Cub Cadet CC5090 Instrukcja obsługi - Strona 5

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MAINTENANCE AND REPAIR INSTRUCTIONS

4. Place the spring in the new inner reel.

NOTE:

The spring must be assembled on the inner reel before reassembling the cutting attachment.

5. Insert the ends of the line through the eyelets in the outer spool (Fig. 34).

6. Place the new inner reel inside the outer spool. Push the inner reel and outer spool together. While holding the inner

reel and outer spool, grasp the ends and pull firmly to release the line from the holding slots in the spool.

7. Hold the inner reel in place and install the bump knob by turning counterclockwise. Tighten securely.

CHECKING THE OIL LEVEL

WARNING:

To prevent extensive engine wear and damage to the unit, always maintain the proper oil

level in the crankcase. Never operate the unit with a low oil level.

The importance of checking and maintaining the

proper oil level in the crankcase cannot be

overemphasized. Check oil before each use:

1. Stop the engine and allow oil to drain into the

crankcase.

2. Place the engine on a flat, level surface with the

cutting head shield hanging off a work bench or

table to get a proper oil level reading (Fig. 35).

3. Keep dirt, grass clippings and other debris out

of the engine. Clean the area around the

dipstick before removing it.

4. Remove the oil fill plug.

5. Look into the oil fill hole, use a flashlight if needed. The oil should be just touching

the inner most thread (Fig. 36).

6. If the oil level is not touching the inner most thread on the oil fill hole, add a small

amount of oil to the oil fill hole and recheck (Fig. 37). Repeat this procedure until

the oil level reaches the inner most thread on the oil fill hole.

NOTE:

Do not overfill the unit.

NOTE:

Make sure the O-ring is in place on the oil fill plug when checking and

changing the oil (Fig. 37).

CHANGING THE OIL

CAUTION:

Wear gloves to prevent injury when handling the unit.

For a new engine, change the oil after the first 10 hours of operation. Change the oil

while the engine is still warm. The oil will flow freely and carry away more impurities.

1. Remove the oil fill plug.

2. Pour the oil out of the oil fill hole and into a container by tipping the unit to a

vertical position (Fig. 38). Allow ample time for complete drainage.

3. Wipe up any oil residue on the unit and clean up any oil that may have spilled.

Dispose of the oil according to Federal, State and local regulations.

4. Refill the crankcase with 3.04 fluid ounce (90 ml) of SAE 30 SF, SG, SH oil. (Fig. 39)

NOTE:

Use the bottle and spout saved from

initial use to measure the correct

amount of oil. The top of the label on

the bottle measures approximately 3.04

ounces (90 ml) (Fig. 40). Check the

level, See Checking the Oil Level. If the

level is low, add a small amount of oil

and recheck. Do not overfill (Fig. 39).

5. Replace the oil fill plug.

6. Reconnect the spark plug boot.

AIR FILTER MAINTENANCE

WARNING:

To avoid serious personal injury, always turn the unit off and allow it to cool before you

clean or service it.

Cleaning the Air Filter

Clean and re-oil the air filter every 10 hours of

operation. It is an important item to maintain.

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. 41).

2. Remove the air filter (Fig. 41).

3. Wash the filter in detergent and water (Fig. 42).

Rinse the filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly

coat the filter (Fig. 43).

5. Squeeze the filter to spread and remove excess

oil (Fig. 44).

6. Replace the filter (Fig. 45).

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. 45).

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. 41).

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable. An idle adjustment screw is between the

air filter cover and the engine starter housing (Fig. 46).

NOTE:

Careless adjustments can seriously damage your unit. An authorized

service dealer should make carburetor adjustments.

Check Fuel

Old fuel is usually the reason for improper unit performance. Drain and refill the tank with fresh fuel prior to making any

adjustments. Refer to Oil and Fuel Information.

Clean Air Filter

The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow. This is often

mistaken for an out of adjustment carburetor. Check the condition of the air filter before adjusting the idle speed screw.

Refer to Air Filter Maintenance.

Adjust Idle Speed Screw

WARNING:

The cutting attachment may spin during idle speed adjustments. Wear protective clothing

and observe all safety instructions to prevent serious personal injury.

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. 46). 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.

ROCKER ARM CLEARANCE

WARNING:

To avoid serious personal injury, always turn the unit off and allow it to cool before you

clean or service it.

This service requires disassembly of the engine. If feeling unsure or unqualified to perform this service, take the unit to

an authorized service center.

NOTE:

Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and every

25 hours of operation.

• The engine must be cold when checking or adjusting the valve clearance.

• This task should be performed inside, in a clean,

dust free area.

1. Remove the six (6) screws on the back of the

engine cover with a Flat-head or T-25 Torx

screwdriver (Fig. 47).

2. Disconnect the spark plug wire.

3. Clean dirt from around the spark plug. Remove

the spark plug from the cylinder head by

turning a 5/8 in. socket counterclockwise.

Max Oil Fill Line

Fig. 35

Oil Fill

Plug

O-Ring

Oil Fill

Hole

Fill Line

Fig. 39

Air Filter

Cover

Air

Filter

Tab

Fig. 41

Fig. 43

Back Plate

Air

Filter

Idle Adjustment Screw

View Of The Rear Engine Cover

Rocker Arm

Cover

Screws

Spark

Plug Hole

Fig. 47

4. Remove the engine cover (Fig. 47).

5. Clean dirt from around the rocker arm cover.

Remove the screw holding the rocker arm

cover with a large flat blade screwdriver or Torx

T-25 bit (Fig. 48). Remove the rocker arm cover

and gasket.

6. Pull the starter rope slowly to bring the piston

to the top of its travel, (known as top dead

center). Check that:

• The piston is at the top of its travel while

looking in the spark plug hole (Fig. 48).

• Both rocker arms move freely, and both valves are closed.

If these statements are not true, repeat this step.

7. Slide the feeler gauge between the rocker arm and the valve return spring. Measure the clearance between the

valve stem and rocker arm (Fig. 49). Measure both the intake and exhaust valves.

The recommended clearance for both intake and exhaust is .003 – .006 in. (.076 – 0.152 mm). Use a standard

automotive .005 in. (0.127 mm) feeler gauge. The feeler gauge should slide between the rocker arm and valve stem

with a slight amount of resistance, without binding. See Figures 49 and 50.

8. If the clearance is not within specification:

a. Turn the adjusting nut using a 5/16 inch (8 mm) wrench or nut driver (Fig. 49).

Fig. 36

• To increase clearance, turn the adjusting nut counterclockwise.

• To decrease clearance, turn the adjusting nut clockwise.

b. Recheck both clearances and adjust as necessary.

9. Reinstall the rocker arm cover using a new gasket. Torque the screw to 20–30 in•lb (2.2–3.4 N•m).

10. Check the spark plug and reinstall. See Replacing the Spark Plug.

11. Replace the spark plug wire.

12. Reinstall the engine cover. Check alignment of the cover before tightening the screws. Tighten screws.

REPLACING THE SPARK PLUG

Use a replacement part number 753-05255 spark plug. The correct air gap is 0.025 in. (0.635 mm.). Remove the plug

Fig. 37

after every 25 hours of operation and check its condition.

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. 47).

2. Grasp the plug wire firmly and pull the cap from the spark plug.

WARNING: Do not sand blast, scrape or clean electrodes. Grit in the

engine could damage the cylinder.

3. Clean dirt from around the spark plug. Remove the spark plug from the cylinder

head by turning a 5/8 in. socket counterclockwise.

4. Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.635 mm.)

using a feeler gauge (Fig. 51).

5. Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8 in. socket

clockwise until snug.

Fig. 38

If using a torque wrench torque to: 110-120 in.•lb. (12.3-13.5 N•m)

Do not over tighten.

SPARK ARRESTOR MAINTENANCE

1. Remove the rear engine cover. See Rocker Arm Clearance.

2. With a flat blade screwdriver or Torx T-20 bit and a T-25 bit, remove the screws

attaching the spark arrestor cover to the muffler (Fig. 52).

3. Pull the tab on the spark arrestor cover out of the muffler. Remove the spark

arrestor cover.

4. Remove the spark arrestor screen from the spark arrestor cover.

Fig. 40

5. Clean the spark arrestor screen with a wire brush or replace it.

6. Reinstall the spark arrestor screen, spark arrestor cover and screws.

CLEANING

WARNING:

cleaning or servicing it.

Use a small brush to clean off the outside of the unit. Do not use strong detergents. Household cleaners 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.

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.

Fig. 42

• 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.

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 60 days.

Dispose of the old gasoline in accordance to 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.

Fig. 44

NOTE:

Remove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after

storage.

Tabs

4. Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance to 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.

TRANSPORTING

• Allow the engine to cool before transporting.

Locking Tab

• Secure the unit while transporting.

Fig. 45

• Drain the gas tank before transporting.

• Tighten gas cap before transporting.

Fig. 46

Fig. 48

MAINTENANCE AND REPAIR INSTRUCTIONS

Adjustment

Rocker

Intake

Arms

Fig. 49

To avoid serious personal injury, always turn the unit off and allow it to cool before

Nuts

Exhaust

Valve Stem

Fig. 50

0.025 in.

(0.635 mm.)

Fig. 51

Muffler

Spark Arrestor Screen

Diverter

T-25

Screw

Slot

T-20 Screw

Fig. 52