In compact excavator operations, swing systems are constantly under “micro-load repetition”—short rotations, frequent stops, and fast directional switching. Over time, the change is not a sudden breakdown but a gradual shift in behavior: the machine feels less crisp in rotation, positioning becomes slightly less precise, and the operator begins compensating more during every cycle.
Item NO.:
9704052Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSThe 9704052 swing motor assembly for PC60-7, PC70-7, PC70FR, and PC75 is positioned for field replacement use where the goal is to re-establish stable rotational rhythm in everyday excavation work rather than introduce system upgrades or performance enhancement.

| Part Number | 9704052 |
|---|---|
| Part Name | Swing Motor Assy |
| Compatible Brand | Komatsu |
| Applicable Models | PC60-7 / PC70-7 / PC70FR / PC75 |
| Application | Excavator |
| Material | Hardened alloy steel |
| Product Color | dark protective finish |
| Working Temperature | -30°C to 110°C |
| Key Function | Upper structure rotation drive system |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Helps normalize swing timing behavior during repetitive digging and repositioning cycles.

Maintains consistent rotational response even when excavation resistance varies across different soil conditions.

Reduces mechanical resistance buildup to support smoother long-duration swing operation.


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