Overview
The ZF 0730.307.288 ADJUSTMENT PLATE is a precision-machined shim component engineered for critical clearance control within ZF powershift transmissions used in heavy construction machinery. This OEM genuine part, identified by SKU 0730.307.288, sits between the transmission housing and the clutch pack assembly, where it establishes the exact axial preload necessary for proper clutch engagement. By maintaining the correct end-play tolerances, this adjustment plate prevents internal component wear and ensures consistent hydraulic pressure distribution. It is typically installed during transmission rebuilds or when replacing the 2098117002: HOUSING to restore factory-specified clearances.
Symptoms of Failure
- Delayed or harsh gear engagement: When the adjustment plate wears or deforms, clutch pack clearances become excessive, causing noticeable lag or jarring shifts during operation.
- Progressive transmission overheating: An improperly seated plate can create internal friction imbalances, leading to elevated oil temperatures and reduced hydraulic efficiency.
- Intermittent power loss under load: Worn plates allow clutch slippage, particularly when the machine is climbing grades or pushing heavy loads, resulting in a “soft” transmission feel.
- Metallic debris in transmission fluid: As the plate surface degrades, fine steel particles contaminate the oil, often visible during routine fluid changes or filter inspections.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0730.307.288 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Thickness | 2.50 mm ±0.05 mm |
| Outer Diameter | 168.0 mm |
| Inner Diameter | 92.0 mm |
| Weight | 0.34 kg |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0730.307.288 |
Compatibility
This adjustment plate is designed for ZF’s heavy-duty powershift transmission families commonly found in wheel loaders, graders, and excavators. It is directly compatible with the WG180, WG200, and WG250 series, as well as the 4WG-310 and 6WG-200 models. The plate interfaces with the 2098301052: REAR AXLE HOUS. and is secured using the 0636103300: STUD and 0637101164: HEXAGON NUT fasteners. Always verify your transmission serial number against ZF’s parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098117002 | HOUSING | Main transmission casing |
| 2098301052 | REAR AXLE HOUS. | Axle housing assembly |
| 0636103300 | STUD | Threaded mounting stud |
| 0637101164 | HEXAGON NUT | Fastening nut for stud |
| 0636102566 | STUD | Alternate length mounting stud |
| 0636100960 | STUD | Short mounting stud |
| 0637101167 | HEXAGON NUT | Lock nut for stud assembly |
| 0634303044 | O-RING | Hydraulic seal |
| 2098317013 | BRAKE HOUSING | Service brake housing |
| 2098317028 | BRAKE HOUSING | Parking brake housing |
