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I
IMPORTANT
STARTING
AND
OPERATION
OF NEW ENGINES
Caref
ul breaking in of a
new engine
will
greatly
increase
its
life and result
in trouble-free
operation.
A
factory
test
is not sufficient to
establish
the
polished bearing surfac(!S,
whicb
are
so
necessary to
the
proper perform·
ance and long
life
of an
eng
ine.
Neither is
there a quick way to force the
establishment of good bearing surfaces.
These can
only
be
obtained
by
running
a
new engine
carefully
an
d
under reduced speeds and
loads for
a short
time,
as
follows
:
First, be sure
the
engine is
filled
to
the proper
level with a
good quality
of engine
oil,
sec
"Grade
of
Oil"
chart.
Before a
new
engine
is
put
to
its regular work,
the
engine should
be
oper-
ated
at
low
jdle speed
(1000
to
1200
R.P.M.) for
one half hour,
without
load.
The
R.P.M. should
then
be
increased
to
engine
operating speed,
still
without load,
for an
additional
two
hours.
If at all possible,
operate the engine
at
light loads for
a
period
totaling
about eight hours,
before
maximum load
is
applied.
This will greatly in-
crease
engine
life.
The
various bearing surfaces
in a
new engine
have not been glazed, as they
will
be
with continued
operation,
and it
is
in
this period of
"running
in,"
that special care
must
be exercised,
otherwise
the
highly
desired glaze will
never
be
obtained. A new
bearing
surface that
has
once
been damaged by
carelessness
will
be
ruined forever.
THEREFORE
READ INSTRUCTIONS
CAREFULLY
A
copy
of
this
manual
is
sene
out
with each
engine.
All
poinrs of opera-
tion and maintenance
have
been covered as carefully
as possible but
if
fu~;tber
informacion is
requi
red, inquiries sent
to the factory
will
receive
p rompt a.ttencioo.
When
writing the
facLOry
AL\"qAYS
GIVE 'tHE
MODEL AND SERIAL
NUMBER
of engine r
eferted
to.
Extra copies
of
this manual
are
$1.00
each.
WISCONSIN MOTOR
CORPORATION
MILWAUKEE
46,
WISCONSIN
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