Dongfeng Kinland truck spare parts Left hydraulic lock bolt assembly 5002170-C0100

A core advantage of the 5002170-C0100 assembly is its exceptional load-bearing capacity, tailored to Kinland’s heavy-duty operations. The lock bolt is crafted from 40CrNiMo alloy steel, undergoing quenching and tempering (880°C heating + 560°C cooling) to achieve a tensile strength of 850MPa—capable of withstanding 22,000N of axial force without bending or shearing. The lock body is made of ductile cast iron (QT500-7), featuring reinforced ribs at high-stress areas (bolt insertion hole, hydraulic port) that distribute pressure evenly, preventing cracking under 32MPa hydraulic pressure (Kinland’s typical system pressure). This strength ensures the assembly securely locks left-side hydraulic components (e.g., dump bed lift cylinders) in place, even when the truck carries 25+ ton cargo—critical for preventing accidental lowering that risks cargo damage or operator injury

The 5002170-C0100 assembly integrates dual-protection locking logic to avoid hydraulic system failures. It uses a spring-loaded piston that automatically engages the lock bolt when hydraulic pressure drops (e.g., hose leaks, pump malfunctions), creating a mechanical backup to stop unintended movement. The lock engages in ≤0.4 seconds—fast enough to prevent sudden shifts during pressure loss—and releases smoothly once pressure is restored (no manual adjustment needed). For Kinland dump truck operators, this reliability eliminates the risk of “dropped beds” during loading/unloading, complying with industrial safety standards (ISO 13849-1 for safety-related control systems). Additionally, the bolt’s serrated locking surface enhances grip, preventing slippage even if hydraulic fluid contamination occurs

Built to endure harsh operating conditions, the 5002170-C0100 assembly features a robust anti-corrosion system. The lock bolt and body are coated with a zinc-nickel layer (20-24μm thickness) that passes 1,200-hour salt spray tests, resisting rust and oxidation from road salt, rain, or hydraulic fluid spills—common in construction or coastal areas. The bolt’s thread is pre-lubricated with high-temperature anti-seize compound, reducing friction during engagement and preventing seizing due to dirt or debris. The assembly’s hydraulic seals are made of FKM rubber, which maintains flexibility and fluid tightness in -40°C to 125°C temperatures—avoiding leaks in extreme cold or engine-bay heat. Rigorous aging tests confirm the assembly functions reliably for 7+ years, outperforming generic locks that corrode or seize within 2-3 years

The 5002170-C0100 assembly is designed for hassle-free use, minimizing Kinland truck downtime. It comes pre-assembled with the lock bolt, spring, piston, and mounting hardware (hex nuts, lock washers), eliminating on-site assembly. The lock body’s pre-drilled holes align with Kinland’s left-side hydraulic brackets, requiring only a torque wrench to secure (torque specification: 110-120 N·m) and taking 25 minutes or less to install. The assembly’s sealed design needs no regular lubrication—only periodic visual checks of seals and bolt tightness. For fleet managers, this low-maintenance design reduces upkeep costs and ensures Kinland trucks stay operational for time-sensitive tasks like construction material transport or waste disposal