Description

Overview

Manual Slack Adjuster 28 Spline 38mm 3 Hole supports accurate brake stroke on heavy trailer S cam drum brakes. This helps maintain consistent braking and can reduce uneven lining wear. The multi hole arm layout also makes it easier to set the right geometry after service work.

Features

This manual slack adjuster keeps adjustment simple when you want direct control.

• 28 spline camshaft fitment for common heavy trailer brake setups
• Three arm holes to suit different clevis and rod alignments
• Selectable arm length positions from 5in to 7in
• Manual adjuster design for straightforward workshop servicing

Specifications and Materials

This slack adjuster suits a 1 1/2in (38mm) camshaft and uses a 1/2in (12.7mm) clevis pin. It suits general purpose trailer applications where you need dependable adjustment and stable linkage alignment.

• Spline count: 28
• Spline size: 1 1/2in (38mm)
• Arm holes: 3
• Arm length options: 5in (127mm), 6in (152mm), 7in (178mm)

For inspection and adjustment guidance, use the NHVR National Heavy Vehicle Inspection Manual brakes section to confirm brake hardware condition and brake stroke checks

Part number: FB5027.

Compatibility and Fitment

Confirm that your brake uses an S cam foundation brake with a 28 spline, 38mm camshaft before ordering. Also check the required arm offset and linkage travel so the clevis aligns without binding. Manual Slack Adjuster 28 Spline 38mm 3 Hole suits general purpose trailer setups where a three hole arm provides the needed clevis position.

Compliance and Safety

Treat brake adjustment as a safety critical task and follow your maintenance schedule. Inspect the camshaft splines, clevis pin, and bush points during installation so the adjuster moves freely. Recheck brake stroke after a short bedding in run to confirm stable settings.

Trailer Applications

Manual Slack Adjuster 28 Spline 38mm 3 Hole typically suits heavy trailers that run common S cam drum brake packages. It works well on general purpose builds where simple manual adjustment matches the workshop process.

• General purpose box and flat top trailers
• Skel and container chassis trailers with drum brakes
• Plant and equipment trailers using S cam brakes
• Service and repair replacement for worn slack adjusters

Cross-reference and Suitability

At present, we could not confirm interchange part numbers for this item from manufacturer cross reference documentation. Instead, match by spline count, spline size, arm holes, and arm lengths to avoid selecting the wrong variant.

Why Choose ICS Trailers

ICS Trailers backs you with practical selection help so you can match the right brake hardware. We focus on heavy trailer parts and keep listings technical so you can order with confidence. Manual Slack Adjuster 28 Spline 38mm 3 Hole is a core service item that helps keep S cam brakes operating as intended. Browse Foundation Brakes parts at ICS Trailers in the Foundation Brakes parts category at ICS Trailers to match the right adjuster and brake hardware.