Receiving a new mini excavator is an exciting moment, especially when a construction project is ready to begin. However, putting the machine to work immediately without a proper inspection can lead to avoidable equipment problems.
Not every issue that appears during the early stages of operation is caused by a manufacturing defect. Long-distance transportation, loading and unloading, and handling during delivery may affect certain machine components. Minor damage, insufficient fluid levels, loose hydraulic connections, or missing accessories can easily go unnoticed if the operator only checks the machine's exterior.
For this reason, completing a new mini excavator inspection checklist before the first operation is an important part of equipment acceptance.
At HIGHTOP, we recommend following three essential steps when receiving a new mini excavator: checking fluid levels, inspecting hydraulic lines and accessories, and performing a no-load operational test.
Step 1: Check All Fluid Levels Before Starting Your Mini Excavator
The first step in a new mini excavator inspection is to open the engine cover and check the engine oil, hydraulic oil, and fuel levels.
When checking engine oil, always remove the dipstick and verify that the oil level is within the recommended range. Do not rely solely on a visual inspection of the engine compartment.
The hydraulic oil level indicator provides a useful reference, but operators should also follow the inspection method specified in the machine's operating manual rather than relying exclusively on the indicator.
It is also important to understand that the engine oil dipstick may be positioned differently depending on the excavator model.
On most HIGHTOP mini excavator models, the engine oil dipstick is located toward the rear of the engine. However, on the Model 22 mini excavator, the dipstick is positioned at the front of the engine.
Identifying the correct dipstick location helps prevent incorrect oil-level readings during the initial inspection.
While checking the engine oil, inspect the oil drain plug and oil filter screen area for any signs of oil seepage or leakage.
If abnormal fluid levels or visible leaks are found, identify and resolve the issue before starting the machine.
Step 2: Inspect Hydraulic Hoses, Connections, and Supplied Accessories
The second step is to inspect the hydraulic system and confirm that all supplied accessories have arrived.
During long-distance transportation, vibration, loading, and unloading may cause hydraulic hoses to become compressed, connections to loosen, or protective hose coverings to suffer damage.
Walk around the entire mini excavator and carefully inspect the visible hydraulic lines.
Pay particular attention to the following areas:
- Hydraulic hose connections and fittings.
- Hose bends and areas where lines may have been compressed.
- Outer hose coverings for cuts, cracks, or visible damage.
- Connections showing signs of looseness or hydraulic oil leakage.
Any damaged hose or loose connection should be addressed before the machine enters service. Never use your hands to check for hydraulic leaks while the system is pressurized.
In addition to inspecting the hydraulic system, open the accompanying packaging and check the supplied accessories against the delivery or packing list.
Confirm that all included parts, attachments, and accessories are present and that no items were lost or damaged during transportation.
Completing this inspection immediately after delivery makes it easier to identify and report any transportation-related issues.
Step 3: Perform a No-Load Mini Excavator Operational Test
Once the required fluid levels have been checked and any necessary fluids have been added according to the manufacturer's instructions, the next step is to start the mini excavator and perform a no-load operational test.
Before starting, make sure the machine is positioned on stable, level ground and that the surrounding area is clear of people and obstacles.
Start the engine according to the operating manual and allow the machine to reach the appropriate operating condition before testing its functions.
During the no-load inspection, check the following movements:
- Boom raising and lowering.
- Arm extension and retraction.
- Bucket curling and dumping.
- Upper structure rotation.
- Forward and reverse travel.
- Dozer blade raising and lowering.
- High-speed and low-speed travel switching, where equipped.
- Auxiliary hydraulic functions for compatible attachments, where equipped.
Operate each function carefully and observe whether the movements are smooth and responsive.
Pay attention to unusual noises, jerky movements, abnormal vibration, delayed hydraulic response, or visible oil leakage.
If any irregularity appears during testing, stop the inspection and contact the equipment supplier or qualified service personnel before putting the machine into operation.
A new mini excavator should only enter regular construction service after all receiving inspections have been completed and no abnormalities have been identified.
Two Daily Maintenance Habits That Help Prevent Equipment Problems
Completing the initial inspection is only the beginning. Proper daily operating habits are equally important for maintaining the long-term reliability of a mini excavator.
Turn Off the Main Battery Disconnect Switch After Work
After completing daily operations and shutting down the machine, remember to turn off the main battery disconnect switch, where fitted, according to the manufacturer's instructions.
This helps prevent unnecessary battery discharge while the equipment is parked.
Leaving electrical systems connected for extended periods may gradually drain the battery, potentially resulting in starting difficulties or premature battery damage.
Grease All Pin and Joint Locations Before Daily Operation
Mini excavators contain multiple pins, bushings, and articulated joints that experience repeated movement during excavation.
Before beginning daily operations, lubricate the designated greasing points according to the machine's maintenance instructions.
Proper lubrication helps reduce friction and abnormal wear on pins and connecting components, supporting smoother equipment operation over time.
Operators should also check for damaged grease fittings or other conditions that may prevent lubricant from reaching the required areas.
How to Protect Your Mini Excavator Battery During Long-Term Storage
If your mini excavator will remain unused for an extended period, battery maintenance deserves additional attention.
Follow the manufacturer's storage instructions and, where appropriate, disconnect the battery terminal to reduce unnecessary electrical discharge.
The battery should also be checked and recharged periodically using a suitable charger according to the battery manufacturer's recommendations.
Allowing a battery to remain deeply discharged for an extended period may significantly shorten its service life or cause permanent damage.
Proper storage preparation can help ensure that the machine is ready for operation when the next project begins.
Final Thoughts: Complete Your New Mini Excavator Inspection Before Work
A proper new mini excavator inspection may take only a short amount of time, but it can help identify potential transportation damage, fluid-related issues, loose hydraulic connections, and missing accessories before they develop into more serious operating problems.
Remember the three essential steps:
- Check engine oil, hydraulic oil, and fuel levels.
- Inspect hydraulic hoses, connections, and supplied accessories.
- Perform a complete no-load operational test.
Combined with proper battery management and daily lubrication, these simple practices can help reduce preventable equipment failures and unnecessary maintenance costs.
Whether you are purchasing your first compact excavator or adding new equipment to an existing fleet, completing a thorough receiving inspection is an important step toward safer and more reliable operation.
