Evacuating The System - Kubota WSM L3560 Workshop Manual

L3560, L4060, L4760, L5060, L5460, L6060, WSM

(2) Evacuating the System

Evacuating the System
1. Discharge refrigerant from the system by R134a refrigerant
recovery and recycling machine.
2. Connect the charging hose (6) (red) to the HI pressure side
charging valve and connect the charging hose (5) (blue) to the
LO pressure side charging valve.
3. Connect the center charging hose (7) (green) to a vacuum
pump inlet.
4. Open both valves (3), (4) of manifold gauge fully. Then run the
vacuum pump to evacuate the refrigerant cycle.
(For approx. 15 minutes.).
5. When LO pressure gauge (1) reading is more than 750 mmHg
(299 in.Hg), stop the vacuum pump and close both valves (3),
(4) of manifold gauge fully.
6. Wait for over 5 minutes with the HI and LO pressure side valves
(3), (4) 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) LO Pressure Gauge
(2) HI Pressure Gauge
(3) HI Pressure Side Valve
(4) LO Pressure Side Valve
(5) Blue Hose
(6) Red Hose
(7) Center Charging Hose (Green)
10-S18
9Y1210824CAS0042US0
(a) To LO Pressure Side Charging
Valve
(b) To Vacuum Pump
(c) To HI Pressure Side Charging
Valve
9Y1210824CAS0043US0
KiSC issued 03, 2016 A
CABIN