352-7058 Main Stem Return Spring

Description

The main spool return spring is responsible for providing the force necessary to return the main spool of the control valve to its default or neutral position after actuation. Its design uses a coil spring structure for efficient energy storage and release. When the control valve is actuated, the main spool moves to different positions, changing the flow of hydraulic fluid. Once the actuating force is removed, the main spool return spring applies an opposing force to pull the main spool back to its original position.

Attributes

Right-hand coil direction in the return spring enhances valve unit stability
Withstands high pressure and high temperature conditions

Applications

The main spool return spring is used to maintain proper valve operation and positioning, ensuring smooth operation and accurate fluid flow control.

Specifications

Material	Carbon Steel

Compatible Equipment

Generator Sets: 3512B
Excavators: 330D L, 320D2 GC, 320D2 L, 320, 330D2 L, 336F L, 336E, 323, 330 GC, 329D L, 323D L, 328D LCR, 326, 320E, 330D2, 336 GC, 336, 336D L, 320D L, 325D L, 323GC, 320 GC, 336D2 L, 325D, 336E L, 330GC, 326GC, 335F LCR, 324D L, 320D FM, 336F LN, 320C, 336E LN, 323D2 L, 320D RR, 324D, 336F, 340, 329E, 329E L, 336D2 GC, 330D, 320D3, 320D GC, 326D L, 325, 323 GC, 323 GX, M325D L MH, 326 GC, 320 GX, 333, 323D, 323D2, 340D2 L, 340D L, 335, 333 GC, 330, 320D2, 336D, 336D2, 326D2, 329D, 329D2, 320D, 326D2 L, 329D2 L

Machine Model	320, 320 GC, 320 GX, 320C, 320D, 320D FM, 320D GC, 320D L, 320D RR, 320D2, 320D2 GC, 320D2 L, 320D3, 320E, 323, 323 GC, 323 GX, 323D, 323D L, 323D2, 323D2 L, 323GC, 324D, 324D L, 325, 325D, 325D L, 326, 326 GC, 326D L, 326D2, 326D2 L, 326GC, 328D LCR, 329D, 329D L, 329D2, 329D2 L, 329E, 329E L, 330, 330 GC, 330D, 330D L, 330D2, 330D2 L, 330GC, 333, 333 GC, 335, 335F LCR, 336, 336 GC, 336D, 336D L, 336D2, 336D2 GC, 336D2 L, 336E, 336E L, 336E LN, 336F, 336F L, 336F LN, 340, 340D L, 340D2 L, 3512B, M325D L MH
Equipment Type	Excavators, Generator Sets
Part Source	Genuine OEM

Machine Model

320, 320 GC, 320 GX, 320C, 320D, 320D FM, 320D GC, 320D L, 320D RR, 320D2, 320D2 GC, 320D2 L, 320D3, 320E, 323, 323 GC, 323 GX, 323D, 323D L, 323D2, 323D2 L, 323GC, 324D, 324D L, 325, 325D, 325D L, 326, 326 GC, 326D L, 326D2, 326D2 L, 326GC, 328D LCR, 329D, 329D L, 329D2, 329D2 L, 329E, 329E L, 330, 330 GC, 330D, 330D L, 330D2, 330D2 L, 330GC, 333, 333 GC, 335, 335F LCR, 336, 336 GC, 336D, 336D L, 336D2, 336D2 GC, 336D2 L, 336E, 336E L, 336E LN, 336F, 336F L, 336F LN, 340, 340D L, 340D2 L, 3512B, M325D L MH

Equipment Type

Excavators, Generator Sets

Part Source

Genuine OEM

352-7058 Main Stem Return Spring