Cub Cadet SS 418 Manual del usuario - Página 5
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MAINTENANCE AND REPAIR INSTRUCTIONS
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Failure to maintain your air filter properly can result in poor performance or
can cause permanent damage to your engine.
1. Open the air filter cover. Push the tab on the under side of the cover
inward. Then pull the air filter cover out and up. (Fig. 25).
2. Remove the air filter (Fig. 25).
3. Wash the filter in detergent and water. Rinse the filter thoroughly and
allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat the filter.
5. Squeeze the filter to spread and remove excess oil.
6. Replace the filter (Fig. 26).
NOTE: If the unit is operated without the air filter, you will VOID the
warranty.
7. Reinstall the air filter cover. Position the slots on the top of the air filter
cover onto the tabs at the top of the back plate (Fig. 25).
8. Swing the cover down until the tab on the air filter backplate snaps into
place in the slot on the air filter cover (Fig. 26).
IDLE SPEED ADJUSTMENT
WARNING:
The cutting attachment may spin during idle speed adjustments. Wear
protective clothing and observe all safety instructions to prevent serious personal injury.
NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make
carburetor adjustments.
If, after checking the fuel and cleaning the air filter, the engine still will not idle, adjust the idle speed
screw as follows:
1. Start the engine and let it run at a high idle for a minute to warm up.
Refer to Starting/Stopping Instructions.
2. Release the throttle trigger and let the engine idle. If the engine stops,
insert a small Phillips screwdriver in between the air filter cover and the
engine cover (Fig. 27). Turn the idle speed screw in, clockwise, 1/8 of a
turn at a time (as needed) until the engine idles smoothly.
NOTE: The cutting attachment should not rotate when the engine idles.
3. If the cutting attachment rotates when the engine idles, turn the idle
speed screw counterclockwise 1/8 of a turn at a time (as needed), to
reduce idle speed.
Checking the fuel, cleaning the air filter, and adjusting the idle speed should solve most engine
problems. If not and all of the following are true:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.
REPLACING THE SPARK PLUG
Use a replacement part number 753-05784 or Champion
0.025 in. (0.635 mm).
1. Stop the engine and allow it to cool. Remove the
six (6) screws on the back of the engine cover
with a Flat-head or T-25 Torx screwdriver (Fig. 28).
2. Grasp the plug wire firmly and pull the cap from
the spark plug.
3. Clean dirt from around the spark plug. Remove
the spark plug from the cylinder head by turning
a 5/8 in. socket counterclockwise.
WARNING:
Do not sand blast, scrape
or clean electrodes. Grit in the engine
could damage the cylinder.
4. Replace cracked, fouled or dirty spark plug. Set
the air gap at 0.025 in. (0.635 mm.) using a feeler
gauge (Fig. 29).
5. Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8
in. socket clockwise until snug.
If using a torque wrench torque to: 110-120 in.•lb. (12.3-13.5 N•m) Do
not over tighten.
Fig. 25
Back Plate
Air
Filter
Fig. 26
Idle Adjustment Screw
Fig. 27
®
#RDZ4H spark plug. The correct air gap is
View Of The Rear Engine Cover
Screws
Fig. 28
0.025 in.
(0.635 mm.)
Fig. 29
CLEANING
WARNING:
Air Filter
Cover
before cleaning or servicing it.
Air
Use a small brush to clean off the outside of the unit. Do not use strong detergents. Household cleaners
Filter
that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic
housing or handle. Wipe off any moisture with a soft cloth.
Tab
STORAGE
• Never store the unit with fuel in the tank where fumes may reach an open flame or spark.
• Allow the engine to cool before storing.
Tabs
• Lock up the unit to prevent unauthorized use or damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
Short Term Storage (1-2 weeks)
1. Store the unit in a horizontal position. If this is not possible, store the unit vertically with the engine at
the top.
Locking Tab
Long Term Storage
1. Drain all gasoline from the gas tank into a container. Do not use gas that has been stored for more
than 30 days. Dispose of the old gasoline in accordance with federal, state and local regulations.
2. Start the engine and allow it to run until it stalls. This ensures that all gasoline has been drained from
the carburetor.
3. Allow the engine to cool. Remove the spark plug and put 5 drops of high quality motor oil into the
cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.
NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the
trimmer after storage.
4. Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance with federal, state
and local regulations.
5. Thoroughly clean the unit and inspect for any loose or damaged parts. Repair or replace damaged
parts and tighten loose screws, nuts or bolts. The unit is ready for storage.
CAUSE
ENGINE WILL NOT START
Empty fuel tank
Primer bulb wasn't pressed enough
Old fuel (over 30 days)
Fouled spark plug
Engine is over heated
ENGINE WILL NOT IDLE
Air filter is plugged
Old fuel (over 30 days)
Improper idle speed
ENGINE WILL NOT ACCELERATE
Old fuel (over 30 days)
Screws
Cutting attachment bound with grass
Dirty air filter
ENGINE LACKS POWER OR STALLS WHEN CUTTING
Old fuel (over 30 days)
Fouled spark plug
The outside temperature is above 90˚ F
IF FURTHER ASSISTANCE IS REQUIRED, CONTACT YOUR AUTHORIZED SERVICE DEALER.
Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle
Displacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 cu. in. (29 cc)
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 inch (0.655 mm)
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAE 30 Oil
Crankcase Oil Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.04 oz (90 ml)
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unleaded
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 oz (414 ml)
Approximate Unit Weight (No fuel, with handle, cutting attachment and shield) 12 - 13.5 lbs (5.4 -6 kg)
Trimming Line Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.105 inches (2.67 mm)
Cutting Path Diameter, Trimmer Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 inches (43.18 cm)
*All specifications are based on the latest product information available at the time of printing. We
reserve the right to make changes at any time without notice.
CLEANING AND STORAGE
To avoid serious personal injury, always turn the unit off and allow it to cool
TROUBLESHOOTING
ACTION
Fill fuel tank with fuel
Press primer bulb fully and slowly 10 times
Drain fuel tank and add fresh fuel
Replace or clean the spark plug
Move the choke lever to Position 2, squeeze the throttle
control and pull the starter rope until the unit starts. Run
the unit for 2-5 minutes. Then move the choke lever to
Position 3.
Replace or clean the air filter
Drain fuel tank and add fresh fuel
Adjust according to the Idle Speed Adjustment section
Drain gas tank and add fresh fuel
Stop the engine and clean the cutting attachment
Clean or replace the air filter
Drain fuel tank and add fresh fuel
Replace or clean the spark plug
Move the choke lever to Position 2, press the primer
bulb 10 times, squeeze the throttle control and pull the
starter rope until the unit starts. Run the unit for 2-5
minutes. The unit may be used during this time. Then
move the choke lever to Position 3.
SPECIFICATIONS
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