Mill - Tooling - Maintenance

Applies to machines built from: 
February, 2014

Mill - Tooling - Maintenance

 Dirty, rusted or damaged toolholders may damage the spindle taper. Before you load a tool into the spindle, be sure to clean and repair the toolholder's taper.

Use a scouring pad [2] to remove light rust and dirt. Use a soft stone [3] to repair small dings or high spots on the taper[1]. Clean the toolholder with a lint-free cloth. Examine cutting tools to make sure that they are not worn or damaged [4]. Inspect the retention knob [5] (pull stud) for damage, wear, and proper torque.  
Note: Apply a light coat of grease to the retention knob [5] monthly to lubricate the drawbar. If you use through-spindle coolant (TSC), apply grease to the retention knobs weekly.** Retention knobs have a service life of approximately 6000-8000 hours of use. Failure to change the retention knob can result in toolholder and spindle damage if the retention knob breaks.

Toolholder Damage from a Broken Retention Knob

To help protect the spindle taper from damage, refer to the VMC - Spindle - Taper - Maintenance procedure.

**The recommended intervals to apply grease to the retention knobs are based on the average user. Adjust your maintenance schedule as needed to keep the retention knobs properly greased. 

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.