oil dipstick GREAT WALL HOVER 2006 Service Repair Manual

CD Player and Air Conditioning System-13
1 .CC6460K air conditioning system is designed with SD7V16 compressor, whose refrigeration oil type as
specified is SP-10P AG; hence application of other type of refrigeration oil may damage the parts and compo
nents of the compressor. When the
air conditioning system goes through maintenance and replacement of
parts, it should be added with new refrigeration oil, whose volume is listed as follows: the evaporator and
condenser: 30ml; the drier: 20ml; the pipeline: 10ml.
Addition of refrigeration oil can be available with two methods: The direct addition and the vacuum suction
2 .D irect addition method
a. remove the oil filler plug and fill with the specified SP-10P AG refrigeration oil.
b. observe through the hole of oil filter plug and rotate front plate of clutch to make the piston connecting rod right positio n in the
center of the hole of oil filter plug.
c. insert the dipstick along the right side of piston connecting rod till the top of dipstick touches the case of the compresso
r
d. pull out the dipstick and examine the graduations (grooves) of refrigeration oil, the readings shall be within the range of 4-6
scales
.
e. screw firmly the oil filter plug with the fastening torque of 14.7± 4.9N
.m
3. Vacuum suction method:
Firstly pump out the refrigerating system to the vacuum of 0.2x105Pa, and then fill with the specified 0.2x10 5 Pa refrigeration oil;
the detailed steps are as follows:
a. switch off the high-pressure manual valve and the auxiliary valve.
b. dismantle the high-pressure side hose from the manifold pressure gauge and insert it into the oil cu
p
c. open the auxiliary valve and have the refrigeration oil sucked into the refrigerating system from the oil cup.
d. when the refrigeration oil in the oil cup is almost pumped out to the vacuum, then immediately turn off the auxiliary valve
to
prevent the air from being sucked into the system
.
e. secure the hose adapter at high-pressure side to the manifold pressure gauge, start the vacuum pump and turn on the high-
pressure manual valve, then turn on the auxiliary valve to pump the system to the vacuum state of 0.2x10
5Pa, keep such state
for 15mins so as to discharge out the air flowing into the system along with the oil.
V ol ume of Refrigeration Oil Addition and its Methods
2.ai r h eating system
T r oubl e Cau ses o f the trouble
H e ati n g n otsuppl i ed or
no t s
uf f i cientl y suppl i ed 1.
blow erof air c ondition erf ai l u re 2.relay o f the blow erdamage
d
3. heati n g w ater pipe bloc k e d 4 . coo ling water p i pe b lock ed
5. col d/h ot damp erexecutor damage d 6. ins
uf f i cien t c oo ling l iqu id
N o rotation ofblow er 1.
f use burned
down orpoor contac t o f the switch
2. mo tor o f the blowe r burne d d ow
n
3. op en circ uit o f h igh- sp eed relay o f the blow er
4. speed-ad j usti n g m odule d am aged
5. short c ircu it
leak age o f w ater W ater p ipe o f ai rhe ati n g a ged, inse cu re j oi nt
O v erhe at 1.
speed-ad j usti n g r esi sto r o f the f an d am aged
2. col d/h ot damp erexecutor damaged
I nsu f f i cien t h otair
vo lume f or d efro stin
g 1.
mode executor dama ge
d
2. f al li n g o f fof the d riv e ro
d
3. damp ernot in p osi ti o
n
4. air v ent b l ock ed
5. inad equa te heatin g s
upply
6. inst
alla tion ofwind tunn elno t fi t
7. circ uit d i sco nn ecte
d