How do you maintain a mini excavator day to day?

What should be checked before starting up?

Walk around the machine on stable ground, with the attachment lowered and the engine off. First look for traces of oil, fuel or coolant under the machine. Check levels according to the manual's procedure, without opening a hot circuit or touching a pressurised hose. Also check that warning labels are legible, that footsteps are clean, visibility from the seat, and the visible condition of the bucket and its pins.

Inspect the tracks, their pads and their tension according to the manufacturer's method: incorrect tension speeds up wear. Look for chafed, kinked or weeping hoses and loose fittings. Clean clogged cooling grilles. After starting, listen for unusual noises and watch the warning lights before making any movement. A fault relating to braking, stability or the hydraulics calls for stopping and a diagnosis, not just a note for later.

• Levels and leaks: engine oil, coolant, fuel and hydraulic fluid as per the manual.
• Undercarriage: tracks, rollers, trapped debris and the prescribed tension.
• Attachment: pins, bucket, coupler, hoses, rams and visible damage.
• Cab: controls, warning lights, horn, visibility and clean access points.

Mini excavator greasing: which points must not be forgotten?

Greasing mainly covers the boom, dipper and bucket linkages, as well as attachment pins where the manual calls for it. Locate each grease point on the machine's diagram: the same machine can change configuration with a quick-coupler or a different attachment. Clean the nipple before injecting the prescribed grease to avoid pushing dust into the joint.

Match the attention given to greasing to actual use: working in mud, frequent washing, dust and repeated cycles put more strain on the linkages. Do not replace a worn pin with an extra dose of grease. If grease will not go in, if a pin develops play, or if a seal lets out an abnormal mixture, have the assembly checked. Record the operation and the hour meter reading so the next team knows what has been done.

Mini excavator oil change and periodic maintenance: at what hours?

Never carry over a frequency found for a different model. Circuit capacity, fluid quality, the engine, the attachment and operating conditions all affect the maintenance plan. The table is a common example of how to organise tasks, to be checked against the manufacturer's manual: it sets no universal interval and no Kubota, Yanmar or Takeuchi recommendation.

For a mini excavator oil change, first identify the circuit concerned: engine, hydraulics, final drives or another assembly. Each circuit has its own fluid, filters where applicable, and procedure. A competent workshop records the hours, chooses the prescribed consumables, secures the machine, collects used fluids and investigates the source of any contamination or leak. Replacing a filter without checking for recurring contamination does not fix the fault.

How do you keep the maintenance logbook without losing track?

Create a record for each mini excavator with its identification, model and hour meter. After every job, note the date, the hours shown, the checks carried out, the parts and fluids used, any faults found and who carried out the work. Keep invoices, reports and observations in the same place. This makes it possible to tell an oil change that was actually done from one that was merely planned.

Plan the next operations from the actual meter reading and the manufacturer's programme, then check the hours on every return from site. If an attachment has its own maintenance plan, follow it separately. In the event of a breakdown, the logbook helps the mechanic find the last filter change or the first report of a leak. A printable PDF logbook is available at /carnet-entretien-engin-pdf; the format matters less than the regularity of the entries.

What signs should stop the machine?

A rapidly dropping fluid level, a hydraulic leak, overheating, a warning light, a track coming off its rollers or a suspect attachment call for stopping the machine and making it safe. Jerky movement, loss of power or a new metallic noise also call for investigating the cause. Never search for a hydraulic leak with your hand: a pressurised jet can pierce the skin.

Describe the symptom, its location and the machine's hours; a photo can help with diagnosis. Have a competent person decide on returning the machine to service after correction and a suitable test. Maintenance checks do not replace any regulatory inspections that may apply to the machine and its uses, particularly when it is used for lifting. Check the specific case with your inspection body.