Overview
The ZF 0730.005.752 SHIM is a precision-engineered OEM genuine part designed to establish the correct axial clearance and preload within ZF heavy-duty transmission assemblies. This thin, hardened steel component sits between the transmission housing and bearing races or gear faces, compensating for manufacturing tolerances and ensuring optimal gear mesh alignment. The SKU 0730.005.752 is critical for maintaining the structural integrity of the gear train, preventing unwanted movement that can lead to premature wear. When installed alongside a TRANSMISSION HOUSING, this shim guarantees that rotating components remain securely positioned under high torque loads.
Symptoms of Failure
- Excessive axial gear play – When the shim compresses or wears, you will notice a distinct clunking or knocking sound from the transmission during load changes, particularly in construction machinery operating under heavy stress.
- Oil leaks at housing joints – A degraded shim can alter the alignment of the HOUSING, creating gaps that allow transmission fluid to escape past seals and gaskets.
- Intermittent gear slipping – Incorrect shim thickness causes insufficient bearing preload, leading to momentary loss of power transfer when the machine is under load on inclines.
- Vibration during operation – Worn shims allow the gear cluster to shift axially, producing low-frequency vibrations that can be felt through the chassis and steering controls.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.005.752 |
| Material | Hardened Spring Steel (C67S) |
| Thickness | 1.50 mm ± 0.02 mm |
| Outer Diameter | 85.0 mm |
| Inner Diameter | 62.0 mm |
| Weight | 0.035 kg |
| OEM Reference | ZF 0730.005.752 |
| Surface Finish | Phosphate coated for corrosion resistance |
Compatibility
This shim is engineered for use in ZF WG series powershift transmissions commonly found in construction machinery. It is directly compatible with the WG180, WG200, and WG250 transmission models. The part also fits select ZF 4WG-200 and ZF 6WG-250 variants used in wheel loaders, graders, and dump trucks. For proper installation, ensure the mating surfaces of the TRANSMISSION HOUSING are clean and free of burrs. Always verify the shim stack height using a depth micrometer when replacing the SCREW PLUG that secures the adjustment access port. After installation, check the OIL LEVEL GAGE to confirm proper fluid fill before operation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101128 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train |
| 4108201296 | HOUSING | Secondary housing component for bearing support |
| 4475280018 | SCREW PLUG | Seals the shim adjustment access port |
| 0501215601 | OIL LEVEL GAGE | Visual indicator for transmission fluid level |
| 4108303034 | COVER | Protective cover for transmission access points |
| 0636015120 | HEXAGON SCREW | Fastener for securing housing components |
| 0636302015 | SCREW PLUG | Threaded plug for hydraulic circuit ports |
| 0501325471 | SEALING RING | O-ring for fluid-tight sealing |
| 0730365280 | TYPE PLATE | Identification plate with transmission serial number |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox for power take-off |
