Cub Cadet GC145 Betreibershandbuch PDF herunterladen (Seite 4)

• 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 753-05758 or a Champion® RDZ4H spark plug.

. 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. 21).

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

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

ead 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. 25).

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

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

o not over tighten.

LEANING

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

romatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off

ny moisture with a soft cloth.

TORAGE

•

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.

• 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

. Remove the fuel cap, tip the unit and drain the fuel into an approved container.

OTE: Do not use gasoline that has been stored for more than 30 days. Dispose of old gasoline in accordance with

ederal, state and local regulations.

. Start the engine and allow it to run until it stalls. This ensures that all gasoline has been drained from the carburetor.

. Allow the engine to cool. Remove the spark plug and put 5 drops of high quality motor oil into the cylinder. Pull the

tarter rope slowly to distribute the oil. Reinstall the spark plug.

OTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the unit after storage.

. Change the oil. Refer to Changing the Oil. Dispose of the old oil in accordance with federal, state and local regulations.

. Thoroughly clean the unit and inspect for any loose or damaged parts. Repair or replace damaged parts and

ighten loose screws, nuts or bolts. The unit is ready for storage.

HECKING THE 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 unit on a flat, level surface to get a

roper oil level reading.

3. Keep dirt, grass clippings and other debris out

f the engine. Clean the area around the

ipstick before removing it.

. Remove the oil fill plug/dipstick and wipe off oil. Reinsert it all the way back in. (Fig. 15)

. Remove the oil fill plug/dipstick and check the oil level. Oil should be up to the top of the dipstick (Fig. 14).

. If the level is low, add a small amount of oil to the oil fill hole and recheck (Fig. 17). Repeat this procedure until the

oil level reaches the top of the dipstick.

NOTE: Do not overfill the unit.

NOTE: Make sure the O-ring is in place on the oil fill plug/ dipstick when checking and changing the oil (Fig. 14).

HANGING THE OIL

hange the oil while the engine is still warm. The

il will flow freely and carry away more impurities.

1. Unplug spark plug boot to prevent accidental

starting.

2. Remove the oil fill plug/dipstick.

3. Pour the oil out of the oil fill hole and into a

ontainer by tipping the unit to a vertical

position (Fig. 16). Allow ample time for

omplete drainage.

. Wipe up any oil residue on the unit and clean

p any oil that may have spilled. Dispose of the oil according to Federal, State

nd local regulations.

. Refill the crankcase with 3.04 fl.oz. (90 ml) of SAE 30 SF, SG, SH oil

NOTE: Use the bottle and spout saved from initial use to measure the correct amount

f oil. The top of the label on the bottle measures approximately 3.04 ounces (90

l) (Fig. 18). Check the level with the dipstick. If the level is low, add a small

mount of oil and recheck. Do not overfill (Fig. 14).

. Replace the oil fill plug/dipstick.

. Reconnect the spark plug boot.

IR FILTER MAINTENANCE

leaning the Air Filter

ailure to maintain the air filter properly can result in poor performance or can cause

permanent damage to the engine.

1. Open the air filter cover by unscrewing the cover screw (Fig. 19).

. Remove the air filter (Fig. 19).

. Wash the filter in detergent and water. Rinse the filter thoroughly and allow it to dry.

. Apply enough clean SAE 30 motor oil to lightly coat the filter.

. Squeeze the filter to spread and remove excess oil.

. Replace the filter (Fig. 19).

OTE: Operating the unit without the air filter, will VOID the warranty.

. Reinstall the air filter cover. Position the hooks on the air filter cover with the slots on the air filter backplate (Fig. 19).

. Swing the cover to the left and align the cover screw with the cover screw hole. Tighten the cover screw to secure the

ir filter cover (Fig. 19).

OTE: Do not over tighten as this may strip the screw.

DLE SPEED ADJUSTMENT

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

ir filter cover and the engine starter housing (Fig. 20).

NOTE: Careless adjustments can seriously damage the 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

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

efer to Air Filter Maintenance.

DJUST IDLE SPEED SCREW

f, after checking the fuel and cleaning the air filter, the engine still will not idle, adjust the idle speed screw as follows:

. 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 in between the Air Filter

over and the Engine Cover (Fig. 20). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed)

until the engine idles smoothly.

NOTE: The tines should not rotate when the engine idles.

. If the tines 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

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

an authorized service center.

• 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 five (5) screws with a Flat-head or T-20 Torx® screwdriver and the one T-25 screw (Fig. 21).

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.

4. Remove the engine cover (Fig. 21).

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. 22). 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. 22).

• 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. 23). 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 Figs. 23 and 24.

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. 24).

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.

ig. 19

Air Filter Cover

Air Filter

Cover

Screw Hole

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING:

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

cleaning or servicing it.

WARNING:

To avoid serious personal injury, always turn the unit off

nd allow it to cool before cleaning or servicing it.

WARNING:

The tines may spin during idle speed adjustments. Wear protective clothing and observe

all safety instructions to prevent serious personal injury.

12 3

Fig. 20

Idle Adjustment Screw

WARNING:

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

cleaning or servicing it.

Hooks

over Screw

Slots

Fig. 14

Fig. 15

Oil Fill Plug/ Dipstick

Oil Fill

lug

-Ring

ig. 16

Oil Fill

Hole

ig. 17

Fig. 18

Fill Line

-Ring

Full

Add 1.4-1.5 oz.

(

41-44 ml)

Fig. 21

View Of The Rear Engine Cover

Fig. 22

Rocker Arm

Cover

Fig. 23

Adjustment

Nuts

Intake

Exhaust

Rocker

Arms

Spark

Plug Hole

Valve Stem

Fig. 24

Feeler

Gauge

0.003–0.006 in.

(0.076–0.152 mm)

Screws

T-25 Screws

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

ngine could damage the cylinder.

Fig. 25

.025 in.

(

0.635 mm.)

WARNING:

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

leaning or servicing it.

MAINTENANCE AND REPAIR INSTRUCTIONS

CLEANING AND STORAGE

AUSE

CTION

Old fuel (over 30 days) Drain fuel tank and add fresh fuel

ultivator tines bound with dirt or grass

top the engine, clean and remove any debris binding the

tines

Dirty air filter Clean or replace the air filter

Old fuel (over 30 days) Drain fuel tank and add fresh fuel

ouled spark plug

eplace or clean the spark plug

Empty fuel tank Fill fuel tank with fuel

Primer bulb wasn't pressed enough Press the primer bulb 10 times or until fuel is visible

Old fuel (over 30 days) Drain fuel tank and add fresh fuel

ouled spark plug

eplace or clean the spark plug

ir filter is plugged

eplace or clean the air filter

Old fuel (over 30 days) Drain fuel tank and add fresh fuel

Improper idle speed Adjust the idle speed

ROUBLESHOOTING

ENGINE WILL NOT START

NGINE WILL NOT IDLE

NGINE WILL NOT ACCELERATE

IF FURTHER ASSISTANCE IS REQUIRED, CONTACT AN AUTHORIZED SERVICE DEALER.

ENGINE LACKS POWER OR STALLS

Engine Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 cu. in. (26.2 cc)

Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,200+ rpm

Idle Speed RPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 - 3,600 rpm

Valve clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003–0.006 in. (0.076–0.152 mm)

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 oz (532 ml)

Cultivating Path Width (Maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 inches (22.86 cm)

Cultivating Depth (Maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 inches (15.24 cm)

Approximate Weight (no fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 lb. (11.5 kg)

SPECIFICATIONS*

*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.

1 2 3 4 5 6 7 8 9 ... 15 16

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