AGT INDUSTRIAL AGT-DM12-C Mini Excavator User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your AGT INDUSTRIAL AGT-DM12-C Mini Excavator. Please read this manual thoroughly before operating the machine to ensure proper usage and to prevent injury or damage.

The AGT-DM12-C is a compact and reliable mini excavator designed for small and medium-sized projects. It features a 1-ton operating weight, a 13.5 HP Briggs & Stratton gasoline engine, a hydraulic thumb, and a side swing boom, making it suitable for various tasks in farms, gardens, public spaces, parks, and orchards.

2. Safety Information

WARNING: Failure to follow these safety instructions can result in serious injury or death.

• Always wear appropriate safety gear, including hard hat, safety glasses, hearing protection, and sturdy footwear, when operating the excavator.
• Keep hands, feet, and other body parts away from all moving parts of the machine.
• Do not operate the excavator if you are fatigued, under the influence of drugs, alcohol, or any medication that impairs judgment or reaction time.
• Ensure the operating area is clear of bystanders, children, and pets before starting the machine.
• Inspect the machine thoroughly before each use for any signs of damage, leaks, or loose components.
• Operate on stable, level ground whenever possible. Be aware of slopes and uneven terrain, which can cause tipping.
• Never exceed the machine's rated lifting capacity.
• Store the excavator in a secure location when not in use, away from unauthorized access.
• Always follow manufacturer's instructions for operation, maintenance, and storage.
• Familiarize yourself with all controls and their functions before operating.
• In case of emergency, know how to quickly shut down the machine.

3. Key Components

The AGT-DM12-C Mini Excavator is equipped with several key components for its operation.

Figure 3.1: Side view of the AGT-DM12-C Mini Excavator, showing the main body, operator seat, control levers, boom, and bucket with hydraulic thumb.

• Engine: 13.5 HP Briggs & Stratton Gasoline Engine provides power for hydraulic functions and movement.
• Boom and Arm: The primary digging and lifting components.
• Bucket: Standard digging attachment.
• Hydraulic Thumb: Allows for grasping and manipulating objects.
• Side Swing Boom: Enables digging parallel to the tracks, increasing versatility in confined spaces.
• Operator Controls: Levers and pedals for controlling boom, arm, bucket, swing, and travel.
• Tracks: Rubber tracks for mobility across various terrains.
• Blade: Front-mounted blade for leveling, backfilling, and stabilizing the machine.

Figure 3.2: Front-side view of the AGT-DM12-C Mini Excavator, illustrating the front blade in a lowered position, suitable for stabilization or light grading.

4. Setup and Pre-Operation Checks

4.1 Unpacking and Assembly (if required)

Upon receiving your AGT-DM12-C Mini Excavator, carefully inspect the packaging for any signs of damage. Remove all packing materials. If any assembly is required, refer to the separate assembly guide provided with your machine. Ensure all bolts and fasteners are tightened to the manufacturer's specifications.

4.2 Fluid Level Checks

• Engine Oil: Check the engine oil level using the dipstick. Add recommended oil if necessary.
• Hydraulic Fluid: Verify the hydraulic oil level in the reservoir. Ensure it is within the safe operating range. The hydraulic oil tank capacity is 18 L.
• Fuel: Fill the fuel tank with appropriate gasoline. The fuel tank capacity is 6.6 L.

4.3 Pre-Start Inspection

• Check for any visible leaks (oil, fuel, hydraulic fluid).
• Inspect tracks for damage or excessive wear.
• Ensure all safety guards and covers are in place and secure.
• Verify that all controls move freely and return to their neutral positions.
• Check the condition of the bucket and hydraulic thumb.

5. Operating Instructions

5.1 Starting the Engine

1. Ensure the machine is on level ground and the parking brake (if equipped) is engaged.
2. Confirm all control levers are in the neutral position.
3. Turn the ignition key to the "ON" position.
4. Engage the choke if the engine is cold.
5. Turn the ignition key to the "START" position and release once the engine starts.
6. Allow the engine to warm up for a few minutes before operating.

5.2 Basic Controls and Movement

Familiarize yourself with the joystick controls for the boom, arm, bucket, and swing functions. Foot pedals typically control track movement.

• Travel: Use the foot pedals to move the excavator forward or backward. The walking speed is 0-2 km/h.
• Boom/Arm: Operate the right joystick to raise/lower the boom and extend/retract the arm.
• Bucket/Swing: Operate the left joystick to curl/dump the bucket and swing the upper structure left/right.
• Hydraulic Thumb: Engage the dedicated control for the hydraulic thumb to grasp materials.
• Side Swing Boom: Use the dedicated control to articulate the boom left or right for offset digging.

Figure 5.1: The AGT-DM12-C Mini Excavator demonstrating the full extension of its boom, arm, and bucket, with the hydraulic thumb open.

5.3 Digging Operations

1. Position the excavator appropriately for the digging task.
2. Lower the blade for stability if needed.
3. Use a combination of boom, arm, and bucket movements to dig.
4. For precise work or digging next to obstacles, utilize the side swing boom feature.
5. The maximum digging depth is 1,764 mm (69.45 in).
6. The maximum digging radius is 3,080 mm (121.26 in).

5.4 Shutting Down the Machine

1. Park the excavator on level ground.
2. Lower the boom and bucket to the ground.
3. Engage the parking brake.
4. Allow the engine to idle for a few minutes to cool down.
5. Turn the ignition key to the "OFF" position.
6. Remove the key to prevent unauthorized use.

6. Maintenance

Regular maintenance is crucial for the longevity and safe operation of your AGT-DM12-C Mini Excavator.

6.1 Daily Checks

• Check engine oil, hydraulic fluid, and fuel levels.
• Inspect for leaks, loose bolts, or damaged components.
• Clean debris from the engine compartment and radiator.
• Lubricate all grease points as specified in the lubrication chart (refer to separate service manual).

6.2 Scheduled Maintenance

• Engine Oil Change: Refer to the engine manufacturer's manual for recommended intervals.
• Hydraulic Filter Replacement: Replace hydraulic filters at recommended intervals to maintain system cleanliness.
• Air Filter Cleaning/Replacement: Check and clean or replace the air filter regularly, especially in dusty conditions.
• Track Tension: Periodically check and adjust track tension to prevent premature wear. The tensioning form is mechanical.

Figure 6.1: Rear view of the AGT-DM12-C Mini Excavator, highlighting the engine access panel for routine maintenance checks.

7. Troubleshooting

This section provides basic troubleshooting steps for common issues. For more complex problems, contact qualified service personnel.

8. Technical Specifications

Detailed specifications for the AGT INDUSTRIAL AGT-DM12-C Mini Excavator.

9. Warranty Information

For detailed warranty information regarding your AGT INDUSTRIAL AGT-DM12-C Mini Excavator, please refer to the warranty card included with your purchase or visit the official AGT INDUSTRIAL website. Keep your proof of purchase for warranty claims.

10. Customer Support

If you require assistance, have questions, or need to order replacement parts, please contact AGT INDUSTRIAL customer support.

• Website: Visit the AGT INDUSTRIAL Store on Amazon
• Manufacturer: Agrotk Industrial
• Seller: AGT Industrial