MM-34
Revised 11-02
Page 23
Purge Silencer (Muffler)
NOTE:
This is an optional part designed to reduce
dryer purge noise level.
1.
Remove retainer ring. Remove old silencer
from purge valve head.
Do not damage
purge
valve head.
2.
Clean purge valve head.
3.
Install replacement silencer firmly onto purge
valve head until fully seated. Secure with
retainer ring.
Figure 3.20
.
Air Dryer Assembly
NOTE:
This procedure is for removing and
replacing a unit. For instructions on an initial
installation, refer to TP-92116, Installing the
Meritor WABCO System Saver Air Dryer.
1.
Drain all pressure from the air system.
Disconnect all air lines.
Use markers to label the lines for proper
reinstallation.
2.
Disconnect the heater electrical plug from the
heater receptacle.
3.
Remove the three mounting bolts. Remove the
air dryer from its mounting location.
Figure 3.21
.
4.
Attach the new unit to the frame or mounting
bracket with new mounting capscrews and
washers. Tighten the capscrews to 22 to
30 lb-ft (30-40 N•m).
Figure 3.22
.
5.
Connect heater electrical plug to heater
receptacle.
6.
Reconnect all system air lines.
7.
Test the installation for proper operation.
(Refer to Testing the Meritor WABCO System
Saver Series Air Dryer which follows.)
Figure 3.20
1002183a
PURGE
VALVE
HEAD
SILENCER
Figure 3.21
Figure 3.22
1002184b
T
1002185b
