YARDMAX LC152F-1 User manual

Save This Manual for Future Reference
Tame the Great OutdoorsTM
Gasoline Engine
Operator’s Manual
MODEL NUMBER
LC152F-1
SERIAL NUMBER
PURCHASE DATE
Both model number and serial
number may be found on the
main label. You should record
both of them in a safe place for
future use.
FOR YOUR SAFETY
READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE
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Introduction 1
Specications 3
Safety 4
Know Your Engine 5
Controls 6
Check before Operation 7
Operation 8
Maintenance 9
Storage 13
Troubleshooting 14
Technical & Consumer Information 15
Wiring Diagram 16
TABLE OF CONTENTS
Your new YARDMAX™ engine offers quality construction
that is easy and safe to operate. With proper use and
care, it is designed to give you many years of dependable
service.
Prepare to experience the durability to take on any job
with the ease, portability, and convenience of your new
engine!
Discover the YARDMAX Advantage
At YARDMAX, we understand that land ownership
definitely has its privileges, but it also comes with a
great deal of responsibility. When duty calls and you
need to respond, will you have what it takes to tame the
great outdoors?
When looking for outdoor power equipment (OPE) to get
the job done right, at the right price, YARDMAX delivers
the perfect combination of performance and practicality.
YARDMAX has a solution that’s right for you.
MAX Performance, MAX Value, MAX Support —
that’s YARDMAX
Backed by decades of proven manufacturing expertise
Enhanced design features come standard
Engineered for the best user experience
Quality metal parts are used instead of plastic
A robust warranty supports all products
Budget-friendly prices make it practical
Up for the job? YARDMAX is.
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Introduction
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Carefully read through this entire operator’s manual
before using your new engine. Pay attention to all
cautions and warnings.
ENGINE SERIAL NUMBER
DISCLAIMER
YARDMAX reserves the right to discontinue, change,
and improve its products at any time without notice
or obligation to the purchaser. The descriptions and
specications contained in this manual were in effect at
printing. Equipment described within this manual may be
optional. Some illustrations may not be applicable to your
unit.
ENVIRONMENTAL
Recycle unwanted materials instead of disposing of
them as waste. All tools, hoses, and packaging should
be taken to the local recycling center and disposed of
in an environmentally safe way.
Record the engine serial number on the front cover of this
manual. You will need this serial number when ordering
parts, and when making technical or warranty inquires.
ENGINE TYPE
SERIAL NUMBER
DISCLAIMER
Keep this owner's manual handy, so you can refer to it at
any time.
This owner's manual is considered a permanent part of
the engine and should remain with the engine if resold.
The information and specifications included in this
publication were in effect at the time of approval for
printing.
READ THIS OWNER’S MANUAL CAREFULLY. Pay special
attention to these symbols and any instructions that follow:
Warning!
Indicates serious injury or death will result if
instructions are not followed.
Danger!
Indicates a strong possibility that serious injury or
death could result if instructions are not followed.
Caution!
Indicates a possibility that minor injury or an result if
instructions are not followed.
Notice:
Indicates that equipment or property damage can
result if instructions are not followed.
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Operator’s Manual
Introduction
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* The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model
and measured in accordance with SAE J1349 at 3,600 rpm (Net Power) and at 3,800 rpm (Max. Net Torque). Mass production engines
may vary from this value.
* Actual power output for the engine installed in the nal machine will vary depending on numerous factors, including the operating speed
of the engine in application, environmental conditions, maintenance, and other variables.
SPECIFICATIONS
Model 152F-1
Type Single cylinder 4-Stroke
Forced air cooling
Rated power
(kW/3600rpm)* 1.5Kw/3600rpm
Max torque N•m/rpm 4N.m/3400rpm
Fuel consumption ratio
(g/kW•h) ≤450
Idle speed (rpm) 2000±150
Speed uctuating ratio ≤10%
Noise ≤ dB(A) 90
Bore×Stroke (mm) 52X37
Displacement (cc) 79
Compression ratio 8.5:1
Lubricating mode Splash
Staring mode Recoil start
Rotation Anti-clockwise
(from P.T.O.Side)
Valve clearance (mm) Intake valve 0.10-0.15
Exhaust valve 0.15-0.20
Spark plug gap (mm) 0.7~0.8
Ignition mode Transistorized magneto ignition
Air cleaner Single element
Dimension
(inch)
Length 12.2
Width 10.2
Height 12
Net weight (lbs) 23.1
SUPPORT
Have questions about your YARDMAX equipment?
Call us at 844-YARDMAX, email us at
[email protected], or contact us via your
favorite social media site.
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Specications
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SAFETY
IMPORTANT SAFETY INFORMATION
Most accidents with engines can be prevented if you follow all
instructions in this manual and on the engine. Some of the most
common hazards are discussed below, along with the best way to
protect yourself and others.
OWNER RESPONSIBILITIES
YARDMAX engines are designed to give safe and dependable
service if operated according to instructions. Read and
understand this owner’s manual before operating the engine.
Failure to do so could result in personal injury or equipment
damage.
Know how to stop the engine quickly, and understand the
operation of all controls. Never permit anyone to operate the
engine without proper instructions.
Do not allow children to operate the engine. Keep children and
pets far away from the area of operation.
OPERATOR SAFETY
Safety Measures
START/STOP SAFETY
Starting The Engine
Warning!
Wash hands after using the machine, refueling, and
changing uids. Certain components in this product
and its accessories contain chemicals known to cause
cancer, birth defects, or other reproductive harm
according to the State of California.
Warning!
Kick back or rapid retraction of the recoil cord will
pull the operators hand and arm towards the engine
quicker than you can let go.
Warning!
Always run your engine outdoors. Exhaust from the
engine contains fumes known to cause cancer, birth
defects, or other reproductive harm according to the
State of California.
Warning!
YARDMAX engines are not engineered or intended to
be used to power any other device than what it was
originally specified in. Including but not limited to
competitive racing events, recreational, sport or all-
terrain vehicles (ATV’s), go-karts, fun-karts, golf-carts, etc.
Avoiding Kick Back
Lightly pull the recoil handle so that the cord is taught prior to
pulling harder to start.
Grip the starter handle so you can quickly release it if needed.
If gripped too tightly injury could result.
When the rope is taut with resistance pull quickly and smoothly
to avoid kick back.
FUEL SAFETY
Warning!
Fuel and its vapors are extremely ammable and
explosive. Fire or explosion can cause severe burns or
death. Keep fuel away from sparks, open ames, pilot
lights, heat sources, or any other ignition sources. If
fuel spills, wait for it to completely evaporate before
starting the engine.
HOT EXHAUST
The mufer will become very hot during operation and will remain
hot for a while after stopping the engine. Be careful not to touch the
mufer while it is hot. Let the engine cool before storing it indoors.
To prevent re hazards and to provide adequate ventilation for
stationary equipment applications, keep the engine at least 3
feet (1 meter) away from both building walls and from other
equipment during operation. Do not place ammable objects
close to the engine.
CARBON MONOXIDE HAZARD
Exhaust gas contains poisonous carbon monoxide. Avoid
inhalation of exhaust gas. Never run the engine in a closed garage
or conned area.
OTHER EQUIPMENT
Review the instructions provided with the equipment powered
by this engine for any additional safety precautions that should
be observed in conjunction with engine startup, shutdown,
operation, or protective apparel that may be needed to operate
the equipment.
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Safety
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Oil Dipstick
Oil Sensor
Drain Plug
Switch
Oil Alert (Optional)
Choke Lever
Cylinder Head Cover
Spark Plug
Mufer
Air Cleaner
Recoil Starter
Starter Handle
Tank Cap
Fuel Tank
Throttle Control Assy
FEATURES AND CONTROLS
KNOW YOUR ENGINE
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Know your Engine
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CONTROLS
The engine switch enables and
disables the ignition system.
The engine switch must be in the
ON position for the engine to run.
Turning the engine switch to the
OFF position stops the engine.
The choke lever opens and closes
the choke valve in the carburetor.
Pulling the starter grip operates the recoil starter to crank the
engine.
Set lever “CLOSE” for starting a
cold engine.
After starting, set the choke lever
to “OPEN” position.
ENGINE SWITCH
CHOKE LEVER
RECOIL STARTER GRIP
Caution!
Don’t let the lever suddenly rebound, lightly put the
lever back.
Caution!
If the engine will not start or automatically stops
during operation, first check the engine oil and fuel
levels.
The engine switch
OFF
ON
Choke lever
Close
Open
Figure 1
RECOIL START
Starter Grip
Adjust the throttle lever position to
get required speed.
For proper engine speed, refer to
indication provided by equipment.
The oil protection system will stop engine operation if oil levels fall
below a safe operating level This will prevent engine damage from
occurring. To regain engine operation, ll the oil crankcase up to a safe
operating level indicated on the oil dipstick.
GOVERNOR LEVER
OIL PROTECTION SYSTEM (OPTIONAL)
Throttle lever
High Low
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Controls
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Notice:
Your engine is shipped from YARDMAX without oil.
Add oil per the instructions before starting.
For your safety, and to maximize the service life of your
equipment, it is very important to take a few moments before you
operate the engine to check its condition. Be sure to take care
of any problem you nd, or have your servicing dealer correct it,
before you operate the engine.
Before beginning your preoperation checks, be sure the engine is
level and the engine key has been removed.
1. Check the General Condition of the Engine
Look around and underneath the engine for signs of oil or
gasoline leaks.
Remove any excessive dirt or debris, especially around the
mufer and recoil starter.
Look for signs of damage.
Check that all shields and covers are in place, and all nuts, bolts,
and screws are tightened.
2. Check Oil (See Figure 2)
1) Remove the oil dipstick and clean off with a towel.
2) Re-insert the oil dipstick and check the oil level without
screwing it down.
3) If the oil is too low, add enough oil to reach the high area of
the upper limit zone.
4) Reinstall and tighten oil dipstick back on the engine.
CHECK BEFORE OPERATION
IS YOUR ENGINE READY TO GO?
Warning!
Improperly maintaining this engine, or failing to
correct a problem before operation, could cause a
malfunction in which you could be seriously injured.
Warning!
Always perform a preoperation inspection before
each operation, and correct any problem.
Caution!
Always check the engine oil on a level surface.
CHECK BEFORE OPERATION
Figure 3
3. Check before Operation
Check that the spark plug, mufer, fuel cap, and air cleaner (if
equipped) are clean and secured in place.
If the spark plug is unplugged or removed do not crank the
engine.
CHECK FUEL (See Figure 3)
Turn engine off, open the fuel cap and check the fuel level. If the
fuel level is to low, add fuel until full. When the unit has been
filled completely, replace the fuel cap and tighten the fuel cap
clockwise.
Refuel in a well-ventilated area before starting the engine. If the
engine has been running, allow it to cool. Refuel carefully to avoid
spilling fuel. Don’t add the fuel over the shoulder of the Fuel Tank
(maximum fuel level).
Never refuel the engine inside a building where gasoline fumes
may reach ames or sparks. Keep gasoline away from appliance
pilot lights, barbecues, electric appliances, power tools, etc.
Spilled fuel is not only a fire hazard, it causes environmental
damage. Wipe up spills immediately.
Notice:
Running the engine with a low oil level can cause
engine damage, so always check the engine oil level
before startup.
Figure 2
Oil Dipstick Lower Limit
Upper Limit
Fuel tank volume: 1.6 L
Maximum fuel oil level
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Check before Operation
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Figure 4
Figure 5
Review the instructions provided with the equipment powered
by this engine for any precautions and procedures that should be
followed before engine startup.
Remove the air cleaner housing and check the element, if the
element is dirty, remove and clean. If the element is damaged,
replace entire element.
To start a cold engine, move
the choke lever to the CLOSE
position.
To start a warm engine, turn
the choke lever to the OPEN
position.
Pull the starter grip lightly until you feel resistance, then pull
briskly. (See Figure 5)
If the choke lever has been
moved to the CLOSE position
to start the engine, gradually
move it to the OPEN position
as the engine warms up.
Only use unleaded gasoline with an octane rating over 90. This
will help eliminate carbon deposits and extended the service life
of the engine. Do not use gasoline mixed with oil or contaminated
with dirt or water.
CHECK THE EQUIPMENT POWERED BY THIS ENGINE
CHECK AIR CLEANER (See Figure 4)
STARTING ENGINE
Nut M6
Air Cleaner Elbow
Support Plate
Element
Cover Screw
OPERATION
Choke lever
Close
Open
Turn the engine switch to the
ON position.
Move the throttle lever away from the LOW position, about 1/3
of the way toward the HIGH position.
The engine switch
ON
Governor lever
1.
4.
5.
2.
3.
Starter Grip
Caution!
Don’t let starting lever suddenly rebound, and lightly
put the lever back.
Choke lever
Open
To stop the engine in an emergency, simply turn the engine switch
to the OFF position. Under normal conditions, use the following
procedure.
STOPPING THE ENGINE
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Operation
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Move the throttle lever to the
LOW position
Turn the engine switch to the
OFF position.
2.1.
Throttle lever
High Low
The engine switch
OFF
MAINTENANCE
MAINTENANCE SCHEDULE
(1) Service more frequently when used in dusty areas.
(2) These items should be serviced by your servicing dealer unless you have the proper tools and are mechanically procient.
REGULAR SERVICE PERIOD Each use First month
or 20 Hrs.
Every 3
months or
50 Hrs.
Every 6
months or
100 Hrs.
Every year
or
150 Hrs.
Engine oil
Check level
Change
Air cleaner
Check
Clean (1)
Replace (2)
Sediment Cup Clean
Spark plug Clean Replace
Valve clearance Check-Adjust (2)
Cover comp head Clean After every 300 Hrs. (2)
Fuel tank and fuel lter Clean Every 2 years (Replace if necessary) (2)
Fuel line Check Every 2 years (Replace if necessary) (2)
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Operation & Maintenance
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