Kubota B1830, Workshop Manual, Page: 514 / 548

CABIN B1830,B2230,B2530,B3030, WSM
10-S9
When LO and HI Valve is Opened
Two circuits are established.
Port (
A ) → HI pressure gauge (2)
→ LO pressure gauge (1)
→ Port ( B )
→ Port ( C )
→ Port ( D ) (Schrader valve must be opened)
NOTE
• Schrader valve (D) must be opened.
9Y1210003CAS0010US0
(2) Refrigerant Charging Hose
The charging hoses are classified into three colors. Each
charging hose must be handled as follows:
• The air conditioner manufacture recommends that the blue
hose (3) is used for the LO pressure side (suction side), the
green hose (5) for refrigeration side (center connecting port)
and the red hose (4) for
HI pressure side (discharged side).
(When connecting)
• Push the quick disconnect adaptor (6) into the charging valve,
and push on part A until a click is heard.
NOTE
• When connecting, push carefully so the pipe doesn't bend.
• When connecting the quick disconnect connector, should
the sleeve (7) move before the quick link connector can be
connected to the charging valve, move the quick sleeve to
its original position and try again.
• When some refrigerant remains in the charging hose at the
time of connections, it may be difficult to connect the quick
link connector. In this case, perform the operation after
removing any residual pressure in the hose. (Remove the
residual pressure by pushing the pusher (8).)
(When reassembling)
• While holding on to part A of the quick disconnect adaptor, slide
part B up.
NOTE
• After removing the adaptor, ensure to cap the quick
disconnect adaptor service valve.
9Y1210003CAS0011US0
(1) LO Pressure Gauge (2) HI Pressure Gauge
(1) LO Pressure Side Valve
(2) HI Pressure Side Valve
(3) Blue Hose
(4) Red Hose
(5) Green Hose
(6) Quick Disconnect Adaptor
(7) Sleeve
(8) Pusher
(9) Sleeve
a: CLICK
KiSC issued 05, 2012 A