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2-30-1
BUCKET IN OPERATION (TYPE 2)
During the bucket in operation, the pilot secondary pressure from RCV is supplied to port Pa5 of
the spring side and shifts the bucket spool in the left direction.
The bypass passage is shut off by the movement of the bucket spool and the hydraulic fluid from
pump A2 entered P1 parallel passage and is directed to the port A5 through the check 1.
At the same time, the hydraulic fluid from P1 bypass passage is directed to the port A5 through
the check 2.
Following this it flows into the head side of the bucket cylinder.
The return flow from the rod side of the bucket cylinder returns to the bucket spool through the
port B5. Thereafter it is directed to the hydraulic oil tank through the tank passage.
B5
A5
Tank passage
P1 Bypass passage
From RCV
Check 2
Bucket spool
P1 Parallel passage
Check 1
Pa5
140L2MC134
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...