Product Descreiption
The Dongfeng Truck Adjuster Arm Series is a critical component of the vehicle’s braking system, designed to maintain optimal brake shoe clearance and ensure consistent, reliable braking performance in medium- and heavy-duty commercial trucks. Manufactured to Dongfeng’s OEM specifications, these adjuster arms are engineered for durability, precision, and compatibility with a range of Dongfeng truck models, including the EQ140, EQ145, EQ153, EQ1168, and other series.
Key Applications
- Compatible Dongfeng Truck Models:
- EQ140, EQ145, EQ153, EQ1141, EQ1168, EQ1250, and similar 6×4, 8×4, or 4×2 cargo trucks, dump trucks, and municipal vehicles.
- Ideal for fleet operators, logistics companies, and construction fleets requiring consistent braking performance under heavy loads and frequent use.
- Industrial Use:
- Mining trucks, agricultural machinery conversions, and light-duty military transports.
Technical Specifications
- Material & Construction:
- Primary Material: High-strength cast iron (HT250 or equivalent) or forged alloy steel (40Cr) for enhanced durability.
- Surface Treatment:
- Zinc plating or black oxide coating for corrosion resistance.
- Phosphate finish to improve grease retention and reduce friction.
- Adjusting Mechanism:
- Ratchet-type or worm-gear adjuster for precise brake shoe clearance control.
- Self-adjusting (in some models) to compensate for brake lining wear automatically.
- Key Dimensions (Example: Dongfeng EQ153 Adjuster Arm):
- Total Length: ~280–350 mm (11.0–13.8 inches) (varies by model).
- Mounting Hole Spacing: ~120–150 mm (4.7–5.9 inches) (center-to-center).
- Thread Size: M12 × 1.75 or M14 × 2.0 (for adjusting screw).
- Weight: ~1.5–2.5 kg (3.3–5.5 lbs).
- Design Features:
- One-Piece Construction: Reduces weak points and enhances structural integrity.
- Adjustable Clearance: Manual or self-adjusting mechanism for easy maintenance.
- Corrosion-Resistant Components: Stainless-steel springs and plated hardware for longevity.
- Performance Ratings:
- Maximum Load Capacity: Designed to handle the braking forces of 10–20-ton payload trucks.
- Operating Temperature Range: -40°C to +120°C (-40°F to +248°F).
- Adjusting Torque: ~15–25 N·m (11–18 lb·ft) for manual adjustment.
- Fatigue Life: >500,000 adjustment cycles (tested per GB/T 5763 standards).
Key Features
- Precise Brake Adjustment:
- Ensures consistent brake shoe clearance, reducing braking lag and uneven wear.
- Ratchet or worm-gear mechanism allows fine-tuning during maintenance.
- Durability & Corrosion Resistance:
- Cast iron or forged steel construction withstands heavy vibrations and impacts.
- Zinc plating and phosphate finishes protect against rust and corrosion.
- Self-Adjusting Option (in select models):
- Automatically compensates for brake lining wear, reducing maintenance frequency.
- Ideal for fleets seeking lower downtime and labor costs.
- OEM-Grade Compatibility:
- Direct replacement for Dongfeng part numbers (e.g., DF-AA-XXXX – refer to vehicle manual).
- Fits original brake assemblies without modifications.
- Cost-Effective Maintenance:
- Extends brake system lifespan by preventing overheating and uneven wear.
- Reduces the risk of brake failure due to improper clearance.
