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2-56-10
Operating principle
When one of the RCV lever (1) is set to the operation position, the each spool is shifted to left
or right and the pilot oil flow is blocked. Then the pilot oil go to SH of the time delay valve (35).
This pressure moves spool (5) to the leftward against the force of the spring(8), so pilot pump
charged oil (P3) goes to the chamber G through port PG.
This pressure is applied to move the parking piston (15) to the upward against the force of the
brake spring (16). Thus, it releases the brake force.
16
15
G
1
2
P3
5
8
SH
PG
Time delay valve
1
RCV lever
2
Main control valve
5
Spool
8
Spring
15
Parking piston
16
Brake spring
刯
a.
140WF2SM36
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...