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Views: 0 Author: Site Editor Publish Time: 2026-03-01 Origin: Site
According to our MAXNOVO MACHINE's professional machinery expert experience, most of CNC Lathes downtime or problems happens because maintenance slips through the cracks. As a result, Proper maintenance on CNC Lathe Machines is very important and necessary for ensuring your CNC Machine running high precision, extending the CNC Lathe's lifespan, and preventing costly downtime. A well-maintained machine not only delivers precise, high-quality results but also minimizes downtime and costly repairs.
General Speaking, Maintenance on CNC Lathe is typically divided into Daily Maintenance (every 8 Hours of operation), Weekly Maintenance (every 50 Hours of operation), Monthly Maintenance (every 250 Hours of operation) and Annual Maintenance (every six months or every 1500 Hours of operation).
Here is our suggests Guide and Tips on how to perform maintenance on CNC lathe machines.
Table Of Content
1. Daily Maintenance
2. Weekly Maintenance
3. Monthly Maintenance
4. Annual Maintenance
5. Tips for Maintenance and Inspection
6. Common Issues and Troubleshooting
7. Conclusion
Daily maintenance is the foundation of keeping your CNC machine in peak condition. To spend a few minutes each day to complete these simple tasks, you can prevent build-up, identify issues early, and ensure your CNC lathes smooth operation.
Remove chip, dust and other foreign matter around the table base, saddle, tool length measuring device and etc.
Wipe off lubrication, coolant and chip from the machine surface.
Wipe off all foreign matter from the slide ways not protected by the cover (base slide ways)
Clean the slide ways covers.
Clean the exposed limit switches and around them.
Clean the electrical carefully.
Check the centralized lubrication tank and head lubrication tank for the oil level. Always keep the recommended lubricants at proper levels.
Check to be sure that the water reserved in the air filter bowl completely drained.
Check to be sure that pressure is correctly built-up: for example, slideway lubrication unit 3 kgf /cm2 supply air 5 kgf /cm2
Check the lathe machine and piping runs for oil leakage. If oil leakage is found, take necessary measures.
Chuck the coolant system and coolant tanks and remove all foreign matter if any.
Check the amount of coolant and replenish if necessary.
Check to be sure that the indicator lights on the operation panel correctly turn on or flicker.
Weekly maintenance tasks are essential for catching potential issues before they become costly problems.
These checks go a bit deeper than daily upkeep, focusing on components like the tool changer, coolant system, and drive belts.
Carry out daily maintenance. Check and clean tool changer.
Check the spindle front end, tool holders and other attachment for the burrs, cracks and other damages. To Clean around the spindle.
Check the lubrication system and the hydraulic power unit oil level. Replenish the specified hydraulic oil, if necessary.
Monthly maintenance is about tackling the deeper, often overlooked components,
as a result, it could keep your CNC lathe machines running in good condition.
Carry out weekly maintenance.
Clean inside the electrical control cabinet and CNC equipment and replace filters if they are considerably dirty.
Check the machine level. Also check the lock nuts on the leveling block bolt and anchor bolts for tightness.
Clean the air filter. If necessary, to replace it. Never use thinner or similar agents in cleaning the air filter.
Clean the slide ways wipers. If necessary, to replace them.
Check to be sure that the solenoids and limits switch can correctly function.
Clean the in-line filter in the headstock lubrication unit.
Check to be sure that wiring is properly done without looseness or disconnection.
Check to be sure that the interlock devices and timers can function normally.
Drain the coolant, clean inside the tank and then fill the coolant tank with new coolant oil.
Annual maintenance focuses on the comprehensive upkeep of your CNC machine to ensure excellent performance throughout the year.
Carry out monthly maintenance.
Clean the CNC equipment, electrical control unit and full machine.
Inspect Spindle Health
Check Software update
Check full machine calibration
Replace worn components
Change the hydraulic oil in the hydraulic power unit and the lubricant for the spindle head and the table.
Before supplying new hydraulic oil or lubricant, clean the inside of the tanks.
Clean all the motors.
Check the bearing in the motor if has noise. If necessary, to Replace these bearings.
Visually check the electrical devices and control panel.
Check each indicator and the voltmeter if it is correct. If necessary, to Adjust or replace them.
Flash the lubrication pump, clean the head lubricant filter according the instructions provided by manufacturer.
Check the CNC machine movement and functions using a test tape.
Measure the backlash in each drive shaft. If necessary, to adjust for compensation.
Execute an emergency stop or switch off the main power supply before carrying out maintenance and inspection work.
If the machine is still in an operable condition during this work and for example, a sensor is inadvertently touched,
the machine may move due care is therefore required. before operating the lathe machine,
make sure that there is no obstacle to motion in the vicinity of the CNC machine.
(5.1) Maintenance and inspection work must be performed without tail in order to keep the machine operating
at its highest performance and make it safe to operate at all times.
(5.2) Device maintenance and inspection plan and carry it out on a regular basis.
(5.3) Proceed with maintenance and inspection as planned even if this interferes with the production plan.
(5.4) Before starting on the maintenance and inspection work, turn the power switch off.
(5.5) When working inside the electric control cabinet or repairing the machine,
to set the power switch to the OFF position and lock it.
(5.6) Do not use air to clean the machine.
This may cause dust or sand particles to cover the bearing or slide ways.
(5.7) Use only lubricating oils which are recommended by manufacturer.
In order to operate such CNC Lathe machine correctly, all operators must thoroughly understand the CNC machine.
To keep the machine operating at its well condition, it must be inspected every day.
If an abnormality is discovered during daily inspection, it must be reported to the supervisor
and the person responsible for machine maintenance. Quick action should be taken.
For problems that cannot be repaired by the user or those for which the cause cannot be isolated,
please contact our MAXNOVO Machinery Experts.
- Daily Replenishing Oil and Inspections by the machine Operator
- Maintenance and Repairs by maintenance Mechanics
- Service Request Call to our MAXNOVO MACHINE Representative
(5.8) Lubricating Oil and Supplying Coolant
Always use the types of oil specified. Do not mix the oil of different brands, even if they are indicated as the equivalent oil.
Original maker will not be responsible for any problem arising from the use of oil not specified by.
(5.9) Storing Oil
If oil is stored in user's workshop, observe the following points to prevent the oil from being degraded.
it is advisable to obtain only the amount of oil to 4-10 be used.
store the oil in a place where it will not be subject to direct sunlight or rain.
Keep the oil clean. No dirty or water should be allowed to enter the oil storage tank.
Never use degraded oil or oil with foreign matter or water.
If middle tank is used. Clean the tank at least once a year.
(5.10) Cautions when Replenishing Oil
Always use the same oil jug for the same oil. Never use a jug used for different brand oil.
Never remove the filter from the filter port when supplying oil.
If oil other than specified by original maker, used mistakenly or different brands of oil are mixed.
Clean the tank and piping immediately.
(5.11) Disposing Waste Oil
Disposing factory waste without legal permission is not allowed.
Always ask the service company when disposing oil.
(5.11) Supplying Oil
Supplying Oil to the Slid way lubricating Oil Tank
Check the lubricating oil tank volume with the oil level gage installed on the lubricating oil tank.
Remove the cap on the oil supply port.
Supply the specified lubricating oil from the oil jug while checking the oil level with the oil level gauge.
(5.12) Supplying Coolant to the Coolant tank
Press the coolant off switch to stop coolant supply.
Check the coolant tank volume with the oil level gage.
Supply coolant from the top of coolant tank.
(5.13) Greasing the Chuck Master Jaws
Stop the spindle
Supply grease from the three grease cups around the chuck.
Coolant splashed on the chuck will wash aways the grease. Therefore, supply grease as often as possible.
(5.14) Check before Daily Operation
Before turning on the power
Make sure that there are no abnormalities for external piping, cables
and coating intact, all doors closed.
Check the shop floor around the machine for the hazards from such as coolant, hydraulic oil, lubricating oil, and obstacles.
Make sure that the turret is not at the travel end in the x-axis direction.
(5.15) After Turning on the Power
Listen to the sound of the hydraulic unit when it is operating.
Make sure that the cooling fan in the electrical cabinet is operating.
Make sure that the switches and indicators on the operation panel
operate correctly.
Check the screen display: no alarm should be indicated.
Symptom |
Possible Cause
| Repair Method |
Lubricant level down to Bottom while spindle is running | Oil insufficient | Add oil into headstock |
Ump path clogged | Remove the object that clogs the pump outlet | |
Rails on bed turn black | Automatic lubrication system out of lubricant | Add lubricant |
Inappropriate oil properties | Immediately replace the oil | |
Oil tube clogged | Replace tube or clear the clogged object | |
Cylindrical machined into conical shape | Spindle head slick | Adjust the spindle accuracy |
Inaccurate machining between two centers | Poor accuracy on center | Adjust Spindle Head, Tailstock and Center |
Steps appear on the Spherical workpiece surface | Inaccurate backlash compensation | Backlash offset and adjust |
Too much High temperature rise during spindle running | Invalid greasing | Check if there is oil leaking from the oil gauge |
Proper maintenance of a CNC lathe is essential for ensuring high precision, operational safety, and a long service life.
By following the manufacturer's service schedule and performing routine checks, so you can prevent unexpected breakdowns.
By sticking to these maintenance practices, you will ensure smooth and efficient operation, minimize the risk of expensive repairs,
and protect the long-term value of your CNC Lathe Machines.
