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Manual Kubota RK95 Engine

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Manual

OPERATOR’S MANUAL

PRE-OPERATION CHECK

FOREWORD

REQUESTING SERVICING

SAFE OPERATION

SPECIFICATIONS

Models RK80-1TRK70-T RK95-1T

Type

Number of cylinder

Bore × Stroke (mm)

Displacement (cm

)

Continuous

rated output

Max. output

Cooling system

Combustion system

Fuel

Lubricating oil

Lubricating system

Starting system

Direction of revolution

Cooling water capacity (L)

Fuel tank capacity (L)

Crankcase oil capacity (L)

Lamps

Dynamo (V-W)

Dry weight (kg)

Direct injection system

1.6

2.4

Horizontal, water-cooled 4 cycle diesel engine

Radiator

Light diesel oil (SAE No.2-D)

API Service CC, CD or CF class

(SAE#30, 20, 10W-30)

Forced lubrication with trochoid pump

Manual speed-doubling handle

Counter-clockwise (facing flywheel)

12V32W

[12V-45W]

kW/s

-1

(rps)

HP/min

-1

(rpm)

kW/s

-1

(rps)

HP/min

-1

(rpm)

82×84

443

5.2 / 36.7

7 / 2200

6 / 40

8 / 2400

80×75

376

4.5 / 36.7

6 / 2200

5.2 / 40

7 / 2400

Three vortex

combustion system

1.3

2.0

67 86

86×84

487

6 / 36.7

8 / 2200

7.1 / 40

9.5 / 2400

NOTE :

• Specifications are subject to change without notice.

REVERSED ENGINE

REVOLUTION AND REMEDIES

RK 70-T, RK 80-1T,

RK 95-1T

SERIES

PRINTED IN JAPAN

Code No. 1T281-8911-2

AQ . F . 3 - 8 . 10 . AK

KUBOTA Corporation wishes to express its deep appreciation to you

for your purchase of the KUBOTA Diesel Engine which has been de-

signed and manufactured through many years of research and devel-

opment.

We also wish to express our deep appreciation for your patronage of

KUBOTA products.

We are confident that the machine will give you the results you de-

sire, but in order to get

“Higher efficiency” “Greater economy” “Longer service”

To obtain the best use of your engine, please read this manual care-

fully.

It will help you become familiar with the operation of the engine and

contains many helpful hints about engine maintenance.

When you want to have

servicing from the dealer from

whom you purchased your

KUBOTA diesel engine, please

inform them of the model

number and serial number of

your KUBOTA diesel engine.

1. Before operation, wear a proper cap and work clothes to prevent clothing,

hair, towels and such from getting caught in the engine.

2. Before operation, check all set bolts and nuts for looseness and tighten if

necessary.

3. Avoid placing inflammable materials close to the engine during operation.

4. As exhaust gases are harmful:

(1) Avoid operating the engine in an ill-ventilated place or where exhaust

gases accumulate easily.

(2) Take special care during operation to prevent exhaust gases from af-

fecting yourself, or people or animals around you.

5. When using an belt, install a cover, fence or similar device to prevent the

risk of injury. Be sure to stop the engine before installing or removing the

belt.

6. If the engine is to be lent to somebody, explain the handling procedures

and point out that the Operator’s Manual must be read carefully before

use.

7. Keep children away from the engine during operation.

8. Do not touch the muffler, exhaust pipe or other hot parts during or imme-

diately after operation.

9. Always stop the engine in the following cases:

(1) When checking, adjusting or cleaning each part.

(2) When discharging, pouring or injecting oil from or into each part.

(3) When cleaning off dust or other foreign matter accumulated on the

muffler.

CAUTION

To avoid personal injury:

1 Reversed engine operation can make

the machine reverse and run it back-

wards. It may lead to serious trouble.

1 Reversed engine operation may make

exhaust gas gush out into the intake

side and ignite the air cleaner; It could

catch fire.

Reversed engine revolution must be stopped

immediately since engine oil circulation is cut

quickly, leading to serious trouble.

How to tell when the engine starts running back-

wards

1. Lubricating oil pressure drops sharply. Oil

pressure warning light, if used, will light.

2. Since the intake and exhaust sides are reversed,

the sound of the engine changes, and exhaust

gas will come out of the air cleaner.

3. A louder knocking sound will be heard when

the engine starts running backwards.

Remedies

1. Immediately set the engine stop lever to the

“STOP” position to stop the engine.

2. After stopping the engine, check the air cleaner,

intake rubber tube and other parts and replace

parts as needed.

COOLANT WATER FUELING OILING AIR BLEEDING

Fill the radiator with tap water or clear

rain water and retighten the pressure

cap. If any mud or dust is admitted into

the radiator, it will impede radiator

performance, eventually leading to

overheating of the engine. Although the

radiator will perform for more than a

week once it is filled, be sure to check

and see if the water level is proper before

starting the engine each time.

Fill the fuel tank with SAE No.2-D Diesel

Fuel Oil.

CAUTION :

1 Always stop the engine be-

fore refueling. Keep away

from sparks and flames.

(1) Level the engine and check the oil

level on the oil gauge. If it is lower

than the line marked on the oil level

gauge (the prescribed level), add

more oil until the oil level reaches

the upper marked line. If the oil in

the engine is badly contaminated,

drain all the oil and refill.

(2) Remove the air cleaner and check the

oil level and see if the oil is

contaminated. If the air cleaner is

stained heavily, wash it with fuel and

add oil until it reaches the specified

level.

When the engine is started for the first

time or right after being refueled, be sure

to bleed air from the fuel system in the

following manner.

(1) Throw the fuel cock lever from the

“C” (closed) position to the “O”

(open) position and wait 20 seconds

before starting the engine.

(2) Operate the engine with the fuel cock

lever in the “O” (open) position.

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