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2-68
BRAKE VALVE
Structure
The brake valve portion mainly consists of the following parts:
Spool
By shifting the spool (31), the discharged oil from hydraulic motor is automatically shut off or
restricted according to the condition and give the effect of holding, accelerating, stopping and
counterbalance operations.
(See page 2-66, (2) Operation)
Check valve (built in the spool)
This valve is located in the oil supplying passage to hydraulic motor, and at the same time
functions to lock oil displacement. Therefore, this valve serves as not only a suction valve but
also a holding valve for hydraulic motor.
5)
36
33
37
31
35
34
125LCR2TM28
(1)
①
②
31 Main
spool
33 Spring
34 Restrictor
35 Restrictor
spring
36 O-ring
37 Spring
seat
Summary of Contents for HX130 LCR
Page 11: ...1 1 SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10 ...
Page 174: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV ...
Page 536: ...8 108 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29 ...
Page 566: ...8 138 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10 ...