BRACKET
FIGURE
33.
OPTIONAL OIL BATH AIR CLEANER
interval
so
the operator can correctly clean the cup
before the dirt accumulates in the bottom to adepth of
1/2
inch,
or
the oil appears too heavy to spray
or
circulate properly. Use crankcase-grade oil. When
changing oil, inspect the wirescreen filtering element
and remove any accumulation
of
lint,.etc. The air
cleaner mounts remotely; the flexible hose must have
slack.
CARBURETOR
AIR
PRE-HEATER
(Op-
tional)
Heated air supplied to the air cleaner (Figure
34)
during cold weather prevents carburetor icing. The
air source is automatically selected by the Ver-
VERNATHERM
CONT'ROL
I
AIR
CLEANER
\
SHUTT
(UNDERS
PLENUM
TER
'FIGURE
34.
OPTIONAL CARBURETOR AIR PRE-HEATER
natherm (thermo-static element) which operates
a
shutter in the intake air stream. The shutter is fully
closed at
80"
F
(just touches bottom), is half open at
90°F,
and
is
fully open to ambient air at
100°F.
The flange of the hose adapter (where used) is
positioned inside the manifold heater. plenum, and
one sheet metal screw holds air outlet hose shield
(where used next to vertical exhaust). Check shutter
for binding. Mounting depth of Vernatherm adjusts
temperature control plunger to just touch shutter at
70"
F.
Grease points of contact.
Gaseous fuels (natural gas)
do
not
require pre-heated air.
29
Redistribution or publication of this document,
by any means, is strictly prohibited.
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