SAFARI

AIRCONDITIONING

4. Start engine.

5. Turn on A/C switch.

Check that A/C operates at each position of the

blower switch. If the blower does not operate, check

the circuit breaker.

6 Check magnetic clutch operation.

If the magnetic clutch does not engage, check the

A/C fuse.

7 Check that idle increases. When the magnetic

clutch engages, engine speed should increase.

8 Check that condenser fan motor rotates.

9 If there is no cooling or it is insufficient, inspect

for leakage.

If the piping connections are soiled with oil, it

indicates leakage of refrigerant. Inspect by the gas

leak detector and retighten any loose connectors.

Important

Retightening of pipe connections must be done

using two wrenches to avoid twisting of the tubing.

10 Check the Amount of Refrigerant.

a. Operate the air conditioner under the conditions

shown in the table on RHS.

Note:

When the ambient temperature ismore than 40

(113’F) and the pressure on the high pressure

gauge becomes 1.86 MPa (19 kg/ cm

G) or more

with the conditions in table, run the engine at the

idling speed to cool down the condenser.

If the high pressure gauge of manifold gauge still

indicates too high, perform this test in a cool place,

open all doors and set the blower speed to LO.

CHECK OIL LEAK

fig. 46

LOOSENING

OVER TORQUING

WRONG

fig . 47

Item

Condition

Doors

Completely open

Temperature setting Maximum cooling

Model

Face

Blower sped

Recirculation / fresh air

change

Recir.air

HFC 134a CFC 12

Engine speed

1500 rpm 2000rpm

A/C

Conditions for checking