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2-23
TRAVEL OPERATION
TRAVEL FORWARD OPERATION
2)
(1)
C1
D1
A1
B1
From RCV
From RCV
P1 Bypass passage
P2 Bypass passage
TRAVEL LEFT
TRAVEL RIGHT
Tank passage
Pb1
Pc1
14092MC18
During the travel forward operation, the hydraulic fluid of the pump A2 is supplied to the travel left
motor and the hydraulic fluid of the pump A1 is supplied to the other travel right motor.
The pilot pressure from the pilot control valve is supplied to the spring side of pilot port (pb1, pc1).
And it shifts travel right and left spools in the left direction against springs. Hydraulic fluid from the
pump A1 flow into the travel right spool through the bypass passage and hydraulic fluid from the
pump A2 flow into the travel left spool through the bypass passage.
Then they are directed to the each travel motor through port A1 and C1. As a result, the travel
motors turn and hydraulic fluid returns to the tank passage through the travel spools.
In case of the reverse operation, the operation is similar.
TRAVEL LEFT
TRAVEL RIGHT
C1
D1
A1
B1
From RCV
From RCV
P1 Bypass passage
Tank passage
P2 Bypass passage
Pa1
Pd1
14092MC17
TRAVEL BACKWARD OPERATION
(2)
Summary of Contents for HX140L
Page 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 209: ...4 5 MEMORANDUM...
Page 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Page 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...