2-34
SWING OPERATION
SWING OPERATION
SWING LEFT & RIGHT OPERATION
SWING LEFT & RIGHT OPERATION
During the swing left operation, the pilot secondary pressure from the RCV is supplied to the port
Pd2 of the spring side and shift the swing spool in left direction. The bypass passage is shut off by
the movement of the swing spool and the hydraulic fluid from pump A1 flows into swing spool
through the P2 parallel passage. Then it is directed to swing motor through the port D2.
As the result, swing motor turns and flow from the swing motor returns to the hydraulic oil tank
through the port C2, swing spool and the tank passage.
In case of swing right operation, the operation is similar to swing left operation but the pilot
secondary pressure from the RCV is supplied to the port Pc2 of the spring opposite side.
Accordingly, the hydraulic fluid from pump A1 flows into swing motor through the port C2 and
returns to the hydraulic oil tank through the port D2 and the tank passage.
6)
6)
(1)
(1)
C2
D2
From RCV
P2 Parallel passage
P2 Bypass passage
Tank passage
Swing spool
Pd2
Swing logic valve
Check
145LCR2MC32
P2 Parallel passage
P2 Bypass passage
Summary of Contents for HX145 LCR
Page 11: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 204: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV...
Page 627: ...8 155 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 657: ...8 185 8 185 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...
