WABCO 1200 Plus MCP User Manual

6 Appendix III — Special Applications
44
Meritor WABCO Maintenance Manual 34 (Revised 03-16)
Meritor WABCO System Saver Series Single Cartridge Air Dryer Component Replacement
Guide
NOTE: Whenever an assembly is replaced due to seal damage from oil contamination, it is recommended that you find and correct the source
of the oil contamination and replace the desiccant cartridge.
Figure 6.10
Figure 6.10
BYPASS VALVE
ASSEMBLY
Bypass valve is used on
dryers with date codes
earlier than 0894.
1002189a
O-Ring
Do not grease
diaphragm.
1200 Series air dryers do
not use bypass valve.
HEATER ASSEMBLY
• Disconnect plug.
• Remove old assembly.
• Install replacement element and
thermostat.
— Install retainer and screw to secure.
• Install replacement O-ring and receptacle.
— Fasten in place with screws.
Refer to Section 3 for more
detailed instructions.
DESICCANT CARTRIDGE
• Remove old cartridge.
• Lube and install O-ring.
• Install replacement cartridge.
T
PRESSURE RELIEF VALVE
• Unscrew and remove
old valve.
• Screw replacement
valve into dryer or
Street-Tee fitting.
• Do not exceed
recommended torque.
Refer to Pressure Relief
Valve in Section 3.
REGENERATION
VALVE ASSEMBLY —
REGENERATION STYLE
DRYERS ONLY
• Remove old assembly and
diaphragm.
• Clean diaphragm lip groove.
• Install replacement
diaphragm and assembly.
PURGE VALVE ASSEMBLY
• Remove old assembly.
• Clean valve bore.
• Grease valve bore.
• Install replacement assembly.
*
E Series dryers use a different style turbo
cut-off valve (Refer to Parts Book PB-96134).
**
Spring not used with U Series dryers.
NOTE: If shims are included in the
replacement kit, install one above
and one below the spring.
OUTLET CHECK
VALVE ASSEMBLY
• Remove old
assembly.
• Clean valve bore.
• Install replacement
O-ring in bore.
Then, grease O-ring
and bore.
TURBO CUT-OFF
VALVE ASSEMBLY
*
• Remove snap ring.
• Use needle nose pliers
to remove the piston.
• Clean bore (if bore is
badly damaged,
replace the air dryer).
• Install replacement
assembly.
* *
1800
1200
SHIMS
(IF REQUIRED)

WABCO 1200 Plus MCP Specifications

General

Brand	WABCO
Model	1200 Plus MCP
Category	Other
Language	English