Overview
The ZF 0730.107.794 WASHER is a precision-engineered, OEM genuine shim component designed for heavy-duty construction machinery transmissions. This hardened steel washer functions as a critical axial spacer, maintaining precise clearances between rotating assemblies within the transmission housing. Specifically, it sits on the main shaft cluster to control end-play and ensure proper load distribution across gear sets. The SKU 0730.107.794 is manufactured to ZF’s exacting tolerances, guaranteeing a perfect fit and long service life in demanding off-highway applications. When paired with a 2094104412: MAIN SHAFT or a 2094304054: MAIN SHAFT, this washer ensures optimal gear mesh alignment and prevents metal-on-metal contact.
Symptoms of Failure
When the ZF 0730.107.794 WASHER wears beyond specification, operators will notice distinct performance degradation. Transmission oil leaks from the main shaft seal area occur as excessive axial play damages the sealing surface. Gear engagement hesitation or grinding during shifts becomes common, particularly under load in construction equipment. Abnormal low-frequency humming or knocking noises from the transmission housing indicate the washer has thinned, allowing gear clash. Finally, erratic clutch pack engagement in powershift transmissions points to incorrect end-play caused by a worn 0730.107.794 washer.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.107.794 |
| Material | Hardened Spring Steel (DIN 1.3505) |
| Outer Diameter | 42.0 mm |
| Inner Diameter | 28.0 mm |
| Thickness | 2.5 mm |
| Weight | 0.012 kg |
| Surface Finish | Phosphate Coated |
| OEM Reference | ZF 0730.107.794 |
Compatibility
This genuine ZF washer is primarily used in the WG180 and WG200 series powershift transmissions, commonly found in wheel loaders, dozers, and graders from manufacturers like Liebherr, Volvo, and Caterpillar. It also fits select WG120 and WG150 models where main shaft end-play adjustment is required. For proper installation, always verify the washer thickness against the 2094106010: SHIFT SYSTEM specifications and the 2094206001: GEARSHIFT SHAFT clearance tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from engine to gear cluster |
| 2094304054 | MAIN SHAFT | Alternate spline configuration for WG200 series |
| 2094106010 | SHIFT SYSTEM | Hydraulic valve body for clutch modulation |
| 2094206001 | GEARSHIFT SHAFT | Mechanical linkage for gear selection |
| 2094306053 | GEARSHIFT SHAFT | Longer variant for remote shift applications |
| 0630513070 | SNAP RING | Secures washer and shaft assembly axially |
| 2094306019 | WASHER | Thicker shim variant for alternate clearance |
| 0732040444 | COMPRESSION SPRING | Provides preload on shift fork assembly |
| 0732040728 | COMPRESSION SPRING | Higher rate spring for heavy-duty clutches |
| 2093206001 | BUSH | Bearing surface for gearshaft support |
Frequently Asked Questions
Q: Can I reuse the ZF 0730.107.794 washer during a rebuild?
A: No. This washer is a single-use component due to its role in setting precise axial clearances. Even minimal wear alters end-play, leading to premature gear and bearing failure. Always install a new OEM genuine washer.
Q: How do I measure if the 0730.107.794 washer is worn?
A: Use a micrometer to measure thickness at three points around the circumference. If any measurement is below 2.45 mm (0.096 in), or if there is visible scoring or discoloration, replacement is mandatory.
Q: Does this washer work with the WG180 transmission?
A: Yes, the 0730.107.794 is a standard shim in WG180 and WG200 series. However, always cross-reference your transmission serial number with the ZF parts catalog to confirm stack-up requirements.
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