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Pilot Control Valve (Work Lever / Joystick)
GENERAL DESCRIPTION
THEORY OF OPERATION
Structure
The remote control valve contains four push rods, spring holders, spools and return springs, which are
located in the valve casing. The valve works as a pressure reduction valve.
The housing has six ports, which include input port P, tank port T, and four secondary pressure ports.
The electric horn switch is installed in the valve handle. Gear pump pressure is used for operating control
spools.
Function
1.
Neutral Mode
When the lever is in neutral mode, the spool is thrust upward by return spring, and the force of
balancing spring, which determines the secondary discharge pressure, is not transmitted to the
spool. The input port is closed and the pressure of the output port is the same as the pressure of the
tank port T.
2.
Control Mode
When push rod is pushed, the balance spring begins to compress, and spring force is conveyed to
the spool. Ports P and T are then connected together and the pilot pressure is conveyed to the area.
Output pressure works on the bottom of the spool, thrusting the spool upward until it is balanced with
the power of the balance spring. The secondary pressure (output pressure), therefore, changes in
proportion to the compression force of the balance spring.
Содержание Solar 470LC-V
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Страница 110: ...S0403050K Page 2 Counterweight Return to Master Table of Contents TABLE OF CONTENTS General 3 Removal 5 Installation 7...
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Страница 120: ...S0405120K Page 4 Fuel Tank PARTS LIST 3 7 5 6 4 23 10 9 8 19 14 35 35 33 33 20 12 11 13 26 16 1 FRONT ASS1180L Figure 1...
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Страница 350: ...S0707365 Page 12 Travel Motor With Gearbox A6V160HD PARTS LIST Travel Motor Figure 12 HTS6331...
Страница 352: ...S0707365 Page 14 Travel Motor With Gearbox A6V160HD Travel Motor Rotary Group Figure 13 HTS6321...
Страница 354: ...S0707365 Page 16 Travel Motor With Gearbox A6V160HD Travel Motor Control HTS6331 Figure 14...
Страница 356: ...S0707365 Page 18 Travel Motor With Gearbox A6V160HD Travel Motor Speed Reduction Gearbox Assembly 3033 Figure 15...
Страница 361: ...S0707365 Page 23 Travel Motor With Gearbox A6V160HD TRAVEL MOTOR DISASSEMBLY SECTIONAL VIEW HTS063S Figure 16...
Страница 383: ...S0707365 Page 45 Travel Motor With Gearbox A6V160HD 29 Remove gasket Figure 91 Figure 91 3061...
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Страница 402: ...S0708325K Page 4 Main Pump Rexroth SECTIONAL VIEW A8VO200LA1KH1 63 ASS0010L Figure 1...
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Страница 413: ...S0708325K Page 15 Main Pump Rexroth 2 Sealing surface of housing 2 Figure 27 2 ASS0270L Figure 28...
Страница 414: ...S0708325K Page 16 Main Pump Rexroth REMOVE THE CONTROL HOUSING ASS0280L Figure 29...
Страница 439: ...S0708325K Page 41 Main Pump Rexroth 4 Gear tooth marks must align with each other ASS0860L Figure 87...
Страница 447: ...S0708325K Page 49 Main Pump Rexroth 5 Install seal and controller ASS1040L Figure 105 ASS1050L Figure 106...
Страница 450: ...S0708325K Page 52 Main Pump Rexroth INSTALLATION OF COVER AUXILIARY DRIVE ASS1100L Figure 111...
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Страница 647: ...1ATTACHMENTS...
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