Overview
The ZF 0730.304.941 ADJUSTMENT PLATE is a precision-machined shim component engineered for critical clearance regulation within ZF heavy-duty powershift transmissions. This OEM genuine part, identified by SKU 0730.304.941, sits directly between the clutch pack assembly and the transmission housing, controlling axial end-play and ensuring proper hydraulic pressure distribution. By maintaining exact tolerances, this adjustment plate prevents premature wear on adjacent components such as the 2098117002: HOUSING and the 2098301052: REAR AXLE HOUS. It is a non-deformable steel plate that acts as the final mechanical stop for rotating clutch elements, making it indispensable for transmission rebuilds and overhauls in construction machinery.
Symptoms of Failure
- Delayed gear engagement or clutch slip under load: When the adjustment plate wears beyond specification, clutch pack clearance increases, causing hydraulic pressure loss and sluggish shifting.
- Metallic grinding noise during transmission operation: A worn or warped plate allows metal-on-metal contact between the clutch hub and the 0636103300: STUD assembly, producing audible chatter.
- Transmission oil contamination with fine metallic particles: Friction from an out-of-tolerance plate generates debris that circulates through the hydraulic system, accelerating wear on seals and bearings.
- Intermittent loss of drive in forward or reverse gears: Excessive axial movement caused by a degraded adjustment plate prevents the clutch packs from fully compressing, leading to intermittent power loss.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0730.304.941 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 195.0 mm |
| Inner Diameter | 142.5 mm |
| Thickness | 2.50 mm (selective fit range: 2.40–2.60 mm) |
| Weight | 0.34 kg |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0730.304.941 |
Compatibility
This adjustment plate is specifically designed for ZF WG-series powershift transmissions commonly used in wheel loaders, dozers, and graders. It directly fits the following ZF models: WG180, WG200, WG210, and WG220. The part also appears in certain ERGOPOWER and ECOMIX variants where clutch pack shimming is required. For proper installation, always pair this plate with a new 0637101164: HEXAGON NUT to ensure correct torque retention on the clutch hub shaft.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098117002 | HOUSING | Encloses the clutch pack and supports the adjustment plate |
| 2098301052 | REAR AXLE HOUS. | Houses the final drive and differential assembly |
| 0636103300 | STUD | Threaded fastener for securing the adjustment plate |
| 0637101164 | HEXAGON NUT | Locks the stud in place against the plate |
| 0636102566 | STUD | Alternative length stud for deeper housing bores |
| 0636100960 | STUD | Short stud for shallow mounting points |
| 0637101167 | HEXAGON NUT | Flanged nut for vibration resistance |
| 0634303044 | O-RING | Seals the adjustment plate bore against oil leakage |
| 2098317013 | BRAKE HOUSING | Contains the parking brake drum adjacent to the plate |
| 2098317028 | BRAKE HOUSING | Alternate brake housing for different axle configurations |
