PIPER
SENECA
II
SERVICE
MANUAL
13-65. REASSEMBLY (30,000 BTU). (Refer to Figure 13-18.)
a.
If
removed during disassembly, secure the nipple (37) and elbow (34)
to
the fuel solenoid (22).
b. Insert the ventilating air motor
(13)
into the
motor
bracket assembly
(19);
slide the blower wheel
( 17) on
the
end
of
motor
shaft and rotate it until the set screw
is
aligned with the flat side
of
the
motor
shaft. Tighten
the
set screw just tight enough
to
hold
it
at
this time.
c.
Attach the capacitor and leads assembly ( 18)
to
the
motor
bracket ( 19) with the screw and lock
washer. Make sure a good electrical ground connection
is
made
at
this point.
d. Insert this assembly
into
the blower housing ( 12) and position
it
so the long screw
is
in alignment
with the gap on the inner ring
of
the
motor
bracket assembly ( 19). This
is
the
screw used
to
secure and
align the
motor
in the bracket.
e. Slide the flat washer and rubber washer
into
position between the legs
of
the
motor
bracket ( 19)
and blower housing ( 12).
f. Make sure all wires are routed and grommeted as they were prior
to
disassembly and install
the
two screws, flat washers, and new grommets
at
the two lower edges securing the
motor
bracket assembly
(19).
Then install the grommet, flat washer,
nut,
and screw in the remaining (upper) corner
of
the
motor
bracket assembly ( 19).
g.
Center the
motor
bracket
(19)
in the housing and tighten the screw
to
secure it. The
motor
(13)
should be positioned in
the
bracket ( 19)
to
locate
the
blower wheel ( 17) properly in the blower housing
( 12). The blower wheel should
be
positioned
so
it will rotate freely and just clear the contoured spill plate
in the blower housing. Tighten
the
Allen-head set screws and spin the blower wheel
by
hand for a clearance
check. Then apply appropriate voltage
to
run the
motor
as a final clearance check.
h. Attach the inlet adapter
(16)
to
the end
of
blower housing
(12)
with three screws and lock
washers.
i. Place a new rope gasket (31) in position
on
the exhaust outlet; spring the jacket assembly (5)
open
at
the seam and insert
the
combustion
tube
assembly
(7)
carefully
into
the
jacket. Exercise care
to
clear the pressure switch tube in the exhaust outlet and see
that
the rope gasket (31)
is
properly located.
Close
the
gap
on
the jacket assembly and install screws and lock washers
to
secure
it
at
the seam. (Two
leads ground under these screws. See notations made during disassembly.) Make sure
the
tongue and
channel
at
the seam are in good condition and a tight
fit
is
effected.
j. Install cable straps
at
locations
noted
during disassembly.
k. Remove
the
spray nozzle (21) from the polyethylene bag. Screw the nozzle
into
nozzle holder
and tighten
to
75-100 inch-pounds.
It
is very important
to
torque the nozzle
to
this value
as
incorrect
tightening could cause improper heater operation and
"drool."
CAUTION
The spray nozzle has a slight protrusion on the nozzle face.
If
this
area has been struck by any object which would make a
dent
or
destroy the original contour, the nozzle must be replaced.
It
cannot be disassembled for cleaning.
1.
Install the gasket (30) and combustion head (6) in
the
combustion tube (7) and secure with
the
screws and washers.
m. Insert the fitting on end
of
nozzle fuel tube through the opening in
jacket
(5) and attach the
nozzle holder
to
the combustion head assembly (6) with
the
two
screws and lock washers.
It
may be
necessary
to
place a slight bend in the shrouded fuel tube
to
permit alignment
of
screw holes.
Be
sure
to
use
a new gasket (28).
n. Using a new spark plug gasket, install the spark plug (32) and tighten to a torque
of
28
foot-pounds. Install the grommet (39) in the jacket around the spark plug.
Reissued: 10/11/79
HEATING AND VENTILATING
2K24
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