Preventive MaintenanceManufacturing
CNC Machine Maintenance Checklist Template
Maintain precision and reliability with comprehensive CNC machine maintenance for mills, lathes, and machining centers.
Free Template
Overview
CNC machines require meticulous maintenance to maintain precision and prevent costly downtime. This checklist covers spindle systems, axis drives, coolant systems, lubrication, electrical components, and safety devices. Regular maintenance ensures part quality and extends machine life.
Key Benefits
Complete Checklist
Spindle System Inspection
- Check spindle runout with dial indicator
- Listen for unusual spindle bearing noise
- Check spindle taper condition and cleanliness
- Verify tool clamping force
- Test spindle orientation function
- Check spindle cooling system operation
- Inspect spindle air purge if equipped
- Verify spindle speed accuracy
- Check for spindle vibration at speed
- Document spindle hours and condition
Axis Drive Systems
- Check axis backlash compensation values
- Inspect ballscrew condition and lubrication
- Check linear guide condition and wipers
- Test axis positioning accuracy
- Verify axis repeatability specifications
- Check servo motor operation and tuning
- Inspect axis covers and way covers
- Test rapid traverse speeds and smoothness
- Check for unusual axis noises
- Verify axis limit switches function
Coolant System
- Check coolant concentration with refractometer
- Inspect coolant for contamination and odor
- Clean coolant tank and remove chips
- Check coolant pump pressure and flow
- Inspect coolant nozzles and lines
- Clean coolant filtration system
- Check through-spindle coolant if equipped
- Verify coolant temperature control
- Inspect chip conveyor operation
- Check mist collector if equipped
Lubrication System
- Check way lube reservoir level
- Verify automatic lubrication cycle
- Inspect lubrication lines and fittings
- Check lube pump operation and pressure
- Verify lubrication reaching all points
- Inspect grease fittings and add grease
- Check gearbox oil levels
- Change hydraulic oil per schedule
- Inspect oil quality and contamination
- Document lubrication completed
Electrical and Control System
- Check control cabinet cooling fans
- Inspect electrical cabinet filters
- Verify battery backup condition
- Check control parameters against backup
- Test all axis home positions
- Verify tool offset data integrity
- Check work offset data
- Test program loading and execution
- Inspect pendant and operator panel
- Check cable routing and connections
Safety Systems
- Test emergency stop from all locations
- Check door interlock function
- Verify guard door seal condition
- Test safety light curtains if equipped
- Check axis overtravel limits
- Test spindle interlock function
- Verify safety labels are readable
- Check chip guards and splash protection
- Test auto power off function
- Document all safety tests completed
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