Range Rover County LWB (LH) V8-4.2L (1993)
Technical Service Bulletin # TEC820197
Date: 970314
A/C System - R 134A Conversion Kit
03/14/97
82/01/97/NAS
SUBJECT
Refrigerant R-134a Retrofit
MODEL
Range Rover Classic
Defender 110
AFFECTED VEHICLES
LP
LH
87-94 R-12 Systems
LJ
LD
R-12 system
DETAIL
CFC-free refrigerant, R-134a, may now be used as a replacement refrigerant in older air-conditioning Systems previously charged with R-12 refrigerant.
Installation of a new receiver-drier and the exchange of a number of seals within the system permits recharging the older system with R-134a and
compatible ESTER refrigerant oil. Whenever an upgrade is performed, it is important to conduct a thorough inspection of all system components to
ensure that they are in good working order and in proper condition for the continued effective operation of the air-conditioning system.
CAUTION:
Refer to the precautions and warnings in the workshop manual for information and precautions before starting procedure. Refrigerants must be
handled cautiously and with due regard to their chemical properties. Observe all precautions.
ACTION REQUIRED
Install new system components, ESTER refrigerant oil and charge system with R-134a refrigerant
PARTS INFORMATION
JMG100370 Range Rover Classic R-134a Conversion Kit
JMG100380 Defender 110 R-134a Conversion Kit
Locally sourced items available from HVAC supplier:
Refrigerant R-134a
^
Range Rover - 1.05 kg (2.25 lb)
^
Defender 110 - 0.9 kg (2 lb)
ESTER Refrigerant Oil (NOT PAG oil)
^
Range Rover - 150 ml (5 fl oz)
^
Defender 110 - 240 ml (8 fl oz)