SANY LATIN AMERICA
4-149
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
6. When refrigerant charging is finished,
close the Lo-pressure valve of the mani-
fold pressure gauge and the valve of the
fl
uorine cylinder.
7. Check carefully for air leaks with a leak
detector.
8. When ambient temperature is low
When refrigerant charging gets difficult
due to low temperature, put the cylinder in
warm water (max. 40
°
C).
9. When ambient temperature is high
When ambient temperature is very high,
cool the compressor with an electrical fan.
ZX215-1002163
Lo
Hi
Lo
Hi
Water less than 40°C
(Do not use hot water)
Compressor
running
Hi-pressure valve
(OFF)
Lo-pressure
valve (ON)
Cylinder valve
(ON)
ON OFF
When no foam
is seen
Valve
OFF OFF
CAUTION
●
Opening the Hi-pressure valve of the
pressure gauge will cause pressurized
gas to counterfl ow and cause the hoses
and the fl uorine cylinder to explode, re-
sulting in serious damage.
●
When engine is running and charging in
progress, placing the fluorine cylinder
upside down will cause liquid refriger-
ant to be sucked directly into the com-
pressor and cause liquid compression,
resulting in equipment damage.
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