This Mack air compressor maintenance covers the Meritor WABCO System Saver 318 air compressor, published by ArvinMeritor and revised in August 2005. The document provides complete service and repair procedures, troubleshooting guidance, and replacement instructions for mechanics and workshop owners maintaining these air brake system components on Mack E-Tech and ASET engines.
Document details and specifications — Mack air compressor
| Brand | Meritor WABCO |
| Model coverage | System Saver 318 air compressor (non-through drive and through-drive versions) |
| System/Group | Air Brakes |
| Publication number | Maintenance Manual 31 |
| Year/Revision | Revised 08-05 (2005) |
| Pages | 14 |
| File size | 0.5 MB |
| Format | |
| Language | English |
Table of contents
- Section 1: Introduction — Application, Description, Operation, Maintenance Intervals
- Cylinder Head Visual Inspection
- Section 2: Troubleshooting — Compressor Troubleshooting Guide
- Section 3: Compressor Replacement — Removal, Installation, Testing, Air System Leakage Test
- Cylinder Head Removal and Installation procedures
Applies to these models
This Mack air compressor maintenance applies to the System Saver 318 compressor (18.7 cubic feet per minute displacement) used on Mack E-Tech and ASET engines in both non-through drive and through-drive configurations. The through-drive version is required to operate hydraulic power steering pumps. For additional technical support, visit Meritor WABCO official site.
Who needs this air compressor maintenance
Diesel mechanics, truck technicians, and workshop owners servicing Mack truck air brake systems need this air compressor maintenance. It covers unloader piston maintenance, governor operation, coolant and oil supply procedures, and complete troubleshooting for compressor cycling, leakage, and pressure loss conditions.
The full air compressor maintenance is available in the DiagTechPro manuals library. Free account registration is required to download this 14-page PDF document.
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Using this document effectively
Use this manual with the exact compressor model, vehicle identification, air system configuration, and publication revision shown on the truck. Record pressure behavior and the original symptom before disconnecting lines or replacing components. Follow the official safety instructions, depressurization steps, torque values, and inspection limits in the source publication.
Compare mounting details, fittings, governor connections, dryer plumbing, and service intervals with the installed Meritor WABCO system. If the equipment differs from the illustrations or identification data, obtain the matching Mack service publication rather than adapting a procedure for another configuration.
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