Amico AHD186 User manual

CONTENTS
Preface
Safety Information
Engine Specifications
Safety Label Location
Assembling
Engine Usage
Start the Engine
Electric Wiring Diagram
Run the Engine
Stop the Engine
PeriodicaI Check and Maintenance
Long-term Storage
Detail Diagram
Appendix 1.Overall and lnstallation Dimensions
Appendix 2.Performance Curve & Sizes Of Pto Flanges
Appendix 3.Sizes of PTO Flanges & Size of Output Shaft
Appendix 4.Malfunction and remedy of diesel engine
Limited Warranty
Product Registration Card
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3
6
12
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To correctly operate your engine are for your own safety,be
sure to read this manual carefuIly,otherwise the accident will
result.
If you have problem about your engine,please contact with
sales company or the authorized agent.
!
These manual guides you how to operate air-cooled diesel engine correctly,as well as
the warnings,Be sure to read this manual before operating,to keep your engine at the best
working condition.
This manual should be considered as the permanent part of the engine for easy checking
up.
Should this manual missing or destroyed,please make an order from your agent.If you
have anything unclear about this manuaI,please contact your agent.
air-cooled desel engine wiIl meet your requirement if you operate it according
to the manual instruction. Otherwise the fire,scald etc serious accident will result.
So reconfirm that you must to master this manual before operating the engine.
PREFACE:
Indicates that the serious personaI injury or equipment damage will
result if the instructions are not followed.
Indicates that the serious personal injury even death will resuIt if the in-
structions are not followed.
Indicates that the serious personaI injury even death will result if the in-
structions are not followed.
!
DANGER
!
WARNING
!
CAUTION
[OPERATING NOTICE]
indicates that you must give special attention while op-
erating the engine.Otherwise the engine performance
will decreased even the fault will result.Be sure to follow the
[OPERATING NOTICE]

SAFETY INFORMATION
(To operate the engine safely,please follow these items strictly.)
To prevent the fire,please pay attention to the follwing items:
If the gasoline is filled into the engine,the fire will result,so identify the
fuel type and model before refilling.
Be sure to stop the engine before refilling.
Wipe off the overflowed fuel oil.
Keep the engine far away from other flammable oils and goods.
Be careful when use the battery:
The battery will exhaust hydrogen while charging.Do charge the battery
at the well ventilated place.Meanwhile,flame and spark are not allowed
while charging.
The electrolyte is heavy acid solution,be sure skin and eyes do not touch
it,otherwise,rings with water immediately.
The exhaust is poisonous,pay attention to the following:
The exhaust is harmful to the health ,do not run the engine at the con-
fined rooms or unventilated places.If you have to run the engine indoors,
be sure there is good ventilation equipment.
Be care no to be involved:
Do not touch the moving parts while the engine is running,meanwhile,
when the engine is linked to the load,please cover the coupler and belt
etc parts which have potential danger before running.
Be care of the hot parts:
The muffler and the engine body will be very hot during running or just
after running,do not touch these parts.
Other safety information:
Do not operate the engine after drinking.
Be sure that the surrounding is safe before starting the engine.
Put on the uniform and anti-slippery shoes.
!
DANGER
!
DANGER
!
WARNING
!
WARNING
!
CAUTION
!
WARNING

Main Items
Type
Combustion System
Bore x Stroke(mm)
Piston Displacement(L)
Rated Power Max.kW(PS)
Continue.kW(PS)
Rated Speed(rpm)
Rotation direction
Spray Pressure kg/cm2(MPa)
Applicable Fuel Oil
Fuel Tank Capacity(L)
Lubricating Method
Applicable Lube Oil
Lube Oil
Capacity
Full(L)
Effective(L)
AHD186
Single-cylinder,4-stroke,vertical,air-cooled,
direct-injection diesel engine
Direct injection combustion
86 x 72
0.418
9.0
8.5
3600
Unclockwise viewed from the output shaft
200(19.6)
Light diesel
5.5
Pressure plus splashing
SAE 10W30 beyond CC grade
1.65
0.6
Output Shaft
Fuel Oil
Lubricating
System
Starting System
Cooling System
Recoil starter or Recoil/Electric starter
Forced air-cooled
1

2
This label guides you how to operate the engine safely.If the label comes off
or becomes hard to read,contact with your agent for replacement.
2.SAFETY LABEL LOCATION
3.ASSEMBLING
Too much shock during the running will damage the engine and the load,be sure
to set the engine tightly.
Fix the engine base seat tightly to prevent the engine from offset and shock.
Be sure the PTO shaft centers are in line.
If the puIley drives the engine,the pulley size must be in conformance with the load
speed.
The diameter of the pulley can be calculate by the following format:
If the pulley is too tight,the accident will result.Please select the applicable
size pulley.
Engine side pulley= Load side pulley X load speed
Egine speed(rated speed)
[OPERATING NOTICE]
!
CAUTION
3
2
1
AMICO

3
Make sure that the bearing hole of the pulley,keyway size are in conformace with the PTO
shaft.Othewise the accident will result.Correctly tight the PTO shaft bolt.Do reselect the
appropriate diameter pulley,if the engine continually exhaust black smoke during the running.
Be sure the pulley tension is appropriate.If the belt is too tight,hard starting will result,
further more,the belt will worn quickly and the PTO shaft will be bent,so the accident
will result.
Specified V-belt quantity:
The torsion of the pulley:Press the central part of the pulley surface.Every 100mm of the
pulley,deflection is about 1.6mm.(For example:the clearance of the pulley is 500mm,the
deflection will be 8mm.)
If you have any question about the as-
sembling of the engine and the connec-
tion to the load,contact with your agent.
Model
AHD186 Belt Model x Quantity,
B type x 3
4.ENGINE USAGE
The first 20hrs are the break-in period of the engine,the operator must obey to following items:
Warm up the engine 5 minutes after the initial starting.
Run the engine at low speed and zero load before the engine becomes warm.Do not run
the engine at high speed and zero load.
Do not run the engine with overload,
Recommend to run the engine at 3600r/min with 50% load in break-in period.
Replace the engine oil on time.
Replace the engine oil while the engine is warm
after 20-hours-running,the old engine oil will be
drained out completely.(Please see 8.1 Replace
the Engine Oil)
Selection and Usage of the fuel oil
Please use the light diesel most applicable for the performance of the engine.
4
5
6
replace engine oil
every 100hr in future
about 20hr
starting
about 20hr
4-1 Selection and Usage of the Fuel oil
1

4
Diesel usage:
If diesel is mixed with water and dirty,the abnormal running will result.Seal the diesel in
clean drums and store the drums in a dry place away from the rain and dirty.
If diesel has been stored for several hours,the water and dirty will deposit at the bottom of
the drum.You can pump the upper portion of the diesel for usage.
Refill the diesel
It is very dangerous to fill the gasoline into the diesel engine.Do identify the fuel oil
type and model before refilling.
do stop the engine before refilling.
Wipe off the overfiowed diesel.
Water and foreign matter will be sunk into the lower position in the
barrel.Put the suction pipe into the barrel at the place with a half
depth of the barrel,pump clean oil on the upper position in the
barrel.
FUELOILCAPACITY
Model
AHD186 Fuel Oil Capacity
5.5 Do not let fuel level be
higher than Red Mark
Cap
Red mark
4-2 Selection and Usage of the Engine Oil
Selection of the Engine Oil
It is very important to select the appropriate engine oil.If you use the improper diesel,the
piston rings will adhere together,the pistion will burn out,and the cylinder head gasket will
wear out quickly as well as bearings and other moving parts like that , so the engine life will
be shortened.
Recommend CC/CD oil classified byAPI in four seasons.
The viscosity of the engine oil is depended on the ambient temperature.
Ambient Temperature Above 20 C(summer)
SAE 30 10-20 C(spring,fall)
SAE 20
Below10 C(winter)
SAE 10W-30
2
3
!
DANGER
!
DANGER
!
CAUTION
1

5
Check and Refill the Engine Oil
Check the engine oil level with the engine on a level surface and the engine stopped.
Check the engine oil level before tightening the filler cap.
A.Be sure to check the engine oil level before starting the engine.
Check whether the engine oil level is between the upper level and the lower level.
wipe off the overflowed engine oil.
Screw on the oil filler cap after checking.
B.The engine oil level can not beyond the upper level.
C.The following is the oil capacity table:
Engine Oil capacity AHD186
1.65L
Dipstick High Limit(H)
Low Limit(L)
4-3 Replace the Air cleaner
Screw off the wing nut and remove the air
cleaner cover.If the engine is not
sufficient,the exhaust color will be abnormal,
then it is necessary to replace the element.
Reassemble the air cleaner cover and screw on
the wing nut after replacement.
2
1
2
Oil drain screw plug Dipstick
air cleaner cover Wing nut
element
[OPERATING NOTICE]

6
4-4 The Exhaust Direction
To prevent the exhaust from flowing into the air
cleaner,assemble an exhaust syphon on the case
of the muffler
Prevent the water from accumulating on the
exhaust syphon form flowing into the muffler.
5.START THE ENGINE
5-1 Manual Starting:
Start the engine according to the following
procedures:
Open the fuel cock.
Turn the governor lever to "STARTING"position
Hold the recoil starter handle
Pull the starter handle until you feel the resistance,
then return the handle slowly.
!
NOTE
1
2
3
A.
muffler
fuel tank
fuel cock ("OPEN")
regulator handle
starter
handle
recoil starter

7
B.Press the decompression lever to "Non-compres-
sion"position.The lever will return back automatically
after the engine started.
C.Hold the recoil starter handle with two hands and
pull it hardly.
D.It is difficult to start the engine at cold weather.
Remove the rubber plug on the cylinder head
and fill about 2CC engine oil before starting.
Always screw on the rubber plug on the cylinder head except filling,to prevent the rain
and dirty from flowing into the engine body.
!
NOTE
decompression lever
starter
handle
recoil starter

Open the fuel cock.
Put the engine speed lever
in the "RUN" position
Hold the starting handle
loosely
until you feel
resistance
Then return it slowly.
Push the decompression
lever down and release
Hold the starting
handle firmly.
Pull the rope hard and fast
Pull it all the way out.
Use two hands if necessary.
Pull the starting
handle slowly......
Start!
If the engine doesn't start
try again from
......
1
2
3
4
5
6
8
START THE DIESEL ENGINE

9
For3, don't pull the rope
too fast or hard.
Always pull the rope slowly.
For5,if you don't pull the rope
all the way out ,the engine won't
start
Always pull the rope all the
way out. Always pull the rope hard
and fast.
For5,if you don't pull hard
enough,the engine won't start
START THE DIESEL ENGINE

11
standard panel
installation panel of the
cylinder head case
hexagonal bolt
M6 x 70
remove
two bolts long
washer
ASSEMBLY:
NO. Specification Quantity
1 Electric starting switch body 1
2 Electric starting switch panel 1
3 Long washer 2
4 Hexagonal bolt M6 x 70 2
PROCEDURES:
Remove the electric starting switch body from the
standard panel, then reassemble it to the installa-
tion panel of the cylinder head case.
Screw off the two bolts from the cylinder head case.
Clip the reassembled panel with the long washer,
then tight it with hexagonal bolts.
[OPERATING NOTICE]
If the wire harness touch the muffler
or the PTO shaft, the fire will result.
Set the earth terminal of the harness with M6 bolt.
1
2
3
4
ground
terminals
M6 bolt coupler wire harness
12
3

ELECTRIC WIRING DIAGRAM
blue red
generator
blue blue
red
blue
starting key of
diesel engine
yellowred
regulator yellow
red black
12V
starting motor
accumulator
white
black
gray
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6.Run the Engine
To prevent the exhaust toxication, be sure to run the engine at ventilated place.
To prevent personal injury, avoid hands, personal body and cloths from involving into
the output shaft, pulley and V pulley etc moving parts.
Check the moving parts and the surrounding parts after stop the engine. Be sure that
there is no tool or cloth inside the engine body.
The muffler is very hot during running or just after running, do not touch the muffler.
The air cleaner will suck the surrounding airflow during the running. To prevent the
injury, avoid hands, personal body and cloths approach this part.
Warm up the engine for 5 minutes.
If the engine is very hot, set the governor lever to the expected position.
Be sure to regulate the engine speed with the governor lever.
Do not screw off the adjusting bolt and the fuel adjusting bolts, otherwise the abnormal
speed and output will result.
If the engine continually exhaust black smoke dur-
ing running, which indicates that the engine is run-
ning with overload, do adjust the engine pulley and
the load pulley.
speed limiter
F.O. limiter
!
WARNING
!
CAUTION
!
NOTE
!
NOTE
!
NOTE
1
2
3

14
PLEASE PAY ATTENTION TO THE FOLLOWING ITEMS WHILE RUNNING:
Whether there is abnormal vibration and sound.
Whether the exhaust is normal.
Whether the engine continually exhausts white smoke or black smoke.
Be sure to shut off the engine when the abnormal phenomenon arouses,
and contact with agent.
7.STOP THE ENGINE
If the engine is stopped in emergency, the
engine temperature will rise quickly, thus
the engine life will be shortened.
Fill diesel to the tank.
Check all the bolts and nuts. Screw on them if necessary.
Clean the dirty on the surface of the engine body.
regulator handle
fuel tank
fuel cock("OPEN")
[OPERATING NOTICE]
Set the governor lever to the low speed position,
then run the engine at zero load five minutes.
Set the governor lever to the *STOP*position. Do
not stop the engine with the decompression lever.
Set the fuel cock to*OFF*position.
Pull the recoil starter handle slowly, until you feel
resistance. (At this point, the decompression just
begins and intake/exhaust valves are both closed,
thus the cylinder can be prevented from rust.)
Concerning the electric starting engine, directly
turn the starting key to*OFF*position.
PREPARE FOR THE NEXT OPERATION:
1
2
3
1
2
3
4
5
1
2
3

15
8.Periodical Check and Maintenance
Periodical Check and maintenance are very important for maintaining the performance
and life of the engine.The following is the maintenance intervals and items table.The
item with "." require technician or special tools,please contact with agent.Periodical
check and maintenance table:
Intervals
Items
Check all the bolts
and nuts
Check and refill
engine oil
Replace engine oil
Clean or replace
engine oil cleaner
Check oil leakage
Replace air cleaner
Clean fuel oil
cleaner
Check nozzle
Check fuel injec-
tion pump
Adjust the clearance of
the intake/exhaust valve
Check the intake/
exhaust valve
Replace the piston
ring
Checkthe electrolyte
every day 20hrs 50hrs 100hrs 200hrs 500hrs 1000hrs
Check it every month,refill the distilled water if necessary.
(First time) (Second time)
(Clean) (Clean) (Replace)
(Replace)

16
Replace Engine Oil
Drain out the engine oil while the engine is warm
and refill the recommended engine oil.
Ambient temperature Grade Viscosity
Above 20 C (Summer) Beyond CC grade SAE 30
10 C~20 C (Spring and fall) SAE20
Below 10 C (Winter) SAE10W-30
Replace Engine Oil Intervals
First time 20 hrs
Second time Every 100 hrs
Clean Engine Oil Cleaner
Screw off the bolt and take out the engine oil
cleaner
Clean Every 100 hrs
Replace Every 1000hrs
186
Oil drain scew plug Dipstick
Screw off the bolt and take
out the engine oil cleaner.
oil filter
LO suction pipe
O ring
lock bolt