Hyundai HX145LCR Manual page 87

(2) (2) SWING LEFT OPERATION WITH ARM OR BOOM OPERATION SWING LEFT OPERATION WITH ARM OR BOOM OPERATION
When combined operation, mostly same as previous page but the fluid from P2 bypass passage
is empty.
So only the fluid from parallel passage is supplied to the swing motor. Also, parallel passage is
installed the orifice of swing logic valve for supplying the fluid from pump A1 to the boom or the
arm operation prior to the swing operation. In case of the swing right operation with arm or boom
operation, operation is similar.
Boom up pilot pressure
Po3
Orifice
Swing logic valve
Tank passage Swing spool
C2
D2
Boom 1 spool
From RCV
Pd2
P2 Parallel passage P2 Bypass passage
P2 Parallel passage P2 Bypass passage
145LCR2MC20
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