Shindaiwa 488EMC, Owner'S/Operator'S Manual

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8
3. Refer to following chart for
examples of 50:1 fuel to oil mix
quantities.
Mixing Fuel/Filling With Fuel
WARNING!
Minimize the risk of fire burns and
personal injury!
IMPORTANT !
Shindaiwa high-performance 2-cycle
engines are designed to operate on a
50:1 mixture of unleaded gasoline and 2-
cycle engine oil. Using a fuel mixture less
than 50:1 ratio (such as 80:1 or 100:1)
can cause catastrophic engine failure!
■
STOP engine before refueling.
■
ALWAYS allow the engine to cool
before refueling!
■
ALWAYS open the fuel cap slowly
to allow any pressure buildup in
the tank to release fuel vapor
slowly.
■
Wipe all spilled fuel and move the
engine at least 10 feet (3 meters)
from the fueling point and source
before restarting!
■
NEVER start or operate this
unit if there is a fuel leak.
■
NEVER start or operate this
unit if the carburetor, fuel lines,
fuel tank and/or fuel tank cap are
damaged.
■
NEVER smoke or light any fires
near the engine or fuel source!
■
NEVER place any flammable
material near the engine muffler!
■
NEVER operate the engine without
the muffler and spark arrester in
good working condition.
CAUTION!
䡵
Some types of gasoline contain
alcohol. Never use any type of
gasoline containing more than
10% alcohol by volume! More
than 10% alcohol by volume may
affect the lubricating qualities of 2-
cycle engine oils reducing engine
life and/or causing engine failure.
䡵
Generic engine oil and marine
engine oil may not be intended for
use in high-performance 2-cycle
engines and should never be
used in Shindaiwa engines.
Engine oils not intended for use
high-performance air-cooled 2-
cycle engines can cause exces-
sive carbon deposits, reduce
engine life and/or cause engine
failure.
1. Use only fresh, clean unleaded
gasoline with a pump octane
rating of 87 or higher.
2. Mix fuel with a 2-cycle engine oil
designed for use in high-perfor-
mance 2-cycle air-cooled engines.
N O T E N O T E N O T E N O T E N O T E :
Shindaiwa offers two performance
levels of 2-cycle air-cooled engine oils,
Shindaiwa Premium 2-Cycle Engine Oil
and Shindaiwa ONE High Performance
2-Cycle Engine Oil. Shindaiwa Premium
2-Cycle Engine Oil is designed to meet
the lubrication demands of most 2-cycle
air-cooled engines. Shindaiwa ONE High
Performance 2-Cycle Engine Oil is
recommended when superior lubrication
is needed to help protect engines used in
severe operating conditions. Shindaiwa
ONE also contains a fuel stabilizer to
help maintain fuel quality when fuel is
stored longer than 30 days.
Oil Requirements
䡵
When available, use Shindaiwa
Premium bar & chain oil.
䡵
When Shindaiwa oil is not avail-
able, use a premium 30-weight oil
specifically blended for bar &
chain lubrication.
䡵
For cold weather operation, bar oil
may be thinned by mixing with
clean kerosene at a ratio of 1:1.
Filling the Oil Reservoir
䡵
Place the saw on its side (clutch
cover down), and wipe any chips
or debris from around the oil cap.
䡵
Remove the oil cap at the front of
the saw.
䡵
Fill the oil reservoir with bar &
chain oil, and replace the cap.
䡵
Wipe spilled oil from handles and
controls before starting the saw.
Bar Oil/Filling With Oil
CAUTION!
Proper lubrication is critical to the
performance and service life of your
saw's oil pump, guide bar, and saw
chain! Always use a high quality
lubricating oil designed for saw chain
lubrication! Never use dirty or
reclaimed oil!
Oil Pump Adjustment
Guide bar and saw chain lubrication
is automatically provided by an
adjustable-rate oil pump designed to
operate whenever the clutch drum
rotates. A temporary increase in oil
flow rate is often desirable when
cutting hardwoods or large-diameter
softwoods, and can be provided as
follows:
1. Stop the engine and verify that the
engine stop switch is in the "OFF"
position.
2. Place the saw on its side, with the
clutch cover facing up.
3. Use a screwdriver to push down
and turn the oil flow rate adjust-
ment screw.
䡵
Clockwise to decrease bar & chain
lubrication.
䡵
Counter-clockwise to increase bar
& chain lubrication.
Counter-Clockwise
to Increase Oil
Flow
Gasoline 2-cycle oil
U.S. Gal. U.S. fl. oz.
1 gal. ................ 2.6 oz.
2 gal. ................. 5.2 oz.
2.5 gal. .............. 6.4 oz.
5 gal. ................. 12.8 oz.
Gasoline 2-Cycle Oil
liters milliliters
2.5 l ................... 50 ml
5 l ...................... 100 ml
10 l .................... 200 ml
20 l .................... 400 ml
4. Place the saw on a hard surface
with the fuel cap up and wipe any
chips or debris from around the
fuel cap.
5. Remove the fuel cap and fill the
tank with clean, fresh 2-cycle fuel
mix. Avoid overfilling and fuel
spillage.
6. Wipe any spilled fuel and move the
saw at least 10 feet (3 meters)
from the fueling point before
starting the engine.
17
40/50 Hour Maintenance
1. Replace the spark plug with a NGK
BPMR7A (or equivalent), gapped to
0.024" (0.6mm).
2. Extract the fuel filter from inside the
fuel tank, and then remove and
replace the filter element. Before
replacing the filter, inspect the
condition of the fuel line. If damage
or deterioration are noted, the saw
must be removed from service until
it can be inspected by a Shindaiwa-
trained service technician.
3. Extract the oil filter from inside the
oil tank, and then wash the filter
element in an approved solvent. If
damage or deterioration are noted
on the oil suction line, the saw must
be removed from service until it can
be inspected by a Shindaiwa-trained
service technician.
Fuel Line
Fuel
Filter
Spark Arrester Maintenance
䡵
Thoroughly clean the saw exterior.
Remove all chips and other debris
from the cylinder fins and cooling
passages.
䡵
Drain the fuel tank, and then clear
the carburetor and lines by run-
ning the saw until it stops from
lack of fuel.
Hard starting or a gradual loss of
performance can be caused by
carbon deposits lodged in the
muffler's spark arrester screen. For
maximum performance, the arrester
screen should be periodically re-
moved and cleaned with a small wire
brush.
CAUTION!
Never store the saw with any fuel
remaining in the tank, fuel lines, or
carburetor! Your Shindaiwa warranty
does not include coverage for damage
caused by "stale" or contaminated
fuels!
䡵
Drain any remaining bar oil from
the oil reservoir.
䡵
Remove the spark plug, and then
pour 1/4-oz of 2-cycle engine oil
into the cylinder through the
spark plug hole. Before reinstall-
ing the spark plug, slowly pull the
recoil starter 2-3 times to distrib-
ute the oil over the cylinder walls.
䡵
Remove, clean, and reinstall the
air filter element as described
under "daily maintenance."
䡵
Repair or replace any damaged
components as required, and then
store the unit in a clean, dry,
dust-free area.
Long Term Storage
(over 30 days)
CAUTION!
Carbon deposits in the combustion
chamber or exhaust port cannot be
removed in the field. For further decar-
bonization, return the 488 to your
Shindaiwa dealer.