'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
U
U-10. FRESH AIR HEATER AND
DEFROSTER
Refer to Fig. U-4.
Air
circulation of the
heater
and
defroster
unit
is
accomplished
by the use of a
12-volt,
two-speed
fan
motor.
Outside
air may be drawn
through
the
vehicle
fresh air
intake
shroud
into
the fan and
blown
out
across
the
heater
core
where
it is
heated
by the
hot circulating
coolant
from the
engine.
The
heated
air
then
enters
the transition
duct.
From the transi
tion
duct
the
heated
air
passes
into
the
heat
distri
butor
where
it is
distributed
to the
defroster
nozzle
and/or
floor
diffuser.
The
heater
and
defroster
controls
are
mounted
in the
control
panel
on the
instrument
panel. A
three-position
switch
mounted
in the
control
panel
operates
the
heater
fan.
FIG.
U-3—FRONT
BUMPER
WEIGHT
FIG.
U-4-
-FRESH
AIR
HEATER
AND
DEFROSTER
CJ-5
AND CJ-6 _ 1— Heater Assembly
2— Hose Clamp
3— Defroster
Nozzle
4—
Air
Duct Screen 5—
Air
Duct and Heater Collar
6—
Air
Duct Intake Tube 7— Hose Clamp
8— Straight Hot Water Hose
9— Heater Tube Elbow
10—Heater Hose Support Bracket
I
j—Defroster Hose
12— Hot Water Hose
13— Heater Nipple
14— Reducing Bushing
15— Inverted Flared Tube Nut
16— Inverted Flared Tube Connector
17— Heater Vacuum to Engine Tube
18— Heater Control Tube
19—
Clip
20— Grommet
21— Defroster Bushing
22— Heat Distributor Assembly
23— Heater Control Tube
24— Heater Control Tube
25— Heater Control Assembly
26—
Fuse
Holder Assembly
27— Bowden Wire (Control Panel to Heater)
28— Blower and Air Inlet Assembly 359
