Storage; Final Setting; Acceleration Test - Craftsman 917.287210 Operator's Manual

21.0 hp 42" mower electric start 6 speed transaxle
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FINAL
SETTING
-
1.
Start engine
and allow to warm
for five
minutes.
Make final adjustments
with
engine
running
and shift!motion
control
lever in neutral
(N) position.
2.
Move throttle
control
lever to slow posi-
tion. With finger,
rotate and hold throttle
lever
against
idle speed
screw.
Turn
idle speed
screw
to attain
1750
RPM.
3.
While
still holding
throttle
lever against
idle speed
screw,
turn idle mixture
valve full travel clockwise
then coun-
terclockwise
until engine
runs rough.
Turn valve
to a point
midway
between
those
two positions.
Release
throttle
lever.
ACCELERATION
TEST
-
4.
Move throttle
control
lever from slow
to fast position.
If engine
hesitates
or
dies, turn idle mixture
valve
out
(coun-
terclockwise)
1/8 turn.
Repeat
test and
continue
to adjust,
if necessary,
until
engine
accelerates
smoothly.
High speed
stop is factory
adjusted.
Do
not adjust
- damage
may result.
IMPORTANT."
Never
tamper
with the
engine
governor,
which
is factory
set
for proper
engine
speed.
Overspeed-
ing the engine
above
the factory
high
speed
setting
can be dangerous.
If you
think the engine-governed
high speed
needs
adjusting,
contact
a Sears
or other
qualified
service
center,
which
has proper
equipment
and experience
to make
any
necessary
adjustments.
_ [hrv°t'e
'd'oeeS
Idle M_
_
With Limiter
Immediately
prepare your tractor for stor-
age at the end of the season or if the trac-
_i_ will not be used for 30 days or more.
WARNING:
Never store the tractor
with gasoline in the tank inside a building
where fumes may reach an open flame
or spark. Allow the engine to cool before
storing in any enclosure.
TRACTOR
When tractor is to be stored for a period
of time, clean it thoroughly,
remove all dirt,
grease, leaves, etc. Store in a clean, dry
area.
1. Clean entire tractor (See "CLEANING"
in the Maintenance
section of this
manual).
2. Inspect and replace belts, if necessary
(See belt replacement
instructions
in
the Service and Adjustments
section of
this manual).
3. Lubricate as shown in the Maintenance
section of this manual.
4.
Be sure that all nuts,
bolts and screws
are securely
fastened.
Inspect
moving
parts for damage,
breakage
and wear.
Replace
if necessary.
5.
Touch
up all rusted
or chipped
paint
surfaces;
sand
lightly
before
painting.
BATTERY
Fully charge
the battery
for storage.
,
After a period
of time in storage,
battery
may require
recharging.
• To help prevent
corrosion
and power
leakage
during
long periods
of storage,
battery
cables
should
be disconnected
and battery
cleaned
thoroughly
(see
"TO CLEAN
BATTERY
AND TER-
MINALS"
in the Maintenance
section
of
this manual).
,
After cleaning,
leave
cables
discon-
nected
and place
cables
where
they
cannot
come
in contact
with battery
terminals.
,
If battery
is removed
from tractor
for
storage,
do not store battery
directly
on
concrete
or damp
surfaces.
26

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