Toyota Tundra 2005 Service - Repair - Maintenance page 3377

AC-12
Low Pressure
Service Valve
High Pressure
Service Valve
Properly
Charged
Insufficiently
Charged
AIR CONDITIONING - AIR CONDITIONING SYSTEM
3. CHARGE REFRIGERANT INTO REFRIGERANT SYS-
TEM
If there is no leak after refrigerant leak check, charge the proper
amount of refrigerant into the refrigeration system.
CAUTION:
z
Never run the engine when charging the system
through the high pressure side.
z
Do not open the low pressure side valve when the
system is being charged with liquid refrigerant.
(a) Open the high pressure side valve fully.
(b) Charge specified amount of refrigerant, then close the
high pressure side valve.
HINT:
The system is fully charged if bubbles cannot be seen through
the sight glass.
(c) Partially charge the refrigeration system with refrigerant.
(1) Prepare the vehicle:
N13790
(2) Open the low pressure side valve.
CAUTION:
Do not open the high pressure side valve.
(d) Access cab, Standard cab:
Charge refrigerant until bubbles disappear and check the
pressure on the gauge through the sight glass.
HINT:
Double cab models do not have a sight glass. When inspecting,
use a manifold gauge set.
I11172
z
Running engine at 1,500 rpm
z
Single A/C:
Front blower speed control dial at "HI" posi-
tion
z
Dual A/C:
Front and rear blower speed set at "HI" posi-
tion
z
Single A/C:
Front temperature control dial at "MAX.
COOL" position
z
Dual A/C:
Front temperature control dial at "MAX.
COOL" position
Rear temperature control set at 18.5°C
(65°F)
z
Air inlet control set at "RECIRC"
z
Fully open doors (Sliding roof: closed)
Author : Date :
5039