Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1670
1-66 HEATING AIR CONDITIONING
2-B
REFRIGERATION SYSTEM DEFECTIVE
Checkpoint
Trouble Cause
Countermeasure
Clean or replace the
expansion valve
Clean or replace the pipe line
Purge air from the
refrigeration system
Adjust the refrigerant gas
quantity
Expansion valve is clogged
Pipe line is clogged
Air exists in the system
The system is over-charged
Clean or replace the
condenser
Charge the system with
refrigerant gas
Condenser is fouled or
clogged
The system is charged
unsufficiently
(Turn the A/C switch on again)
Check to see if the pressure
of high pressure side is 16
kg/cm
2
(228 psi/ 15.7
×
10
2
kPa)
or lower.
Check to see if bubbles come
out within 5 seconds after
turning the A/C switch off from
5 minutes running
Continued on the next page
NG
NG
NG
NG
NG
NG
OK
OK
Sight glass for being clear or
not
First, turn engine (with engine
speed of about 1000 rpm) and
A/C switch on, and set fan
switch to be at 1-4 position
HEATING AIR CONDITIONING 1-67
Checkpoint
Trouble Cause
Countermeasure
Replace the expansion valve
Expansion valve is defective
Repair or replace the
compressor
Compressor is faulty
Continued from the previous
page
NG
NG
OK
Check to see if the pressure
of low pressure side is about
2.1 kg/cm
2
(30 psi/2.1
×
10
2
kPa)
1-68 HEATING AIR CONDITIONING
SPECIAL SERVICE TOOL
ITEM NO.
ILLUSTRATION
PART NO.
PART NAME
5-8840-0629-0
(J-39500-A)
5-8840-0630-0
(J-39500-220A)
5-8840-0631-0
(J-39500-220ANZ)
ACL-2
5-8840-0117-0
(J-33939)
Clutch hub holder
ACL-3
5-8840-0122-0
(J-33944-A)
Clutch plate remover
ACL-4
5-8840-0121-0
(J-33943)
Clutch pulley puller pilot
ACL-5
5-8840-0111-0
(J-8433)
Clutch pulley puller
ACL-6
5-8840-0120-0
(J-33942)
Shaft seal cover remover
and installer
ACL-9
5-8840-0368-0
(J-34614)
Shaft seal guide
HEATING AIR CONDITIONING 1-69
ITEM NO.
ILLUSTRATION
PART NO.
PART NAME
CDL-10
5-8840-0118-0
(J-33940)
Clutch pulley installer
OTL-1
5-8840-0007-0
(J-8092)
Driver handle
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