.9/28)
19(1.9/14)
19(1.9/14)
15(1.5/11)
25(2.5 / 18)
27(2.8 / 20)
40(4.1/30)
40(4.1/30)
20(2.0/14)15(1.5/11)
25(2.5/18)
27(2.8/20)
4JX1 4JG26VD1/6VE1, RHD19(1.9/14)
40(4.1/30)
19(1.9/14)
27(2.8/20)
6VD1/6VE1, LHD
19(1.9/14)
15(1.5/11)
E01RY00001

SERVICE INFORMATION 00 Ð 49
15(1.5/11)
5(0.5/43in)
14(1.4/122in)
22(2.2/16)
DKV-14D TYPENám (kgám / lbáin)
13(1.3/113)5(0.5/43)
DKS-15CH TYPENám (kgám / lbáft)
871RY00027
871RY00026

00 Ð 50 SERVICE INFORMATION
Legend
1. Clutch Driver
2. Rotor Bearing Retainer
3. Pulley Rotor and Bearing
Assembly
4. Clutch Coil Assembly
5. Connector
6. Shaft Seal Parts
7. Pump Assembly
8. High Pressure Relief Valve
9. Shipping Cap
10. Special 134a Suction Port
11. Special 134a Discharge Port
Caution
The operations described below are based
on bench overhaul with the compressor
removed from the vehicle, except as noted.
They have been prepared in order of
accessibility of the components. When a
compressor is removed from the vehicle for
servicing, the amount of PAG lubricant
remaining in the compressor should be
drained, measured and recorded. This PAG
lubricant should then be discarded and an
equal amount of new PAG lubricant added to
the compressor.
The service compressor is shipped without
PAG oil. When service procedures require,
use only Isuzu approved PAG oil.
HEATING, VENTILATION AND AIR CONDITIONING(HVAC)
1
2
3
4
5
68
97
10
11
871RW002

SERVICE INFORMATION 00 Ð 51
Metric Thread Size Information
Compressor to mounting bracket bolts(Front)
M10´1.5 Ð 6H
Compressor to mounting bracket bolts(Rear)
M8´1.25 Ð 6H
Suction-discharge port screw
M10´1.5 Ð 6H
Compressor shaft
M9´1.25 Ð 6H
Internal hub-clutch drive assembly
M22´1.5 Ð 6H