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SECTION 2

2-i

INDEX

Air Dryers Page

All Makes Air Dryers and Components Air Dryer Quick Reference .......................................................................2-14 AD-2 Series..............................................................................................2-15 AD-4 Series..............................................................................................2-18 AD-9 Series..............................................................................................2-22 AD-IP Series ............................................................................................2-26 AD-IS Series ............................................................................................2-31 AD-SP Series ...........................................................................................2-28

Meritor WABCO Single Air Dryers and Components Air Dryers .................................................................................................2-1 Bypass Valve Kit ......................................................................................2-4 Desiccant Cartridge..................................................................................2-2 Diaphragm................................................................................................2-3 Econ Valve ...............................................................................................2-5 Heater Power Harness.............................................................................2-5 Heater Repair Kits - Single ......................................................................2-2 Outlet Check Valve Kit .............................................................................2-4 Pressure Relief Valve...............................................................................2-5 Pressure-Controlled Check Valve............................................................2-5 Purge Silencer..........................................................................................2-5 Purge Valve Kit ........................................................................................2-4 Regeneration Valve Kits...........................................................................2-3 Turbo Cut-Off Valve Kits ..........................................................................2-3

Meritor WABCO System Saver Twin Air Dryers and Components Back Pressure Control Valve ...................................................................2-13 Charging Valve Kit ...................................................................................2-11 Check Valve Assembly ............................................................................2-9 Compressor Kit ........................................................................................2-8 Desiccant Cartridge..................................................................................2-7 Dryer Replacements ................................................................................2-7 Econ Valve ...............................................................................................2-10 Heater Repair Kits - Twin.........................................................................2-8 Meritor WABCO System Saver Twin Air Dryer Exploded View...............2-6 Orifice Kits................................................................................................2-9 Outlet Check Valve Kit .............................................................................2-12 Piston Components..................................................................................2-10 Pressure Relief Valve...............................................................................2-11 Purge Silencer..........................................................................................2-13 Purge Valve Kit ........................................................................................2-12 Replacement Kits .....................................................................................2-7 Solenoid & Armature Kits .........................................................................2-12 Solenoid Valve .........................................................................................2-10 Wiring Harnesses.....................................................................................2-8

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Replacement Kits contain: Air Dryer Base, Cartridge, Label, Heater Power Harness, Mounting Hardware and Pressure Controlled Check Valve. Alphabetical designations of Air Dryers: P - External purge tank is used for desiccant regernation U - Discharge line is used for unloading compressor E - Holset style compressor function. Dryer has external econ line UP - Discharge line for unloading compressor and and external purge tank

2-1

MERITOR WABCO SYSTEM SAVER 1200 & 1800 REPLACEMENTS REPL. KIT PART NO.

SERVICE EXCH. PART NO.

CORE NO.

CORE GROUP

PORT SIZES/ DETAILS

DESCRIPTION OF AIR DRYER AIR DRYER CARTRIDGE

R955205 SRWABK118NX 12-volt System Saver 1000/1200. Production number 432 413 001 0 or 432 413 003 0.

SRWABK118

R955206 SRWABK119NX 24-volt System Saver 1200. Prod number 432 413 002 0 or 432 413 004 0.

SRWABK119

R955207 S432 413 010 7

XC3200 AD001

12-volt System Saver 1200E. Production number 432 413 006 0.

S432 413 010 0

R955208 24-volt System Saver 1200E. Production number 432 413 009 0.

S432 413 011 0

R955210 S432 413 017 7 XC3202 AD001 12-volt System Saver 1200U. Production number 432 413 007 0.

S432 413 017 0

R955211 24-volt System Saver 1200U. Production number 432 413 021 0.

S432 413 020 0

Not Available

S432 421 015 7 12-volt System Saver 1200UP. Production number 432 421 011 0.

S432 421 015 0

R950011

R955079 S432 421 048 7 Coalescing Version of 12-volt System Saver 1200P.

S432 421 048 0 R950068

R955300 S432 413 024 7 12-volt System Saver 1200P. Production number 432 421 009 0.

S432 413 024 0

R955315 S432 413 025 7 24-volt System Saver 1200P. Production number 432 421 010 0.

S432 413 025 0

R950011

R955082 S432 421 033 7

XC3202 AD001

Coalescing Version of 12-volt System Saver 1200UP.

S432 421 033 0 R950068

R955301 12-volt System Saver 1800. Production number 432 413 030 0.

S432 413 039 0

R955302 24-volt System Saver 1800. Production number 432 413 031 0.

S432 413 041 0


S432 413 043 0


S432 413 045 0

R955311 12-volt System Saver 1800UP. Production number 432 421 019 0.

S432 413 059 0

R955312 24-volt System Saver 1800UP. Production number 432 421 020 0.

S432 413 061 0

R955313 12-volt System Saver 1800P. Production number 432 421 021 0.

S432 413 063 0

R955314

24-volt System Saver 1800P. Production number 432 421 022 0.

S432 413 065 0

R950048

R955080 S432 421 052 7 Coalescing Version of 12-volt System Saver 1800UP.

S432 421 052 0

R955081 S432 421 054 7

XC3208 AD001

Port 1 (supply): 50"-14 NPTF Port 21 (delivery): .50"-14 NPTF Port 4 (control): .25"-18 NPTF Port 22 (purge tank): .25"-18 NPTF

Coalescing Version of 12-volt System Saver 1800P.

S432 421 054 0

R950069

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2-2

DESICCANT CARTRIDGES PART NUMBER APPLICATION INFORMATION

R950011 For use on System Saver 1000 and 1200 Series and TWIN air dryers.

R950048 For use on System Saver 1800 Series air dryers. Can be retrofitted to an existing SS1200 air dryer to increase drying capacity.

R950068 Coalescing version of System Saver 1200 and TWIN air dryer and other spin-on dryer applications. Improved oil separation verses conventional cartridges. Requires more frequent service intervals.

R950069 Coalescing version of System Saver 1800 air dryer and other spin-on dryer applications. Improved oil separation verses conventional cartridges. Requires more frequent service intervals.

SS1200/SS1800 AIR DRYER REPAIR KITS R950015 HEATER REPAIR KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 2 Mounting Screw 2 1 Wiring Connector 3 1 O-Ring 4 1 Wire - Heater 5 1 Heater 6 1 Thermostat 7 1 Plastic Retainer

8 1 Retainer Screw

12-volt heater kit for dryers with date code 0994 and later. For all System Saver Series Air Dryers.

R950016 HEATER REPAIR KIT


8 1 Retainer Screw

For all 24-volt System Saver Series Air Dryers.

2-3

SS1200/SS1800 AIR DRYER REPAIR KITS R950012 REGENERATION VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Diaphragm 2 1 Cap 3 1 Compression Spring 4 1 Regeneration valve

housing with o-ring and filter

5 4 Capscrew

6 1 Filter

Old style regeneration valve housing is no longer in production. Replaced by new valve housing with o-ring and filter. For dryers with date codes earlier than 2295. For SS1200 and SS1800 models.

R950044 REGENERATION VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Diaphragm 2 1 Cap 3 1 Compression Spring 4 1 Regeneration valve

housing with o-ring and filter

5 4 Capscrew

6 1 Filter

Old style regeneration valve housing is no longer in production. Replaced by new valve housing with o-ring and filter. For dryers with date codes 2295 and later. For use with all System Saver Series Air Dryers.

DIAPHRAGM

PART NUMBER APPLICATION INFORMATION

R950045 For use with all System Saver series air dryers.

R950013 TURBO CUT-OFF VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Plug 2 1 Retainer Ring 3 1 Cover 4 1 O-Ring 5 1 Compression Spring

(Not used in SS1200U Air Dryers

6 1 Piston (valve) 7 1 Lip Seal

8 1 Grease Pak

If you are replacing the turbo cut-off valve on a System Saver 1200E air dryer, please contact Meritor WABCO at 800-535-5560 for part number information.

R950047 TURBO CUT-OFF VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Plug 2 1 Retainer Ring 3 1 Cover 4 1 O-Ring 5 1 Compression Spring

(Not used in SS1200U Air Dryers

6 1 Piston (valve) 7 1 Lip Seal 8 1 Grease Pak

For use with 1200E air dryer with Econ Valve Kit.

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2-4

SS1200/SS1800 AIR DRYER REPAIR KITS R950014 PURGE VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Washer 3 1 Piston O-Ring 4 1 Piston Seat 5 1 Piston 6 1 Shim 7 1 Compression Spring 8 1 O-Ring 9 1 Valve Head 10 1 Retainer Ring

11 1 Grease Pak

Note: Install washer with lip facing piston seat. Note: Shims may not be included in this kit. If not included, they are not required. If included, they must be installed above and below the spring. Kit is for use on all single cartridge dryers with U.S. (NPTF) ports.

R955047 PURGE VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Piston Assembly 3 1 Spring 4 1 O-Ring 5 1 Shim 6 1 Valve Body 7 1 Retainer Ring

8 1 Grease Pak

Note: Shim (Item 5) may not be included with this kit. If not included, it is not required. If included, install below compression spring. For use with all System Saver Series Air Dryers.

R950017 OUTLET CHECK VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 3 1 Compression Spring 4 1 Washer 5 1 Retainer Ring

6 1 Grease Pak

Kit is for use on SS1200 and SS1800 air dryers with U.S. (NPTF) ports.

R950018 BYPASS VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 3 1 Compression Spring 4 1 O-Ring 5 1 Cover 6 1 Retainer Ring

7 1 Grease Pak

Use on dryers with date code 0894 or earlier. Check date code on dryer before ordering this kit. The date code appears on the i.d. tag on the face of the dryer. For use on SS1200 and SS1800 Models.

2-5

SS1200/SS1800 AIR DRYER REPAIR KITS SRWABK085 PRESSURE RELIEF VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Pressure Relief Valve

2 1 Street Tee Fitting Use on all System Saver Series dryers without integral relief valve.

PRESSURE RELIEF VALVE

PART NUMBER THREAD DIMENSIONS APPLICATION INFORMATION

S2206-D-1226 Port: 3/8"-18 NPTF Valve sold separately or as part of kit SRWABK085.

R950046 ECON VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Metal Washer 2 1 Banjo Fitting 3 1 O-Ring 4 1 Metal Washer 5 1 Econ Valve 6 1 Nut 7 1 Compression Spring 8 1 Tube

9 1 Grease Pak

Use on System Saver Series 1200E single cartridge air dryers.

ECON VALVE


R955037 For use with Holset E-Type compressor on System Saver 1000 and 1200 air dryers. Not required on System Saver 1200E air dryers.

PRESSURE-CONTROLLED CHECK VALVE (PC CHECK VALVE)

PART NUMBER LENGTH PORT THREAD APPLICATION INFORMATION

S434 100 310 0 3-1/4" .50"-14 NPTF Acts as a one-way check valve when pressue drops below 90 psi.

PURGE SILENCER


R950035 Optional part for all System Saver Series air dryers. Snaps to bottom of air dryer purge valve housing. Reduces noise level of air dryer purge.

HEATER POWER HARNESS

PART NUMBER GAGE LENGTH APPLICATION INFORMATION

SRWABC002 14-gage wire 12" Metri-Pack plug provides electrical connection to air dryer heating unit.

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1 Replacement Kit includes TWIN Air Dryer, Power Harness, Capscrews (Qty. 3) (1-3/8" Long), Lockwashers (Qty. 3), Standard TWIN Harness and TP-94104, TWIN Installation Guide (Not Shown).

2-7

MERITOR WABCO SYSTEM SAVER TWIN AIR DRYER REPLACEMENTS

REPLACEMENT KIT PART NO. (1)

SERVICE EXCHANGE PART NO.

CORE NO.

CORE GROUP

COMPRESSOR RATING

ORIFICE SIZE

DRYER VOLTAGE THREAD SIZES

AIR DRYER PART NO. CARTRIDGE

R955065 R955065NX 12-volt S432 431 016 0 R955066 R955066NX

XC3206 Less than 21 CFM 0.8mm 24-volt S432 431 017 0

R955010 R955010NX XC3205

AD001

12-volt S432 431 012 0 R955029

21 - 35 CFM 1.0mm 24-volt S432 431 014 0

R950011

R955083 S432 431 021 0 R955084 S432 431 028 0

R950068

R955028

12-volt

S432 431 013 0 R955030

Greater than 35 CFM

1.3mm

24-volt

Supply Port: 1/2"-14 NPTF; Delivery Port: 1/2"-14 NPTF; Control Port: 1/4"-18 NPTF; Mounting Holes: (3) 1/2"-13 UNC-2B

S432 431 015 0 R950011

AIR DRYER PART NO.

SERVICE EXCHANGE PART NO.

CORE NO.

CORE GROUP

COMPRESSOR RATING

ORIFICE SIZE

DRYER VOLTAGE THREAD SIZES

KIT PART NO. COMMENTS

S432 431 016 0 S432 431 016 7 12-volt R955065 S432 431 017 0 S432 431 017 7

XC3206 Less than 21 CFM 0.8 mm 24-volt R955066

S432 431 012 0 S432 431 012 7 XC3205

AD001

12-volt R955010 S432 431 014 0

21 - 35 CFM 1.0 mm 24-volt R955029

S432 431 013 0 12-volt R955028 S432 431 015 0

Greater than 35 CFM

1.3 mm 24-volt

Supply Port: 1/2"-14 NPTF; Delivery Port: 1/2"-14 NPTF; Control Port: 1/4"-18 NPTF; Mounting Holes: (3) 1/2"-13 UNC-2B

R955030

Harness not included

DESICCANT CARTRIDGE


R950011 For use on System Saver 1000 and 1200 Series and TWIN air dryers.

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2-8

MERITOR WABCO SYSTEM SAVER TWIN AIR DRYER REPLACEMENTS DESICCANT CARTRIDGE


R950068 Coalescing version of System Saver 1200 and TWIN air dryer and other spin-on dryer applications. Improved oil separation verses conventional cartridges. Requires more frequent service intervals.

SYSTEM SAVER TWIN AIR DRYER REPAIR KITS WIRING HARNESSES


SRWABK072 3-Circuit wiring harness for heater, solenoid valve, and timer/solenoid. Use with Holset E-Type compressor systems only. For System Saver TWIN Models.

R950041 2-Circuit wiring harness for heater and timer/solenoid. Use with standard (non E-Type) compressor systems. For System Saver TWIN Models.

R955035 HOLSET E-TYPE COMPRESSOR KIT

ITEM QTY PART NUMBER DESCRIPTION APPLICATION INFORMATION 1 1 SRWABK072 Holeset E-Type Wiring Harness 2 1 R955037 Econ Valve 3 1 SRWABC015 Check Valve Assembly

4 1 R955036 Solenoid Valve

Use with Holset E-Type compressor systems. For all System Saver Series Air Dryers.

R950015 HEATER REPAIR KIT


8 1 Retainer Screw

12-volt heater kit for dryers with date code 0994 and later. For all System Saver Series Air Dryers.

2-9

SYSTEM SAVER TWIN AIR DRYER REPAIR KITS R950016 HEATER REPAIR KIT


8 1 Retainer Screw

For all 24-volt System Saver Series Air Dryers.

R955067 ORIFICE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Perforated Washer 2 1 Spring 3 1 Check Valve 4 1 O-Ring 5 1 O-Ring 6 1 Orifice 7 1 Snap Ring 8 1 O-Ring

9 1 Grease Pak

0.8 mm Orifice. For System Saver TWIN Models.

R955050 ORIFICE KIT


9 1 Grease Pak


R955049 ORIFICE KIT


9 1 Grease Pak


CHECK VALVE ASSEMBLY


SRWABC015 Assembly consists of check valve and pipe nipple. Use with Holset E-Type compressor systems. For System Saver TWIN Models.

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2-10

SYSTEM SAVER TWIN AIR DRYER REPAIR KITS ECON VALVE


R955037 Use with Holset E-Type compressor. May also be used as turbo cut-off or isolation valve. For System Saver TWIN Models.

SOLENOID VALVE


R955036 Use with Holset E-Type compressor. For System Saver TWIN Models.

R955051 LEFT PISTON COVER KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Cover

2 4 Mounting Bolt Does not include O-Rings which are part of the Seals and Springs Kit, Part R955041. For System Saver TWIN Models.

R955041 SEAL AND SPRING KIT - LEFT PISTON

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 O-Ring 3 1 Snap Ring 4 1 O-Ring 5 1 Snap Ring 6 1 O-Ring 7 1 Spring 8 2 O-Ring 9 1 O-Ring

10 1 Grease Pak

For System Saver TWIN Models.

R955042 PISTON KIT - LEFT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Piston 2 1 Spool 3 1 Lip Seal

4 1 Grease Pak


2-11

SYSTEM SAVER TWIN AIR DRYER REPAIR KITS RIGHT PISTON COVER

PART NUMBER DESCRIPTION APPLICATION INFORMATION

R955054 Right Piston Cover Kit - Solenoid Cover

Use with 12- or 14-volt solenoid and armature assy. Mounting hardware for cover included in Solenoid and Armature Kit (R955058 or R955045). For System Saver TWIN Models.

R955043 SEAL AND SPRING KIT - RIGHT PISTON

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Spring 3 1 Snap Ring 4 1 O-Ring 5 1 Snap Ring 6 1 O-Ring 7 2 O-Ring 8 1 Grease Pak


R955044 PISTON KIT - RIGHT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Piston 2 1 Lip Seal 3 1 Spool

4 1 Grease Pak


SRWABK085 PRESSURE RELIEF VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Pressure Relief Valve

2 1 Street Tee Fitting Use on all System Saver Series dryers without integral relief valve.

PRESSURE RELIEF VALVE

PART NUMBER THREAD DIMENSIONS APPLICATION INFORMATION

S2206-D-1226 Port: 3/8"-18 NPTF Valve sold separately or as part of kit SRWABK085.

R955053 CHARGING VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Piston 2 1 Spring 3 1 Washer 4 1 O-Ring 5 1 Nut (Special) 6 1 Plug

7 1 Grease Pak

Charging Valve Kit for System Saver TWIN Models.

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SYSTEM SAVER TWIN AIR DRYER REPAIR KITS R955048 OUTLET CHECK VALVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Check Valve 3 1 Conical Spring 4 1 Perforated Washer 5 1 Snap Ring

6 1 Grease Pak

Outlet Check Valve Kit for System Saver TWIN Models.


ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Washer 3 1 Piston O-Ring 4 1 Piston Seat 5 1 Piston 6 1 Shim 7 1 Compression Spring 8 1 O-Ring 9 1 Valve Head 10 1 Retainer Ring

11 1 Grease Pak

Note: Install washer with lip facing piston seat. Note: Shims may not be included in this kit. If not included, they are not required. If included, they must be installed above and below the spring. Kit is for use on all single cartridge dryers with U.S. (NPTF) ports.


ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 O-Ring 2 1 Piston Assembly 3 1 Spring 4 1 O-Ring 5 1 Shim 6 1 Valve Body 7 1 Retainer Ring

8 1 Grease Pak

Note: Shim (Item 5) may not be included with this kit. If not included, it is not required. If included, install below compression spring. For use with all System Saver Series Air Dryers.

R955046 SOLENOID HARDWARE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Armature & Spring Assy. 2 1 O-Ring 3 1 Nut 4 1 Mounting Plate 5 1 O-Ring 6 1 Breather 7 1 O-Ring 8 4 Solenoid Cover Mtg Bolt

9 1 Grease Pak

System Saver TWIN Models hardware kit for Solenoid

R955058 12 VOLT SOLENOID AND MOUNTING SLEEVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Solenoid Sleeve 2 1 Solenoid

3 1 Grease Pak

Solenoid and Mounting Sleeve Kit for 12-Volt System Saver TWIN Models.

2-13

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SYSTEM SAVER TWIN AIR DRYER REPAIR KITS R955045 24 VOLT SOLENOID AND MOUNTING SLEEVE KIT

ITEM QTY DESCRIPTION APPLICATION INFORMATION 1 1 Solenoid Sleeve 2 1 Solenoid

3 1 Grease Pak

Solenoid and Mounting Sleeve Kit for 24-Volt System Saver TWIN Models.

BACK PRESSURE CONTROL VALVE


R955039 Maintains adequate pressure at outlet of dryer to ensure proper dryer operation in high air usage appl. such as: Bulk Unloading Applications and Central Tire Inflation (CTI) Systems. For System Saver TWIN Models.

PURGE SILENCER


R950035 Optional part for all System Saver Series air dryers. Snaps to bottom of air dryer purge valve housing. Reduces noise level of air dryer purge.

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