1972 Dunbier H3269 Mackay Brake Cable Adjuster | Marine Trailer Part

🔧 Product Description

Dunbier Mechanical Brake-Cable Adjuster – Part Number: 1972

A threaded cable adjuster for Dunbier mechanical trailer brake systems. It provides a controlled method of setting cable tension and compensating for normal pad and linkage wear while maintaining sufficient free play for full brake release.

⚙️ Key Features

• Threaded mechanical brake-cable adjuster
• Allows accurate cable-tension setting
• Suits Dunbier mechanical disc-brake systems
• Locking-nut arrangement retains adjustment
• Replacement for seized or damaged adjusters

📏 Specifications

• Mackay reference: H3269
• Application: 4mm mechanical brake cable system
• Thread, cable hole and bracket fit must match the existing setup

🔄 Cross Reference & Related Parts

• Dunbier: 1972
• Mackay: H3269
• Brake cable: Dunbier 1974 / H3266
• Cable clamps: Dunbier 1973 or 1976
• Mechanical caliper: Dunbier 1971

🚤 Trailer Compatibility & Application

• Suitable for Dunbier mechanical override and handbrake cable layouts
• Not used in hydraulic brake circuits
• Brake shoes or pads must be adjusted before final cable tension

🔌 Function

Sets the effective cable length so coupling and handbrake movement applies the mechanical calipers correctly.

⚠️ Common Signs of Failure

• Threads are seized, stripped or heavily corroded
• Adjustment repeatedly loosens
• Cable cannot be tensioned within the available range
• Brakes drag after adjustment
• Adjuster is bent or misaligned

🛠️ Installation & Safety

• Release all brake tension before replacement
• Lubricate threads with a suitable corrosion-resistant compound
• Adjust wheel-end brakes before shortening the cable
• Leave sufficient free play for complete caliper release
• Tighten the lock nut and test service and parking brakes

📦 Condition

• Brand new Dunbier Marine Products trailer component
• Supplied as one mechanical brake-cable adjuster
• Supplied in original or equivalent packaging