Fiat 1996 Brava Service Manual page 595

Auxiliary units
Manually operated climate control
Bravo-Brava
98 range
50.
DRAINING THE SYSTEM
Before carrying out any operation
which could result in R 134 A fluid
escaping, the climate control system
must be drained.
During the operation of draining the
system, wear protective gloves and
goggles for protection against con­
tact with any jets of R 134 A fluid.
In order to faciliate the draining of the fluid
from the vehicle air conditioning system, the
engine should be started up and the system
left to run for 10-15 minutes before com­
mencing the draining operations.
To drain the vehicle climate control system,
use the Cleaner 134 equipment manufac­
tured by ICF and carry out the following op­
erations:
1. Undo the plug for the needle valve (low
pressure side) which is at the end of a pipe
on the pipe which connectors the evapo­
rator to the compressor.
2. Undo the plug for the needle valve (high
pressure side) which is at the end of a pipe
which is an integral part of the connector,
at the end of the pipe w h i c h connects the
condenser to the drier filter.
3.4. Fit the rapid attachment connector for
the ends of the blue (low pressure side)
and red (high pressure side) flexible
connecting pipes for the Cleaner R134
equipment on the above mentioned nee­
dle valves; then carry out the operations
for recovering and recycling the refriger­
ant fluid descried and illustrated in the
Bravo-Brava 2nd volume Manual (print
no. 506.670/01).
N O T E To improve safety, the rapid attach­
ment connectors for the pipes con­
nected to the equipment and the
needle valves have different diame­
ters: the low pressure side ones are
larger and the high pressure side
ones are smaller. Before attaching
the rapid attachment connectors to
the needle valves, the knurled ring
nut shown by the arrow must be
moved upwards.
2 4
Print no. 506.670/17