Robin EH12 User manual

ROBIN AMERICA, INC.
ROBIN TO WISCONSIN ROBIN
ENGINE MODEL CROSS REFERENCE LIST
ROBIN
EY08
EY15
EY15V
EY20
EY2OV
EY23
EY28
EY3
5
EY40 -
EY45V
EY2
1
EY44
EY18-3
EY25
EY27
EH11
EH12
EH15
EH17
EH21
EH25
EH30
EH30V
EH34
EH34V
EH43V
EC13V
DY23
DY27
DY30
DY3
5
DY41
WISCONSIN ROBIN
SIDE VALVE
W 1-080
W1-145
W1-145V
W1-185
W1-185V
W1-230
W 1-280
W 1-340
W 1-390
Wl-45OV
EY21W
EY44W
EY18-3W
EY25W
EY27W
OVERHEAD VALVE
WO1-115
wo1-120
WO1-150
WO1-170
wo1-210
WOl-250
WO 1-300
WO1-300V
WO1-340
WO
1 -340V
WO 1-43OV
TWO CYCLE
WT1-125V
DIESEL
WRD 1-230
WRD 1-270
-1-300
WRD1-350
WRD1-410
0
0
0

NTEN'TS
Section Title Page
1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
SPEClFlCATlONS ............................................................................
PERFORMANCE ............................................................................
2-1 MaximumOutput .......................................................................
2-2 ContinuousRatedOutput ..............................................................
1
4
4
4
4
5
8
GENERAL DESCRlPTlON OF ENGINE COMPONENTS ............................ 8
2-3
M~~~~~~T~~~~~ .......................................................................
2-4 performance curves ...................................................................
FEATURES ...................................................................................
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-1
0
4-1 1
4-1
2
4-1 3
4-1 4
4-1
5

13-1
13-2
13-3
13-4
13-5
13-6
13-7
..
"

1. SPECIFICATIONS
~~ ~~ ~
EH12
EH12B EH12DS EH12D EH12BS
Model
TY Pe Air-Cooled,4-Cycle, Single-Cylinder. Horizontal P.T.O. Shaft, Gasoline Engine
Bore
X Stroke
121 cc (7.38cu.in.)
PistonDisplacement
60
X 43 mm (2.36 X 1.57in.)
CompressionRatio
output
8.5
Continuous
4.0 /4000 HP/rpm
4.0/2000 HP/rpm
Max.
2.5/3000 HP/rprn 2.813600 HP/rpm2.5/1500 HP/rpm 2.8/1800 HP/rpm
Max. Torque 0.76/2600 kg*m/rpm
1.52
/ 1300 kgm/rpm
Direction
of Rotation Counterclockwise As Viewd From P.T.O. Shaft Side
Coolingsystem ForcedAir Cooling
Valve Arrangement Overhead Valve
Lubrication SplashType
Lubricant Automobile Oil
SAE #20, #30 or 1OW-30
Capacity of Lubricant
HorizontalDraft, FloatTypeCarburetor
0.6 liters (0.16
U.S. gal.)
Fuel
230 gr/HP-h At Continuous RatedOutputFuelConsumptionRate
AutomobileGasoline
Fuel FeedSystem
3.6 liters (0.95
U.S. gal.)
FuelTank Capacity
GravityType
IgnitionSystem
NGK B6HS
Spark Plug
Flywheel Magneto (Solid State)
ChargingCapacity
i 12V- 1.3~ 1
1 12V- 1.3A
StartingSystem
Starter
Recoil Starter Recoiland Electric
Starter Recoiland Electric
Recoil Starter
Speed Reduction
Centrifugal Flyweight System
Governor System
-
21 Cam Shaft Drive
Dry Weight
366mm (14.41in.)366mm (14.41in.)
366mm (14.41
in.)
366mm (14.41in.)Height
345mm (13.58in.)
330rnm (12.99in.)
345mm (13.58in.)
330mm (12.99in.)
Width
Dimensions
301mm(11.85in.)
301rnm (11.85in.)
303mm (11.93in.)303mm (11.93in.)Length
16.5kg (36.3Ib.)
14.0kg (30.8Ib.)
17.0kg (37.4Ib.)
14.5kg (31.91b.)
-1-

Model
TY Pe
Bore
X Stroke
Piston Displacement
Compression Ratio
Continuous
output
Max. Torque
Directionof Rotation
Cooling system
Valve Arrangement
Lubrication
Lubricant
Capacity of Lubricant
Carburetor
Fuel
FuelConsumption Rate
FuelFeed System
FuelTank Capacity
IgnitionSystem
Spark Plug
Charging Capacity
StartingSystem
Speed Reduction
Governor System
Dry Weight
Dimensions
Length
Width
Height
EH17
EH17BEH17BSEH17DEH17DS
Air-Cooled, 4-Cycle,Single-Cylinder, Horizontal P.T.O. Shaft, Gasoline Engine
67
X 49 mrn (2.64 X 1.93 in.)
172
cc (10.50 cu.in.)
8.5
6.0/2000 HP/rprn 6.0/4000 HP/rpm
3.5
/ 1500HP/rpm 4.0 / 1800HP/rpm I 3.5 13000 HP/rpm4.0/3600 Wrpm
2.18 / 1300 kgm/rpm 1.09/2600 kg*m/rpm
Counterclockwise As ViewdFrom
P.T.O. Shaft Side
Forced Air Cooling
Overhead Valve
Splash Type
Automobile Oil
SAE #20, #30or 1OW-30
0.65 liters (0.17 U.S. gal.)
Horizontal Draft,Float Type
Automobile Gasoline
230 gr/HP-h At Continuous Rated Output
Gravity Type
3.6 liters (0.95 U.S. gal.)
Flywheel Magneto (SolidState)
NGK B6HS
- 12V - 1.3A - 12V - 1.3A
Recoil Starter
Starter
Recoil and Electric Recoil Starter 1 Starter Recoil and Electric
I I I
2:l Cam Shaft Drive
-
Centrifugal Flyweight System
16.0kg
(35.2 Ib.) 1 18.5kg (40.7 Ib.) I 15.5kg (34.1Ib.) I 18.0kg (39.6 Ib.)
~~~~ ~~
315rnrn (12.40in.) 315mm (12.4Gin.) 313mrn (12.32in.) 313mrn(l2.32in.)
330mrn (12.99in.) 361
mm (14.21in.) 330mm (12.99in.) 361 rnm (14.21in.)
380mrn (14.96in.)
380rnm (14.96in.) 380mm (14.96in.) 380rnrn (14.9Sin.)
,-
-2-

I Et125
Model
EH25BEH25BSEH25DEH25DS
TY Pe
1 Air-Cooled, 4-Cycle, Single-Cylinder,Horizontal P.T.O. Shaft, Gasoline Engine
Bore
X Stroke 75
X 57 mm (2.95 x 2.24 in.)
PistonDisplacement
251 cc(15.31cu.in.)
Compression Ratio
8.5
Output
Max.Torque
3.38 I1 300 kgWrpm 1.69 / 2600 kg-mlrpm
Continuous 8.5/2000 HP/rpm 8.5/4000HP/rprn
Max. 5.5/1500 HP/rpm 6.411800 HP/rpm 5.5/3000 HP/rpm6.4/3600 HP/rpm
Direction
of Rotation Counterclockwise As Viewd From P.T.O.Shaft Side
Coolingsystem ForcedAir Cooling
Valve Arrangement OverheadValve
Lubrication SplashType
Lubricant Automobile Oil
SAE #20, #30 or 1OW-30
Capacity
of Lubricant 1 .O liters (0.26 U.S. gal.)
Carburetor HorizontalDraft, FloatType
Fuel Automobile Gasoline
FuelConsumption Rate
230 gr/HP-h At Continuous RatedOutput
Fuel Feed System GravityType
FuelTank Capacity 6.0 liters (1
59 US. gal.)
IgnitionSystem FlywheelMagneto(Solid State)
Spark Plug
NGK B6HS
Charging Capacity
- 12V - 1.3A - 12V - 1.3A
Starting System
~~~ ~~
Recoil and Electric
Starter
Recoil Starter
~~ ~~_____
Recoil Starter Recoil and Electric
Speed Reduction 2:l Cam Shaft Drive
-
Governor System CentrifugalFlyweightSystem
Dry Weight24.5 kg (53.9
Ib.) 28.5 kg (62.7 Ib.) 24.0kg (52.8 Ib.) 28.0kg(61.6 Ib.)
Length 360rnm (14.17in.) 360mrn (14.17in.) 360rnm (14.17in.) 360mm(l4.17in.)
Dimensions
Width
385mm (15.15in.) 405mm (15.94in.) 385mm (15.15in.) 405mrn (15.94in.)
Height 440mm (17.32in.) 440rnm (17.32in.) 440mm (17.32in.) 440mm (17.32in.)
I-
-3-

2.
PERFORMANCE
2-1 MAXIMUM OUTPUT
A.
The maximumoutput is the output of an engine with its throttle valve fully opened under the condition
that all the moving parts are properly worn in after the initial break-in period.
A new engine may not produce full maximum output while its moving parts are still not broken-in.
2-2 CONTINUOUS RATED OUTPUT
Thecontinuous rated output is theoutput ofan engine at optimum governedspeedwhich is most
favorable from the view point of engine’s life and fuel consumption.
When the engine
is installed on acertainequipment, it is recommended that thecontinuousoutput
required from the engine bekept below
this continuous rated output.
2-3MAXIMUM TORQUE
The maximum torque is the torque at the output shaft when the engine is producing maximum output at
certainrevolution.
-4-

2-4 PERFORMANCE CURVES
0 EH12D, B
4.0
(2.98 KW)
3.5
(2.61KW)
3.0
(2.24 KW)
2.5
(1.87 KW)
2.0
(1.49 KW)
1.5
(1.21KW)
1
.o
(0.75 KW)
0.5
(0.37 KW)
( ) for B type
-
MAXIMUM TORQUE
1
2000
(1
000)
3000
(1 500)
REVOLUTION --s) r.p.m.
0.8 (1.6) kg-m
0.7 (1.4) I
W
t
I
0.6 (1.2)
0
I-
CONTINUOUS
RETED
HP
RECOMMENDED
HORSEPOWER
\ RANGE
4000
(2000)
i
f
-5-

0 EHf7D, B
n
( ) for B type
.. "
REVOLUTION "-+ r.p.m.
kg-m
1 .I 0 ,(2.2)
t
I
1-00 (2.0) I
W
Y
0.9 (1.8) 6
CT
0
I-
CoNTiNuous
RETE0 HP
1 RECOMMENDED
\ RANGE
HORSEPOWER
- 6-