YARDMAX YT4565 User manual

Save This Manual for Future Reference
Tame the Great OutdoorsTM
Dual Rotating Rear Tine Tiller
Operator’s Manual
FOR YOUR SAFETY
READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE
MODEL NUMBER
YT4565
SERIAL NUMBER
PURCHASE DATE
Both model number and serial
number may be found on the
main label (see Page 2, Figure 1).
You should record both of them
in a safe place for future use.
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TABLE OF CONTENTS
Your new YARDMAX™ dual rotating rear tine tiller offers
quality construction, and is easy and safe to operate.
With proper use and care, it is designed to give you many
years of dependable service.
Take on any job with ease, portability, and convenience
while experiencing the durability of your new rear tine
tiller!
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 1
Specications 3
Symbols 4
Safety 5
Unpacking the Container 6
Contents Supplied 7
Assembly 8
Know Your Machine 10
Operation 12
Maintenance 15
Storage 17
Troubleshooting 17
Parts Diagram 19
Parts List 21
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Introduction
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Carefully read through this entire operator's manual
before using your new unit. Pay attention to all
cautions and warnings.
MODEL AND SERIAL NUMBERS
For future reference, record both the model number
(see Figure 1, Illustration a) and the serial number (see
Figure 1, Illustration b), as well as date and place of
purchase. Have this information available when ordering
parts, optional accessories and when making technical or
warranty inquiries.
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.
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.
This machine is a gasoline engine driven rear tine tiller. It
is a durable, versatile and efcient machine, and it is both
easy and safe to operate. With proper use and care, it
should give you many years of dependable service.
ENGINE MANUAL
The Engine Manufacturer is responsible for all engine-
related issues regarding performance, power rating,
specifications, warranty and service. Please refer to
the Engine Manufacturer’s owner/operator’s manual,
packed separately with your unit, for more information.
EMISSION CONTROL SYSTEM
This equipment or its engine may include exhaust and
evaporative emission control system components
required to meet U.S. Environmental Protection Agency
(EPA) and/or California Air Resources Board (CARB)
regulations. Tampering with emission controls and
components by unauthorized personnel may result
in severe fines or penalties. Emission controls and
components can only be adjusted by an authorized
engine manufacturer's service center.
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust, some of its constituents, and certain
product components contain or emit chemicals known to
the state of California to cause cancer and birth defects
or other reproductive harm.
Illustration b
Illustration a
YT4565
Engine Displacement:
Transmission:
Speeds:
Tire Size
Tine RPM:
Tilling Width:
Tilling Depth:
Weight:
Manufactured in China
208 cc
Chain Gear
1 F +1 R
13" × 5"
190 RPM
18”
6.5”
199 lbs
Dual Rotating Rear Tine Tiller
Manufacture Date:
11~201~10
2017 2018 2019
1 2 3 4 5 6
7 8 9 10 11 12
21~30
Model Number
4565100010117
Serial Number
2
Dual Rotating Rear Tine Tiller
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Operator’s Manual
YT4565PM02 - 1704 Introduction
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Figure 1
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SPECIFICATIONS
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.
Model Number YT4565
Engine Briggs & Stratton
Displacement 208 cc
Start Type Recoil
Fuel Tank Size .75 gal
Transmission Chain Gear
Speeds 1 Forward / 1 Reverse
Tire Size 13" × 5"
Tines 10 Tiller, 2 Hammer
Tine Direction Dual Rotation
Tine Diameter 13"
Depth Adjustments 7 Positions
Tine RPM 190 RPM
Tilling Width 18"
Tilling Depth 6.5"
Product Weight 205 lbs
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Introduction & Specications
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SYMBOLS
The rating plate on your machine may show symbols. These represent important information about the product or instructions on its use.
Read these instructions carefully.
Wear eye protection.
Wear hearing protection.
Wear protective gloves.
Wear safety footwear.
Do not remove or tamper with the
protection and safety devices.
No smoking, sparks, or ames.
Do not touch parts that are hot from
operation. Serious burns may result.
Keep your feets clear from all rotating
parts.
Be aware, objects may be thrown while
in use.
Keep children and bystanders off and
away.
SAFETY
GENERAL SAFETY RULES
UNDERSTAND YOUR MACHINE
Read this manual and labels afxed to the machine to understand
its limitations and potential hazards.
Be thoroughly familiar with the controls and their proper
operation. Know how to stop the machine and disengage the
controls quickly.
Make sure to read and understand all the instructions and safety
precautions as outlined in the Engine Manufacturer’s manual
packed separately with your unit. Do not attempt to operate the
machine until you fully understand how to properly operate and
maintain the engine and konw how to avoid accidental injuries
and/or property damage.
If the unit is to be used by someone other than original purchaser,
or is to be loaned, rented, or sold, always provide this manual
and any needed safety training before operation. The user can
prevent and is responsible for accidents or injuries that may occur
to themselves, to other people, or to property.
Do not force the machine beyond its limits. Use the correct
machine for your application.
PERSONAL SAFETY
Do not permit children to operate this machine at any time.
Keep children, pets, and other people not using the unit away
from the work area. Be alert and shut off the unit if anyone enters
work area. Keep children under the watchful care of a responsible
adult.
Do not operate the machine while under the inuence of drugs,
alcohol, or any medication that could affect your ability to use it
properly.
Dress properly: Wear long, heavy pants, work boots, and work
gloves. Do not wear loose clothing, short pants, or jewelry of any
kind. Secure long hair so it is above shoulder level. Keep your
hair, clothing, and gloves away from moving parts. Loose clothes,
jewelry, or long hair can be caught in moving parts.
Protect eyes, face, and head from objects that may be thrown
from the unit. Always wear safety goggles or safety glasses with
side shields when operating.
Wear appropriate hearing protection.
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Always keep hands and feet away from all moving parts during
operation. Moving parts can cut or crush body parts.
Always keep hands and feet away from all pinch points.
Do not touch parts that might be hot from operation. Allow parts
to cool before attempting to maintain, adjust, or service.
Stay alert, watch what you are doing, and use common sense
when operating the machine.
Do not overreach. Do not operate the machine while barefoot
or when wearing sandals or similar lightweight footwear. Wear
protective footwear that will protect your feet and improve
your footing on slippery surfaces. Keep proper footing and
balance at all times. This enables better control of the machine in
unexpected situations.
INSPECT YOUR MACHINE
Check your machine before starting it. Keep guards in place and
in working order. Make sure all nuts, bolts, etc., are securely
tightened.
Never operate the machine when it is in need of repair or is in
poor mechanical condition. Replace damaged, missing, or failed
parts before using it. Check for fuel leaks. Keep the machine in
safe working condition.
Do not use the machine if the engine’s switch does not turn off
the engine when running. Any gasoline powered machine that
can’t be controlled with the engine switch is dangerous and must
be replaced.
Regularly check to see that keys and adjusting wrenches are
removed from the machine area before starting it. A wrench or
a key that is left attached to a rotating part of the machine may
result in personal injury.
Avoid accidental starting. Be sure the engine’s switch is off before
transporting the machine or performing any maintenance or
service on the unit. Transporting or performing maintenance or
service on a machine with its switch on invites accidents.
If the machine should start to vibrate abnormally, stop the
engine (motor) and check immediately for the cause. Vibration is
generally a warning sign of trouble.
ENGINE SAFETY
This machine is equipped with an internal combustion engine. Do
not use on, or near, forest-covered or brush-covered land unless
the exhaust system is equipped with a spark arrester meeting
applicable local, state, or federal laws.
In the state of California, a spark arrester is required by law.
Other states have similar laws. A spark arrester, if used, must be
maintained in effective working order by the operator.
Never start or run the engine inside a closed area. The exhaust
fumes are dangerous, containing carbon monoxide, an odorless
and deadly gas. Operate this unit only in a well-ventilated
outdoor area.
Do not tamper with the engine in an effort to get it to run at
higher speeds. The maximum engine speed is preset by the
manufacturer and is within safety limits. See engine manual.
Keep a Class B fire extinguisher on hand when operating this
machine in dry areas as a precautionary measure.
FUEL SAFETY
Fuel is highly flammable, and its vapors can explode if ignited.
Take precautions when using to reduce the chance of serious
personal injury.
When refilling or draining the fuel tank, use an approved fuel
storage container while in a clean, well-ventilated outdoor area.
While adding fuel or operating the unit, do not smoke, and stay
away from sparks, open ames, or other sources of ignition near
the area of operation. Never ll the fuel tank indoors.
To avoid sparking or arcing, keep grounded conductive objects
– such as tools – away from exposed, live electrical parts and
connections. These events could ignite fumes or vapors.
Always stop the engine and allow it to cool before lling the fuel
tank. Never remove the cap of the fuel tank or add fuel while the
engine is running or when the engine is hot. Do not operate the
machine with known leaks in the fuel system.
Loosen the fuel tank cap slowly to relieve any pressure in the tank.
Never overll the fuel tank. Because engine heat can cause fuel to
expand, never ll the tank to more than 1/2” below the bottom of
the ller neck. This will provide space for fuel expansion.
Replace all fuel tank and container caps securely and wipe up
spilled fuel. Never operate the unit without the fuel cap securely
in place.
Avoid creating a source of ignition for spilled fuel. If fuel is spilled,
do not attempt to start the engine. Instead, move the machine
away from the area of spillage and avoid creating any source of
ignition until fuel vapors have dissipated.
When fuel is spilled on yourself or your clothes, wash your skin
and change clothes immediately.
Store fuel in containers specifically designed and approved for
fuel storage.
Store fuel in a cool, well-ventilated area, safely away from sparks,
open ames, or other sources of ignition.
Never store fuel – or a machine with fuel in the tank – inside a
building where fumes may reach a spark, open ame, or any other
source of ignition (such as a water heater, furnace, or clothes
dryer). Allow the engine to cool before storing in any enclosure.
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Safety
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1 2 3
SPECIFIC SAFETY RULES
Thoroughly inspect the area to be tilled, and remove all debris
and hard or sharp objects such as stones, sticks, glass, wire, bones,
etc. Do not operate tiller in soil with large rocks and foreign
objects which can damage the machine.
Do not till above underground electric cables, telephone lines,
water lines, gas lines, pipes, or hoses. If in doubt, contact your
utility or telephone company to locate underground services.
Keep all bystanders, children, and pets at least 75 feet (23m)
away. If you are approached, stop the unit immediately.
This unit has a clutch. Squeeze the drive control handle lever and
check that it returns automatically to the neutral position. If it
does not, have unit adjusted by a qualied repair personnel.
Disengage drive control handle lever before starting the engine.
Start the engine carefully according to instructions and with feet
well away from the tines.
The tines remain stationary when the clutch is disengaged. If it
does not, have unit adjusted by a qualied repair personnel.
Always operate the machine from behind, never pass or stand in
front of the machine when the engine is running.
Always hold the unit with both hands when operating. Keep a rm
grip on the grips. Be aware that the machine may unexpectedly
bounce upward or jump forward if the tines should strike buried
obstacles such as large stones, roots, or stumps.
If the unit strikes a foreign object, stop the engine, disconnect the
spark plug, thoroughly inspect the machine for any damage, and
repair the damage before restarting and operating the machine.
Use extreme caution when in reverse or pulling the machine
towards you.
Do not overload the machine capacity by tilling too deep in a
single pass or at too fast a rate.
Never operate the tiller at high transport speeds on hard or
slippery surfaces.
Be careful when tilling in hard ground. The tines may catch in the
ground and propel the tiller forward. If this occurs, let go of the
handlebars and do not restrain the machine.
Use caution when tilling near fences, buildings and underground
utilities. Rotating tines can cause property damage or personal
injury.
Exercise extreme caution when operating on or crossing gravel
drives, walks, or roads. Stay alert for hidden hazards or trafc. Do
not carry passengers.
Never leave the operating position when the engine is running.
Always stop the engine when tilling is delayed or when walking
from one tilling location to another.
Keep unit clean of vegetation and other materials. They
may become lodged between the tines. Stop the engine and
disconnect the spark plug before unclogging the tines.
To reduce exposure to vibration, limit the hours of operation
and take periodic breaks to minimize repetition and rest your
hands. Reduce the speed and force in which you do the repetitive
movement. Try to ll each day with jobs where operating hand-
held power equipment is not required.
UNPACKING THE CONTAINER
Figure 1
Use scissors or a knife to cut all the straps. Lift off the carton and dispose of properly. (See Figure 1)
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Dual Rotating Rear Tine Tiller
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YT4565PM02 - 1704 Unpacking the Container
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1. Main Machine
2. Operation Handle
3. Shift Rod
4. Depth Stake
5. Operator's Manual & Engine Manual
6. Tools for Spark Plug Assembly
CONTENTS SUPPLIED
Your YARDMAX rear tine tiller comes partially assembled and contains the following:
TOUCH-UP PAINT
Orange × 1 4
Light Gray × 1
HARDWARE KIT
7
6
5
2
4
3
1
× 2 1
M8 × 25 × 1 2
× 1 3
7. Hardware Kit, Including:
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Contents Supplied
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2
M8×75 (×2)
Guide Bracket
1
Upper Handle
This rear tine tiller was partially assembled at the factory. To assemble your machine follow the below instructions.
ASSEMBLY
OPERATION HANDLE
THROTTLE CONTROL
SHIFT LEVER
The M8×75 bolts and nuts have been xed in the guide bracket for
shipping. First, remove the M8x75 bolts and nuts from the guide
bracket.
Then, align the holes in the operation handle shaft with the holes
in the guide bracket and re-insert the M8x75 bolts and screw nuts
to tighten. (See Figure 2)
The M6×60 bolt and nut have been xed in the throttle for
shipping. First, remove the M6×60 bolt and nut from the throttle.
Then, align the hole in throttle control and the hole in the upper
handle. (See Figure 4) Insert the M6×60 bolt and screw the nut to
tighten. Pay attention to the degree of tightness, and make sure
the throttle lever can be moved normally.
1. Insert Lower end of shift rod into hole of shift lever indicator.
Fasten with bridge clip and washer. (see Figure 3, Illustration 1)
2. Insert the upper end of shift rod into hole of shift lever. Fasten
with bridge clip and washer. (see Figure 3, Illustration 2)
× 2 1
Figure 2
Figure 3
Figure 4
2
1
Shift Lever
Shift Rod
Shift Lever Indicator
17 mm
18 mm
30 mm
13 mm
11 mm
× 2
12 mm
10 mm
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Unlock Position
Lock Position Mounting Slot
Plastic Screw
Head
M8×25 (×1)
3
5
2
1
4
Pin Lever
Bolt Hole
Limiter
Rubber Cap
Spring Washer
DEPTH STAKE
HEIGHT LIMITER
1. Hold the machine leaning forward. (see Figure 5a, Illustration 1)
2. Pull the pin lever to unlock position. (see Figure 5a, Illustration 2)
3. Insert the depth stake into the slot in the blade cover. (see
Figure 5a, Illustration 3)
4. Release the pin into the fourth hole of depth stake. At the same
time, switch the pin lever to the lock position. (see Figure 5a,
Illustration 4)
5. Fasten the M8×25 bolt, washer and plastic screw head into
the rst hole of depth stake. Hold the plastic screw head in
place with pliers while screwing the bolt in. (see Figure 5a,
Illustration 5)
6. Adjust the depth stake to the desired depth of tilling. (See
Figure 5b)
Screw the spring washer, limiter and rubber cap into the bolt hole
in the back of blade cover. Hold the bolt hole in place with 13mm
wrench while fastening the limiter bolt in with 10mm wrench. (See
Figure 6)
M8 × 25 × 1 2
× 1 3
Figure 5a
Figure 5b
Figure 6
Limiter
Shallowest Tilling
Transport Position
Deepest Tilling
17 mm
18 mm
30 mm
13 mm
11 mm
12 mm
10 mm
17 mm
18 mm
30 mm
13 mm
11 mm
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Assembly
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KNOW YOUR MACHINE
FEATURES AND CONTROLS
Recoil Starter Handle
Choke Control
Fuel Shut-Off Valve
Throttle Control
Outer Side Shield
Leveling Shield
Operation Handle
Tines
Throttle Control
Shift Lever
Drive Control Bar
Handle Height Adjustment
Drag Bar
Depth Stake
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DRIVE CONTROL BAR
Used to engage tines and/or traction drive.
HANDLE HEIGHT ADJUSTMENT LEVER
Unscrew this lever, move the handle up or down.
Fasten the lever.
DRAG BAR
Assists with overall balance while tilling in all conditions.
DEPTH STAKE
Controls depth at which tiller will dig.
LEVELING SHIELD
Levels tilled Soil.
OUTER SIDE SHIELD
Adjustable to protect small plants from being buried.
RECOIL STARTER HANDLE
The Recoil Starter Handle is used to start the engine.
FUEL SHUT-OFF VALVE
The fuel shut – off has two position.
CLOSED ( ) - use this position to service, transport,
or store the unit.
OPEN ( ) - use this position to run the unit.
THROTTLE CONTROL
The throttle control regulates the speed of the
engine, and moves between FAST , SLOW
, and STOP positions. When the throttle
control is moved to the STOP position, the
engine will STOP.
CHOKE CONTROL
The choke control is used to choke the carburetor and
assist in starting the engine. The choke control slides
between the CHOKE CLOSED and CHOKE OPEN
positions.
SHIFT LEVER
The shift lever has 5 positions: 3 for transport only (no tine
rotation) and 2 for operating the tines in forward (F) or
reverse (R): .
Moving the shift lever to the far left "F" position will
cause the tines to rotate clockwise ( ) when
you engage the drive control bar. This position is for
tilling soft ground or pre-tilled soil.
Moving the shift lever to the far left "R" position will
cause the tines to rotate counter-clockwise ( )
when you engage the drive control bar. This position
is for tilling hard ground.
FORWARD (F) - Move the shift lever indicator to "F"
position. Engage the drive control bar and tiller will
move forward.
REVERSE (R) - Move the shift lever indicator to "R"
position. Engage the drive control bar and tiller will
move backward.
NEUTRAL (N) - Release the control bar to stop
movement, then move the shift lever indicator to "N"
position.
Always release the drive control lever before moving
shift lever to another position. Failure to do so will
result in damage to the rear tine tiller.
The operation handle is for steering your tiller, and
also is where you will nd the Drive Control Bar, the
Throttle Control, and the Handle Height Adjustment
lever.
OPERATION HANDLE
TRANSPORT ONLY
TINE
ROTATION
FORWARD REVERSE
FORWARD DRIVE
GEAR
SELECTION
TINE/ TRACTION
DRIVE HANDLE
HEIGHT
ADJUSTMENT
Never use choke to stop engine.
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Know Your Machine
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OPERATION
1. Make sure the rear tine tiller is on a at, level surface.
ADD OIL TO ENGINE
3. Using a funnel, add oil up to the FULL mark on the dipstick.
(See engine manual for oil capacity, oil recommendation, and
location of ll cap.)
The engine is shipped without oil. Do not start the
engine before adding oil. Refer to your engine manual
for the proper oil gauge to use.
Gasoline is highly ammable and explosive. You can
be burned or seriously injured when handling fuel.
Use extreme care when handling gasoline.
Fill the fuel tank outdoors, never indoors. Gasoline
vapors can ignite if they collect inside an enclosure.
Explosion can result.
IMPORTANT: DO NOT OVERFILL!
This equipment and/or its engine may include
evaporative emissions control system components,
required to meet EPA and/or CARB regulations, that
will only function properly when the fuel tank has
been filled to the recommended level. Overfilling
may cause permanent damage to evaporative
emissions control system components. Filling to the
recommended level ensures a vapor gap required to
allow for fuel expansion. Pay close attention while
lling the fuel tank to ensure that the recommended
fuel level inside the tank is not exceeded. Use a
portable gasoline container with an appropriately
sized dispensing spout when lling the tank. Do not
use a funnel or other device that obstructs the view
of the tank lling process.
DO NOT OVERFILL. Check engine oil level daily and
add as needed.
1. The engine must be off and allowed to cool at least two minutes
before adding fuel.
2. Remove the fuel ller cap and ll the tank. (See engine manual
for fuel capacity, fuel recommendation, and location of fuel cap.)
ADD GASOLINE TO ENGINE
2. Remove the oil ll cap/dipstick
to add oil.
CLOSEDOPEN
3. Reinstall the fuel cap and tighten. Always clean up spilled fuel.
If the engine is hot,
closing the choke is not
necessary.
STARTING ENGINE
1. Open the fuel shut-off valve.
2. Move the choke lever to the
CLOSED position.
SLOWFAST
OPENCLOSED
ONOFF
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YT4565PM02 - 1704 Operation
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1. Move the engine switch to the
ON position.
ONOFF
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Do not stand directly behind tiller.
Rapid retraction of the starter cord (kickback) will pull your
handand arm toward the engine faster than you can let go.
Broken bones, fractures, bruises, or sprains could result.
4. Pull the recoil starter until the engine starts. Return the recoil
to the home position after each pull. Repeat the steps as
needed. Once engine has started, set the throttle to the FAST
position before you operate the unit.
TINE OPERATION - SHIFT LEVER
• Always release drive control bar before moving shift lever into
another position.
• Tine movement is achieved by moving shift lever to either the
counter rotating till position ( ) or the forward rotating
till position ( ) and engaging drive control bar.
FORWARD - WHEELS ONLY/TINES STOPPED
• Release drive control bar and move shift lever indicator to
“F” (forward) position. Engage drive control bar and tiller
will move forward.
REVERSE - WHEELS ONLY/TINES STOPPED
• Release the drive control bar.
• Move throttle control to “SLOW” position.
• Move shift lever indicator to “R” (reverse) position.
• Hold drive control bar against the handle and tiller will move backward.
If you nd the shift lever difcult to move or nd it hard to shift
gears, try one of the following:
• Briey engage the drive control bar, and release, or
• Rock the tiller forward and backward using the handles
DEPTH STAKE
The depth stake (see Figure 7) can be raised or lowered to allow
you more versatile tilling and cultivating, or to more easily
transport your tiller.
Figure 7
Limiter
Depth Stake Pin Lever
Deepest Tilling
Shallowest Tilling
Transport Position
DRAG BAR
The drag stake (see Figure 8) should be raised when tilling in the
counter rotating ( ) till position. The drag stake should be
lowered when tilling in the forward rotating ( ) till position.
TILLING
Tilling is digging in, turning over and breaking up garden soil and
prepare a seedbed for planting. Best tilling depth is 4” (100mm) to
6” (150mm). A tiller will also clear the soil of unwanted vegetation.
The decomposition of this vegetation matter enriches the soil.
Avoid tilling soil that is too dry as it will pulverize and produce a
dust that will not hold water. Water a few days before tilling. Also,
tilling soil that is too wet will produce unsatisfactory clods. Wait a
day or two after heavy rain for the soil to dry.
Better growth will be obtained if an area is tilled properly and
used soon after tilling to preserve the moisture content.
Lowered Position
Raised Position
Figure 8
Drag Bar Pin Lever
3. Move the throttle control
lever slightly forward to about
¼ of the way (slightly toward
the fast position).
Throttle Control Lever
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Operation
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TURNING
• Release the drive control bar.
• Move throttle control to “SLOW” position.
• Place shift lever indicator in “F” (forward) position. Tines will
not turn.
• Lift handle to raise tines out of ground.
• Swing the handle in the opposite direction you wish to turn,
being careful to keep feet and legs away from tines.
• When you have completed your turn-around, release the drive
control bar and lower handle. Place shift lever in (till) position
and move throttle control to desired speed. To begin tilling,
hold drive control bar against the handle.
CULTIVATING
Cultivating is loosening or digging around growing plants to disrupt
weeds and aerate soil. Less than 2” (50mm) depth is always desirable.
• Place shift lever indicator in forward rotating ( ) till
position when cultivating soft ground or tilling pre-tilled soil.
• Move both the depth stake pin lever and the drag stake pin
lever to the unlock position (See Figure 5a, Illustration 2 &
Figure 8). Hold the depth stake limiter to pull the depth stake
Figure 9
IMPORTANT: Always release drive control bar before
moving shift lever into another position.
STOPPING THE TINES AND DRIVE
• Release drive control bar to stop movement.
• Move shift lever to “N” (neutral) position.
TRANSPORT AROUND THE YARD
CAUTION: Before lifting or transporting, allow tiller
engine and mufer to cool. Disconnect spark plug
wire. Drain gasoline from fuel tank.
• Release the depth stake pin. Move the depth stake down to the
second top hole for transporting the tiller. Place depth stake
pin in hole of depth stake to lock in position. This prevents
tines from scufng the ground.
• Place shift lever indicator in “F” (forward) position for transporting.
• Hold the drive control bar against the handle to start tiller
movement. Tines will not turn.
• Move throttle control to desired speed.
Nut A
Nut B
Outer Side Shields
The type of soil and working conditions will determine the actual
setting of the tilling depth. In some soils, the desired depth is
reached rst pass over garden. In other soils, the desired depth
is obtained by going over the garden two or three times. In later
case, the depth regulator rod should be lowered before each
succeeding pass over the garden. Passes should be made across
the length and width of the garden alternately. Do not try to dig
too deeply in the rst pass. If the machine jumps or bucks, allow
the unit to move forward at a lightly faster rate.
If the tiller stops forward motion and tries to dig in one spot, rock
the handles from side to side to start it moving forward again.
Rocks which are turned up should be removed from the garden area.
• Move the depth stake pin lever to the unlock position (See Figure
5a, Illustration 2). Hold the depth stake limiter to pull the depth
stake up for increasing tilling depth. Place depth stake pin in the
hole of the depth stake to lock in position at desired depth.
• Place shift lever indicator in counter rotating ( ) till
position when tilling hard soil.
• Hold the drive control bar against the handle to start tilling
movement. Tines and wheels will both turn.
• Move throttle control to “FAST” position for deep tilling. To
cultivate, throttle control can be set at any desired speed,
depending on how fast or slow you wish to cultivate.
up for increasing tilling depth. Place depth stake pin in the hole
of the depth stake to lock in position at desired depth. Lower
drag stake to the “Lowered position” (See Figure 8) and lock it
in position.
• Hold the drive control bar against the handle to start cultivating
movement. Tines and wheels will both turn.
• Move the throttle control to the fast position for deep cultivating.
To cultivate, throttle control can be set at any desired speed,
depending on how fast or slow you wish to cultivate.
• Always lower the drag stake when using the forward rotating
tine drive.
OUTER SIDE SHIELDS
To protect small plants from being buried while tilling, the back
edges of the outer side shields are slotted so that the shields
can be raised for deep tilling and lowered for shallow tilling. (See
Figure 9) To move the shield to the desired position (both sides),
Loosen Nut A and Nut B, move the shield, and retighten the nuts.
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Dual Rotating Rear Tine Tiller
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Never use a “pressure washer” to clean your unit.
Water can penetrate tight areas of the machine and
its transmission case and cause damage to spindles,
gears, bearings, or the engine. The use of pressure
washers will result in shortened life and reduce
serviceability.
GEARBOX
The gearbox was lled with lubricant to the proper level at the
factory. Unless there is evidence of leakage or service has been
performed on the gearbox, no additional lubricant should be
required.
GENERAL LUBRICATION
Lightly lubricate all moving parts of the machine at the end of the
season or every 25 operating hours.
MAINTENANCE
Maintaining your YARDMAX rear tine tiller will ensure long life to
the machine and its components.
PREVENTIVE MAINTENANCE
1. Turn off the engine and disengage all command levers. The
engine must be cool.
2. Keep the engine’s throttle lever in its SLOW position and
remove the spark plug wire from the spark plug and secure.
3. Inspect the general condition of the rear tine tiller. Check
for loose screws, misalignment or binding of moving parts,
cracked or broken parts, and any other condition that may
affect its safe operation.
4. Use a soft brush, vacuum or compressed air to remove all
contaminants from the machine. Then use high quality light oil
to lubricate all moving parts.
5. Replace the spark plug wire.
Figure 10
Jam Nut
Adjustment Nut
Adjustment Nut
LOOSEN
TIGHTEN
1
32
Jam Nut
Jam Nut
8 mm
6 mm
8 mm
6 mm
ADJUSTING CLUTCH
If clutch becomes difcult to engage follow these
steps to adjust the cable tension.
1. Loosen the jam nut by turning it counter clockwise with
8mm wrench while holding the adjustment nut in place
with 6mm wrench. (see Figure 10, Illustration 1)
2. Tighten (or loosen) the cable by turning the cable
adjustment nut clockwise (or counter clockwise) with
a 6mm wrench until you have reached your desired
tightness. (see Figure 10, Illustration 2)
3. Once you have reached your desired cable tightness,
tighten the jam nut by turning it clockwise until it is
tight. (see Figure 10 Illustration 3)
IDLE SPEED
Set the throttle control lever to the SLOW position to reduce
stress on the engine when work is not being performed. Lowering
the engine speed will help extend the life of the engine, as well as
conserve fuel and reduce noise level.
STOP ENGINE
To stop the engine in an emergency, simply turn the engine switch
to the OFF position. Under normal conditions, use the following
procedure:
1. Move the throttle lever to the SLOW ( ) position.
2. Let the engine idle for one or two minutes.
3. Turn the engine switch to the OFF position.
4. Turn the fuel valve lever to the OFF ( ) position.
Do not move the choke control to CLOSE to stop the
engine. Backre or engine damage may occur.
Sudden stopping at a high speed under a heavy load
is not recommended. Engine damage may result.
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Operation & Maintenance
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2
Bolt (×4)
Nut (×1)
Belt Guard
5
Engine Pulley
Idler Pulley
Belt Guide
Bracket (×2)
Stud
Belt Roller
3
4
Transmission Pulley
Belt
1 2 2 1
Outer Side Shield
Pin (×2)
Swing Nut (×4)
Figure 11a
Figure 11b
REPLACING THE BELT
1. Securely prop the machine up so that the wheel on the opposite
side of the engine is 1 inch off the work surface. Remove the
shear pin and wheel from belt guard side of the machine,
opposite side of the engine. (see Figure 12a)
2. Remove the 4 bolts and 1 nut on the belt guard to expose the
belt assembly. (See Figure 12b, illustration 2)
3. Slide the belt roller off its stud below the large transmission pulley.
(See Figure 12b, illustration 3)
4. Remove the belt from the engine and idler pulley: Rotate the
transmission pulley and pull the belt gently through the roller
stud while working it free from the pulley. (See Figure 12b,
illustrations 4 & 5)
Figure 12a
Figure 12b
Pin
REPLACING THE TINES
1. Remove the outer side shield.
2. Remove the whole blade assembly.
3. Remove the each tine.
17 mm
18 mm
30 mm
13 mm
11 mm
8mm
16 mm
× 2
5. To install a new belt, repeat the above process in reverse.
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STORAGE
If the rear tine tiller will not be used for a period longer than 30
days, follow the steps below to prepare your unit for storage.
1. Drain the fuel tank completely. Stored fuel containing ethanol
or MTBE can start to go stale in 30 days. Stale fuel has high
gum content and can clog the carburetor and restrict fuel ow.
2. Start the engine and run until it stops. This helps prevent gum
deposits from forming inside the carburetor and possible
engine damage.
3. While the engine is still warm, drain the oil from the engine. Rell
with fresh oil of the grade recommended in the Engine Manual.
4. Use clean cloths to clean off the outside of the machine and to
keep the air vents free of obstructions.
Do not use strong detergents or petroleum based
cleaners when cleaning plastic parts. Chemicals can
damage plastics.
Do not store the machine with fuel in a non-
ventilated area where fuel fumes may reach flame,
sparks, pilot lights or any ignition sources.
5. Inspect for any loose or damaged parts. Repair or replace
damaged parts and tighten loose screws, nuts or bolts.
6. Store your unit on at ground in a clean, dry building that has
good ventilation.
TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start
1. Spark plug wire is disconnected
2. Out of fuel or stale fuel
3. Engine and/or Fuel valve is not in
ON position
4. Choke lever is not in CLOSE position
5. Blocked fuel line
6. Fouled spark plug
7. Engine ooding
8. Belt tension lever is engaged
1. Attach spark plug wire securely to
spark plug
2. Fill with clean, fresh gasoline
3. Engine and Fuel valve must be in ON
position
4. Choke level must be in CLOSE position
for a cold start
5. Clean fuel line
6. Clean, adjust gap, or replace
7. Wait a few minutes to restart, but do
not prime
8. Disengage the belt tension lever
ENGINE MAINTENANCE
For information on engine maintenance, refer to
the Engine Manual included with your unit. Your
engine manual provides detailed information and a
maintenance schedule for performing maintenance
tasks.
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Maintenance & Storage & Troubleshooting
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Problem Cause Remedy
Engine runs erratically
1. Spark plug wire is loose
2. Unit running with Choke lever in
CLOSE position
3. Blocked fuel line or stale fuel
4. Vent plugged
5. Water or dirt in fuel system
6. Dirty air cleaner
7. Improper carburetor adjustment
1. Connect and tighten spark plug wire
2. Move choke lever to OPEN position
3. Clean fuel line. Fill tank with clean,
fresh gasoline
4. Clear vent
5. Drain fuel tank. Rell with fresh fuel
6. Clean or replace air cleaner
7. Refer to engine manual
Engine overheats
1. Engine oil level low
2. Dirty air cleaner
3. Air ow restricted
4. Carburetor not adjusted properly
1. Fill crankcase with proper oil
2. Clean air cleaner
3. Remove housing and clean
4. Refer to engine manual
Engine will not stop
when throttle control
is positioned at stop,
or engine speed does
not increase properly
when throttle control
is adjusted.
1. Debris interfering with throttle
linkage.
2. Improper throttle linkage adjustment
1. Clean dirt and debris.
2. Refer to Engine Manual to check and
adjust throttle linkage.
Tiller moves forward
during starting.
Tine clutch control not in neutral
position.
Tine clutch control lever must be released
to neutral to start the engine.
Tiller is difcult to
control when tilling
(machine jumps or
lurches forward).
1. Improper tilling depth setting.
2. Too high engine speed on hard
ground.
1. Raise the tines for shallower tilling by
raising the depth regulator rod.
2. Set the throttle lever at lower speed.
Tines do not engage.
1. Foreign object lodged in tines.
2. Tine clevis pin(s) missing.
3. Belt worn and/or stretched.
4. Pulley and idler not in correct
adjustment.
1. Stop tiller completely, check and
discard foreign object.
2. Replace tine clevis pin(s).
3. Replace belt.
4. Contact dealer.
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Dual Rotating Rear Tine Tiller
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Operator’s Manual
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PARTS DIAGRAM
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Parts Diagram
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