TMG TMG-TPD12 User manual

MODEL T M G-TPD12
48” 3-POINT HITCH POST
HOLE DIGGER
PRODUCT MANUAL
v2022.10.27
TMG-TPD12
Please read and understand the product manual completely before assembly
Check against the parts list to make sure all parts are received
Wear proper safety goggles or other protective gears while in assembly
Do not return the product to dealer. They are not equipped to handle your requests.
Missing parts or questions on assembly?
Please call: 1-877-761-2819 or email: [e-mail]
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SAFETY INSTRUCTIONS..........................................................................................................3
PARTS DESCRIPTION AND FUNCTION....................................................................................5
PRODUCTS SPECIFICATIONS..................................................................................................6
PRODUCTS SAFETY DECALS...................................................................................................6
UNPACKING & ASSEMBLY......................................................................................................7
CONNECTING TRACTOR........................................................................................................15
OPERATING ESSENTIALS......................................................................................................19
MAINTENANCE SCHEDULE....................................................................................................21
TROUBLESHOOTING..............................................................................................................21
EXPLODED VIEW & PARTS LIST...............................................................................................22
TABLE OF CONTENTS
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Safety First
You are responsible for the safe operation and maintenance of your post hole digger. You must ensure that you and anyone else
who is going to operate, maintain or work around the post hole digger is familiar with the operating and maintenance procedures
and related SAFETY information contained in this manual. This manual will take you step-by-step through your working day and
alert you to all good safety practices that should be adhered to while operating the Post hole digger.
Remember, you are the key to safety. Good safety practices not only protect you but also the people around you. Make these
practices a working part of your safety program. Be certain that EVERYONE operating this equipment is familiar with the
recommended operating and maintenance procedures and follows all the safety precautions. Most accidents can be prevented.
Do not risk injury of death by ignoring good safety practices.
1. Post hole digger owners must give operating instructions to operators or employees before allowing them to operate the
machine.
2. The most important safety feature on this equipment is a SAFE operator. It is the operator’s responsibility to read and
understand ALL Safety and Operating instructions in the manual and to follow these. All accidents can be avoided.
3. A person who has not read and understood all operating and safety instructions is not qualified to operate the machine. An
untrained operator jeopardies himself and bystanders to possible serious injury or death.
4. Do not modify the equipment in any way. Unauthorized modification may weaken the function and/or safety and could affect
the life of the equipment.
5. Think SAFETY! Work SAFELY!
General Safety
1. The post hole diggers are designed and manufactured only for the purpose of boring holes in earth and clay materials. Under
no circumstances should they be used for any other purpose.
2. Before using the post hole digger, carefully read and ensure you understand the contents of this Safety Operator’s Manual and
the contents of the Operators Manual for the associated tractor, including all the relevant safety instructions.
3. Never allow an improperly trained person, child or anyone who is not familiar with the safety rules and operating instructions to
attach or operate the post hole digger.
4. Do not leave the tractor seat or allow any person within ten meters of the post hole digger while it is in operation. Serious
personal injury or death may result if any attempt is made to assist the digger operation by hand.
5. Do not operate the digger on steep hillsides.
6. Do not operate the digger with any person within ten meters of the machine.
7. Wear ear protection when operating the post hole digger.
8. Refer to the tractor operators manual for safe working loads, including any counter-weighting that may be required to balance
the weight of the post hole digger.
9. Before operating the post hole digger, check all the pins, bolts and connection to ensure they are all securely in place. Replace
any damaged or worn parts immediately.
10. Never perform service or maintenance while the PTO is engaged, or the tractor engine is on.
11. Check the gearbox oil level and safety clutch adjustment before using the post hole digger.
12. Ensure that there are no underground electrical cables, telephone cables, gas, water, sewerage or drainage pipes in the area
to be drilled. If in doubt about any of the above do not start digging until the situation have been fully investigated and it is
safe to begin.
13. Exercise extreme care when operating in wet or slippery conditions, or on sloping or uneven terrain. Allow for the effect that
the weight of the post hole digger has on the tractor’s stability. Refer to the tractors operating and safety instructions.
14. When using the post hole digger it is most important that all the safety guards are fully maintained, in place and operating
correctly.
15. Always operate the post hole digger from the tractor seat.
16. Never clear earth away from the auger whilst it is operating.
17. Never allow a person to pull down on the digger boom or attach any type of counterweight to the boom to increase
penetration.
18. Before dismounting from the tractor or allowing any person to approach the post hole digger, disengage the PTO, switch off
the tractor engine and apply the parking brake.
SAFETY INSTRUCTIONS
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19. Ensure the tractor engine is switched off and the parking brake is applied before performing any inspection or maintenance
on the digger. If it is necessary to raise the machine for such work ensure it is properly supported. Do not rely on the tractor
hydraulics for support.
20. Never allow any person to ride on the post hole digger or the tractor when the digger is attached.
21. Never use alcoholic beverages or drugs which can hinder alertness or coordination while operating this equipment. Consult
your doctor about operating this machine while taking prescription medications. Review the safety instructions with all users
annually.
22. Ensure maintenance is carried out regularly by a qualified person. This is particularly important on moving parts such as the
P.T.O. If wearing parts are not properly maintained, driven parts can fly off at high speed causing damage to the machine,
operator and bystanders.
Storage Safety
1. Store the machine in an area away from human activity.
2. Do not permit children to play on or around the stored machine.
3. Store the machine in a dry, level area.
4. Clean grease and oil as required and protect it from the elements.
Maintenance Safety
1. Good maintenance is your responsibility. Poor maintenance is an invitation to trouble.
2. Follow good shop practices.
3. Keep service area clean and dry.
4. Be sure electrical outlets and tools are properly grounded.
5. Use adequate light for the job at hand.
6. Make sure there is plenty of ventilation. Never operate the engine in a closed building. The exhaust fumes may cause
asphyxiation.
7. Before working on this machine, shut off the engine, set the brakes, and remove the ignition key.
8. Never work under equipment unless it is secured by a mechanical stand.
9. Use personal protection devices such as eye, hand and hearing protectors, when performing any service or maintenance work.
Use heavy gloves when handling blades.
10. Only use genuine parts for service and maintenance.
11. A fire extinguisher and first aid kit should be kept readily accessible while performing maintenance on this equipment.
12. Periodically tighten all bolts, nuts and screws and check that all pins are properly installed to ensure unit is in a safe condition.
13. When completing a maintenance or service function, make sure all safety shields and devices are installed before placing
machine in service.
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1. Hydraulic Cylinder
Adjust the position.
4. Hitch Bracket
Connect tractor.
2. Frame Weldment
Support the product.
5. Drill Assembly
Drill hole.
3. Gear Box (Slip Clutch optional)
Through the driver chain transmit power
from gearbox to auger.
2. Frame Weldment
PARTS DESCRIPTION AND FUNCTION
1. Hydraulic Cylinder Assembly
3. Gear Box
4. Hitch bracket
5. Drill assembly
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Model No
TMG-TPD12
Auger diameter
12”
Max. auger depth
48”
Output bore
2”
Tractors horsepower
35-65hp
3-point linkage
CAT 1 & CAT 2
Length
1770mm
Width
790mm
Weight
215mm
Boom Size
100×100mm
Gearbox
60HP
PTO Safety
Yes-Protective Cover
PRODUCTS SPECIFICATIONS
PRODUCTS SAFETY DECALS
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1. After unpacking, check the following components
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
UNPACKING & ASSEMBLY
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NO.
DESCRIPTION
QTY
NO.
DESCRIPTION
QTY
1
Frame weldment
1
13
Connecting pin 35x100
1
2
Hitch bracket
1
14
Gearbox connecting shaft 22x185
1
3
Upper suspension plate
1
15
R Pin 4
1
4
Gearbox
1
16
Pin 12
7
5
Hydraulic cylinder assembly
1
17
Full-thread hexagon bolts M8×20
8
6
Gearbox protective hood
1
18
Spring washer Ø8
8
7
Drilling bit safety cover
1
19
Large plain washer
8
8
Connecting pin 24.5x96
1
20
Hexagon head bolts M12×90
2
9
Adjusting plate shaft 30x150
1
21
Plain washer Ø12
4
10
Hitch pin-lower 22x144
2
22
Lock nut M12
2
11
Hitch connecting pin 30x260
1
23
Drill assembly
1
12
Connecting shaft 35x270
1
*.All numbers are not part numbers in the drawings. For correct part numbers, see explosive diagram.
After the parts are confirmed to be correct and the tools for installation are ready, start the assembly. The specific operation
steps are described below.
TOOLS FOR INSTALLATION
NO
DESCRIPTION
SPECIFICATION
CONDITIONS OF USE
QTY
1
Open end wrench
10/13/18
M6, M8, M12 bolt tightening
1
2
Air gun
1280t
Tighten the bolt with the corresponding socket instead of the wrench
1
3
Hammer
1
4
Torque wrench
10-220N·m
Measuring torque
1
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2. Install suspension components
Installation steps:
1. Place the UPPER SUSPENSION PLATE (25) and the FRAME WELDMENT (10) as shown in the figure above, align the
mounting holes, connect them in series with the ADJUSTING PLATE SHAFT (5), and install the lock pin (14) to fix it. The
other CONNECTING SHAFTS (4) and locking pins (14) are installed in cooperation with the ADJUSTING PLATE SHAFT (5).
2. Place the upper lifting FRAME WELDMENT (10) and the HITCH BRACKET 8) as shown in the figure above, align the
mounting holes, connect them in series with the HITCH CONNECTING PIN (6), and install the lock pin (14) to fix it. (When
installing, it is recommended to install from the side, and use a shelf to support the parts 5 to prevent safety accidents)
3. Place the HITCH PIN-LOWER (3) through the HITCH BRACKET (8) as shown in the figure above, and install the lock pin (14)
to fix it.
PART NO.
DESCRIPTION
QTY
3
Hitch pin-lower 22x114
2
4
Connecting pin 24.5x96
1
5
Adjusting plate shaft 30x150
1
6
Hitch connecting pin 30x260
1
8
Hitch bracket
1
10
Frame weldment
1
14
Pin 12
5
25
Upper suspension plate
1
10
6
5
4
14
3
8
14
14
14
25
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3. Install the cylinder assembly
Installation steps:
1. Place the HYDRAULIC CYLINDER ASSEMBLY (21) in the position as shown in the figure above, pass through the pins on both
sides, pass through the upper lifting frame welding part and the suspension welding part respectively, connect them in series with
the cylinder, and pass through the CONNECTING SHAFT (11) and CONNECTING PIN (12) fixed.
PART NO.
DESCRIPTION
QTY
11
Connecting shaft 35x270
1
12
Connecting pin 35x100
1
14
Pin 12
2
21
Hydraulic cylinder assembly
1
21
12
14
11
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4. Install the gearbox
Installation steps:
Place the GEAR BOX (23) in the position shown in the figure above, align the mounting holes on the lifting frame, insert the
GEARBOX CONNECTING SHAFT (9), and fix it with R PIN (22).
PART NO.
DESCRIPTION
QTY
9
Gearbox connecting shaft 22x185
1
22
R Pin 4
1
23
Gear box
1
22
9
23
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5. Install the gearbox guard
Installation steps:
Place the GEARBOX PROTECTIVE COVER (7) in the position shown in the figure above, install the PLAIN WASHER (20), SPRING
WASHER (20), and BOLT (16) in sequence, and fasten it.
Importance: All bolts are locked in place without shaking.
NOTE: M8 Torque is 22~30 N·m
WARNING: Once the assembly bolts are not fastened in place, there will be abnormal noises when
the machine is working.
PART NO.
DESCRIPTION
QTY
7
Gearbox protective hood
1
16
Full-thread hexagon bolts M8×20
4
18
Spring washer Ø8
4
20
Large plain washer Ø8
4
7
16/18/20
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6. Install the drill guard
Installation steps:
1. Place the PRE-ASSEMBLED DRILLING BIT SAFETY COVER (1,2) in the position shown in the figure above, and fasten it on the
gear box with SPRING WASHER (18), PLAIN WASHER (20) and BOLTS (16).
2. BOLTS(B10), PLAIN WASHER(B9) and LOCKNUT (B1) are used to fix the drill bit of the hole puncher. Connect the optional drill
bit to the gear box.
Importance: All bolts are locked in place without shaking.
NOTE: M8、M12 torque is 22~30 N·m、78~104 N·m.
WARNING: Once the assembly bolts are not fastened in place, there will be abnormal noises
when the machine is working.
PART NO.
DESCRIPTION
QTY
1
Drilling bit safety cover
1
2
Drilling bit guard
2
16
Full-thread hexagon bolts M8×20
4
18
Spring washer Ø8
4
20
Large plain washer Ø8
4
A1
Lock nut M12
2
A9
Plain washer 12
4
A10
Hexagon head bolts M12×90
2
1/2
A1/A9/A10
16/18/20
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7. Installing the drill bit assembly
Installation steps:
1. First loosen the bolts on the drill bit guard, remove the drill bit guard.
2. Install the DRILL BIT ASSEMBLY on the gearbox, align the mounting holes on the gearbox, install the BOLTS (A10), PLAIN
WASHERS (A9) and tighten the NUT (A1).
3. Finally reinstall the removed bit guard.
Importance: All bolts are locked in place without shaking.
NOTE: M12 torque is 78~104 N·m.
WARNING: Once the assembly bolts are not fastened in place, there will be abnormal noises when the
machine is working.
PART NO.
DESCRIPTION
QTY
A1
Lock nut M12
2
A9
Plain washer Ø12
4
A10
Full-thread hexagon bolts M12×90
2
A1/A9/A10
A1/A9/A10
Release
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1. Three-point linkage
WARNING !
In the process of connection, when the tractor is the moving, if there is people between the tractor and working machine, it may
cause injury accident. Be sure no people stand between the tractor and working machine during the tractor moving.
LOWER LIFTING PIN TYPES
TMG-TPD12
CAT1 &CAT2
2. Connection and adjustment
CAUTION ! Make sure the tractor is fixed in the process of connection
a. Start the tractor engine, tractor and machine head lower link under suspension corresponds to the position of the pin, rewind,
stop, stop the engine, put up parking stalls.
b. Connect Left towing arm, the left arm on the tractor towing the working machine is left hanging inserted pin, the locking
detent. Right arm pulling the same way.
c. Adjust the towing arms in the same height, as shown below:
CONNECTING TRACTOR
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If the magnitude of the tractor towing arms is too narrow, adjust the left suspension pin inward as below:
d. Adjust angle, to obtain the most appropriate cutting angle, adjust the upon 3-point linkage suspension to
ensure the suitable cutting angle.
Adjust
Elastic cylindrical
Left suspension pin
Upon 3-point linkage
Handle for tractor
3-point linkage
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3. PTO installation
DANGER !
●If you use no plastic cover to protect the coupling, it is possible to be involved in the occurrence of injuries. Do not use no
plastic casing coupling.
●If you use damaged couplings, injuries may occur entangled. Couplings if damaged, replace it immediately. Please check if
coupling have damage before using.
●When connected to the tractor and rotary hoe, as a third party do not pay attention, inadvertently let the power output shaft
rotation, injuries may occur, after you cut off the power and stop the tractor engine PTO can be connected to the tractor.
a. Confirm coupling length
The minimum overlap of inner and outer coupling tube 1/2X size should be 220mm, if the size less than 100mm, please
change the coupling
L1: The maximum length of connection to the tractor.
L2: The minimum length of the connection to the tractor X: The overlap length.
b. The connection of coupling
1. Coupling connect to the rotary hoe end
Coupling with keyway end connect to the rotary hoe input shaft until the lock pin is exposed to in the original location.
2. Fixed coupling plastic cover
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3. After connection, fixed the chain to prevent the plastic cover rotation
4. Max rotation angle of coupling
NOTED !
If the shaft beyond its maximum operating angle of rotation at work, there will be unexpected injury accident. Be sure to fix
the tractor three-point suspension before use.
4. Coupling lubrication and maintenance
Max rotation angle in installation Max rotation angle in working
Proper grease lubrication and maintenance will greatly enhance the transmission efficiency of the tractor.
After eight hours of continuous operation coupling, check above the pointed position should be oiling and lubrication.
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ASSEMBLY
Attaching to the Tractor
Standard Model
1. Attach the main support boom to the top link of the tractor with a cat 1 top link pin.
2. Connect the ‘A’ frame to the lower link arms of the tractor with cat 1 lower link pins.
3. Position and connect the top of the ‘A’ frame with the outer pivot hole (pivot hole furthest from the tractor) under the main
boom.
4. Using the hydraulic linkage of the tractor, check the range of movement by raising and lowering the boom. Moving the pivot
pin closer to the tractor will increase the height the boom will lift.
5. With the boom positioned at a convenient height, attach the gear box (with the input shaft facing the tractor) to the boom by
aligning the holes and inserting the mounting pin.
6. Check the length of the PTO drive shaft by separating the telescopic shaft and attaching one section to the tractor PTO and
the other to the digger gear box. Hold both sections together and parallel. Lower the main boom so the the gearbox input
stub is horizontal with the PTO output stub. Ensure the PTO shaft has a clearance of at least 150mm. Repeat the process at
the maximum lift height of the boom. Ensure the PTO shafts has at least 300mm overlap. This operation will determine the
correct operating length of the drive shaft. The shaft may need to be cut to size.
7. Connect the auger to the output shaft of the gear box with the two shear pins. Tighten the nuts securely.
8. Connect the drive shaft to the gear box and other end to the tractor PTO ensuring correct alignment and seating of the
locking pin.
9. Raise and lower the linkage carefully to ensure sufficient ground clearance can be maintained. Adjust the ‘sway chains’ to
provide minimal side-ways movement.
Hydraulic Model
First fit up
1. Fit the post hole digger boom and ‘A’ frame to the three point linkage with the ram disconnected at the ram end.
2. Select the ‘A’ frame and boom pivot position to suit the tractor. You will need the boom to raise high enough to clear the
surface with the auger tip by 100 – 150mm, and lower enough to dig the required depth.
3. Fit the auger and lower the auger tip to rest firmly on the ground.
4. Place the linkage lever in the full down position and do not move it at any time.
5. Check the PTO shaft for length as described in above. Cut the shaft to suit as necessary following the safety precautions
described earlier.
6. Pin the hydraulic ram to the mount on the boom. Ensure all pins are locked securely.
The hydraulic remote lever is the only control now used to raise and lower the auger
Attaching the Assembled Digger to the Tractor
1. Position the digger with the PTO shaft removed and gearbox and auger on the ground behind the boom.
2. Back the tractor into position and lower the linkage. Connect the tractor lower linkage to the ‘A’ frame.
3. Align and connect the main boom top link mount to the tractor.
4. Lift the main boom with the hydraulics to the right height and fit the gear box and auger to the end of the boom.
5. Fit the PTO shaft.
6. Make sure the safety guards are in place and properly secured.
Changing Auger Teeth and Pilot
When worn the teeth and/or pilot bit on the auger should be replaced to maintain good
digging performance.Two types of teeth and pilots are available. Standard teeth and standard
pilot are used for normal ground conditions. Hard-faced teeth and hard-faced pilot can be
fitted for drilling in rocky ground. Both types of teeth and pilots will fit the augers.
The teeth are located in the socket of the auger head by their ‘U’ shaped profile and are held
in place by a rubber retainer which is wedged between the tooth and the socket. To remove
the tooth, place a small punch on the rear corner and strike it sharply with a hammer to
drive it out of the socket, refer to the diagram below.
CAUTION: Always wear eye protection when installing and removing teeth
OPERATING ESSENTIALS
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Changing the Auger
All augers are the same length and are attached in the same way by two shear bolts through the gearbox output shaft.
To remove the auger, raise the boom to allow the auger to hang vertically then lower until the end of the auger is about 100mm
above the ground. Stop the tractor engine and apply the parking brake. Remove the two attaching bolts from the upper end of the
auger and pull down so that it slides off the gearbox shaft. If the auger is tight on the shaft loosen it by sharply striking the auger
tube with a hammer where it overlaps the gearbox shaft. If it is necessary to strike the auger longitudinally on the flighting to drive
it off the shaft, first places a piece of timber on the flighting to avoid damage.
Clean and lightly grease the gearbox output shaft and the inner tube of the new auger. Align the bolt holes and slide the auger
onto the gearbox shaft. Install and securely tighten the two shear bolts.
Detaching the Digger from the Tractor
Raise the boom to allow the auger to hang vertically then lower it until the end rests on the ground. Stop the tractor engine and
apply the parking brake. Remove the PTO shaft. Move the tractor slowly forward whilst lowering the boom until the digger
gearbox rests on the ground. Stop the tractor and fully lower the linkage. Disconnect the upper linkage pin then the lower pins. It
may be necessary to use a hoist to take the weight of the digger.
Alternatively the digger can be removed with the PTO still attached to the gearbox by drilling the auger into the ground, to hold it
in an upright position.
General Operation
Standard Model
Before operating the digger for the first time carry out the lubrication checks. Check the gearbox oil level and grease the PTO
drive shaft universal joints and telescoping shaft. Read all the safety information contained in this manual and on the decals
attached to the machine. Carefully inspect the area to be dug.
In very good digging conditions the auger can sometimes cork-screw into the ground without breaking out the soil. Avoid this
happening by periodically lifting the auger with the three point linkage enough to break the drilled ground. In most instances this
will not be required.
Always operate the digger from the tractor seat. Under no circumstances stand or allow any other person to stand near the auger
when it is revolving. Never clear earth or allow any other person to clear earth from the auger while it is revolving. No other
person should be within ten meters of the machine while it is in operation.
Position the tractor with the auger hanging vertical and touching the ground at the spot where the hole is to be dug. Use the
tractor linkage to raise or lower the auger. Move the tractor backwards and forwards and adjust the three point linkage vertical
arm to get the auger perpendicular
Set the tractor engine speed to a fast idle so that the auger will revolve in the range of 50 to 100 rpm. The most appropriate auger
speed will depend upon the available tractor power, the diameter of the auger and the ground conditions. The larger the diameter
of the auger the slower the auger should rotate.
Engage the PTO drive and allow the action of the auger to penetrate the surface. Slowly lower the tractor linkage to follow the
penetration of the auger.
At every 300 to 500mm of depth lift the boom to spin the earth off the auger flighting, and then continue drilling. When lifting, do
not lift the auger clear of the hole as the auger will angle back and may not track back into the hole. At stages of drilling you may
need to move the tractor forward or backward to keep the auger vertical and compensate for the arc of the boom.
If the safety clutch slips reduce the ‘down pressure’ and if necessary inspect the hole for obstructions.
Before inspecting the hole or when the required depth has been reached, raise the auger from the hole and disengage the PTO
drive. Move the tractor away from the hole and lower the auger so that the end rests on the ground.
Stop the tractor engine, apply the parking brake and dismount to inspect the hole.
When transporting the post hole digger, raise the auger and travel slowly at a speed that is safe for the particular ground or road
conditions. If traveling on a public road, ensure that the tractor complies with the local regulations.
Hydraulic Model
Follow all safety precautions. To use the hydraulic post whole digger effectively, some experience with remote hydraulics is
helpful.
1. Position the auger where the hole is to be dug and ensure it is vertical
2. Engage the PTO in 540 rpm and select mid throttle.
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