MRT190H
Owner’s Manual MRT190HC
Place serial number tag here
800-621-2789 RT190H Rev C Page 1
MRT190H
Table of Contents
1 INTRODUCTION ........................................................................................................................................................ 5
1.1 ... Application ............................................................................................................................................................................5
1.2 ... Benefits ....................................................................................................................................................................................5
1.3 ... Navigating This Manual ..................................................................................................................................................5
1.4 ... Warnings and Safety Precautions ..............................................................................................................................5
1.5 ... Operation References/Terminology ..........................................................................................................................7
1.6 ... Control and Adjustment Locations .............................................................................................................................8
1.7 ... Owner Assistance ................................................................................................................................................................8
1.8 ... Model Identification ..........................................................................................................................................................9
1.9 ... Further Assistance .............................................................................................................................................................9
2 SAFETY ......................................................................................................................................................................... 9
2.1 ... General Safety Rules ..........................................................................................................................................................9
2.2 ... PRODUCT-SPECIFIC SAFETY RULES ...................................................................................................................... 11
2.3 ... ENGINE SAFETY PRECAUTIONS .............................................................................................................................. 11
2.4 ... Safety Decals ...................................................................................................................................................................... 14
2.5 ... Training ............................................................................................................................................................................... 15
2.6 ... Preparation ........................................................................................................................................................................ 16
2.7 ... Operation ............................................................................................................................................................................ 16
2.8 ... Storage ................................................................................................................................................................................. 17
3 PARTS BREAKDOWN ........................................................................................................................................... 18
3.1 ... Chaincase Breakdown ...................................................................................................................................................
3.2 ... Tines Breakdown ............................................................................................................................................................. 19
3.3 ... Main Unit Breakdown ................................................................................................................................................... 20
3.4 ... General Information ....................................................................................................................................................... 23
4 ASSEMBLY ................................................................................................................................................................ 23
4.1 ... Final Set-up ........................................................................................................................................................................ 23
5 OPERATING CONTROLS ..................................................................................................................................... 25
5.1 ... To Start Engine ................................................................................................................................................................. 25
6 MACHINE IDENTIFICATION COMPONENTS .............................................................................................. 26
7 OPERATION ............................................................................................................................................................. 26
7.1 ... Drive operation................................................................................................................................................................. 26
18
7.2 ... Tine operation ................................................................................................................................................................... 26
800-621-2789 RT190H Rev C Page 2
MRT190H
7.3 ... Safe operation while tilling ......................................................................................................................................... 27
7.4 ... Depth Bar Stake ............................................................................................................................................................... 27
7.5 ... Turning sharply ................................................................................................................................................................ 28
7.6 ... Tilling .................................................................................................................................................................................... 28
7.7 ... Cultivating .......................................................................................................................................................................... 29
8 Transporting – pushing tiller without engine running/power .......................................................... 30
8.1 ... Hydraulic Pump Lock Out/Release ......................................................................................................................... 30
9 MAINTENANCE AND LUBRICATION ............................................................................................................. 30
9.1 ... Cleaning ............................................................................................................................................................................... 30
9.2 ... Cleaning the Cooling System ...................................................................................................................................... 31
9.3 ... Dual Filter Element Air Cleaner ................................................................................................................................ 31
9.4 ... Engine Oil – 1.16 quart, (38.63 oz).......................................................................................................................... 32
9.5 ... Hydraulic Oil - Capacity is approx. one gallon. .................................................................................................. 33
9.6 ... Tine Chain Case ................................................................................................................................................................ 34
9.7 ... Muffler .................................................................................................................................................................................. 35
9.8 ... Spark Plug ........................................................................................................................................................................... 35
10 Tire Care .................................................................................................................................................................... 35
10.1 . Maintenance Schedule .................................................................................................................................................. 35
11 WARRANTY ............................................................................................................................................................. 36
11.1 . Warranty/Product Registration .............................................................................................................................. 36
800-621-2789 RT190H Rev C Page 3
MRT190H
⚠
READ ENTIRE MANUAL BEFORE ATTEMPTING TO OPERATE MACHINE
⚠
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF
WARNING
If incorrectly used, this machine can cause severe injury. Those who use and maintain this machine
should be trained in its proper use, warned of its dangers, and should read the entire manual before
attempting to set up, operate, adjust, or service this machine.
Read and keep this manual for future reference. This manual contains important information on
SAFETY, ASSEMBLY, OPERATION, AND MAINTENANCE. The owner must be certain that all the product
information is included with the unit. This information includes the MANUAL, the REPLACEMENT
PARTS, and the WARRANTIES. This information must be included to make sure state laws and other
laws are followed. This manual should remain with the product even if it is resold.
WARNING
CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARMS.
IMPORTANT: This unit is equipped with an internal combustion engine and should not be used on or
near any unimproved forest-covered, brush covered, or grass-covered land unless the engine’s exhaust
system is equipped with a spark arrester meeting applicable local laws (if any). If a spark arrester is
used, it should be maintained in effective working order by the operator.
In the state of California, a spark arrester is required by law (section 4442 of the California public
resources code). Other states may have similar laws. Federal laws apply on federal lands. See your
authorized service center for a spark arrester.
800-621-2789 RT190H Rev C Page 4
MRT190H
1 INTRODUCTION
Maxim rear-tine tillers feature heavy gauge steel, hardened steel tines and ruggedly built
Hydrostatic transmission. For additional durability, an extra heavy-duty frame. It is this simple, yet
sturdy design that makes Maxim tillers low maintenance and easy to use.
Please read this entire manual before assembly and use. The manufacturer reserves the right
to change, alter or improve the product and this document at any time without prior notice.
1.1 Application
Tillers in the rental industry must be able to withstand heavy use, rough handling, and
transportation bruises, yet still rent tomorrow. These beefy tillers combine ease
of operation and maintenance to make a tiller worthy of the Maxim name.
1.2 Benefits
• Rear tine tiller operation provides an easier to handle, better tilling operation, especially
in fresh un-tilled ground.
• Hydraulic Transmission provide ease of use, with having infinite variable speed between
high and low operation, also provides increased durability.
• Heavy-duty tines with bolt-on replaceable blades.
• Both Forward and Reverse tine operation for that perfect tilling job.
• Heavy-duty steel wheels with “Bar” type tires.
• Heavy-duty frame for long life.
• Depth bar standard for tilling depth control.
1.3 Navigating This Manual
1. Use this manual to help familiarize yourself with safety, operation, adjustments,
troubleshooting, maintenance, specifications, and warranty information. It is very
important that you read this manual and follow the instructions to ensure safe operation
of the attachment.
2. Please visit www.maximmfg.com
for updated information.
1.4 Warnings and Safety Precautions
The safety of our customers and other’s well-being is very important to us. Using this equipment
is an important responsibility. Safe and effective use of the machine is the owner’s responsibility.
• Read and follow all safety instructions.
• Maintain the machine according to directions and schedule included in this manual.
• Ensure that anyone who uses the machine is familiar with all controls and safety
precautions.
800-621-2789 RT190H Rev C Page 5
MRT190H
⚠
⚠
WARNING INDICATED A HAZARD WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH
⚠
CAUTION INDICATED YOU CAN BE HURT OR YOUR EQUIPMENT DAMAGED IF THE
SPECIAL MESSAGES
Please read all the information carefully to avoid injury and machine damage. This information
alerts you to potential hazards that could hurt you or others.
NOTE: General information is given throughout the manual that may help the operator in the
operation or service of the machine.
You will find important safety information in a variety of forms, including:
1. Safety labels – on the tillers
2. Safety messages – preceded by a safety alert symbol
words: DANGER, WARNING, OR CAUTION.
These signal words mean:
DANGER: You will be killed or seriously injured if you do not follow instructions
DANGER
WARNING: You can be killed or seriously injured if you do not follow instructions.
⚠ and one of the three signal
WARNING
OR SERIOUS INJURY AND/OR PROPERTY DAMAGE
CAUTION: You can be injured if you do not follow instructions.
CAUTION
SAFETY INSTUCTIONS THAT FOLLOW THIS SIGNAL WORD ARE NOT OBEYED.
800-621-2789 RT190H Rev C Page 6
MRT190H
Left
Right
⚠
CALIFONINA PROPOSITION 65 WARNING
⚠
YOU MUST READ, UNDERSTAND AND COMPLY WITH ALL SAFETY AND OPERATING
WARNING
ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS, OR OTHER REPRODUCTIVE HARM.
WARNING
INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO SETUP AND OPERATE YOUR
MACHINE.
FAILURE TO COMPLY WITH ALL SAFETY AND OPERATIING INSTRUCTIONS CAN RESULT IN
LOSS OF MACHINE CONTROL, SERIOUS PERSONAL INJURY TO YOU AND/OR
BYSTANDERS, AND RISK OF EQUIPMENT AND PROPERTY DAMAGE. THE TRIANGLE IN THE
TEXT SIGNIFIES IMPORATNT CAUTIONS OR WARNINGS WHICH MUST BE FOLLOWED
This symbol points out important safety instructions which if not followed could endanger
⚠
your personal safety. Read and follow all instructions in this manual before attempting to
operate this equipment.
BEFORE OPERATING ENGINE:
Please read this section carefully. Read entire operating and maintenance instructions for this
product. Failure to follow instructions could result in serious injury or death. Operate the
machine according to the safety instructions outlined here and inserted throughout the text.
Anyone who uses this machine must read the instructions and be familiar with the controls.
Intended Use / Foreseeable Misuse
IMPORTANT: This is a motorized rotary tiller that works the soil by means of rotating tines. It is
pedestrian-controlled using hand controls that operating both tine rotation forward/directions
and controls that power the entire machine both forward and reverse. It uses a
gasoline-fueled internal combustion engine to power the tines. It shall not be used
for any other purpose.
1.5 Operation References/Terminology
References throughout this manual referred to as “Right” or “Left” are determined
by being face-standing behind tiller and facing the direction the unit will operate
while in use.
800-621-2789 RT190H Rev C Page 7
MRT190H
1.6 Control and Adjustment Locations
Familiarize yourself with the location of various controls and adjustments located on the unit.
1.7 Owner Assistance
Please complete the Warranty/Product Registration at the time of purchase. You will need to
complete the warranty/product registration form (pg. 38) with your new unit, or you may visit our
website www.maximmfg.com
this information so we can keep you updated with any important information about your tiller
and provide you with the best customer service possible.
The parts and components used on your Maxim tiller have been specifically engineered for Maxim
tiller and should only be replaced with Maxim parts. Contact your local Maxim Dealer for OEM
replacement parts or contact our customer service department for assistance in parts, locating
your local servicing dealer and more. Your local dealer is equipped and trained to handle service
and repair for your tiller.
and complete our online product registration form. We require
800-621-2789 RT190H Rev C Page 8
MRT190H
Engine
Tiller Serial Number
under handlebar
1.8 Model Identification
Please fill in your model and serial number below for future reference. This will help assist in
prompt service when ordering parts and service from your local Maxim Dealer.
Tiller Model No.___________________ Tiller Serial No. ______________________________
Engine Model No.__________________ Engine Serial No. _____________________________
Refer to the image below for location of your serial number plate:
1.9 Further Assistance
Your dealer and all of us at Maxim want you to be pleased with
your tiller. Should you require further assistance or have questions regarding your tiller, please
contact your local dealer where you purchased your tiller. If you are unable to satisfy your needs
by your local dealer, please contact us at:
Maxim
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
800-621-2789
www.maximmfg.com
2 SAFETY
2.1 General Safety Rules
• Read, understand, and follow all instructions on the machine and in the manual(s). Be
thoroughly familiar with the controls and proper use of the machine before starting.
• Disengage all controls before starting the engine (motor).
• Use this equipment for its intended purpose only.
• Familiarize yourself with all the safety and operating decals on this equipment and on any
of its attachments or accessories.
• Stop the engine (motor) when leaving the operating position.
• Do not put hands or feet near or under rotating parts.
Serial
Number
800-621-2789 RT190H Rev C Page 9
MRT190H
• Only allow responsible individuals who are familiar with the instructions to operate the
machine. Do not allow children to operate this machine. Do not allow adults to operate
the machine without proper instruction.
• Thoroughly inspect the area where the machine is to be used and remove all foreign
objects. Your equipment can propel small objects at high-speed causing personal injury or
property damage. Stay away from breakable objects, such as house windows,
automobiles, greenhouse, etc.
• Wear appropriate clothing such as sturdy, rough-soled shoes (steel toe recommended)
and close-fitting pants and shirt. Loose fitting clothes or jewelry can be caught in moving
parts. Never wear shorts. Never wear sandals, sneakers, or open shoes, and never
operate the machine with bare feet.
• Do not wear loose clothing or jewelry. They can get caught in moving parts. Always keep
hands, feet, hair, and loose clothing away from any moving parts on engine and machine.
• Always wear safety goggles or safety glasses with side shields when operating the
machine to protect your eyes from foreign objects which can be thrown from the unit.
• Always wear a protective hearing device.
• Always wear work gloves and sturdy rugged soled footwear. Wear footwear that will
improve footing on slippery surfaces. Leather work shoes or short boots work well for
most people. These will protect the operator’s ankles and shins from small sticks,
splinters, and other debris.
• It is advisable to wear protective headgear to prevent the possibility of being struck by
small flying particles, or being struck by low hanging branches, twigs or other objects
which may be unnoticed by the operator.
• Do not operate the machine without proper guards or other safety protective devices in
place.
• Operate only in daylight.
• Do not operate product when fatigued or under the influence of alcohol, drugs or other
medication which can cause drowsiness or affect your ability to operate machine safely.
• Never operate machine in wet grass. Always be sure of your footing; keep a firm hold on
the handle and walk; never run.
• Watch for traffic when operating tiller near, or when crossing roads.
• If the equipment should start to vibrate abnormally, stop the engine (motor), rotate the
ON/OFF switch located on the engine to the OFF position.
• Regularly inspect the machine. Make sure parts are not bent, damaged or loose.
• Temperature of muffler and nearby areas may exceed 150° F (65° C). Allow muffler and
engine areas to cool before touching.
• Prolonged exposure to noise and vibration from gasoline engine-powered equipment
should be avoided. Take intermittent breaks and/or wear ear protection from engine
noise as well as heavy work gloves to reduce vibration in hands.
• Keep all screws, nuts, and bolts tight.
800-621-2789 RT190H Rev C Page 10
MRT190H
⚠
E
⚠
• Do not transport the machine from one place to another with the engine running.
• Always turn off fuel supply valve on engine before transport.
• Check local regulations for age restrictions on use of this machine.
2.2 PRODUCT-SPECIFIC SAFETY RULES
• Do not till above underground utilities, including water lines, gas lines, electric cables, or
pipe. Contact appropriate utility representatives to determine if/where electrical
cables, gas lines, water lines, etc. are buried BEFORE operation.
• Do not operate the machine on terrain/soil with large rocks and foreign objects which can
damage the equipment.
• After striking a foreign object, stop the engine. Rotate the ON/OFF switch located on the
engine to the OFF position. Inspect the machine for damage. If damaged, repair before
starting and operating the machine.
• The tines of the tiller should not rotate when the engine is idling. If they do, contact your
local dealer or Maxim technical service for instruction.
• If an object becomes lodged in the tines, rotate the ON/OFF switch located on the engine
to the OFF position. Allow the machine to cool before attempting to remove the foreign
object.
• Keep the area of operation clear of all persons, particularly small children, and pets.
2.3 ENGINE SAFETY PRECAUTIONS
WARNING
NGINES GIVE OFF CARBON MONOXIDE, AN ODORLESS, COLORLESS, POISONOUS GAS. CARBON MONOXIDE
MAY BE PRESENT EVEN IF YOU DO NOT SMELL OR SEE ANY ENGINE EXHAUST. BREATHING CARBON
MONOXIDE CAN CAUSE NAUSEA
CONFUSION.
IF YOU EXPERIENCE ANY OF THESE SYMPTOMS, SEEK FRESH AIR AND MEDICAL ATTENTION IMMEDIATELY.
, FAINTING OR DEATH, IN ADDITION TO DROWSINESS, DIZZINESS AND
CAUTION
HOT GASES ARE A NORMAL BY-PRODUCT OF A FUNCTIONING INTERNAL COMBUSTION ENGINE. FOLLOW
ALL SAFETY INSTRUCTIONS TO PREVENT BURNS AND FIRES.
DO NOT ALTER/MODIFY ENGINE:
NEVER ALTER OR MODIFY THE ENGINE FROM THE FACTORY. SERIOUS INJURY OR DEATH MAY OCCUR IF
ENGINE IS MODIFIED OR ALTERED.
WHEN WORKING ON OR REPLACING PARTS FOR THE ENGINE OR PRODUCT, YOU MUST ALWAYS FLIP THE
/OFF SWITCH TO THE OFF POSITION.
ON
800-621-2789 RT190H Rev C Page 11
MRT190H
PREVENTING CARBON MONOXIDE POSIONING
• Always start and run engine outdoors. Do not start or run engine in an enclosed area,
even if doors or windows are open.
• Never try to ventilate engine exhaust indoors. Carbon monoxide can reach dangerous
levels very quickly.
• Never run engine outdoors where exhaust fumes may be pulled into a building.
• Never run engine outdoors in a poorly ventilated area where the exhaust fumes may be
trapped and not easily taken away. (Examples include in a large hole or areas where hills
• surround your working area.)
• Never run engine in an enclosed or partially enclosed area. (Examples include buildings
that are enclosed on one or more sides, under tents, car ports or basements.)
• Always run the engine with the exhaust pointed in the direction away from the operator.
• Never point the exhaust towards anyone. People should always be a minimum of ten feet
away from the operation of the engine and its attachments.
• Do not change the engine governor settings or over-speed the engine.
• Stop the engine (motor) when leaving the operating position.
GASOLINE FIRES AND HANDLING FUEL SAFELY
⚠ Warning gasoline is highly flammable and explosive
You can be burned or seriously injured when handling fuel. Use extreme care when handling
gasoline or other fuels. They are flammable and vapors are explosive.
• When storing extra fuel be sure that it is in an appropriate
container and away from any fire hazards.
• Prevent fire and explosion caused by static electric discharge.
Use only nonmetal, portable fuel containers approved by the
Underwriter’s Laboratory (U.L.) or the American Society for
Testing & Materials (ASTM).
• Always fill fuel tank outside in a well-ventilated area. Never fill
fuel tank with fuel indoors. (Examples include basement, garage,
barn, shed, house, porch, etc.) Never fill tank near appliances
with pilot lights, heaters, or other ignition sources. If the fuel
must be drained, this should be done outdoors. The drained fuel should be stored in a
container specifically designed for fuel storage or it should be disposed of carefully.
• Never remove the fuel cap or add fuel with the engine running. Stop engine and allow to
cool before filling.
• Do not smoke while using engine or around fuel.
• Never drain fuel from engine in an enclosed area.
800-621-2789 RT190H Rev C Page 12
MRT190H
• Always wipe up excess (spilled) fuel from engine before starting. Clean up spilled fuel
immediately. If fuel is spilled, do not start the engine but move product and fuel container
from area. Clean up spilled fuel and allow to evaporate and dry after wiping and before
starting.
• Allow fuel fumes/vapors to escape from the air before starting the engine.
• Test the fuel cap for proper installation before starting and using engine.
• Always run the engine with fuel cap properly installed on the engine.
• Never smoke while refilling engine fuel tank.
• Do not store engine with fuel in fuel tank indoors. Fuel and fuel vapors are highly
explosive.
• Never pour fuel from engine fuel tank.
• Never siphon fuel by mouth to drain fuel tank.
• Always have an adult fill the fuel tank and never allow children to fill the engine.
• Never allow anyone under the influence of drugs or alcohol to fill the engine.
• When storing gasoline or equipment with fuel in the tank, store away from furnaces,
stoves, water heaters or other appliances that have a pilot light or other ignition source
because they can ignite gasoline vapors.
BURNS AND FIRES
The muffler, muffler guard and other parts of the engine become extremely hot during the
operation of the engine. These parts remain extremely hot after the engine has stopped.
• Never remove the muffler guard from the engine.
• Never touch the muffler guard because it is extremely hot and will cause severe burns.
• Never touch parts of the engine that become hot after operation.
• Always keep materials and debris away from the muffler guard and other hot parts of the
engine to avoid fires.
CHILDREN AND BYSTANDERS
Tragic accidents can occur if the operator is not alert to the presence of children and/or
bystanders. Never assume that others will remain where you last saw them.
• Keep the area of operation clear of all persons, especially small children, and pets. Keep
children under the watchful care of a responsible adult.
• Be alert and turn machine off if children enter the area.
• Before and while moving backwards, look behind and down for small children.
• Never allow children to operate the machine.
• Use extra care when approaching blind corners, shrubs, trees, or other objects that may
obscure vision.
800-621-2789 RT190H Rev C Page 13
MRT190H
SERVICE
• Always stop the engine whenever you leave the equipment, before cleaning, repairing, or
inspecting the unit. Engine should be turned off and cool. Never make adjustments or
repairs with the engine (motor) running. Disconnect the spark plug wire and keep the
wire away from the plug. Rotate the ON/OFF switch located on the engine to the OFF
position to prevent accidental starting.
• Always wear eye protection when you make adjustments or repairs.
• Keep all nuts and bolts tight and keep equipment in good condition.
• Never tamper with safety devices. Check their proper operation regularly.
• When servicing or repairing the machine, do not tip the machine over or up unless
specifically instructed to do so in this manual. Service and repair procedures can be done
with the machine in an upright position. Some procedures will be easier if the machine is
on a raised platform or working surface.
• To reduce fire hazard, keep machine free of grass, leaves or other debris build-up. Clean
up oil or fuel spillage. Allow machine to cool before storing.
• Stop and inspect the equipment if you strike an object. Repair, if necessary, before
restarting.
• Clean and replace safety and instruction decals, as necessary.
• To guard against engine over-heating, always have engine air filter mounted and clean.
• Inspect machine before storage. When not in use, rotate the ON/OFF switch located on
the engine to the OFF position and store indoors in a dry place locked or otherwise
inaccessible to children.
• Use only original equipment parts from the factory, including all nuts and bolts.
2.4 Safety Decals
This Tiller has been designed and manufactured to provide you the safety and reliability you
would expect from an industry leader in outdoor power equipment manufacturing.
Reading this manual and the safety instructions it contains will provide you with the necessary
basic knowledge to operate this equipment safely and effectively. We have placed safety decals
on the tiller to remind you of some of this important information while you are operating the unit.
These important safety decals are illustrated below and are shown here to help familiarize you
with the content of the safety messages you will see as you perform normal tilling operations.
Please review these decals now, and if you have any questions regarding its meaning or how to
comply with these instructions, reread the complete safety instruction text in this manual, or
contact your local dealer.
800-621-2789 RT190H Rev C Page 14
MRT190H
Should a decal become unreadable because of being worn, faded or otherwise damaged during
the use of your tiller; please use the part number information provide to order a replacement
label. These decals are easily applied and will act as a constant visual reminder to you, and others
who may use the equipment, to follow the safety instructions necessary for safe, effective
operation of your tiller.
2.5 Training
1. Read the Owner’s Manual carefully. Be thoroughly familiar with the controls and the
proper use of the equipment. Know how to stop the unit and disengage the tines quickly.
2. Never allow children to operate the equipment. Never allow adults to operate the
equipment without proper instructions.
3. Keep the area of operation clear of all persons, particularly small children, and pets.
4. Always stay alert. Watch what you are doing and use common sense. Do not operate unit
when fatigued.
5. Understand the use of all tiller controls.
800-621-2789 RT190H Rev C Page 15
MRT190H
2.6 Preparation
1. Thoroughly inspect the area where the equipment is to be used and remove all foreign
objects.
2. Disengage the tines before starting the engine (motor).
3. Always wear substantial footwear and long pants. Do not operate the equipment when
barefoot or wearing open sandals.
4. Wear ear and eye protection. Eye protection must meet applicable CE requirements. To
avoid hearing damage, we recommend hearing protection be worn whenever using the
equipment.
5. Handle fuel with care; it is highly flammable.
6. Use an approved fuel container.
7. Never add fuel to a running engine or hot engine.
8. Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors.
9. Replace gasoline cap securely and clean up spilled fuel before starting.
10. Never attempt to make any adjustments while the engine (motor) is running.
2.7 Operation
1. Do not put hands or feet near or under rotating parts.
2. Exercise extreme caution when operating on or crossing gravel drives, walks, or roads.
Stay alert for hidden hazards or traffic. Do not carry passengers.
3. After striking a foreign object, stop the engine (motor) by rotating the ON/OFF switch
located on the engine to the OFF position, thoroughly inspect the tiller for any damage,
and repair the damage before restarting and operating the tiller.
4. Exercise caution to avoid slipping or falling.
5. If the unit should start to vibrate abnormally or make unusual noise, stop the engine
(motor), and check immediately for the cause. Vibration is generally a warning of trouble.
6. Stop the engine (motor) when leaving the operating position.
7. Take all possible precautions when leaving the machine unattended. Disengage the tines
and stop the engine by turning the ON/OFF switch located on the engine to the OFF
position.
8. Before cleaning, repairing, or inspecting, shut off the engine and make certain all moving
parts have stopped. Disconnect the spark plug wire and keep the wire away from the plug
to prevent accidental starting.
9. Do not run the engine indoors; exhaust fumes are dangerous.
10. Never operate the tiller without proper guards, plates, or other safety protective devices
in place.
11. Keep children and pets away when operating.
12. Do not overload the machine capacity by attempting to till too deep or too fast.
13. Never operate the machine at high speeds on slippery surfaces. Look behind and use care
when backing up.
14. Never allow bystanders near the unit.
800-621-2789 RT190H Rev C Page 16
MRT190H
15. Use only attachments and accessories approved by the manufacturer of the tiller.
16. Never operate the tiller without good visibility or light.
17. 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.
2.8 Storage
1. Keep machine, attachments, and accessories in safe working conditions.
2. Check assembly pins, engine mounting bolts, and other bolts for proper tightness to be
sure the equipment is in safe working condition.
3. Check for Hydraulic leaks from hoses or at hose connections.
4. Never store the machine with fuel in the fuel tank inside a building where ignition sources
are present, such as hot water and space heaters, clothes dryers, etc. allow the engine to
cool before storing in any enclosure.
5. Fuel stabilizer is an acceptable alternative in minimizing and formation of fuel gum
deposits during storage. Run engine at least 10 minutes after adding stabilizer to allow
the stabilizer to reach the carburetor. It is not necessary to drain either carburetor or fuel
tank when using fuel stabilizer.
6. Touch up all rusted or chipped paint surfaces; sand lightly before painting.
7. If possible, store your unit indoors and once sufficiently cooled, cover it to give protection
from the elements.
800-621-2789 RT190H Rev C Page 17
MRT190H
Ref
Part #
Description
Qty
10
1110005.MAX
Hydrostatic Motor, Tine Drive Danfoss
1
32
1110036.MAX
Tightener, depth Bar
1
36
1110040.MAX
Cover Plate, Chaincase
1
45
1110049.MAX
Chaincase Weldment
1
46
1110050.MAX
Tine Shaft, W/Sprocket
1
47
1110051.MAX
Tine Motor Bracket, Chain Tensioner
1
63
1110067.MAX
Bearing Holder, Tilling Tine Shaft
2
64
1110068.MAX
Drive Chain, #50, 49 Links
1
65
1110069.MAX
Master Link, #50 Chain
1
66
1110070.MAX
Tine Chain Drive Sprocket, 50 x 12T-1" Bore
1
71
1110075.MAX
Serrated Flange Bolt 1/4-20 x 1/2"
5
72
1110076.MAX
Bolt, 1/4 x 5/8 Soc Head
12
Ref
Part #
Description
Qty
83
1110087.MAX
Serrated Flange Nut, 1/2-13
4
84
1110088.MAX
Jamb Nut, 1/2-13
2
85
1110089.MAX
Flange Head Bolt, 1/2-13 x 1-1/2"
4
86
1110090.MAX
Hex Head Bolt, 1/2-13 x2 Full Thread
2
87
1110091.MAX
Oil Seal, Tine Shaft
2
88
1110092.MAX
Shaft Bearing,
2
94
1110098.MAX
Sleeve, Depth Bar Tightener Handle, 1/8 x 3/4"
1
95
1110099.MAX
Hex Head Pipe Plug, 1/4" NPT
1
102
1110106.MAX
Fitting, 6802-8-10, 45°, Tine Motor
2
113
1110117.MAX
Nylon Lock Nut, 1/2-13
6
139
1110143.MAX
O-ring
2
140
1110006.MAX
¼ inch woodruff key
1
3 PARTS BREAKDOWN
3.1 Chaincase Breakdown
800-621-2789 RT190H Rev C Page 18
MRT190H
Ref #
Part 3
Description
Qty 9 1110013.MAX
Tine Tube Bracket Assembly
2
35
1110039.MAX
Tilling Tine
12
36
1110040.MAX
Cover Plate, Chaincase
1
45
1110049.MAX
Chaincase Weldment
1
46
1110050.MAX
Tine Shaft, W/Sprocket
1
63
1110067.MAX
Bearing Holder, Tilling Tine Shaft
2
77
1110081.MAX
Serrated Flange Bolt 3/8-16 x 1"
24
109
1110146.MAX
3/8-16 Locking Nut
26
143
1110147.MAX
Hex Head Cap Screw Grade 5 3/8-16 x 1-3/4"
2
3.2 Tines Breakdown
800-621-2789 RT190H Rev C Page 19
MRT190H
3.3 Main Unit Breakdown
800-621-2789 RT190H Rev C Page 20
MRT190H
Ref
Part #
Description
Qty 1 1110001.MAX
Wheel Motor, Danfoss
2 2 1110002.MAX
Engine Mount Bracket Weldment
1 3 1110003.MAX
Frame Bracket, Rear
1 4 1110004.MAX
Lower Handle
2
5.1
BR006001C
Lovejoy Coupler 1"
1
5.2
BR006001F
Lovejoy Coupler 5/8"
1
5.3
BR006001B
Spider, Lovejoy
1 6 1110008.MAX
Pump, Mount
1 7 1110009.MAX
Hydraulic Oil Tank
1 8 1110011.MAX
Tandem Pump Assembly
1 9 1110013.MAX
Tine Tube Bracket Assembly
2
10
1110005.MAX
Hydrostatic Motor W/ Woodruff Key
1
11
1110015.MAX
Guard, Tiller tines
1
12
1110016.MAX
Flap, Tine Guard
1
13
1110017.MAX
Bracket, Safety Switch -Tine Drive Pump
1
14
GX270UT2QAG2
Engine, Honda GX270UT2QAG2
1
15
1110019.MAX
Fitting, 6400-4-2 - Pump to Pump
2
17
1110021.MAX
Hose, 1/4" Connecting Pump to pump
1
18
1110148.MAX
Hose, 3/8 x 11" Tank Return
1
19
1110023.MAX
Hose, 3/8 x 13.25 Filter to Wheel Pump Supply
1
20
1110024.MAX
Hose, 3/8 x 6.5" Tee to Wheel Motor
2
21
1110025.MAX
Hose, 3/8 x 17.75" Wheel Pump To Flow
Divider
1
22
1110026.MAX
Hose, 3/8 x 22.75" Flow Divider to Wheel
Motor
2
23
1110027.MAX
Hose, 3/8 x 22.75" Wheel Pump to Tee
1
24
1110028.MAX
Hose, 3/8 x 21.75 Tank outlet to Filter
1
25
1110029.MAX
Hose, 1/2 x 21.13" Tine Pump to Tine Motor
(Front Port)
1
26
1110030.MAX
Hose, 1/2 x 23.13" Tine Pump to Tine Motor
(Back Port)
1
28
1110032.MAX
Flow Divider
1
29
1110033.MAX
Motor Mount, Wheel
2
30
1110034.MAX
Bumper Weldment
1
31
1110035.MAX
Pump Support Bracket, Rear
1
32
1110036.MAX
Tightener, depth Bar
1
33
1110037.MAX
Filter Head
1
34
1110038.MAX
Filter, Hydraulic Oil
1
35
1110039.MAX
Tilling Tine
12
36
1110040.MAX
Cover Plate, Chaincase
1
37
1110041.MAX
Main Handle Weldment
1
38
1110042.MAX
Handle Bar
1
Ref
Part #
Description
Qty
39
1110043.MAX
Wheel Drive Control Rod
1
40
1110044.MAX
Tine Engagement Control Bracket
1
41
1110045.MAX
Tiller Tine Engagement Control Rod
1
42
1110046.MAX
Plate, Safety Switch & Reverse; Wheel Pump
1
43
1110047.MAX
Drive Safety Switch Plate, Neutral control
1
44
1110048.MAX
Bracket, Safety Flat
1
45
1110049.MAX
Chaincase Weldment
1
46
1110050.MAX
Tine Shaft, W/Sprocket
1
47
1110051.MAX
Tiller Tine Motor Bracket, Chain Tensioner
1
48
1110052.MAX
Safety Switch, Handlebar (Black)
2
49
1110053.MAX
Safety Switch, Neutral (white)
2
50
1110054.MAX
Valve Stem
2
51
1110055.MAX
Tube Cover Plug, 1" Square
2
52
1110056.MAX
Hydraulic Tank Cap, Ventilated
1
53
1110057.MAX
Wheel, 8 x 3.76
2
54
1110058.MAX
Tire, 480 x 8, 4 ply
2
55
1110059.MAX
Hub, Drive Wheel
2
56
1110060.MAX
Tilling depth Adjustment Bar
1
57
1110061.MAX
Cotter Pin, 1/8 x 1 1/4"
2
58
1110062.MAX
Castle Nut, 3/4"
2
59
1110063.MAX
Handle Bar Cover
1
60
1110064.MAX
Drive Control Stop Collar
1
61
1110065.MAX
Drive Control safety Paddle
2
62
1110066.MAX
Wire Harness, safety Switches
1
63
1110067.MAX
Bearing Holder, Tilling Tine Shaft
2
64
1110068.MAX
Drive Chain, #50, 49 Links
1
65
1110069.MAX
Master Link, #50 Chain
1
66
1110070.MAX
Tine Chain Drive Sprocket, 50 x 12T-1" Bore
1
67
1110071.MAX
1/4" Key
1
68
1110072.MAX
1/4-20 Nylon Locknut
1
69
1110073.MAX
Serrated Flange Nut 1/4-20
3
71
1110084.MAX
Machine Screw, #12 x 3/4" Self-tapping
3
72
1110076.MAX
Bolt, 1/4 x 5/8 Soc Head
12
73
1110077.MAX
Serrated Flange Bolt 1/4-20 x 1-1/4"
1
74
1110078.MAX
Carriage Bolt 1/4-20 x 3 1/4"
2
75
1110079.MAX
3/16" Key
1
76
1110080.MAX
3/8" Nylon Lock Nut
2
77
1110081.MAX
Serrated Flange Bolt 3/8-16 x 1"
48
78
1110082.MAX
Serrated Flange Bolt 3/8-16 x 1-1/4"
4
79
1110083.MAX
Serrated Flange Bolt 3/8-16 x 1-3/4"
8
800-621-2789 RT190H Rev C Page 21
MRT190H
Ref
Part #
Description
Qty
80
1110075.MAX
Serrated Flange Bolt 1/4-20 x 1/2"
5
81
1110085.MAX
Serrated Flange Nut 5/16-18
4
82
1110086.MAX
Serrated Flange Bolt 5/16-18 x 1/2"
4
83
1110087.MAX
Serrated Flange Nut, 1/2-13
4
84
1110088.MAX
Jamb Nut, 1/2-13
2
85
1110089.MAX
Flange Head Bolt, 1/2-13 x 1-1/2"
4
86
1110090.MAX
Hex Head Bolt, 1/2-13 x2 Full Thread
2
87
1110091.MAX
Oil Seal, Tine Shaft
2
88
1110092.MAX
Shaft Bearing,
2
89
1110093.MAX
Handle Grip, 7/8"
2
90
1110094.MAX
Drive rod End, 3/8-16
1
91
1110095.MAX
Hairpin Cotter, 1/4"
1
92
1110096.MAX
Spring, Tine Control
1
93
1110097.MAX
Grip, Tine Control Rod, 3/8"
1
94
1110098.MAX
Sleeve, Depth Bar Tightener Handle, 1/8 x
3/4" 1 95
1110099.MAX
Hex Head Pipe Plug, 1/4" NPT
1
96
1110100.MAX
Fitting, 2603-6-6-6 Tee
1
97
1110101.MAX
Fitting, 6400-4-4, 1/4" Straight - Drive Pump
1
98
1110102.MAX
Fitting, 6400-6-6, 3/8" Straight - Pumps/
Flow Valve
7
99
1110103.MAX
Fitting, 6400-6-10 3/8"-5/8" Straight - Wheel
Motor
4
100
1110104.MAX
Fitting, 6400-8-8 - 1/2" Straight - Tine Pump
2
101
1110105.MAX
Fitting, 2501-6-8 Elbow, - Tank
2
102
1110106.MAX
Fitting, 6802-8-10, 45 degree - Tine Motor
2
103
1110107.MAX
Fitting, 6500-6-6, 3/8" Elbow - Flow Valve
6
104
1110108.MAX
Bearing, Handle Bar Pivot
2
105
1110109.MAX
Serrated Flange Nut, 3/8-24 Control Rod End
2
107
1110138.MAX
Hydraulic Pump Cover
1
Ref
Part #
Description
Qty
108
1110112.MAX
Ball Joint stud, 3/8-24
2
109
1110146.MAX
3/8-16 Locking Nut
45
110
1110114.MAX
Jamb Nut, 3/8-24
2
112
1110116.MAX
Hex Head Bolt, 3/8-13 x 3/4"
2
113
1110117.MAX
Nylon Lock Nut, 1/2-13
6
114
1110118.MAX
Fitting, 6400-6-8 straight 1/2-3/8"
1
115
1110119.MAX
Roll Pin, depth Bar Stop, 1/8 x 1-1/4"
1
116
1110120.MAX
Hex Head Bolt, 1/4-20 x 1-3/4"
2
117
1110121.MAX
Lug Nut 1/2"
8
118
1110122.MAX
Maxim Bumper Decal
1
119
1110123.MAX
Tine Guard Side decal
2
120
1110124.MAX
Handle Cover Nameplate Decal
1
121
1110125.MAX
Hydraulic Oil Decal
1
122
1110126.MAX
Depth Adjust Decal
1
123
1110127.MAX
Handle Tube Decal - Dual Tine
2
124
1110128.MAX
Warning Rotating Tines decal
1
125
1110129.MAX
Warning - Avoid Injury Decal
1
126
ZS001
Warning Fire Hazard Decal
1
127
336720.MAX
Caution Do Not Operate W/O Guard Decal
1
128
1110132.MAX
Warning Read Operator's Manual Decal
1
129
797158.DOS
Made In U.S.A Decal
1
130
1110134.MAX
Forward-Reverse Handle Decal
1
131
1110135.MAX
Tine Direction Decal
1
132
1110136.MAX
Operator's Manual QR code Decal
1
133
799546
Prop 65 decal
1
134
1110139.MAX
Decal - Hydro Release
1
135
1110137.MAX
Spacer, Wheel Motor
4
137
1110140.MAX
Hydro release lever
1
138
1110142.MAX
roll pin
1
140
1110006.MAX
Woodruff key 1/4"
1
141
1110007.MAX
Plastic Plug For Bumper Weldment
6
800-621-2789 RT190H Rev C Page 22
MRT190H
3.4 General Information
Engine Honda GX270
Transmission Hydro/Wheel Motors
Tine speed (max) 300 RPM Dual Rotating
Tines Replaceable, bolt on
Tilling width 18”
Tilling depth 8”
Drag Bar Adjustable
Handles Adjustable
Tires 4.80/4.00-8
Dimensions (L x W x H) 69” x 21” x 42”
Shipping weight 315 lbs.
4 ASSEMBLY
Your tiller comes fully assembled and should not require anything other than fuel. It is highly
recommended that both the Engine Oil and the Hydraulic oil levels are verified full.
4.1 Final Set-up
Engine Oil:
•
The engine of your unit has been shipped, from the factory, already filled with SAE 30
summer weight oil.
•
With engine level, clean area around oil filler plug and remove plug.
•
Engine oil should be to point of overflowing when engine is level. For oil specifications
and capacity see your Honda engine manual shipped with unit.
•
Reinstall engine oil cap and tighten.
•
To change engine oil, see the Maintenance section in this manual.
800-621-2789 RT190H Rev C Page 23
MRT190H
800.621-2789
⚠
CAUTION: Fill to within 1/2 inch of top of fuel tank to prevent spills and to allow for fuel
Hydraulic Oil:
•
The Hydraulic oil reservoir of
your unit has been shipped,
from the factory, already filled
with Hydraulic oil.
•
To check level, unscrew the
Hydraulic Oil reservoir fill plug
from the top of the Hydraulic
reservoir. Correct level should
be approx. 1” inch below the
top of the reservoir tank.
•
Capacity approx. one gallon.
Fuel:
• Fill the fuel tank. Use clean, fresh, lead-free
gasoline. DO NOT MIX OIL WITH GASOLINE.
• Fill fuel tank to bottom of filler neck. Do not
overfill. Use fresh, clean, regular unleaded
gasoline with a minimum of 87 octane. (Use of
leaded gasoline will increase carbon and lead
oxide deposits and reduce valve life). Do not mix
oil with gasoline. Purchase fuel in quantities that
can be used within 30 days to assure fuel
freshness.
CAUTION
expansion. If gasoline is accidentally spilled, move machine away from area of spill. Avoid
creating any source of ignition until gasoline vapors have disappeared.
Wipe off any spilled oil or fuel. Do not store, spill, or use gasoline near an open flame.
Gasoline is highly flammable and explosive, you can be burned or seriously
injured when handling fuel. Use extreme care when handling gasoline or other
fuels. They are flammable and vapors are explosive.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
24
MRT190H
800.621-2789
⚠
⚠
5 OPERATING CONTROLS
CAUTION
Keep tine control rod in “DISENGAGED” position when starting engine.
5.1 To Start Engine
When starting the engine for the first time or if engine has run out of fuel it will take extra
pulls of the recoil starter to move fuel from the tank to the engine.
1. Make sure spark plug wire is properly connected.
2. Place throttle control, located on engine, in “FAST” position.
3. Turn fuel shut-off valve, located on engine, to open position.
4. Move choke control, located on engine, to closed choke position.
5. Grasp recoil starter handle with one hand and place foot on bottom part of front
bumper. Pull rope out slowly until engine reaches start of compression cycle
(rope will pull slightly harder at this point).
6. Pull recoil starter handle quickly. Do not let starter handle snap back against
starter.
7. If engine fires but does not start, move choke control to half choke position. Pull
recoil starter handle until engine starts.
8. When engine starts, slowly move choke control to “RUN” position as engine
warms up.
9. Move throttle control, located on engine, to desired running position.
10. Allow engine to warm up for a few minutes before engaging tines.
CAUTION
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TILLER.
Compare the illustrations with your tiller to familiarize yourself with
the location of various controls and adjustments. Save this manual
for future reference.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
25
MRT190H
800.621-2789
6 MACHINE IDENTIFICATION COMPONENTS
7 OPERATION
7.1 Drive operation
1. With hands on handlebar, gripping the micro safety switch tabs, unit can be operated in
forward/reverse along with tine operation.
2. Twist handlebar control forward for Forward drive, twist control backward for Reverse
drive. Center control for Neutral operation.
7.2 Tine operation
Tine movement is achieved by pulling tine control rod back for counter rotating tilling or push
forward for forward rotation tilling. To lock in either position, move control rod towards the
center.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
26
MRT190H
800.621-2789
Until you are accustomed to handling your tiller, start actual field use with throttle in slow position (midway
Depth Bar
Depth Bar Tightener Handle
7.3 Safe operation while tilling
1. Engage Tine direction for Forward rotation or Reverse rotation and twist handlebar
forward to begin tilling.
2. With Tine direction in neutral, Twist handlebar towards the operator, to reverse
movement of tiller.
Note: Engine will shut off, if tines are engaged and handle is twisted to move the tiller
in reverse.
CAUTION
between “FAST” and “IDLE”).
7.4 Depth Bar Stake
1 The Depth Bar Stake be raised or lowered, to allow you more versatile tilling and
cultivating or to transport your tiller using the power of the Hydraulics more easily.
3. Loosen Depth Bar tightener, pull the Depth Bar up for increased tilling depth. Place the
Depth Bar to the desired height position and retighten tightener handle to lock into
position.
4. Place tine control rod in desired position/rotation. Slowly lower tines into the ground.
Twist handlebar forward to desired speed
5. 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.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
27
MRT190H
800.621-2789
7.5 Turning sharply
1. Disengage the Tine Control Rod
2. Move throttle control to “Slow” position.
3. Lift handle to raise tines out of ground.
4. Swing the handle in the opposite direction you wish to turn, being careful to keep feet
and legs away from tines. Slowly twist handlebar to desired direction.
5. When you have completed your turn-around, with handle up and tines out of ground,
again engage tines in desired direction. Slowly lower handle to start tilling. Slowly twist
handlebar forward to desired speed.
7.6 Tilling
•
Tilling is digging into, turning over, and breaking up packed soil before planting. Loose,
unpacked soil helps root growth. Best tilling depth is 4” to 6” (10-15 cm). A tiller will also
clear the soil of unwanted vegetation. The decomposition of this vegetable matter
enriches the soil. Depending on the climate (rainfall and wind), it may be advisable to till
the soil at the end of the growing season to further condition the soil.
•
You will find tilling much easier if you leave a row un- tilled between passes. Then go back
between tilled rows. (See Fig. 15) There are two reasons for doing this. First, wide turns
are much easier to negotiate than about-faces. Second, the tiller will not be pulling itself,
and you, toward the row next to it.
•
Soil conditions are important for proper tilling. Tines will not readily penetrate dry, hard
soil which may con- tribute to excessive bounce and difficult handling of your tiller. Hard
soil should be moistened before tilling; however, extremely wet soil will “ball-up” or
clump during tilling. Wait until the soil is less wet, in order to achieve the best results.
When tilling in the fall, remove vines and long grass to prevent them from wrapping
around the tine shaft and slowing your tilling operation.
•
Do not lean on handle. This takes weight off the wheels and reduces traction. To get
through a tough section of sod or hard ground, apply downward pressure on handle or
raise the depth bar.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
28
MRT190H
800.621-2789
7.7 Cultivating
• Cultivating is destroying the weeds between rows to prevent them from robbing
nourishment and moisture from the plants. At the same time, breaking up the upper layer
of soil crust will help retain moisture in the soil. Best digging depth is 1” to 3” (2.5 - 7.5
cm).
• Cultivate up and down the rows at a speed which will allow tines to uproot weeds and
leave the ground in rough condition, promoting no further growth of weeds and grass.
• Do not lean on handle, this takes weight off the wheels, reduces traction, and may cause
the tiller to skip over the ground.
• Always lower the depth bar when using the forward rotating tine drive
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
29
MRT190H
800.621-2789
8 Transporting – pushing tiller without engine running/power
8.1 Hydraulic Pump Lock Out/Release
1. On the bottom side of the Hydraulic Pump locate the turn valve handle.
2. Using handle turn ½ revolution counter-clockwise to place Hydraulics in neutral-free
wheel position. Turn until tight clockwise to re-engage hydraulics.
3. Turn Hex shaft ½ revolution clockwise (Tight) to re-engage Hydraulics.
9 MAINTENANCE AND LUBRICATION
• The warranty on this tiller does not cover items that have been subjected to operator
abuse or negligence. To receive full value from the warranty, the operator must maintain
tiller as instructed in this manual.
• Some adjustments will need to be made periodically to properly maintain your tiller.
• All adjustments in the Service and Adjustments section of this manual should be checked
at least once each season.
• BEFORE EACH USE
1.
Check engine oil level. See page 33.
2.
Check tine operation.
3.
Check for loose fasteners.
9.1 Cleaning
IMPORTANT: If the engine has been running, allow it to cool for at least half an hour before
washing.
1. Wash the tiller, including the underside, after use.
2. Use Compressed air and/or Wash the engine by hand and be careful to prevent water or
debris from entering the air cleaner.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
30
MRT190H
800.621-2789
NOTE: Do not use a garden hose or pressure washing equipment, it can force water into the
air cleaner. Water in the air cleaner will soak the filter element and can enter the carburetor or
engine cylinder, causing damage.
3. After washing the tiller, wipe dry.
4. After the tiller is clean and dry, touch up any damaged paint and coat other areas with a
light film of oil.
5. Wipe the tines with oil or spay to prevent rusting.
9.2 Cleaning the Cooling System
1. Remove blower housing and clean regularly.
NOTE: Grass or chaff may clog cooling system after prolonged service. Continued operation
with a clogged cooling system causes severe overheating and possible engine damage.
9.3 Dual Filter Element Air Cleaner
Air Cleaner Check/Cleaning and Replacement
Dual Element Type:
A dirty air filter will restrict air flow to the carburetor
reducing engine performance. If the engine is operated
in dusty areas, clean the air cleaner more often than
specified in the MAINTENANCE SCHEDULE.
Operating the engine without the air filters or with the
filters installed loosely, will allow dirt to enter the engine,
causing rapid engine wear. Install the air filter securely.
1. Remove the nut (1) and the air cleaner cover (2).
2. Remove the wing nut (3) and the air filter assembly
(4-5)
3. Separate the inner filter (Paper) (4) from the outer filter
(foam) (5). Carefully check both filters for holes or tears
and replace if damaged.
4. Clean filters if they are to be reused.
5. Install the elements in the reverse order of removal.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
31
MRT190H
800.621-2789
9.4 Engine Oil – 1.16 quart, (38.63 oz)
Use only high-quality detergent oil related with API service classification SG, SF/CC, CDL. Select
the oil’s SAE viscosity grade according to your expected temperature.
Check engine oil level before each use.
Change the oil after the first 20 hours of operation and then every 100 hours after than or at least
twice a year.
TO CHANGE ENGINE OIL
1 Be sure engine is off and level.
2 Oil will drain more freely when warm.
3 Use a funnel to prevent oil spill and catch oil in a suitable container.
4 Remove drain plug.
5 For easier removal of plug use 7/16 12 Pt. socket with extension.
6 After oil has drained completely, replace oil drain plug and tighten securely at 13 ft-lbs.
7 Remove oil filler plug. Be careful not to allow dirt to enter the engine.
Refill engine with recommended oil to the upper level of the oil filler neck.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
32
MRT190H
800.621-2789
9.5 Hydraulic Oil - Capacity is approx. one gallon.
• The Hydraulic oil reservoir of your unit has been shipped,
from the factory, already filled with Hydraulic oil.
• To check level, unscrew the reservoir fill plug from the top of the tank. Correct level
should be to the bottom of the oil fill tube inside tank approx. 1” inch as seen below.
TO CHANGE HYDRAULIC OIL:
1 Be sure unit is off and level.
2 Oil will drain more freely when warm.
3 Disconnect the hose at Filter, shown below.
4 Lower hose and drain into a suitable container.
5 Remove Hydraulic Oil filter and replace every 25 hours.
6 Once drained, replace with new filter, and re-connect Hydraulic line.
7 Refill reservoir to the level as noted below, with fresh Hydraulic oil every season.
8 Turn Hydraulic Release handle, counter-clockwise (open position/ bypass)
9 Start engine and run at low rpm.
10 To purge system, rotate hand controls on handlebar, forward and backward10 times
each direction.
11 Turn Hydraulic Release handle clockwise (closed position) to re-engage hydraulics.
12 Verify hydraulics are working by rotating hand controls on handlebar, forward and
backwards multiple times each direction.
13 Stop engine and check hydraulic oil level and top off if needed, not to exceed 1”
from the top of reservoir as indicated below.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
33
MRT190H
800.621-2789
9.6 Tine Chain Case
Tine Chain Case Oil:
• The Tine Chain Case reservoir of your unit has been shipped, from the factory,
already filled with #80W-90 weight Gear oil.
• Approx. capacity 1/3 quart, 10.5 ounces
To check Tine Chain Oil level:
1. Remove four bolts from top inspection cover and remove.
2. Inspect coverage of oil on chain inside and ensure that oil is traveling up the
chain and is clearly visible on chain, when viewing through inspection cover.
3. Remount cover
To change Tine Chain Oil:
1. Remove four bolts from top inspection cover and remove.
2. Remove lower Tine Chain Case oil plug and drain.
3. Re-install oil plug
4. Fill with #80W-90 weight Gear oil with an approx. capacity of 1/3 quart,
10.5 ounces through inspection cover opening.
5. Remount Inspection cover with original mounting hardware.
To adjust and check tension of Tine Chain:
1. Remove four bolts from top inspection cover and remove.
2. Use the adjustment bolts on top of case to adjust tension of chain.
3. Deflection of chain should be no more than 1/8”
4. Caution must be taken to not overtighten chain.
5. Remount Inspection cover with original mounting hardware.
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
34
MRT190H
800.621-2789
CAUTION:
9.7 Muffler
Do not operate tiller without muffler. Do not tamper with exhaust system. Damaged mufflers
or spark arresters could create a fire hazard. Inspect periodically and replace if necessary. If
your engine is equipped with a spark arrester screen assembly, remove every 50 hours for
cleaning and inspection. Replace if damaged.
9.8 Spark Plug
Replace spark plugs at the beginning of each tilling season or after every 50 hours of use,
whichever comes first. Spark plug type and gap setting is to .030” / 0.76mm
10 Tire Care
•
Maintain 39 pounds of tire pressure. If tire pressures are not equal, tiller will pull to one
side.
•
Keep tires free of gasoline or oil which can damage rubber.
!
When mounting tires, unless beads are seated,
over-inflation can cause an explosion.
10.1 Maintenance Schedule
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
35
MRT190H
800.621-2789
11 WARRANTY
11.1 Warranty/Product Registration
Please register your product immediately after purchase. You can do that by visiting our
website at www.maximmfg.com
Or complete the following warranty/production registration form on the next page and return
to:
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
and complete our online product registration.
Maxim
Attn: Warranty Registration Department
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
36
MRT190H
800.621-2789
Or Fax completed form to 763-428-4821
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
37
MRT190H
800.621-2789
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
38
MRT190H
800.621-2789
Maxim
A Brand of Great Northern Equipment Distributing, Inc.
20195 South Diamond Lake Road
Suite 100
Rogers, MN 55374
www.maximmfg.com
800-621-2789
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
39
Loading...