Contents
pg. pg.1 Section 1: Introduction
Overview
Other Publications Related to Meritor WABCO System
Saver Series Single Cartridge Air Dryers
Air Dryer Identification
2 How the Air Dryer Works
3 Air Dryer Cycle
7 Air Dryer Components
10 Dryer Identification
Description of Components
14
Section 2: Component Removal and
Installation
Component Replacement
Requirements
15 Component Removal and Installation
Desiccant Cartridge
16 Outlet Check Valve Assembly
Heater Assembly
17 Turbo Cut-Off Valve Assembly
18 System Saver 1200 Plus Governor
Regeneration Valve Assembly
19 Purge Valve Assembly
20 Pressure-Controlled Check Valve (PCCV)
21 Bypass Valve
22 Pressure Relief Valve
Purge Silencer (Muffler)
23 Air Dryer Assembly
24
Section 3: Troubleshooting and Testing
Maintenance
25 Maintenance Tips
26 Troubleshooting
31 Tests
Heater Resistance
Electric Power to Dryer
Leak Test
Air Pressure Checks
Operational Test for System Saver Series Air Dryers —
Regeneration and Purge Style
32 Pressure-Controlled Check Valve Test — Regeneration
Style Only
34
Section 4: Appendix I — Glossary
Definitions
Basic Air System/Air Dryer Terms
35
Section 5: Appendix II — Application Info
Requirements
Operating Environment
36 System Saver Series Installation Criteria
37
Section 6: Appendix III — Special
Applications
Description
Holset E-Type Compressor Systems
38 ECON Valve
40 Alcohol Evaporator
41 Combo Tank Installation for Regeneration-Style Air Dryers
42 Combo Tank Installation for Regeneration-Style Air Dryers
43 Meritor WABCO System Saver Series Single Cartridge Air
Dryer Component Replacement Guide — Dedicated
Purge
44 Meritor WABCO System Saver Series Single Cartridge Air
Dryer Component Replacement Guide
45
Section 7: Appendix IV — Exploded View of
System Saver 1200 Plus Series Air Dryer
46 Section 8: Appendix V — Temporary Air
Dryer Bypass
Bypass Procedure
47
Section 9: Appendix VI — Exploded View of
System Saver 1200 Plus Series with Multi
Circuit Protection
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