TMG TMG-TBH84 User manual

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PRODUCT MANUAL
v.2022.03.31
3-Point Swing Backhoe Attachment
MODEL TMG-TBH84

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Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety at All Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Look For The Safety Alert Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .8
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Serial Number Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Assembly and Hook-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Backhoe Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . .9
Tractor Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .10
Backhoe Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .10
Attaching Backhoe to Tractor Hydraulics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mounting Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Backhoe Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Levers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Excavation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 14
Special Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 17
Maintenance and Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hydraulic System Schematic . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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Important Safety Information
Safety at All Times
Careful operation is your best assurance against an accident. All operators, no matter how much experience they may have,
should carefully read this manual and other related manuals, or have the manuals read to them, before operating the power
machine and this implement.
l Thoroughly read and understand the “Safety Label” section. Read all instructions noted on them.
l Do not operate the equipment while under the influence of drugs or alcohol as they impair the ability to safely and
properly operate the equipment.
l The operator should be familiar with all functions of the tractor and attached implement, and be able to handle
emergencies quickly.
l Make sure all guards and shields appropriate for the operation are in place and secured before operating the implement.
l Keep all bystanders away from equipment and work area.
l Start tractor from the driver’s seat with hydraulic controls in neutral.
l Operate tractor and controls from the driver’s seat only.
l Never dismount from a moving tractor or leave tractor unattended with engine running.
l Do not allow anyone to stand between tractor and implement while backing up to implement.
l Keep hands, feet, and clothing away from power-driven parts.
l While transporting and operating equipment, watch out for objects overhead and along side such as fences, trees,
buildings, wires, etc.
l Do not turn tractor so tight as to cause hitched implement to ride up on the tractor’s rear wheel.
l Store implement in a safe and secure area where children normally do not play. When needed, secure implement against
falling with support blocks.
Look for the Safety Alert Symbol
The SAFETY ALERT SYMBOL indicates there is a potential hazard to personal safety and extra precaution must be taken.
When you see this symbol, be alert and carefully read the message that follows it. Hazard control, and accident prevention are
dependent upon the awareness, concern, prudence, and proper training of personnel involved in the operation, transport,
maintenance, and storage of equipment.
Be Aware of Signal Words
A signal word designates a degree or level of hazard seriousness. They are:
DANGER: Indicates a hazardous situation that, if not avoided, will result in death or serious injury.
WARNING: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION: Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.
Be Aware of Special Notices
Special notices are intended to point out important and helpful information that should be followed. They are usually placed
inside a box. They are:
IMPORTANT: Indicates that equipment or property damage could result if instructions are not followed.
NOTES: Indicates supplementary explanations that will be helpful when using the equipment.
Safety Precautions for Children
Tragedy can occur if the operator is not alert to the presence of children, Children generally are attracted to implements and
their work.
l Never assume children will remain where you last saw them.
l Keep children out of the work area and under the watchful eye of a responsible adult.
l Be alert and shut the implement and tractor down if children enter the work area.
l Never carry children on the tractor or implement. There is not a safe place for them to ride. They may fall off and be run

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over or interfere with the control of the power machine.
l Never allow children to operate the power machine, even under adult supervision.
l Never allow children to play on the power machine or implement.
l Use extra caution when backing up. Before the tractor starts to move, look down and behind to make sure the area is
clear.
Tractor Shutdown & Storage
l If engaged, disengage power take-off.
l Park on solid, level ground and lower implement to ground or onto support blocks.
l Put tractor in park or set park brake.
l Turn off engine and remove ignition key to prevent unauthorized starting.
l Relieve all hydraulic pressure to auxiliary hydraulic lines.
l Wait for all components to stop before leaving operator’s seat.
l Use steps, grab-handles and anti-slip surfaces when stepping on and off the tractor.
Listed below are common practices that may or may not be applicable to the products described in this manual.
Transport Safely
l Comply with federal, state, and local laws.
l Use towing vehicle and trailer of adequate size and capacity. Secure equipment towed on a trailer with tie downs and
chains.
l Sudden braking can cause a towed trailer to swerve unexpectedly. Reduce speed if towed trailer is not equipped with
brakes.
l Avoid contact with any overhead utility lines or electrically charged conductors.
l Always drive with load on end of loader arms low to the ground.
l Always drive straight up and down steep inclines with heavy end of skid steer on the “uphill” side.
l Engage park brake when stopped on an incline.
l Maximum transport speed for an attached equipment is 20 mph (32 km/h). DO NOT EXCEED. Never travel at a speed
which does not allow adequate control of steering and stopping. Some rough terrains require a slower speed.
l As a guideline, use the following maximum speed weight ratios for attached equipment:
20 mph (32 km/h) when weight of attached equipment is less than or equal to the weight of machine towing the equipment.
10 mph (16 km/h) when weight of attached equipment exceeds weight of machine towing equipment but not more than
double the weight.
l IMPORTANT: Do not tow a load that is more than double the weight of the vehicle towing the load.
Practice Safe Maintenance
l Understand procedure before doing work. Refer to the Operator’s Manual for additional information.
l Work on a level surface in a clean dry area that is well-lit.
l Lower implement to the ground and follow all shutdown procedures before leaving the operator’s seat to perform
maintenance.
l Do not work under any hydraulically supported equipment. It can settle, suddenly leak down, or be lowered accidentally.
If it is necessary to work under the equipment, securely support it with stands or suitable blocking beforehand.
l Use properly grounded electrical outlets and tools.
l Use correct tools and equipment for the job that are in good condition.
l Allow equipment to cool before working on it.
l Disconnect battery ground cable (-) before servicing or adjusting electrical systems or before welding on implement. s
Inspect all parts. Make certain parts are in good condition & installed properly.
l Replace parts on this implement with genuine TMG parts only. Do not alter this implement in a way which will adversely

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affect its performance.
l Do not grease or oil implement while it is in operation. sRemove buildup of grease, oil, or debris.
l Always make sure any material and waste products from the repair and maintenance of the implement are properly
collected and disposed.
l Remove all tools and unused parts from equipment before operation.
l Do not weld or torch on galvanized metal as it will release toxic fumes.
Prepare for Emergencies
l Be prepared if a fire starts.
l Keep a first aid kit and fire extinguisher handy.
l Keep emergency numbers for doctor, ambulance, hospital, and fire department near the phone.
Wear Personal Protective Equipment (PPE)
l Wear protective clothing and equipment appropriate for the job such as safety shoes, safety, glasses, hard hat, dust
mask, and ear plugs.
l Clothing should fit snug without fringes and pull strings to avoid entanglement with moving parts.
l Prolonged exposure to loud noise can cause hearing impairment or hearing loss. Wear suitable hearing protection such
as earmuffs or earplugs.
l Operating a machine safely requires the operator’s full attention. Avoid wearing headphones while operating equipment.
Avoid High Pressure Fluids
l Escaping fluid under pressure will penetrate the skin or eyes causing serious injury.
l Relieve all residual pressure before disconnecting hydraulic lines or performing work on the hydraulic system.
l Make sure all hydraulic fluid connections are properly tightened/torqued and all hydraulic hoses and lines are in good
condition before applying pressure to the system.
l Use a piece of paper or cardboard, NOT BODY PARTS, to check for suspected leaks.
l Wear protective gloves and safety glasses or goggles when working with hydraulic systems.
l DO NOT DELAY. If an accident occurs, seek immediate emergency medical care or gangrene may result.
Use Safety Lights and Devices
l A Slow moving power machine can create a hazard when driven on public roads. They are difficult to see, especially at
night. Use the Slow Moving Vehicle (SMV) sign when on public roads.
l Flashing warning lights and turn signals are recommended whenever driving on public roads.
Use Seat Belt and ROPS
l TMG recommends the use of a CAB or roll-over-protective-structures (ROPS) and seat belt in almost all power machines.
Combination of a CAB or ROPS and seat belt will reduce the risk of serious injury or death if the power machine should
be upset.
l If ROPS is in the locked-up position, fasten seat belt snugly and securely to help protect against serious injury or death
from falling and machine overturn.
Keep Riders Off Machinery
l Never carry riders on the tractor or implement.
l Riders obstruct operator’s view and interfere with the control of the power machine.
l Riders can be struck by objects or thrown from the equipment.
l Never use the tractor or implement to lift or transport riders.
Avoid crystalline Silica (quartz) Dust
Because crystalline silica is a basic component of sand and granite, many activities at construction sites produce dust
containing crystalline silica. Trenching, sawing, and boring of material containing crystalline silica can produce dust
containing crystalline silica particles. This dust can cause serious injury to the lungs (silicosis).

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There are guidelines which should be followed if crystalline silica (quartz) is present in the dust.
l Be aware of and follow OSHA (or other local, State, or Federal) guidelines for exposure to airborne crystalline silica.
l Know the work operations where exposure to crystalline silica may occur.
l Participate in air monitoring or training programs offered by the employer.
l Be aware of and use optional equipment controls such as water sprays, local exhaust ventilation, and enclosed cabs with
positive pressure air conditioning if the machine has such equipment. Otherwise respirators shall be worn.
l Where respirators are required, wear a respirator approved for protection against crystalline silica containing dust. Do
not alter respirator in any way. Workers who use tight-fitting respirators can not have beards/mustaches which interfere
with the respirator seal to the face.
l If possible, change into disposable or washable work clothes at the work site; shower and change into clean clothing
before leaving the work site.
l Do not eat, drink, use tobacco products, or apply cosmetics in areas where there is dust containing crystalline silica.
l Store food, drink, and personal belongings away from the work area.
l Wash hands and face before eating, drinking, smoking, or applying cosmetics after leaving the exposure area.
Handle Chemicals Properly
l Protective clothing should be worn.
l Handle all chemicals with care.
l Follow instructions on container label.
l Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals,
l plants, soil, and property.
l Inhaling smoke from any type of chemical fire can be a serious health hazard.
l Store or dispose of unused chemicals as specified by the chemical manufacturer.
Safety Labels
Your Backhoe comes equipped with all safety labels in place. They were designed to help you safely operate your
equipment. Read and follow their directions.
1. Keep all safety labels clean and legible.
2. Refer to this section for proper label placement. Replace all damaged or missing labels.
3. Some new equipment installed during repair requires safety labels to be affixed to the replaced component as specified
by TMG. When ordering new components make sure the correct safety labels are included in the request.
4. Refer to this section for proper label placement. To install new labels:
a. Clean surface area where label is to be placed.
b. Spray soapy water onto the cleaned area.
c. Peel backing from label and press label firmly onto the surface.
d. Squeeze out air bubbles with edge of a credit card or with a similar type of straight edge.

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Warning: To prevent bodily injury
Warning: Prevent injuries caused by instability
Warning: Adjust tractor speed accordingly to maintain
precision of control
Warning: Crush Hazard
Caution: Grease all the points before operating

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Stabilizers controls
Crowd and swing controls Boom and bucket controls
Boom Lock: Swing Lock and Boom Lock
When transporting or dismounting backhoe, you must lock the backhoe's swing and boom. Position boom straight back and
drop pin through holes in swing frame and boom. When not in use, store pin in hole provided on swing frame and boom.
BE SURE remove the lock pin before you start operating the backhoe!

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Introduction
We congratulate you on choosing this high quality hydraulic backhoe! The purpose of this instruction manual is to help you
maintain and use your backhoe. Read the instruction manual carefully. It contains information and guidance that will help
you achieve years of reliable service and performance. The backhoe has been designed to require only little maintenance
(cleaning and lubricating). Some of the instructions are general due to unknown and varying conditions. If you have any
doubt or problems, please contact your dealer or the importer. We wish you safe and pleasant work with this tool!
Attaching and using the backhoe will require some previous experience in tractor operation. These instructions on the
operation of the backhoe are important to read even if you are experienced operator. Make sure no one operates the
backhoe without receiving a proper training in the use of the equipment and they will read the instruction manual and safety
instructions before use. Keep these instructions safe the whole lifetime of the equipment. Lost instruction manual will be
replaced by your dealer. Remember to pass this instruction manual to any new owner of the equipment.
Application
The backhoe is designed and built for farms, drainage ditches, nurseries, golf courses, utilities, and cemeteries. An
unobstructed view of the work area, comfortable positioning of the controls and walk through platform allow for hours of
fatigue free work. The backhoe is attached to the tractor with 3-point hitch. The backhoe is suitable for contracting work;
the spill can be loaded on a trailer or platform. The backhoe cannot be used for lifting as it may tip over.
Attaching the backhoe is fast and easy. The backhoe is attached to the tractor using 3-point connection. The control
platform of the backhoe sits on top of the tractor draw hook and control levers are used from the backhoe control platform.
Backhoe turns slowly and steadily 180 degrees to each side. Two hydraulic stabilizers come as standard as well as 30 cm
wide bucket.
Terminology
“Right” or “Left” as used in this manual is determined by facing the direction the machine will operate while in use unless
otherwise stated.
Owner Assistance
The Warranty Registration card should be filled out by the dealer at the time of purchase. This information is necessary to
provide you with quality customer service. If customer service or repair parts are required contact a dealer. A dealer has
trained personnel, repair parts and equipment needed to service the machine. The parts on your machine have been
specially designed and should only be replaced with genuine parts.
Serial Number Plate
For prompt service always use the serial number and model number when ordering parts from your dealer. Be sure to include
your serial and model numbers in correspondence also.

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Assembly and Hook-UP
Backhoe Assembly
1. Remove all loose parts or packaging from the crate, check goods without damaged and omission.
2. Check the packing list as below,
Part No.
Ref. No.
Parts Description
Qty
1
BK215.01
Frame and Boom Assembly
1
2
BK215.02
Dipperstick and Bucket Assembly
1
3
GB/T5872-2000
Bolt-M12x115
1
4
BKN215.013
Support Seat
1
5
BK215.016
Seat Plate
1
6
BKN215.015
Link Weldment
1
7
GB/T5872-2000
Bolt-M12x100
1
8
BK215.106
Pin,φ12
1
9
BK215.033
Seat
1
10
BK215.401
Lever stick
2
11
BK215.409
Rubber Cover
2
12
BK215.040
Hand Lever
2
13
BK215.107
Guide Bar
1
3. Assembly the part 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 to the part 1(Frame and Boom Assembly), and then assemble the part 2
to part 1, you will get the backhoe assembled.

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Tractor Preparation
Tractor Requirements
Tractor horsepower should be within the range noted below. Tractors outside the horsepower range must not be used.
Hitch Category----------------3-Point Cat. I & II
Power Take-Off Speed-----------------540 rpm
Horsepower Requirements-----------40-100 hp
Rear Counterweight
Do not exceed the manufacturer’s rating for maximum gross vehicle weight. Refer to operator’s manual or ROPS serial plate
provided with tractor.
Certain specific conditions may not permit safe use of backhoe at backhoe rating or may require more careful restricted
operation at the rated load.
ROPS System
The tractor must be equipped with an approved ROPS System to ensure adequate operator’s protection.
Tractor Hydraulic System
Tractor operation in a backhoe application significantly increase demands on the tractor Hydraulic System. Check the tractor
Hydraulic system fluid level daily. Refer to your tractor Operator’s Manual maintenance section for instructions regarding
tractor hydraulic system maintenance. Adhere to recommendation in your Tractor Operator's Manual concerning hydraulic
fluid and filter specifications, and change intervals.
Tire Inflation
Front tires must be maintained at the maximum recommended inflation to maintain normal tire profile with the added weight
of backhoe/material. Rear tires must be maintained at equal pressure within the recommended tire inflation range. Unequal
rear tire inflation can prevent backhoe attachment from contacting the ground across its full width.
Wheel Tread Settings
Tractor front wheel tread setting must be restricted to wheel tread spacing recommended in the tractor Operator's Manual.
Backhoe Mounting
The following instructions will help you mount the backhoe to the tractor 3-point hitch. Read all safety instructions, decals and
operating instructions before operation.
Mounting Instructions
1. Reverse the backhoe to the tractor.
2. Remove the top link from the tractor.
3. If the tractor is equipped with draft control, render it inoperable. If this is not possible, adjust the draft lever to its heaviest
load position.
4. Attach the 3-point hitch to the tractor using the cap screws from the single and double link, and remove the double link.
Allow the hitch lock out arms to drop.
5. Check to be sure that the single link is installed onto the backhoe with pin, thrust washers, and snap rings.
6. Install the center double link onto the tractor top link location using the existing high strength pin supplied by your tractor
manufacturer.
7. Connect hoses to the 180°bulkhead connectors on the console that are coming from the backhoe valve.(Left connector
goes to backhoe inline filter and the right connector comes from backhoe shut-off valve). Install the connectors (from
your dealer) to the hoses. Connect the male connector to the hose coming from the right side shut-off valve and the
female connector to the hose coming from the left side inline filter.
8. Following the proper operating procedures listed in your tractor operator’s manual, slowly back the tractor up to the
backhoe. (Backhoe the tractor only close enough to connect the hydraulic system.)

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Escaping fluid under pressure can have sufficient force to penetrate the skin causing serious personal injury. Fluid escaping
from a very small hole can be almost invisible. Use a piece of cardboard or wood, rather than hands to search for suspected
leaks. Keep unprotected body parts, such as face, eyes, and arms as far away as possible from a suspected leak. Flesh
injected with hydraulic fluid may develop gangrene, or other permanent disabilities.
9. Hook up the hydraulic system to the tractor with the hydraulic pressure going to the backhoe inline filter and coming from
the backhoe check valve and going to the tractor.
We recommend that you involve your dealer for the initial hydraulic hook-up. Install the correct hydraulic couplers that fit your
tractor onto the backhoe pressure and return hoses.
10. Start the tractor engine and operate at low RPM. Activate the tractor valve to provide hydraulic power to the backhoe.
(Check for any hydraulic leaks.)
Until the backhoe is securely mounting onto the tractor, keep all people clear of your work area and make sure that no portion
of the operator’s body is beneath any part of the backhoe.
11. Raise the backhoe using the stabilizer and boom control levers until the swing is approximately 20 cm above ground
level. Make sure the backhoe is vertical (perpendicular to the ground).
12. Back the tractor until the lower link ball joints are in line with the mounting holes in the backhoe mainframe.
While backing tractor be aware of the location of the hydraulic hoses and top links.
13. Install the hitch pins connecting the lower links to the backhoe mainframe. Secure in place using the two pins provided.
14. Position the single top link in-between the double link, Adjust the backhoe height until at least one hole lines up between
the two links. Keep backhoe vertical while adjusting the height. Install the cap screw, two hard flat washers (both sides)
and lock nut provided.
15. If the hitch lock-out arms were not installed at the factory, position them to the inside of the mounting holes, and bolt into
place using the two cap screws, hard flat washers (both sides), and lock nuts provided. Position the hitch lock-out arms
on each side of the top links, align one of the holes (as far away from the cap screw installed in step 16 as possible), and
install the cap screw, two hard flat washers (both sides), and lock nut provided.
It is important to pick a set of holes that place the backhoe in a vertical position in relationship to the ground with about 20 cm
of ground clearance at the boom pivot pin.
16. Torque all mounting bolts. Refer to the torque chart of this manual.
17. Check hose routing to ensure that they are kept away from the operator during backhoe operation. Do not let them touch
the ground. Secure all hydraulic lines in place for operator safety and to prevent them from being damaged.
18. Double check clearance between the backhoe operator and any solid portion of the tractor, such as the cab or ROPS. If 20
cm of head clearance is not available, DO NOT USE THIS BACKHOE ON THIS TRACTOR. Failure to observe these
instructions my cause severe personal injury or death.

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Do not attempt to modify the mounting in any way. Incorrect mounting or modifying of the backhoe 3-point mounting could
allow the backhoe to raise up during use, resulting in injury or death.
DO NOT attempt to raise the backhoe with the 3-point hitch. The backhoe center links along with the hitch lock out arms make
the backhoe a solid mount that is immovable. Any attempt to raise the backhoe with the 3-point hitch will cause the hydraulic
lift oil to go over relief and eventually damage the hydraulic system due to excessive heat build-up.
Attaching Backhoe to Tractor Hydraulics
Attach male disconnects to quick disconnects on tractor. Make sure there is ample room to operate all functions of the
backhoe safely. Operate backhoe slowly to fill all cylinders, hoses and valves with oil.
Should the backhoe fail to operate after connecting to tractors quick disconnect, reverse coupling.
Tractor hydraulic oil supply must be maintained at proper level during initial operation. Do not overfill. Final check should be
taken with backhoe in transport position.
Seat Adjustment
The backhoe seat can be adjusted to facilitate operator comfort and head clearance. There is a lever under the seat for sliding
forward/backward. The seat can be adjusted on the base up/down and the base can be moved forward/backward. Before
mounting the backhoe on to your loader/tractor move the seat forward and position it into the lowest position. After
installation the seat may be moved back if clearance is not a factor.
Mounting Kit
The 3-point hitch adapter kit will adapt the backhoe to any three point hitch tractor. The seller makes no claims, implied or
otherwise, as to the compatibility or structural integrity of any tractors when backhoe is installed with 3-point hitch. Since may
models of tractors have standard category hitches and backhoes have standard category attaching points, it is possible to
mount tractor/backhoe combinations that are not compatible. Dealers and/or owner must determine that compatibility
between the tractor and backhoe exists.
Compatibility includes, but is not limited to items such as operator clearance, hitch component strength, tractor case strength
and hydraulics. Suggestions given as to hitch categories and horsepower ranges used with various models of backhoes are
suggestions only and not recommendations as to suitability of any combination of tractors and backhoes.

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Backhoe Operation
Levers
The backhoe is equipped with two hydraulic stabilizers that keep the backhoe in place and stabilize digging especially while
dumping to the side. Digging is more effective with stabilizers and should be used during digging. Stabilizers extend wider
than tractors rear wheels giving balance to digging.
Your backhoe is operated by four different control levers. Two are for stabilizer operation and the other two operate the swing,
boom, dipperstick, and the bucket functions. The information contained below will help you become familiar with the
operation of each control lever. Read the safety precautions of this manual before attempting to use the backhoe. Remember,
right and left when referred to on this page are determined by the operator’s position seated at the backhoe controls facing
the bucket.
Left Stabilizer Decal Right Stabilizer Decal
Crowd and Swing Controls Decal Boom and Bucket Controls Decal
Do Not dig near the stabilizers to prevent an accident. Do Not lift the tractor tires with the stabilizers. Ensure that the
stabilizers are set on firm ground to support tractor and backhoe.
Stabilizer Levers
Moving the stabilizer lever(s) forward will bring the backhoe stabilizer(s) “down”. Moving the stabilizer lever(s) backward will
raise the backhoe stabilizer(s) “up”. Both stabilizers are required to be down for proper stability of the backhoe when in
operation.
Boom/Swing Lever (Left Hand Lever)
Pushing the boom/swing lever forward will “lower” the boom dipstick and bucket. Full forward is the “float” position. Pulling
the lever backward will “lift” the boom, dipperstick, and bucket. Pushing the boom/swing lever to the left will swing the boom
and bucket to the “left”. Pushing the boom/swing lever to the right will swing the boom and bucket to the “right”.
Dipperstick/Bucket Lever (Right Hand Lever)
Pushing the dipperstick/bucket lever forward will move the dipperstick “out” or away from the operator. Pulling the lever
backward will mover (crowd) the dipperstick “in” or toward the operator. Pushing the dipperstick/bucket lever to the left will
“fill” or curl the bucket (move inward). Pushing the lever to the right will “dump” the bucket (move outward).
Bucket and Boom Levers
These two levers (crowd and swing control lever, bucket and boom control lever) provide four simultaneous operations. Both
experience and practice are needed to eliminate excess motion and increase operating efficiency.

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Excavation
When operating the backhoe, smoothness of technique should be strived for at all times. Smoothness will come with
experience and practice at feathering the controls. Establish a flowing digging cycle to increase operator efficiency and save
unnecessary wear on the machine. Observe the following points to obtain the best results and to fully utilize the digging force
of the backhoe.
Check the prospective digging area for hidden utility lines before operating the backhoe or when in doubt of their location,
contact the local utility companies. When operating the backhoe in an area where utilities are expected to be present, throttle
the backhoe down and proceed with caution. If you feel the backhoe bucket made contact with anything out of ordinary, stop
digging at once. Have the obstruction checked by hand. If a utility line has been damaged, contact the affected utility at once.
Preparing for Excavation
Before any excavating is started, it is always a good idea to plan out the job first. Various things need to be considered and
taken into account prior to the actual digging. The operator should inspect the job site and take notice of any potential
hazards in the area. He should have a complete understanding of the tasks he is expected to perform. Figure out what will be
done with the spoil (excavated soil), will it be used to backfill or be moved out? What is the soil conditions like? Will you have
to work around others? Etc. Once you have become familiar with the job site and understand the job requirements, it is time to
set up for the actual digging. Position the backhoe in such a way as to minimize repositioning the unit and to maximize
digging efficiency. Consider the replacement of spoil and position the backhoe to be able to dig the maximum amount of soil,
accurately, while leaving enough room for the spoil removed to be piled in the desired area.
Once the unit is positioned, lower the stabilizers to the ground. The tires should still be supporting most of the vehicle weight
with the stabilizer relieving only part of the weight, and mainly acting to give the unit a wider base for increased stability and to
keep the unit from moving or bouncing with backhoe use. The front end loader should also be lowered if the unit is so
equipped. The vehicle should at no time be supported by the stabilizers and loader with any of its wheels off the ground.
Severe damage to the vehicle could result. When operating the unit on a delicate surface (such as concrete, or stone work) or
on sandy, loose, or soft ground place plywood under the stabilizers to help distribute the load over a wider area.
Warm Up
Warm up actions before initial backhoe operation. Fully raise and lower the boom, dipperstick, swing and stabilizers two or
three times. Fully raise the bucket from the ground and operate the bucket cylinders couple of times, lower the bucket. Check
the tractor hydraulic oil level and correct it if necessary.
Front weight
Due to the hydraulic power and weight of the backhoe, it may be desirable to place additional weight for stability on the front
of the tractor. To achieve the full efficiency of the backhoe, it is necessary to know the correct angle for digging. At initial
contact with the ground, the boom and the dipperstick should be positioned at an angle for best penetration. The boom and
dipperstick should not be extended in a straight line.
Basic digging technique
When starting an excavation, make the first cut of each section shallow, being careful to follow the exact layout of the
excavation. The reason for the shallow cut is to minimize damage to the sod and to facilitate replacement.
These first cuts are also important because they will act as guides for the remaining cuts, thus getting the first few cuts as
accurate as possible will help in keeping all future cuts accurate.
When digging with the backhoe, extend the boom, dipperstick and bucket out, away from the operator. Lower the boom and
dipperstick to start the digging process. The bucket teeth should be at a 30° to 45° entry angle. As the digging starts, curl the
bucket until the cutting edge is level with the horizon. Crowd the bucket in toward the operator working the bucket lever to
keep the bucket level. As the bucket moves toward the operator, manipulate the boom lever to keep the cut level. At the end of
the digging cycle, crowd the dipper out and completely curl the bucket while lifting it from the excavation. Once you have
cleared the excavation, swing the bucket to the spoil pile. Start to dump the bucket before the pile is approached. Once the
bucket is empty, swing the unit back to the excavation, positioning the bucket and dipperstick for the next cut in the process.
The whole digging process should be one smooth cycle that is repeated until the excavation is completed. When the
excavation has been dug to within 15 cm of the finished bottom, clear and touch up the sides of the excavation. Use the flat

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sides of the bucket to scrape off any high spots.
Dislodge any exposed rocks if they seem loose. When finishing walls, finish the far wall by curling the bucket out, crowding the
dipperstick out, and forcing the bucket down. To finish the closest wall, lift the bucket up and curl it in.
Once the sides are cleaned up, finish grading the bottom of the excavation. This is done by making the remaining cuts long
and shallow, concentrating on making them level and smooth. Remove any remaining spoil. Check the excavation bottom for
depth and levelness, making any adjusting cuts as needed.
The basic steps just listed at the same regardless of the excavation. All other digging jobs are simply variations of this basic
procedure. Remember to make your cuts in smooth cycles. This will reduce operator fatigue and machine wear while
increasing productivity and efficiency.
No work can be performed by dragging a full bucket. Any time the dipperstick cylinder cannot move the dipperstick, it is then
necessary to actuate the bucket. This will lessen the "bite" and ease the bucket so the dipper can be moved.
The manner in which to obtain a full bucket every time is to work from the top down and taking a shallow enough "bite" to
enable the operator to make a clean, smooth pass. When performing digging operations, be sure the bucket teeth are at the
correct angle for break-out and ease of filling the bucket.
When the filled bucket is being raised, do not pull the dipperstick closer to the boom than necessary to clear the hole. This will
eliminate the need for extending the dipperstick to dump the bucket on the spill pile. All operations should be made smoothly
for efficient operation. Yanking on the control levers and jamming the bucket will not do the work, but can result in heating of
the oil and inefficient operation. Once the bucket is clear of the ditch or hole, it can be swung to the side for dumping. At the
start of the work, dump the material far enough to the side so there will be ample room to pile the entire spill.
Loading trucks is performed satisfactorily with the backhoe by curling the bucket close to the dipperstick to prevent spillage
from the bucket when it is raised. With the 3-point hitch mounted backhoe you can make full 180 degree swing, so it is
possible to dump either side of the excavation as desired. The swing on the backhoe is completely hydraulic and needs no pin
moving or other mechanical changes to make the 180 degree swing.
When digging trenches, usually it is important to obtain a level bottom. Inexperienced operators sometimes have difficulty in
achieving this. Level bottoms are achieved by setting the bucket teeth on a slight angle and maintaining this angle by
gradually uncurling the bucket as the dipperstick is drawn toward the operator. At the same time, pull back intermittently on
the boom control lever. This will feather the boom and maintain a level bottom.
To dig a straight trench, it is best to chalk a mark about 30 cm off the center of the intended trench. Then, make a marking on
the backhoe frame about 30 cm off center. The operator can maintain a straight line by keeping the mark on the backhoe
directly over the chalk marking on the ground.
When digging a pipe leak, always dig along the line of pipe and never across it. Excavate around the leak to give ample room
for the repair to be made.
When trenching on a slope, always start at the top and work down. When working across a slope make full use of the
stabilizers on the backhoe to level the machine. Always pile the dirt on the uphill side. Caution should be exercised when
working on slopes. The rate of travel on slopes, hillsides and curves should always be such that there is no danger of tipping.
Always keep cylinders in a retracted position when the backhoe is not in use to guard against rust and contamination which
may cause damage to the cylinder rods or hydraulic system. Also, lock the swing and boom while tractor is moving and
storing for an extended period of time.

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Special Applications
Trenching Between a Building and an Open Excavation
Start the trench at the building and trench toward the open excavation. Dig toward the open excavation until there is just
enough room to move the unit out from between the trench and open excavation.
Position the unit so the backhoe swing is over the centerline of the trench connection. Dig with the backhoe at an extreme
swing position and as close to the stabilizers as possible. Pile the soil on the opposite side of the trenches. Position the unit
forward so the two trenches can be connected. Pile the spoil on the opposite side of the trench.
Excavating on Slopes
When digging on slopes always face the backhoe upgrade whenever possible. It may be necessary to cut a level surface in the
hill for the backhoe to sit in when operating on slopes. This will allow the backhoe to sit level for digging the main excavation.
Pile the spoil from the surface downhill. When digging the main excavation, pile the spoil uphill.
Pipeline Leak Repair
To check for pipeline leaks, start by digging a bell hole about six feet wide and ten feet long. Then, dig lengthwise along the
pipeline to locate the leak. Once the leak is located, position the unit to dig at grade level on both sides of the pipeline. If a
section of pipe is to be replaced, strip the soil from both ends of the bell hole. Enlarge the hole enough to allow the workmen
adequate working space in the leak area.
Backfilling
To backfill an excavation, lower the extended bucket into the spoil pile. Curl the bucket and lift it clear of the spoil pile. Swing
the bucket to the excavation and extend the bucket. Return the bucket to the spoil pile and continue the cycle until the job is
completed.
Do not backfill by using the swing circuit and dragging the bucket sideways. Doing so could cause damage to the dipperstick,
boom, and swing cylinders or mainframe. Avoid constant jarring or hammering contact between the spoil pile and the loaded
bucket as this may cause premature wear to the backhoe pins and bushings.
Cold Weather Operation
For smooth operation in cold weather, let the tractor warm up. Slowly circle all of the cylinders several times to warm the oil in
the hydraulic system. The backhoe may operate erratically until the hydraulic oil has warmed to operating temperature.
When lowering a heavy load, ease it downward slowly. Never drop a loaded attachment and "catch it hydraulically". Stopping a
load after it has gained downward momentum places undue strain on the unit and may cause unnecessary damage to the
backhoe or tractor or even worse, personal injury. Before disconnecting hydraulic lines, relieve all hydraulic pressure.
Escaping hydraulic oil under pressure can have sufficient force to penetrate the skin causing serious personal injury. If injured
by escaping hydraulic oil, seek medical attention immediately.
Do not operate the backhoe if fittings are leaking or if hoses are damaged. A sudden line burst can cause the boom, or
dipperstick bucket to drop suddenly, causing damage to the tractor or backhoe or personal injury.
Before leaving the machine, stop the engine, remove the key, place all controls in neutral, and either set the parking brake or
place tractor in park as equipped.

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When using a backhoe, be aware of bucket and boom location at all times. When raising dipperstick with bucket rolled
forward, material can spill onto non target area causing injury to assistant or damage other objects. Do not dig near
stabilizers. Ground under stabilizers could collapse. Make all movements slowly and gradually when practicing operation.
Operate from backhoe operators' seat only. Pay attention; be ready to stop immediately in case of an emergency. To help
prevent roll-over, adjust the rear wheels to their widest setting to maximize stability. Refer to your tractor operator's manual
for recommendations.
Specifications
Backhoe Model
TMG-TBH84
A
Digging Depth (two foot flat bottom)
2150mm
84”
B
Reach from center line of Swing Pivot
3200mm
126”
C
Loading Height(bucket at 60°)
1850mm
72.8”
D
Maximum Leveling Angle
10°
10°
E
Swing Arc
180°
180°
F
Transport Height (maximum)
2120mm
83.5”
G
Transport Overhang
1230mm
48.4”
H
Bucket Rotation
180°
180°
I
Stabilizer Spread (down position)
1750mm
68.9”
J
Stabilizer Spread (up position)
1180mm
46.5”
K
Angle of Departure
21°
21°
Bucket Digging Force
1175kg
2592(lbs)
Dipperstick Digging Force
895kg
1975(lbs)
Operating Pressure
160bar
2320psi

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Maintenance and Lubrication
Proper servicing and adjustments are key to the long life of any implement. With careful inspection and routine maintenance,
you can avoid costly downtime and repair.
Check all hardware after several hours of operation and regularly thereafter to ensure they are tight and secured. Replace
worn, damaged, or illegible safety labels by obtaining new labels.
ITEM
SERVICE
SERVICE INTERVAL
Hydraulic System Oil Level
Check
Daily/10 hours
Hydraulic System Oil/Filter
Replace
As specified in Tractor
Operator's Manual
Tire Inflation
Check
Weekly/50 hours
Backhoe Pivot Points
Lubricate
Daily/10 hours
Backhoe Hydraulic Lines,
Hoses, Connections
Check for leaks, wear
Daily/10 hours
Boom, Arm, Swing and Bucket
cylinder rod packing
Check for seepage, service
as needed
Daily/10 hours
Pivot pin bolts and dust covers
Check, replace if missing
Daily/10 hours
Friction of All pins
Check, replace if necessary
Daily/10 hours
Backhoe mount hardware
Check visually
Daily/10 hours
Bolts and Nut release
Re-torque
Every 25 hours
CAUTION
Do not perform service or maintenance Operations with backhoe raised off the ground. For additional access
to tractor components remove backhoe.

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Lower the backhoe to the ground and relieve pressure in backhoe hydraulic lines prior to performing any service or
maintenance operations on the tractor or backhoe.
CAUTION
Escaping fluid under pressure can have sufficient force to penetrate the skin , causing serious injury . Before
disconnecting lines, be sure to relieve all pressure. Before applying pressure to the system, be sure all
connections are tight and that lines, pipes and hoses are not damaged. Fluid escaping from a very small hole
can be almost invisible. Use a piece of cardboard or wood rather than your hands to search for suspected leaks.
If injured by escaping fluid, seek medical attention immediately. Serious infection or reaction can develop if
correct medical treatment is not administered immediately.
Refer to "Lubrication and Maintenance Chart" for quick reference to Maintenance Operations.
Check the tractor hydraulic system as outlined in the Tractor Operator's Manual.
NOTE
When checking hydraulic system oil level, the backhoe should be on the ground and bucket fully retracted (all
cylinders in retracted position).
Grease all backhoe pivot points daily(10 hours). Refer to Tractor Operator's Manual for lubricant recommendations.
Inspect hydraulic hoses, connections, control valve and cylinders for evidence of leakage.
Tractor tires should be maintained at maximum recommended inflation to maintain normal tire profile with added weight of
backhoe/material. Unequal rear tire inflation can result in bucket not being level to the ground.
CAUTION
Do not operate the backhoe if the fittings are leaking or if the hoses are damaged. A sudden line burst could cause
the boom, dipperstick or bucket to drop suddenly, causing damage to the tractor or backhoe or injury to personnel.
Operate the backhoe from the operator seat only.
Do not stand or walk under a raised backhoe. Accidental movement of control lever or leak in hydraulic system
could cause boom or dipperstick to drop, causing severe injury.