3-31
5. COMBINED SWING AND TRAVEL OPERATION
Pc42
Pb3
Pd41
B2
A2
Pb1
A1
B1
Pa1
T1
V3
Pd2
Pc2
D2
C2
Pc1
D1
C1
P0
DR0
Pd1
Ai
B4
B5
A5
Pa5
Pb5
Pa4
Pb4
C5
D5
D4
C4
Pc41
Rs
C6
D6
DR4
P03
Patt
P02
Pn2
Pn1
Po5
Puo
P04
DR2
Pc3
Pa21
Pb21
Pb20
Pa20
DR1
DR5
DR3
Pc40
Pd40
PS
PS
Pi1(Pump)
Pi2(Pump)
ARM
CYLINDER
BUCKET
CYLINDER
BOOM
CYLINDER
TURNING
JOINT
TRAVEL MOTOR
SWING MOTOR
A1
PUMP
A2
PUMP
PILOT
PUMP
HYDRAULIC TANK
Pa20
Pd41
Pc40
Pc41
DOZER
CYLINDER
P02
P04
Pc5
Pd5
Pd6
Pc6
Pu
P1
P2
P3
Pd0
TRAVEL
TRAVEL
BOOM 1
SWING
BOOM 2
ARM 1
OPTION B
OPTION C
(DOZER)
ARM
BUCKET
ARM 2
REGEN
STRAIGHT
TRAVEL
SPOOL
RIGHT
LEFT
140L3HC27
When the swing and travel functions are operated simultaneously, the swing spool and travel spools
in the main control valve are moved to the functional position by the pilot oil pressure from the
remote control valve and straight travel spool is pushed to the right by the pilot oil pressure from the
pilot pump.
The oil from the A1 pump flows into the travel motors through the RH travel spool of the left control
valve and the LH travel spool of the right control valve via the straight travel spool.
The oil from the A2 pump flows into the swing motor through in the straight travel spool.
When the pressure of the travel motors is lower than the pressure of the swing motor, some oil from
the A2 pump flows into the travel motors through the check valve and orifice in the straight travel
spool. This prevents the rapid slowdown of the travel.
The upper structure swings and the machine travels straight.
Содержание HX145 LCR
Страница 11: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Страница 204: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV...
Страница 553: ...8 82 Insert O rings to the relief valve 30 and reassemble them to rear cover 20 This completes assembly 17 32038SM42...
Страница 627: ...8 155 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Страница 636: ...8 164 125LCR8TM61 After assembling spring 44 in order clamp plug 41 Tightening torque 5 kgf m 36 lbf ft 31...
Страница 657: ...8 185 8 185 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...
Страница 668: ...8 196 14 15 3 Install cover 3 to body 1 and tighten bolts 14 Torque 10 12 5 kgf m 72 3 90 4 lbf ft 7 21078DA10...