Service warnings
U-2
5. connect the sst 49 c061 004 to the refrigerant
reservoir.
6. place the refrigerant reservoir on the scale.
7. open all valves of the sst 49 c061 001.
Attention
Shutting off valve of manifold pressure gauge set
immediately after switching off vacuum pump，
otherwise, the vacuum pump oil will flow back into
the cooling recirculation system and cause low
efficiency of a/c system.
8. start vacuum pump and keep it operating for 15
minutes.
9. verify that high-pressure and low-pressure side
readings of the sst 49 c06l 00l are -101 kpa
(-760 mmhg，-29.9 inhg). Close valves of the
sst 49c061 00l.
10. stop vacuum pump and wait for 5 minutes.
11. examine high-pressure and low-pressure side
readings of the sst 49 c06l 001. if the reading
has changed, inspect for leakage and then
repeat from step 7. if the reading has not
changed, go to the next step.
12. open valve of refrigerant reservoir.
13. weigh the refrigerant reservoir to verify proper
charging quantity.
Standard quantity of charged refrigerant: 560 g
{19.7 oz}
Warning
If the system is charged with overmuch refrigerant
for inspection of leakage, when any leakage occurs,
the refrigerant will be emitted into the atmosphere.
In order to prevent accidental leakage of refrigerant,
which can destroy the stratosphere ozone in the
stratosphere, follow the proper procedures and
charge with only a small quantity of refrigerant
when inspecting for leakage.
14. open the low-pressure side valve of sst 49 c061
001.
15. when the high-pressure side reading reaches 98
kpa (1.0 kgf/cm2,14 pis), close low-pressure
side valve of sst 49 c061 001.
16. inspect the condenser pipe joint for leakage by
using the sst (leakage tester). If there is no
leakage, go to step 18. if the connection is
loose, tighten it and go to the next step.
17. inspect for leakage again. If there is no leakage
after tightening the joint, go to next step. If
leakage still occurs at the same joint, discharge
refrigerant and then repair the joint. Repeat the
charging procedure from step 7.
Air purge valve Joint pin side
Refrigerant tank
Vacuum pump
Scale
Close
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