The safety screen used to cover
1
vents must be IN-inch
(6.35
mm)
mesh,
or
larger,
to
permit sufficient air flow and must
be commensurate
with
safefy standards for hazard-
ous
moving parts to avoid personal contact. Provide a
short canvas section between the engine air outlet
and the external duct or opening to absorb vibration.
If operation
in
cold weatheris likely, installing a shut-
ter
in
the air outlet is advisable. Cold weather can
cause overcooling if air flow is
not
regulafed.
SCROLL
BACKPLATE
mi@
FIGURE
2.
VACU-FLO
SCROLL
POSITIONS
EXHAUST
Usea length
offlexiblestainlesssteel
tubing between
the engine exhaust outlet and any rigid piping to
absorb engine vibration. Shield the
line
if
it
passes
through a combustible wall or partition. If turns are
necessary, use sweeping type (long radius) elbows.
Increase one pipe size (from manifold outlet size) for
each additional ten feet in length. Locate the outlet
away from the air intake.
CARBURETOR
AIR
INTAKE
Proper engine efficiency depends upon a supply of
fresh air to the carburetor. Under special conditions,
it may be necessary to move the air cleaner off the
engine, using a longer connection hoseas necessary.
For extremely dusty or dirty conditions, install a spe-
cial heavy duty air cleaner.
MOUNTING
There are several acceptable methods of mounting
the engine. Among factors to be considered are: loca-
tion, method of coupling the engine to the load, type
of foundation or support, etc. The engine should be
mounted on a level surface if possible. Maximum
operation angle is
15
degrees sideways,
30
degrees
frontto reartilt. Iftheengineistooperateatanangle,
be sure to re-mark the oil level indicator to compen-
sate for the tilt.
The type of installation can affect the life of the
engine, the cost of operation, and the frequency of
necessary service. Plan the installation carefully to
ensure the best performance.
Because
of
the great variety of uses and the many
variations of the engine, these installation instructions
are typical
or
general in nature. Use the installation
recommendation given as a general guide.
EXHAUST
SYSTEM
Make regular visual and audible inspections of the
exhaust system throughout the entire life of the
engine. Locate leaks in muffler and piping while the
engine is operating. Repair all leaks immediately after
they are detected for personnel safety.
Should a vacu-flo engine chronically overheat, the
most likely sources of the problem are:
1,
Air inlet is obstructed or too small to allow proper
2.
Air discharge opening is partially blocked by
3.
Recirculation of heated air into fresh air inlet.
Inhalation
of
exhaust
gases
can
7)
result in serious persona/ jnjuv
or
death. Inspect exhaust system audibly and visually
for leaks daily. Repair any leaks immediately.
ventilation.
external ducts or exhaust systems.
9
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