Overview
The ZF 0730.107.840 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty ZF transmissions. Positioned between the main shaft assembly and the gear cluster, this shim compensates for manufacturing tolerances and wear, ensuring that gear engagement depths remain within factory specifications. The SKU 0730.107.840 is commonly encountered during rebuilds of construction machinery transmissions, where even a 0.1mm deviation in end-play can lead to premature component fatigue. This shim works in concert with the 2094104412: MAIN SHAFT and the 2094304054: MAIN SHAFT to maintain proper load distribution across the drivetrain.
Symptoms of Failure
When the ZF 0730.107.840 shim wears or is incorrectly selected during assembly, operators will notice distinct mechanical issues. A primary symptom is excessive axial play in the main shaft, which manifests as a clunking noise during throttle-on and throttle-off transitions. Another common failure sign is hard shifting or gear clash, particularly when engaging forward or reverse under load, as the gear teeth lose their optimal overlap. Third, intermittent transmission overheating can occur because misaligned gears generate friction and metal debris. Finally, vibration at specific RPM ranges often points to a compromised shim, as the shaft loses its concentric support from the 2094106010: SHIFT SYSTEM and the 2094206001: GEARSHIFT SHAFT.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.107.840 |
| Material | Case-hardened steel (C15E) |
| Thickness | 2.50 mm (nominal) |
| Outer Diameter | 85.0 mm |
| Inner Diameter | 62.0 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.107.840 |
| Hardness | HRC 58-62 |
Compatibility
This shim is integral to ZF’s powershift transmission families used in construction machinery. It is specifically validated for the WG180, WG200, and WG210 series, which are common in wheel loaders and telehandlers. The part also appears in certain 4WG-200 and 6WG-200 variants where main shaft end-play adjustment is required. Always verify the shim stack thickness against the service manual when pairing it with the 2094304054: MAIN SHAFT to avoid over- or under-shimming.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from engine to gear cluster |
| 2094304054 | MAIN SHAFT | Alternate shaft variant for high-torque applications |
| 2094106010 | SHIFT SYSTEM | Controls hydraulic clutch engagement |
| 2094206001 | GEARSHIFT SHAFT | Transmits shift fork movement |
| 2094306053 | GEARSHIFT SHAFT | Secondary shift shaft for range selection |
| 0630513070 | SNAP RING | Secures shim and bearing in position |
| 2094306019 | WASHER | Provides hardened thrust surface |
| 0732040444 | COMPRESSION SPRING | Pre-loads shift rail detent mechanism |
| 0732040728 | COMPRESSION SPRING | Higher-rate spring for heavy-duty shift forks |
| 2093206001 | BUSH | Supports gearshaft radial load |
Frequently Asked Questions
Q: How do I know if the 0730.107.840 shim needs replacement?
A: Measure the main shaft end-play with a dial indicator. If the axial movement exceeds 0.30 mm, the shim is likely worn or the stack height is incorrect. Replace it with a new OEM shim and re-measure.
Q: Can I reuse this shim during a rebuild?
A: ZF recommends always installing a new 0730.107.840 shim during any major transmission overhaul. The shim surface work-hardens over time, and reusing it can lead to inaccurate clearance settings.
Q: Is this shim compatible with the 4WG-200 transmission?
A: Yes, the 0730.107.840 is a standard service part for the 4WG-200 series. However, always cross-reference the shim thickness with the transmission’s serial number range to ensure correct gear engagement depth.
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Phone: +86 158 2286 3467 |
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