Overview
The ZF 0730.304.945 ADJUSTMENT PLATE is a precision-machined OEM genuine component designed to maintain critical axial clearances within ZF powershift transmissions used in heavy construction machinery. This plate functions as a shim or spacer, ensuring correct preload and alignment between the clutch pack and the transmission housing. The SKU 0730.304.945 is engineered to withstand high cyclic loads and thermal expansion, directly influencing shift quality and torque transfer efficiency. It sits adjacent to the 2098117002: HOUSING, where it prevents metal-on-metal contact and compensates for wear over the transmission’s service life.
Symptoms of Failure
When the ZF 0730.304.945 adjustment plate wears beyond tolerance, operators may notice these specific failure modes:
- Delayed or harsh gear engagement – Insufficient plate thickness reduces clutch pack preload, causing slipping during shifts under load.
- Transmission oil leaks at the housing interface – A warped or worn plate compromises the seal between the 2098301052: REAR AXLE HOUS. and the main case, leading to fluid seepage.
- Abnormal metallic debris in the oil pan – Fretting wear on the plate surface generates fine steel particles that contaminate the hydraulic circuit.
- Intermittent loss of drive in forward gears – Uneven plate compression allows clutch piston travel to exceed design limits, reducing holding capacity.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.304.945 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 148.5 mm |
| Inner Diameter | 92.0 mm |
| Thickness | 2.50 mm (service limit: 2.35 mm) |
| Weight | 0.18 kg |
| OEM Reference | ZF 0730.304.945 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This adjustment plate is primarily used in ZF WG180, WG200, and WG211 series powershift transmissions found in wheel loaders, dozers, and graders from manufacturers such as Caterpillar, Volvo, and Liebherr. It also fits select ZF 4WG-310 and 6WG-260 models. The plate works in conjunction with the 0636103300: STUD and 0637101164: HEXAGON NUT to secure the clutch housing assembly. Always verify your transmission serial number against ZF’s parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098117002 | HOUSING | Encloses clutch pack and supports adjustment plate |
| 2098301052 | REAR AXLE HOUS. | Houses differential and final drive components |
| 0636103300 | STUD | Locates and secures housing to transmission case |
| 0637101164 | HEXAGON NUT | Fastens stud to specified torque |
| 0636102566 | STUD | Secondary alignment stud for rear housing |
| 0636100960 | STUD | Short stud for brake housing attachment |
| 0637101167 | HEXAGON NUT | Lock nut for brake housing studs |
| 0634303044 | O-RING | Seals adjustment plate to housing interface |
| 2098317013 | BRAKE HOUSING | Contains parking brake components |
| 2098317028 | BRAKE HOUSING | Alternate brake housing for heavy-duty applications |
