Overview
The ZF 0730.307.818 ADJUSTMENT PLATE is a precision-machined OEM genuine component designed to maintain critical clearances within the planetary gearset of ZF heavy-duty transmissions. This shim-like plate sits between the clutch pack and the housing assembly, ensuring correct axial play for smooth gear engagement. As part number 0730.307.818, it is essential for preventing premature wear in construction machinery transmissions. When installed alongside the 2098117002: HOUSING, this adjustment plate guarantees that hydraulic pressure is evenly distributed across the clutch discs.
Symptoms of Failure
- Delayed gear engagement or slipping – When the adjustment plate wears beyond tolerance, clutch packs lose their preload, causing hesitation when shifting from neutral to drive.
- Metallic grinding noises from the transmission – A worn 0730.307.818 plate allows excessive axial movement, leading to metal-on-metal contact between the 2098301052: REAR AXLE HOUS. and rotating components.
- Intermittent loss of power under load – Construction machinery experiencing sudden power drops during excavation or grading often traces back to a misaligned adjustment plate that fails to maintain clutch stack height.
- Oil contamination with metallic debris – As the plate erodes, fine steel particles circulate through the hydraulic system, accelerating wear on seals and the 0636103300: STUD assemblies.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 0730.307.818 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 195 mm ±0.1 mm |
| Inner Diameter | 142 mm ±0.05 mm |
| Thickness | 2.5 mm (selective fit) |
| Weight | 0.34 kg |
| Surface Finish | Ground, Ra 0.8 µm |
| Hardness | HRC 58-62 |
Compatibility
This adjustment plate is engineered for ZF WG-series powershift transmissions commonly found in wheel loaders, dozers, and graders. It directly fits the following models:
- ZF WG180 – Used in Caterpillar 950/962 series
- ZF WG200 – Compatible with Volvo L120/L150 loaders
- ZF WG210 – Fits Komatsu WA380/WA480 models
- ZF 4WG-200 – Older generation transmissions requiring selective shimming
For proper installation, always pair this plate with a new 0637101164: HEXAGON NUT and verify the 2098117002: HOUSING bore for wear before reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098117002 | HOUSING | Encloses clutch pack and adjustment plate |
| 2098301052 | REAR AXLE HOUS. | Supports output shaft and final drive |
| 0636103300 | STUD | Fastens housing to transmission case |
| 0637101164 | HEXAGON NUT | Secures stud with controlled torque |
| 0636102566 | STUD | Alternative length for deep housings |
| 0636100960 | STUD | Short stud for cover plates |
| 0637101167 | HEXAGON NUT | Lock nut with nylon insert |
| 0634303044 | O-RING | Seals hydraulic pressure ports |
| 2098317013 | BRAKE HOUSING | Contains parking brake discs |
| 2098317028 | BRAKE HOUSING | Updated version with cooling ports |
