wsm L503 Workshop Manual page 584

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Evacuating the System
1. Discharge refrigerant from the system by R134a refrigerant
recovery and recycling machine. (Refer to "Discharging the
system".)
2. Connect the charging hose (7) (red) to the HI pressure side
charging valve and connect the charging hose (9) (blue) to the
LO pressure side charging valve.
3. Connect the center charging hose (8) (green) to a vacuum pump
inlet.
4. Open both valves (6), (10) of manifold gauge fully. Then run the
vacuum pump (1) to evacuate the refrigerant cycle. (For approx.
15 minutes.)
5. When LO pressure gauge (10) reading is more than 750 mmHg
(299 in.Hg), stop the vacuum pump (8) and close both valves (6),
(10) of manifold gauge fully.
6. Wait for over 5 minutes with the HI and LO pressure side valves
(6), (10) of gauge manifold closed, and then check that gauge
indicator does not return to 0.
7. If the gauge indicator is going to approach to 0, check whether
there is a leaking point and repair if it is, and then evacuate it
again.
(1) Vacuum Pump (Running)
(2) Vacuum Pump Adaptor
(3) LO Pressure Gauge
(4) HI Pressure Gauge
(5) Compressor
10-S18
(6) HI Pressure Side Valve (Open)
(7) Red Hose
(8) Green Hose
(9) Blue Hose
(10) LO Pressure Side Valve (Close)
W1018495
KiSC issued 02, 2007 A
CABIN