KUBOTA HORIZONTAL WATER-COOLED DIESEL ENGINE

RKIERIKND Series Displacement. 305 cc~ 1,181 cc

Maximum Output. 5.0 HP-25.0 HP

A Wide Range of Diesel Engines to Satisfy Any Need, Anywhere .

RK80-1, 95-1, 105-2, 125-2, ER (KND)1900D1, 2200D1, 2500D1 "Direct-Injection System Save 20% on Your Monthly Fuel Bill with a Direct-Injection Engine Many of Kubota's diesel engines incorporate an advanced direct injection combustion system that can reduce fuel consumption by as much as 20% compared with conventional swirl combustion and precombustion chamber systems . This highly-efficient direct-injection combustion system places the combustion chamber in a cavity in

"TVCS System TVCS for Steady, Efficient Operation Kubota's TVCS (Three-Vortex Combustion System) is a revolu-tionary system that creates three vortexes within the combustion chamber in order to produce an air/fuel mixture with a uniform spray and an optimum average particle size . This ideal air/fuel mixture, in turn, ensures complete

"Comes with a Built-in Balancer Both noise and vibration, caused by the piston's to-and-fro movement, are suppressed with the standard built-in balancer.

RK50,60,70,80-1,95-1,105-2,125-2 " Increased Lighting Lighting is increased from 6V-25W to 12V-45W. Increased lighting makes it easy to see as well as adds safety to working at night .

R K80-1,95-1 9 105-29125-2 "New Handle-Start Position The new handle-start position is in the front of the engine . This makes it much easier to start up the engine .

R K50, 60, 70

044 R K105-2 7125-2

the top of the piston itself in order to minimize power-robbing gas leakage and to prevent heat loss . It also has a swirl-type design inlet ports for more efficient mixing of air and fuel . Add it all up, and you have a highly-efficient diesel engine with powerful performance and superior fuel economy .

combustion for greater power output and more steady operation . As a result, Kubota's compact,

lightweight engines are just as powerful and efficient as much larger conventional engines .

'All engines on this catalog are built in Kubota's quality assured, ISO 9002 certified engine plant .

R K70-N

R K80-1

R K95-1-N B

R K125-2

SPECIFICATIONS

RK50 RK50-N RK50H R K50-N B

1200 1aw3 iGW 1eeo 2" 22W 1100a-

20 25 30 35 401 .

ENGINE REVOLUTION

Model RK50 RK50-N RK50H RK50-NB Type Horizontal water-cooled, 4-cycle diesel engine Number of cylinders 1 Bore x stroke [mm (in .)] 72 x 75 (2.83 x 2 .95) Displacement [cc (cu .in .)] 305(18.61)

Maximum (HP/r . p . m .) 5 .0/2400 output (kW/r . p . m .) 3 .73/2400

Continuous rated (HP/r . p . m .) 4 .5/2200 output (kW/r .p.m .) 3 .36/2200

Maximum torque (kgf-m/r .p.m .) 1 .62/1800 Specific fuel consumption (at continuous rated output) (g/HP-hr) 208

Combustion system Three vortex combustion system Compression ratio 24 Direction of revolution Counter-clockwise (facing flywheel) Starting system Manual speed-doubling handle I Cell start Lubricating system Forced lubrication with trochoid pump Cooling system Radiator Hopper Radiator Fuel Light diesel oil (SAE No.2-D) Lubricating oil API service CB-CC class

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

Cooling water capacity [L (US gal .)] 1 .3 (0 .34) 8 .5 (2 .25) 1 .3 (0 .34) Fuel tank capacity [L (US gal .)] 7 .5(l .98) Crankcase oil capacity [L (US gal .)] 2 .0 (0 .53) Dry weight [kg (Ibs .)] 64 (141 .1) 62 (136 .7) 72 (158 .8) Lamp and dynamo output

(V-W) with lamp 12-45

without lamp -

Charge output (V-A) - 12-1 .6 Starter power (V-kW) - - 12-1 .0

PERFORMANCE R K50/R K50-N/R K50H/R K50-N B

CURVES "" """"""".._. "unn " Et

15rI15

J13 kgm Nm

nnnr ""_".!.. 3 a

2 3

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RK60 RK60-N RK60H RK60-NB RK70 RK70-N RK70H RK70-NB RK80-1 RK80-1-N RK80H-1 RK80-1-NB Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine

1 1 1 76 x 75 (2 .99 x 2 .95) 80 x 75 (3 .15 x 2 .95) 82 x 84 (3 .23 x 3 .31)

340 (20 .75) 376 (22 .94) 443 (27 .03) 6.0/2400 7.0/2400 8.0/2400 4.48/2400 5.22/2400 5.97/2400 5.0/2200 6.0/2200 7.0/2200 3.73/2200 4 .48/2200 5.22/2200 1 .95/1800 2 .26/1800 2.63/1800

202 203 170

Three vortex combustion system Three vortex combustion system Direct injection system 24 24 18

Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel) Manual speed-doubling handle I Cell start Manual speed-doubling handle I Cell start Manual speed-doubling handle Cell start

Forced lubrication with trochoid pump Forced lubrication with trochoid pump Forced lubrication with trochoid pump Radiator Hopper Radiator Radiator Hopper Radiator Radiator Hopper Radiator

Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D)

API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

1 .3 (0 .34) 8 .5 (2 .25) 1 .3 (0 .34) 1 .3 (0 .34) 8 .5 (2 .25) 1 .3 (0 .34) 1 .6 (0 .42) 11 .0 (2 .91) 1 .6 (0 .42) 7 .5 (1 .98) 7 .5 (1 .98) 9 .5 (2 .51) 2 .0 (0 .53) 2 .0 (0 .53) 2 .4 (0 .63)

65 (143 .3) 63 (138 .9) 72 (158 .8) 67 (147 .7) 65 (143 .3) 72 (158 .8) 82 (180 .8) 80 (176 .4) 91 (200 .6) with lamp 12-45

without lamp -

with lamp 12-45

without lamp -

with lamp 12-45

without lamp -

- 12-1 .6 - 12-1 .6 - 12-1 .6 - 12-1 .0 - 12-1 .0 - 12-1 .4

R K60/R K60-N/R K60H/R K60-N B R K70/R K70-N/R K70H/R K70-N B R K80-1 /R K80-1-N/R K80 H-1 /R K80-1-N B

OMEN - moss "~~" ~M 26

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21

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5

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100 L2201 """unn gHP-h kIN-h

~HPb kYJ-h

gHPh 'kW 7 " ,-h -h

1400 1EW 1000 2000 2200 2-R.P.M . 1200 1400 1000 1- 2000 22W 24W RPIA. 1200 14W 1600 1800 2000 2200 24W R .P.M.

20 25

ENGINE

30

REVOLUTION

35 40 1JS 20 25

ENGINE

30

REVOLUTION

35 401s 20 25

ENGINE

30

REVOLUTION

35 a0 rJs

R K60 R K70 R K80-1

R K60-N R K70-N R K80-1-N

RK60H RK70H RK80H-1

R K60-N B R K70-N B R K80-1-N B

RK95-1

R K105-2

R K125-2

RK95-1-N

R K105-2-N

R K125-2-N

RK95H-1

R K105 H-2

R K125 H-2

RK95-1-N B

R K105-2-N B

R K125-2-N B

RK95-1 RK95-1-N RK95H-1 RK95-1-NB RK105-2 RK105-2-N RK105H-2 RK105-2-NB RK125-2 RK125-2-N RK125H-2 RK125-2-NB Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine

1 1 1 86 x 84 (3.39 x 3.31) 88 x 90 (3 .46 x 3.54) 94 x 90 (3 .70 x 3.54)

487 (29 .72) 547 (33 .38) 624 (38 .08) 9.5/2400 10.5/2400 12.5/2400 7.09/2400 7.83/2400 9.33/2400 8.0/2200 9.0/2200 10.5/2200 5.97/2200 6.71/2200 7.83/2200 3.08/1800 3.40/1800 4.04/1800

170 170 170

Direct injection system Direct injection system Direct injection system 18 18 18

Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel) Manual speed-doubling handle Cell start Manual speed-doubling handle Manual speed-doubling handle Cell start

_ Forced lubrication with trochoid pump Forced lubrication withtrochoid pump Forced lubrication with trochoid pump Radiator Hopper Radiator Radiator Hopper Radiator Radiator Hopper Radiator

Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D) API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

1 .6 (0 .42) 11 .0 (2 .91) 1 .6 (0 .42) 2 .1 (0 .55) 14.0 (3 .70) 2 .1 (0 .55) 2 .1 (0 .55) 14.0 (3 .70) 2 .1 (0 .55) 9.5 (2 .51) 10 .5 (2 .77) 10 .5 (2 .77) 2.4 (0 .63) 2 .8 (0 .74) 2 .8 (0 .74)

85 (187.4) 83 (183 .0) 91 (200 .6) 101 (222 .67) 99 (218 .3) 111 (244 .7) 105 (231 .5) 103 (227 .1) 111 (244 .7) with lamp

12-45 without lamp

- with lamp 12-45

without lamp -

with lamp 12-45

without lamp -

- 12-1 .6 - 12-1 .6 - 12-1 .6 12-1 .4 - 12-1 .4

- with two-shaft dynamic balancer with two-shaft dynamic balancer

RK95-1/RK95-1-N/RK95H-1/RK95-1-NB RK105-2/RK105-2-N/RK105H-2/RK105-2-NB RK125-2/RK125-2-N/RK125H-2/RK125-2-NB

_ 32 001 "--Lm- n ~~`""-r

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180 - - kW

9 RP-h? kW-h B

HP-h 3 kW-h H.P.""" MENEM ~ ~HPXW-h

12. 14W 1000 1000 2000 22W 24WR .P.M . 1200 14W 1- 1800 2- 2200 24WRAM. 12W 14W 1600 10W 2W0 22W 24WRY1.1.

20 25

ENGINE

W

REVOLUTION

35 40 1,a 20 25

ENGINE

30

REVOLUTION

35 40 r/s 20 25

ENGINE

30

REVOLUTION

35 40 it

ER1900DI ER2200DI ER2500DI

ER1900DI-N ER2200DI-N ER2500DI-N

KND1900DI KND2200DI KND2500DI

ER1900D1-NB1 ER2200D1-NB1 ER2500D1-NB1

ER1900DI ER1900DI-N KND1906DI ER1900DI-NB1 ER2200DI ER2200DI-N KND2200DI ER2200DI-NB1 ER2500DI ER2500DI-N KND2500DI I ER2500DI-NB1

Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine Horizontal water-cooled, 4-cycle diesel engine 1 1 1

110 x 105 (4 .33 x 4 .13) 116 x 105 (4 .57 x 4.13) 118 x 108 (4 .65 x 4.25)

997 (60 .83) 1109 (67 .66) 1181 (72 .06)

19.0/2200 22.0/2200 25.0/2400

14.17/2200 16 .41/2200 18.65/2400

16.0/2200 17.0/2200 20.0/2200

11 .94/2200 12.68/2200 14.92/2200

7.42/1200 8.3/1200 8.92/1400

163 155 155

Direct injection system Direct injection system Direct injection system

16 .5 17 16.5

Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel) Counter-clockwise (facing flywheel)

Manual speed-doubling handle Cell start Manual speed-doubling handle Cell start Manual speed-doubling handle Cell start

Forced lubrication with trochoid pump Forced lubrication with trochoid pump Forced lubrication with trochoid pump

Radiator Hopper Radiator Radiator Hopper Radiator Radiator Hopper Radiator

Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D) Light diesel oil (SAE No.2-D)

API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

API service CB-CC class (SAE #30, 20, 10W-30)

4.7(l .24) 24.0 (6 .34) 4 .7 (1 .24) 4.7(l .24) 24 .0 (6 .34) 4.7 (1 .24) 4.7(l .24) 24 .0 (6 .34) 4 .7 (1 .24)

16.0 (4 .23) 16.0 (4 .23) 16 .0 (4 .23) 24.0 (6 .34) 16.0 (4 .23)

5 .0 (1 .32) 5 .0 (1 .32) 5 .0 (1 .32)

185 (407 .9) 182 (401 .24) 175 (385-8)1190 (418 .9) 192 (423 .3) 189 (416 .7) 182 (401 .2) 197 (434 .3) 193 (425 .5) 190 (418 .9) 183 (403 .4) 198 (436 .5)

with lamp 12-25 x 3

without lamp -

with lamp 12-25 x 3

without lamp -

with lamp 12-25 x 3

without lamp -

- 12-1 .0 - 12-1 .0 - 12-1 .0

- 12-2 .0 - 12-2.0 - 12-2 .0

with two-shaft dynamic balancer with two-shaft dynamic balancer with two-shaft dynamic balancer

ER1900DI/ER1900DI-N/KND1900DI/ER1900DI-NB1 ER2200DI/ER2200DI-N/KND2200DI/ER2200DI-NB1 ER2500DI/ER2500DI-N/KND2500DI/ER2500D1-NBi

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20 25 20 251s 12. 1 am 16m 1200 2000 22mRPPA 1200 14m 1600 1800 2000 2200 2a00R- .

z0 25 ENGINE

20 REVOLUTION

35 rs 20 25 ENGINE

30 REVOLUTION

35 40-

DIMENSIONS (mm) A

K B

oo [a

1 1p IL q J _ _ _

I ~ S V E R W 4-11 ¢HOLE F

L

Model A B C D E F G H I J K L M N O P Q R S T U V W RK50(N) 650 236 492 419 - 182 103 140 435 322.5 175.5 306 0355 29 120 70 70 124 - 154 12 64 .4 171 RK60 N) 650 236 492 419 - 182 103 140 435 322.5 175.5 306 10355 36 120 70 70 131 - 154 12 64 .4 171 RK70 N 650 236 492 419 - 182 103 140 435 322.5 175.5 306 0355 43 120 70 70 138+--- 154 12 64 .4 171 RK80-1 N 715 251 516 448.5 77 .6 199 124 150 467 358 196 334 0362 36 132.5 72 68 140 98 160 8 - - R K95-1 N 715 251 516 448.5 77 .6 199 124 150 467 358 196 334 0370 43 132.5 72 68 147 98 160 8 - - RK105-2(N 755.5 259 521 458.5 80 .5 212 111 155 474 369.5 201 .5 341 .5 03801 45 135.5 75 95 152 - 170 10 - - R K125-2(N) 755.5 259 521 458.5 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - -

J A K

B

I " I 0 0 11

11

1 p f 1 - _ `rI 0 5 V E R W

4-11 O 1LE F G

L

Model A B C D E F G H I J K L M N O P Q R S T U V W RK50NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171 RK60NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171 RK70NB 664.5 250.5 492 419 - 182 103 140 435 322.5 175.5 306 0350 42 120 70 70 144 - 154 12 64 .4 171 RK80-1 NB 763 299 516 448.5 77 .6 199 124 150 467 358 196 334 0370 40 132.5 72 68 147 98 160 8 - - RK95-1 NB 763 299 516 448.5 77 .6 199 124 150 467 358 196 334 0370 40 132.5 72 68 147 98 160 8 - - RK105-2-NB 802 306 521 458.5 80 . 212 l 11 155 474 369.5 201 .5 341 .5 0380 45 135.5 75 95 150 - 170 10 - - RK125-2-NB 802 1306 521 458.5 80 .5 1212 1 111 1 155 474 1369 .5 1201 .5 341 .5 1 0380 45 1135 .5 75 95 150 - 170 10 - -

B

NII-~ R o R

G 7 111

_I Q s ~W

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-

4-11¢HOLE

___

V F

. . .

G

1.

L

Model A B -CD E F G H I J K L I M N O P Q R S T U V W RK50H 645 231 492 452 - 182 103 140 436 322.5 175.5 306 103551 29 120 70 70 124 - 154 12 64 .4 171 RK60H 645 231 492 452 - 182 -10-3-714-0 436 322.5 175.5 306 0355 36 120 70 70 131 - 154 12 64 .4 171 RK70H 645 231 492 452 - 182 103 140 436 322.5 175.5 306 0355 43 120 70 70 138 - 154 12 64 .4 171 RK80H-1 710 246 516 471 77 .6 199 124 150 467 358 196 334 0362 36 132.5 72 68 140 98 160 8 - - RK95H-1 710 246 516 471 77 .6 199 124 150 467 358 196 334 0370 43 132.5 72 68 147 98 160 8 - - RK105H-2 750.5 254 521 481 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - - RK125H-2 750.5 254 521 481 80 .5 212 111 155 474 369.5 201 .5 341 .5 0380 50 135.5 75 95 157 - 170 10 - -

DIMENSIONS (mm)

Model A B C D E F G H I J K L M N O P Q R T ER1900D1 1015 .5 357 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 ER1900D1-N 971 .5 313 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 ER2200D1 1015 .5 357 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 ER2200DI-N 971 .5 313 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 ER2500DI

~ 1015 .5 357 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200

ER2500DI-N 1051 5 393 676 568 107 6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200

- K A

__

8

U

awl

0 4-11¢ HOLE F G R L

Model A B C D E F G H I J K L M N O P Q R T ER1900DI-NB1 1051 .5 393 676 568 107.6 225 175 190 572 453 1 241 368 10442 63 188 112 88 207 200 ER2200D1-NB1 1051 .5 393 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 ER2500D1-NB1 1051 .5 393 676 568 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200

K A

B

t-

"~ ~rr

v U

~r1 - =

P E

O 4-110 HOLE F G R L

Model A B C D E F G H I J K L M N O P Q R T KN D1900D1 959.5 301 676 591 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 KN D2200D1 959.5 301 676 591 107.6 225 175 190 572 453 241 368 0442 63 188 112 88 207 200 KN D2500D1 1039.5 381 676 591 107.6 225 175 190 572 453 241 368 0442 -- 188 112 88 207 200

RK SERIES Detail of Flywheel

Mild

IFUN FaM

~r-

LT=44*.~q~t,

3-M10

3-M10

Optional PTO (Optional at extra cost) 14912-84514 (PTO shaft) 1 pc . 01153-51035 (Bolt) 3 pcs. 04512-50100 (Washer spring) 3 pcs.

Surface to which flywheel

05919-00750 (Key gradient) 1 pc . adaptor is attached

7H8

55

107

3-011 hole

O 00 r N

ER/KND SERIES Detail of Flywheel

3-M10

Optional PTO (Optional at extra cost) 14943-84413 (PTO shaft) 1 pc . 01153-51040 (Bolt) 3 pcs. 04512-50100 (Washer spring) 3 pcs. 05919-01280 (Key gradient) 1 pc .

E ID v O

Standard Accessories Model RK SERIES ER/KND SERIES Fuel tank 1 1 Air cleaner 1 1 Muffler (silencer) 1 1 Engine eye bolt 1 1 Instruction manual 1 1 Maintenance tool bag 1 1 12-14mm box spanner 1 1 10-12mm spanner 1 1 14-17mm spanner 1 1 19-22mm spanner 1 1 +,-driver 1 1

I<Iibof~ KUBOTA Corporation

2-47, Shikitsuhigashi 1-chome, Naniwa-ku, Osaka, 556-8601 Japan Fax : 06-6648-3521 Telex : 5267785 KUBOTA J -enginekubota .ne .j p I

Applications

`J~l LJbr IJ~/IJLi~~ ~L:~~l1L

'Specifications and dimensions are subject to change without prior notice .

Cat. No.1010-01-COM Printed in Japan'04 .7 .5 . STD. REX .