382300166 XCMG GR2605 motor grader preload rod

382300166 XCMG GR2605 motor grader preload rod

The 382300166 preload rod is a core preload-bearing component of engineering machinery operating mechanisms. It is used for preload fixing, load adjustment, and structural reinforcement of hinged and connected parts. Precise preload ensures tight component connections and adapts to heavy-duty operating conditions.

Core Functions and Roles

**Preload Fixing:** Achieves precise preload fixing of components through thread adjustment, eliminating connection gaps, preventing loosening and shifting due to vibration during equipment operation, and improving connection reliability.

**Load Adjustment:** The preload force can be adjusted according to operating conditions to adapt to different load scenarios, dispersing stress concentration and protecting connected parts and core components.

**Structural Reinforcement:** As a load-bearing support component, it enhances the structural strength of hinged and connected parts, withstanding tensile and compressive forces during operation, and ensuring the overall stability of the mechanism.

**Adaptation and Linkage:** Precisely matches the installation interface of the equipment operating mechanism and works with preload nuts, washers, and other accessories to achieve integrated preload fixing and ensure smooth operation.

Key Technical Parameters

Model: 382300166
Name: Pretensioning Rod (High-Strength Pretensioning Tie Rod)
Suitable Equipment: Articulated parts and connecting mechanisms of construction machinery such as excavators, loaders, and rake-like operating devices
Material: High-strength alloy steel (heat-treated by tempering and quenching, impact-resistant, fatigue-resistant, and deformation-resistant)
Operating Temperature: -40℃～+200℃
Core Features: High pretensioning accuracy, high strength, wear-resistant and durable, easy adjustment, suitable for heavy-duty working conditions
Suitable Scenarios: Pretensioning and fixing of construction machinery operating mechanisms, load adjustment, and reinforcement of articulated parts

Common Faults and Troubleshooting

Fault Symptoms: Stripped threads on the pretensioning rod, deformation and bending of the rod body, weld cracking, and failure of pretensioning force; loose parts, abnormal noise, and jamming during operation.

Troubleshooting Points: After stopping the machine, check the appearance of the rod body for deformation, cracks, and thread integrity; check whether the pretensioning force meets the standard; check the tightness of the connecting parts; if abnormal, stop use immediately and replace.

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1. 382300167 Rear-release hydraulic hose
2. 382300109 Pull-down plate
3. 382300114 Upper pull rod
4. 805046649 Bolt M12×100
5. 329900303 Thickened flat washer
6. 382300112 Pin II
7. 805238367 Nut M12
8. 380603418 Copper bushing II
9. 382300156 Base bracket
10. 805046843 Bolt M24×110
11. 805338299 Washer 24
12. 805203192 Nut M24
13. 805046596 Bolt M24×60 14 382300102 Pin IV
15 381301984 Washer
16 329900301 Thickened Flat Washer
17 805046508 Bolt M8×20
18 805004837 Bolt M24×90
19 382300166 Preload Rod
20 801103215 Oil Cup M10×1

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