Bruksanvisning Kubota AC60 Motor

Bruksanvisning

PRE-START CHECKS

STARTING AND OPERATION

MAINTENANCE (Refer to “PERIODIC SERVICE” when to maintenance.)

PRECAUTIONS AT RECOIL STARTING

STOPPING

STORAGE

CAPACITY CRANKCASE OIL

Place the engine horizontally and fill it

with oil.

Always check the oil level with the oil

gauge screwed in.

On models with an oil filler port in the

head cover, be sure to take out the oil

gauge first and then pour oil. When filling

oil, take care not to let the oil-filling jug’s

tip or the like block the oil filler port: this

is for air inside the engine to go out of

the oil filler port. This is essential for

measuring the oil level correctly after

letting the poured oil flow down into the

oil pan.

Item

Fuel tank

Crankcase (oil)

Capacity

AC60, OC60

3.6L

1.3L

OC80, OC95

5.5L

1.7L

Use SAE No.2-D Diesel Fuel Oil.

As air trapped in the fuel is purged

automatically, there is no need to bleed

the air.

FUEL

CAUTION

3

3 The engine must be shut down

and kept away from any source

of fire when fuel is added.

Set the speed control lever to the

“starting” position.

STARTING (Electric starting model)

Set the speed control lever to the

“starting” position.

STARTING (Recoil starting model)

Set the engine to “Compression”.

q Take your hand off the

decompression lever and pull the

recoil starter rope gradually.

w When you feel heavy in pulling the

rope, it is the position of

“Compression”. Stop pulling the

rope and return the handle slowly

to the original position.

This decompression device is

automatic return system. After

pulling the rope of recoil starter,

the decompression lever

automatically returns to the

original position. And the

decompression is released.

Pour a small amount of fuel through the

oil cup of the air cleaner flange for smooth

starting at low temperatures.

(1) Take the steps q and w of the recoil

starting and make sure the injection

sound is proper.

(2) Open the oil cup lid and pour a small

amount (less than 3 cc) of fuel.

(3) Close the oil cup lid.

(4) Take the steps e thru t of the recoil

starting to start the engine.

(Some models have no oil cup.)

[NOTE]

(1) Do not put in more than 3 cc of fuel,

because otherwise the starting will

become difficult.

(2) If the engine fails to start at the first

try, put in a smaller amount of fuel

for the next.

(3) It is essential to use SAE10W or

SAE10W30 oil for the crankcase in

cold season. Higher-viscosity oil

makes starting difficult.

Warm-up

As it takes a certain amount of time for

oil to circulate through the engine,

execute no-load operation for several

minutes to check the engine condition.

Break-in

Break-in the engine for the first week (40

to 50 hours) without applying excess load.

OPERATION

Setting the starter switch to “ST”

(starting) rotates the starter and starts

the engine.

As soon as the engine starts, release

the starter switch.

The starter switch position

varies by model.

e When the temperature is 5°C (41°F)

or less

Leave the starter switch at “GL” (to

preheat) for approximately five

seconds, then set it to “ST” (starting).

r When combined with a high-starting

load machine such as a compressor

Use the decompression lever for a

smoother start.

Raise the decompression lever and

turn the starter switch to “ST”

(starting). Release the decompression

lever after the engine rotates

smoothly.

Some models have no

decompression lever.

[NOTE]

(1) If the engine does not start after

starter motor is activated for 10

seconds, wait for about 30 seconds

and try again, otherwise, damage to

starter motor may occur.

(2) Never set the starter switch to “ST”

during operation to avoid damaging

the starter motor.

Make sure the sound of an injection.

q Put up the decompression lever

with your left hand and pull the

recoil starter rope with your right

hand four or five times to turn the

crank.

w After making sure of the sound of

injection, take step e.

e If you can not hear the sound,

check the fuel level or the position

of the speed control lever.

Raise the decompression lever.

(Decompress)

q Make it certain that the

decompression lever does not go

down even after hand is apart

from the lever.

w In case the decompression lever

goes down, please repeat the

operation refferred to in previous

item e.

Start the engine.

q Did you raise the decompression

lever?

w Grasp the handle of recoil starter

properly with your two hands.

e Pull the rope fully at a dash and the

engine starts. (Pulling the rope at a

dash is the knack for easy starting.)

r In case engine does not start, repeat

item e.

(Recoil starting model)

STARTING AT LOW TEMPERATURE

(4) Never open the oil cup lid while the

engine is running. Dust or dirt may be

sucked in, possibly damaging the

engine.

CAUTION

3

3 Never pour any fuel or oil in the

oil cup while the engine is

running. The engine may

overrun, which is very

dangerous.

THE FUEL FILTER THE CRANKCASE OIL THE AIR CLEANER THE OIL COOLER THE RUBBER HOSE

(1) Since the fuel filter is made of high-

quality filter paper designed to collect

fine dust, remove it after every 100

hours of operation by loosening the

screw and clean it in fresh fuel.

(2) Before removing the fuel filter, always

empty the fuel tank by removing the

drain plug.

[NOTE]

(1) If the fuel filter breaks, replace it.

Otherwise, dust invasion will occur,

shortening the service life of the fuel

injection pump or nozzle.

(2) Note that rough handling of the fuel

filter results in damage.

Change the crank case oil 25 hours after

initial operation and every 100 hours

thereafter, using the following procedure:

(1) While the engine is still warm, empty

the crankcase by removing the drain

plug.

(2) Fill the crankcase up to the specified

level with fresh oil.

Clean the air cleaner after every 100 hours

of operation. If the work site is especially

dusty, check and clean the air cleaner

every day.

Cleaning procedure

(1) Remove any dust from the air cleaner

and wipe the inner surfaces.

(2) Remove dust from the air cleaner

element by tapping it gently or by

applying compressed air from the

inside while rotating the element. If

the element is oily or coated with

carbon dust, soak it in a neutral

detergent solution for 15 minutes,

wash it several times, rinse with fresh

water, then allow it to dry.

[NOTE]

(1) Replace the element every year or

after every sixth cleaning, whichever

comes first.

(2) If the element breaks, replace it.

Otherwise, the service life of the

engine will be shortened.

CAUTION

3

3 Always stop the engine before

cleaning the oil cooler.

(1) Loosen the four bolts and remove the

spiral case.

(2) Check if the cylinder and oil cooler fins

are clogged with dust. If so, blow it

off using an air gun. As the oil cooler

fins are fragile, to prevent damage,

never use a screwdriver or spatula.

Replace the fuel and oil cooler hoses

every two years. When leakage is

detected during inspection, immediately

replace the hose even if its service period

has not expired.

If you pull the rope short, it

causes engine not only

unstart but also it gives

shock to your hand.

Pull the rope fully at a dash.

The engine does not start if

the pulling power is weak

and slow.

Pull the rope strongly at a

dash.

[IMPORTANT]

(1) When starting the engine, be sure to raise the

decompression lever.

(Refer to item STARTING r.)

If you try to start the engine without raising the

decompression lever, it causes not only difficulty in

starting but also sometimes the cause of rope

breakdown.

(2) After starting, if you notice unusual sound or smoke

from Air Cleaner, stop the engine immediately.

Because there is a possibility that engine rotates

reversely.

(1) Replace the engine oil and clean each

part.

(2) Thoroughly clean the air cleaner element

to prevent dust from sticking to it.

(3) After the engine cools down, place a

cover over it to protect it from dust, then

store in a place free from moisture and

dust.

CAUTION

3

3 To avoid the risk of fire when

storing the engine in a small

room, allow sufficient time for the

engine to cool down before

storage.

(4) If the engine is to be stored for a long

period, disconnect the battery from the

engine, adjust the fluid level properly

and store it in a dry, dark place.

(5) Since the battery discharges even during

storage, charge it every month in

summer or every two months in winter.

(1) Reduce the engine speed and operate

it for two or three minutes.

(2) Press the stop lever (red) in the

direction of the arrow until the engine

shuts down.

(3) Set the starter switch to “OFF”, then

extract it. (Electric starting model)

3 Loosening the idling set bolt enables

the speed control lever to shut the

engine down. For details, contact your

nearest local sales representative.

[NOTE]

3 Never stop the engine using the

decompression lever. Otherwise,

valves or related parts may be

damaged.

Decompression lever

“Down” (Released)

Decompression lever “Up”

(Decompressed)

Betyg

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