Product Description

Model 400 3 Point Post Hole Digger for Compact/Sub-Compact 0 Tractors digger

Product Description

Model 400 three-point pile digger is agricultural equipment used to dig holes for fence piles, road signs, or any other work requiring deep holes in the ground. It is specially designed to be connected to the rear of a tractor or similar vehicle to provide the necessary power for its operation. The 400 three-point rear hole excavator is composed of a heavy steel frame with a gearbox, which connects the auger of the excavator to the power output of the tractor. It has a three-point linkage which is connected to the hydraulic system of the tractor to raise and lower the excavator to the required position.
The auger is a helical drill bit that rotates as the tractor engine turns the PTO shaft. As the auger gets deeper and deeper, the rotation of the auger forms a hole in the ground. The 400 three-point back-hole excavator has different configurations and different auger sizes, depending on the operation requirements.
The use of 400 three-point backhoe excavators requires a skilled operator with experience in operating agricultural equipment. The operator must understand the terrain, soil type, and depth and width of the borehole required for the operation. In general, compared with manual excavation, the 400 three-point pile excavator is a reliable and effective tool, which can save a lot of time and energy.


Parts of 400 types of three-point pillar digger

Model 400 Post Hole Digger
ITEM # P/N Description QTY
1 27-571 Series 1 Driveline 1
2 95462A545 7/8″- 14 Hex Nut 2
3 91102A037 7/8″ Lock Washer 2
4 43-571 7/8″ Draw Pin 2
5 24-0016 Model 400 A-frame 1
6 24-571 A-frame Pin 1
7 43-047 7/16″ LYNCH PIN 1
8 N/A Compact Auger (Various Sizes) 1
9 95462A033 1/2″-13 Hex Nut 2
10 91102A770 1/2″-13 Lock Washer 2
11 91247A724 1/2″-13 X 3″ G5 Bolt 2
12 98338A230 5/32″ X 1-1/2″ Cotter Pin 2
13 24-571 Boom Pin 1
14 24- 0571 45 HP Gearbox with Guards 1
15 95462A031 3/8″ -16 Hex Nut 1
16 91102A760 3/8″ Lock Washer 1
17 91247A636 3/8″-16 X 3″ Bolt, G5 1
18 24-0015 Model 400 Boom 1
19 24-0014 Manual Canister 1
20 92865A581 Bolt, 5/16″-18 X 3/4″, Shcs 3

Part size of 400 three-point pillar excavator

Model #  A(in)
Lower Hitch Point Spread -Max
Lower Hitch Point Spread -Min
Clevis/ Ball Joint Outside Width
Upper Hitch Point Pin Dia
Model 400  0, Sub Compact 26-3/8 20-7/8 1.75 0.75
Model 650 / 1 33-1/2 28 1-5/8 1.0
Model 1000 / 1 32-3/8 26-7/8 1-5/16 0.75
Model 1500 / 1 & 2 38-3/8 32-7/8 1-5/16 0.75

Operating Instructions for 400 Three-point Drilling Machine
Before assembling or operating this three-point drill, please read and thoroughly understand all instructions and safety information. Otherwise, serious injury or death may occur.
Step 1:
After connecting the pile excavator to the tractor, before turning on the power, slowly lower the auger to the ground at the required angle to dig a hole.
Step 2:
Engage the power take-off and start CHINAMFG at low speed, and slowly lower the auger while CHINAMFG the hole.
Step 3:
Increase the speed as the auger goes deep into the ground. The type of soil will determine the appropriate auger speed. Very hard or compacted soil may need to be operated at different speeds to achieve the highest efficiency of excavation.
When removing obstacles manually, do not let the tractor engine run.
If the rock or other obstacles encountered are too large to move the auger, the rear drilling excavator will start to vibrate. Slowly pull the auger completely out of the hole. Turn off the tractor power and remove obstacles manually. Slowly lower the auger into the hole and turn on the power to complete the hole.
Step 4:
When the required drilling depth is reached, the auger is rotated at high speed to remove the soil in the drilling hole. Reduce the speed before removing the auger from the hole.
Step 5:
After taking the auger out of the hole, separate the power take-off and move it to the next required hole position.
How to maintain the three-point rear digger?
Maintenance of a three-point rear excavator is essential to ensure long-term performance and safety. Here are some steps to maintain your post 3-point excavator:
How to maintain the three-point drill
Keep clean: thoroughly clean the pile hole excavator after each use to remove dirt, debris and dirt. Use a pressure washer or garden hose for proper cleaning.
Lubrication: Lubricate all moving parts with the appropriate lubricant recommended by the manufacturer. Check for worn or damaged parts and replace them if necessary.
Check bolts: regularly check bolts and nuts to see if they are loose. Make sure to tighten them as necessary to prevent the pile excavator from becoming unstable or losing parts.
Proper storage: store the pile excavator in a dry and covered area to prevent it from moisture and rust.
Inspection before use: before each use, check the excavator after drilling to ensure that its function is normal and all parts are in good condition. If you find any damage, do not use a pile-hole excavator before replacing or repairing parts.
Through regular maintenance of the three-point rear excavator, you can ensure that it will remain in good working condition for a long time in the future.

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After-sales Service: Installation Guide 1-Year Warranty
Warranty: Installation Guide 1-Year Warranty
Type: Post Hole Digger
Usage: Special Excavator
Bucket: Grab Shovel
Transmission: Hydraulic Transmission
US$ 9999/Piece
1 Piece(Min.Order)

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post hole digger

What factors should be considered when selecting the right post hole digger for a job?

When choosing the appropriate post hole digger for a job, several factors should be taken into consideration. These factors help ensure that the selected digger is well-suited for the specific requirements of the project. Here are some key considerations:

  1. Soil Type and Conditions: The type and condition of the soil play a crucial role in determining the ideal post hole digger. Consider whether the soil is soft, sandy, clayey, compacted, or rocky. Different diggers have varying capabilities in handling these soil types. For example, harder soils may require more powerful motorized diggers or specialized blades, while softer soils may be manageable with manual or smaller-sized diggers.
  2. Project Scale and Scope: The scale and scope of the project influence the selection of a post hole digger. Determine the number of holes that need to be dug and the depth and diameter requirements of the holes. Larger projects with numerous holes may benefit from motorized diggers that offer faster and more efficient digging. Smaller projects or occasional use may warrant manual diggers for cost-effectiveness.
  3. Available Power Source: Consider the availability of power sources at the job site. Motorized post hole diggers typically require access to electricity or fuel, such as gas or propane. If the job site lacks these power sources, manual diggers may be a more suitable choice. Additionally, consider the portability and maneuverability of the digger if the job site is in a remote or hard-to-reach location.
  4. Operator Experience and Strength: Assess the experience and physical strength of the operator(s) who will be using the post hole digger. Motorized diggers are generally more powerful and require less physical effort compared to manual diggers. If the operator is inexperienced or lacks sufficient strength, it may be advisable to opt for a motorized digger to ensure efficient and safe operation.
  5. Budget and Cost Considerations: Set a budget for the post hole digging project and consider the cost of different digger options. Motorized diggers tend to be more expensive upfront but can save time and effort in the long run, especially for larger projects. Manual diggers are typically more budget-friendly but may require more physical exertion and time investment.
  6. Additional Features and Accessories: Evaluate any additional features or accessories that may be beneficial for the project. Some post hole diggers offer adjustable depth settings, ergonomic handles, or anti-vibration systems for operator comfort. Assess whether any specific accessories, such as auger extensions or sharpening tools, are available or needed for the task at hand.

By considering these factors, project managers or individuals can make an informed decision when selecting the right post hole digger. It is essential to choose a digger that matches the soil conditions, project requirements, available power sources, operator capabilities, budget, and any desired additional features or accessories.

post hole digger

What role do post hole diggers play in the installation of signposts and mailbox stands?

Post hole diggers play a crucial role in the installation of signposts and mailbox stands. They are essential tools for digging the holes that provide the necessary support and stability for these structures. Here’s a detailed explanation of the role post hole diggers play in the installation process:

  1. Digging Holes: The primary role of post hole diggers is to excavate holes in the ground. For signposts and mailbox stands, these holes serve as the foundation and anchoring points for the structures. Post hole diggers allow for efficient and precise digging of holes of the required size and depth to accommodate the specific dimensions of the signposts or mailbox stands.
  2. Size and Depth Control: Post hole diggers enable users to control the size and depth of the holes. Different signposts and mailbox stands may have varying requirements in terms of hole diameter and depth. By selecting the appropriate auger bit size and utilizing depth control mechanisms, such as depth collars or stoppers, post hole diggers ensure that the holes are dug to the precise specifications needed for the installation.
  3. Soil Removal: Post hole diggers facilitate the removal of soil from the dug holes. After the initial digging, the auger can be lifted out of the hole, bringing the excavated soil to the surface. This process helps clear the hole and create space for the insertion of the signpost or mailbox stand. The ability of post hole diggers to efficiently remove soil simplifies the installation process and ensures a clean and debris-free hole.
  4. Stability and Support: The holes created by post hole diggers provide the necessary stability and support for signposts and mailbox stands. Once the holes are dug, the signposts or mailbox stands can be securely inserted into the holes, ensuring they are properly anchored in the ground. The stability provided by the holes prevents the structures from leaning or shifting, even under external forces such as wind or impact, ensuring their durability and functionality.
  5. Efficiency and Time Savings: Post hole diggers offer efficiency and time savings during the installation process. Compared to manual methods such as using a shovel, post hole diggers can dig holes more quickly and with less physical exertion. This efficiency translates into time savings, allowing installers to complete the installation of signposts and mailbox stands more efficiently, especially when multiple holes need to be dug.
  6. Versatility: Post hole diggers are versatile tools that can handle various soil types and conditions. Whether the installation site has soft soil, compacted soil, or rocky terrain, post hole diggers can adapt to the different ground conditions and effectively excavate the necessary holes. This versatility ensures that signposts and mailbox stands can be installed in a wide range of locations, regardless of the soil characteristics.

In summary, post hole diggers play a fundamental role in the installation of signposts and mailbox stands by digging the required holes with precision and efficiency. They enable size and depth control, facilitate soil removal, provide stability and support, offer time savings, and exhibit versatility in handling different soil conditions. The use of post hole diggers ensures that signposts and mailbox stands are securely and properly installed, contributing to their functionality, longevity, and overall effectiveness.

post hole digger

How do post hole diggers handle variations in soil types and conditions?

Post hole diggers are designed to handle variations in soil types and conditions, allowing for effective hole digging across different terrains. Here’s how they address these variations:

  1. Blade Design: Post hole diggers typically feature blades or augers with different designs to accommodate various soil types. For example, some blades have pointed tips and aggressive cutting edges, which are suitable for penetrating hard or compacted soils. Other blades may have a more open design with wider spacing, allowing for easier soil removal in softer or looser soils.
  2. Auger Size: Post hole diggers come in different auger sizes, allowing for versatility in handling different soil conditions. Larger augers are suitable for digging in softer soils where more soil needs to be displaced, while smaller augers are better for compacted or rocky soils where more effort is required to penetrate the ground.
  3. Power Source: Motorized post hole diggers, such as gas-powered or electric-powered ones, provide additional power to handle variations in soil types and conditions. The increased torque and rotational force generated by the power source enable the auger blades to overcome resistance in challenging soils, including compacted soil, clay, or rocky terrain.
  4. Adjustable Depth: Some post hole diggers offer adjustable depth settings, allowing operators to dig holes of varying depths. This feature is particularly useful when encountering different soil layers or when specific hole depths are required for a particular application. Operators can easily adapt the depth setting to match the soil conditions they are working with.
  5. Operator Technique: The operator’s technique plays a significant role in handling variations in soil types and conditions. Experienced operators know how to adjust the pressure, angle, and rotational speed of the post hole digger based on the specific soil they are working with. They may modify their approach to account for variations in soil hardness, moisture content, or presence of rocks or roots.
  6. Additional Tools and Accessories: In some cases, additional tools and accessories can be used in conjunction with post hole diggers to address specific soil challenges. For example, soil auger extensions can be added to reach greater depths in deep or sandy soils. Soil loosening agents or water can be employed to soften or moisten the soil, making it easier to dig.

By incorporating these design features, adjusting settings, employing proper technique, and utilizing additional tools if necessary, post hole diggers can effectively handle variations in soil types and conditions. However, it’s important to note that extremely hard or rocky soils may still pose challenges even for post hole diggers. In such cases, alternative methods or specialized equipment may be required to complete the digging task successfully.

China Good quality Model 400 3 Point Post Hole Digger for Compact/Sub-Compact 0 Tractors   pto shaft end yokeChina Good quality Model 400 3 Point Post Hole Digger for Compact/Sub-Compact 0 Tractors   pto shaft end yoke
editor by CX 2024-03-28