MCi Crusader II 1989 Maintenance Manual page 175

Date
1-1-89
4-45
Page•.----
MC-9 MAINTENANCE MANUAL
REMOVAL
1. Make sure the coach is safely parked. Block the
wheels it necessary.
2.
Vent the air system completely, being sure that the
lines leading into and out of the air dryer are at atmospheric
pressure.
NOTE: Observe basic safety rulH
10
leaking air springs
will
not present a
safety hazard.
3. Remove the metal Sh(OUd protecting the air dryer.
AIR DRYER
HOUSING
DESICCANT - - - 1 - - - l - - - -
CARTRIDGE
CONICAL
WASHER
END COVER
HEX HEAD
SCREW
PURGE
VALVE
4.
Identify and disconnect the three air lines from the end
cover and note the position of the end cover ports relative to
the coach.
5. Pull the boot from the thermostat and heater cover and
slide it onto the wire to expose the connection. Remove the
nut and disconnect the electrical wire from the thermostat
terminal.
6. Refer to figures 4-61 · and 4-62. Loosen the two
s116 x 4½"
hex bolts securing the mounting straps on the
back side of the dryer. Disengage the mounting bracket
hook from_ the end cover.
CHECK
VALVE
PURGE
ORIFICE
COVER
PURGE
VOLUME
DESICCANT
PERFORATED
PLATE
SEALING RING
SUPPLY PORT
EXHAUST COVER
Figure 4-61. AD-4 Air Dryer Cross Section.
-