Overview
This ZF 0730.109.588 WASHER is an OEM genuine shim component engineered for precise axial clearance control within heavy-duty construction machinery transmissions. Positioned between planetary gear sets and the differential housing, this hardened steel washer maintains critical end-play tolerances that prevent gear train misalignment. The SKU 0730.109.588 is a factory-specified replacement for ZF power shift transmissions operating under extreme torque loads in wheel loaders and dozers.
Symptoms of Failure
- Transmission oil leaks at axle housing interface — A worn 0730.109.588 washer allows axial movement that compromises seal contact, causing fluid seepage around the 5838300626: DIFFERENTIAL HOUSING.
- Intermittent gear slipping under load — Excessive clearance from a flattened washer reduces clutch pack clamping force, leading to torque loss during excavation cycles.
- Metallic grinding noise from transmission sump — When the washer fractures, debris circulates through the 5838109012: DIFFERENTIAL assembly, scoring gear teeth.
- Hard shifting between forward/reverse — Thickness deviation beyond 0.05mm alters planetary carrier positioning, delaying hydraulic engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Inner Diameter | 42.0 mm |
| Outer Diameter | 68.0 mm |
| Thickness | 2.5 mm (selective fit) |
| Material | Case-hardened steel (DIN 1.7131) |
| Surface Hardness | 58-62 HRC |
| Weight | 0.045 kg |
| OEM Reference | 0730.109.588 |
Compatibility
This washer is dimensionally validated for ZF WG180, WG200, and WG310 series transmissions used in construction machinery. It also fits select ZF 4WG-200 and 6WG-310 power shift units. Always verify clearance with the 0750117075: TAPER ROLLER BEARING preload specifications during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Torque distribution between axles |
| 0750117075 | TAPER ROLLER BEARING | Radial/axial load support |
| 2093209023 | DIFFERENTIAL | Final drive gear reduction |
| 5838300626 | DIFFERENTIAL HOUSING | Enclosure for gear set |
| 0631329088 | SPRING PIN | Alignment dowel for housing |
| 5838300811 | THRUST WASHER | Axial load distribution |
| 5838300721 | AXLE BEVEL GEAR | Power transfer to wheels |
| 5838300633 | AXLE | Rotational support shaft |
| 5838300753 | THRUST WASHER | Side gear clearance shim |
| 5838300818 | THRUST WASHER | Pinion gear thrust surface |
Frequently Asked Questions
Q: Can I reuse the 0730.109.588 washer during a rebuild?
No. This is a single-use selective shim. Reusing it risks incorrect preload on the 2093209023: DIFFERENTIAL assembly, leading to premature bearing failure.
Q: How do I measure if this washer is worn?
Use a micrometer at three points around the circumference. Replace if thickness varies more than 0.03mm from nominal 2.5mm, or if any surface pitting is visible.
Q: Does this part work with the 5838300811 thrust washer?
Yes. The 0730.109.588 and 5838300811: THRUST WASHER are often stacked together to achieve precise axial clearance in the differential carrier.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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