Subaru XT 1988 Service Manual page 1057

AIR CONDITIONING SYSTEM 4-7
GAS LEAKAGE TEST
Charge R-12 into the compressor and pressurize (to the
saturation pressure). Then check the gas leakage by using an
electric leak detector.
1) Immediately direct air to the shaft seal portion before
measurement in order to blow off any gas from around the
sea.
In this state, the deflection of the needle must be less than
1 x 10-
4
mmHg-Q/sec (20 gr/year).
2) For other portions, deflection of needle must be less than
0.6 x 10-
4
mmHg·Q/sec (12 gr/year).
CLUTCH ASSEMBLY OPERATION TEST
1) Rotate the rotor with a hand. No abnormal noise nor play
must be noted.
2) Apply a voltage of 12V (battery voltage) across the coil
terminals. The clutch plate must be attracted.
3) Make sure the armature gap is 0.5 to 0.8 mm (0.020 to
0.031 in).
BREAK·IN TEST
After completing the above-mentioned tests, install the com-
pressor to the refrigerant cycle unit (if unavailable, actual
vehicle). and perform break-in operation for 30 minutes under
the following conditions:
Conditions:
Rotating speed: ',800 rpm
High pressure: 1,324 ± 98 kPa
(13.5 ± , kg/cm 2 , 192 ± 14 psi)
Low pressure: 147 - 196 kPa
(1.5 - 2 kg/cm2, 21 - 28 psi)
DV LEAKAGE TEST
Stop the compressor when the pressure difference between the
Condenser
REMOVAL AND INSTALLATION
1) Disconnect battery negative terminal.
2) Discharge refrigerant from low pressure side.
3) Remove horn ASSY, stay, hood lock ASSY and front
hood cable cover.
/;
1,.
V,.-
e
Hood cable cover
~ ~L4.'559
--=====lU
: : : i i i i i ! ! ! ! : : ! : i l ~ ~~~
Stay
L4-1560
Fig.
71
outlet side and inlet side is 686 kPa (7 kg/cm
2
,
100 psi). 4) Disconnect pipe connections.
Pressure rise in the inlet side must be less than 490 kPa
(5 kg/cm2, 71 psi) within five minutes.
35
- , \ ) - - r - - - - - - - . - - c - - - - - - - - ; " " " ' / " -
Pipe bracket -
'--1
U
U
L4-1561
Fig. 72