Doosan DX60R Shop Manual page 862

3. If refrigerant does not flow freely into system, try starting
engine first before operating air conditioner.
• Temperature
Cooling.
Blower Speed Setting: Hi (3 step).
Engine Speed: 1,300 - 1,500 rpm.
When charging refrigerant system with the engine
running;
• Always keep refrigerant supply container in
the upright position.
• Never open the high side pressure valve.
4. Open the manifold gauge low side valve and charge
system to standard capacity.
Gauge Dial
High Side Gauge
Low Side Gauge
NOTE: These standards are for outside temperatures
between 30° - 35°C (86° - 95°F). The gauge
readings may vary for extreme temperature
conditions.
• When outside temperature is low, warm the
refrigerant supply container with warm water
not exceeding 40°C (104°F). Do not allow
water to come in contact with the charging
adapter valve handle.
• When outside temperature is high, cool off
refrigerant supply container and condenser
to aid the refrigerant charging process.
5. Close low-pressure side valve.
6. Shut off engine and close refrigerant supply container
adapter valve. Disconnect manifold gauge hoses from
vehicle.
Electrical System
Page 50
control switch setting:
CAUTION
Standard Reading
13 - 20 kg/cm
(185 - 285 psi)
1.5 - 3.5 kg/cm
(21 - 49 psi)
CAUTION
Maximum
2
2
SP001687