2-32-1
BUCKET IN OPERATION WITH BOOM UP OPERATION (TYPE 2)
When combined operation, mostly same as previous page but the fluid from P1 bypass passage
is empty.
When the boom up and bucket in combined operation, the boom up pilot pressure is supplied the
pilot port (P04) of bucket spool stroke limit and the piston is shifted to the right and then the
bucket in spool stroke is limited and the open of the bucket in spool is reduced.
Accordingly, the oil of the bucket in spool is reduced and the boom speed up.
B5
A5
Tank passage
From RCV
Bucket spool
P1 Parallel passage
Pa5
P04
Piston
140L2MC129
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...