VMC - Spindle - Drawbar - Force Measurement

Applies to machines built from: 
January, 1989

VMC - Spindle - Drawbar - Force Measurement

This procedure tells you how to measure the force of the drawbar. The drawbar force holds the tool in position in the spindle.


Remove the tool holder from the spindle.


Do these steps to prepare the spindle:

  • Clean the spindle taper with a clean cloth rag.
  • Add a coat of all-purpose machine oil to the spindle taper with a lightly oiled cloth rag.
  • Use a flashlight to visually inspect the spindle taper for signs of wear and damage.


Clear the EMERGENCY STOP. Push RESET for each alarm.

Assemble the drawbar force gage according to the manufacturer’s instructions. Put the gage into the spindle.

Measure the drawbar force and compare it to the Drawbar Force Reference Table.



If drawbar force is less than the specification, replace the drawbar. You cannot replace drawbars for inline spindles. You must replace the spindle. Speak to your Haas Factory Outlet for drawbar or spindle replacement.

Tools Required

Drawbar force gage, (P/N D1001-H) or equivalent
Clean cloth towel
all-purpose machine oil

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.