maintenance NISSAN 300ZX 1984 Z31 Heather And Air Conditioner Workshop Manual

DISCHARGING, EVACUATING, CHARGING AND CHECKING
ELECTRIC L EAK-DETECTOR
The leak detector IS a delicate device that detects
small amounts of halogen
In order to
use the device properly, read the
manuals
put out by each maker and perform the
specified maintenance and inspections
Nominal senmivity 15.25 g (0 53.0 88 ozllvear
.. SHA733A
GENERAL PRECAUTIONS FOR HANDLING
LEAK DETECTOR
1 Each fitting must be checked around its entire
periphery
SHA734A
2 Move probe close to and 3 mm (0 12 in) away
from the point to be checked
SHA735A
3 The moving speed of the probe must be main-
tained
at less than 3 cm (1 2 in)/sec
SHA736A 3 cm (1 2 ml
MEASUREMENT STANDARD
If any reaction is noted using a detector having a
nominal sensitivity of 15 to 25 g (0.53 to 0.88 od/
year, that portion checked be found as leaking, and
therefore must be repaired.
Oil deposited during assembling musr be wiped
off before inspection
If any trace of oil is noted at and around con-
nection fittings,
it is a sure indication that re-
frigerant
is leaking
When the
gas leaking point is found, disconnect
that line and replace
the O-ring. Check seal seat
for fit for further use and then tighten connec-
tions
to the specified torque.
Do not overtighten.
HA-I 7