2-52
1
Sleeve
2
Poppet
3
Poppet
seat
4
Spring
5
Spring
seat
6
Shim
7
Piston
8
Stopper
9
Plug
10
O-ring
11
O-ring
Construction of relief valve
Construction of relief valve
The valve casing contains two cartridge type relief valves that stop the regular and reverse
rotations of the hydraulic motor. The relief valves relieve high pressure at start or at stop of swing
motion and can control the relief pressure in two steps, high and low, in order to insure smooth
operation.
Function of relief valve
Function of relief valve
Figure illustrates how the pressure acting
on the relief valve is related to its rising
process. Here is given the function,
referring to the figure following page.
10
8
5
1
4
3
9
6
9
2
11
P=pressure, T=time
P
Ps
P
2
P
1
1
2
3
4
T
RELIEF VALVE
RELIEF VALVE
3)
3)
(1)
(1)
(2)
(2)
145WF2SM25
2-48(2)
Summary of Contents for HX145 LCR
Page 11: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 204: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV...
Page 627: ...8 155 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 657: ...8 185 8 185 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...
