ATS Systems Ultimate Chuck Installation and Operations Manual
Finally for some miscellaneous points.
- Never stand in line with a rotating chuck. Always stand off to one side so that if anything bad happens
it's less likely to hit you.
- I recommend you purchase a dynamic grip force gauge and inspect the grip force of the chuck weekly
and record it. If you note a decrease in grip force it's time to disassemble, clean and inspect the chuck.
Under normal operating conditions it's wise to clean the chuck every 1000- 1500 hours of operation.
So, for a quick review:
___ Avoid standing directly in line with a rotating chuck or workpiece.
___ Don't forget the hazard of using non standard large jaws and even full wide soft jaws. Resulting
centrifugal force may require RPM to be limited.
___ Use only grade 12.9 bolts in new condition for jaw mounting with a minimum of 1½ -2 times
diameter thread engagement.
__ Use only the special ATS hex key to change jaws or chuck will be damaged. Never take your
hand off the key. Never leave key in the chuck as it could fly out if spindle is rotated.
___ Increase hydraulic pressure 30% to achieve same static grip force as most standard chucks.
___ Always position the end of the base jaw inside the safe zone marked on the face of the chuck.
___ Set jaw adjustment to grip the part as close to the start of the jaw stroke as possible, especially
when chucking irregular castings, forgings, etc. As you chuck each part, observe that adequate
jaw stroke remains to grip the part.
__ If drawtube stroke and resulting jaw stroke is less than .050" more than the adjustment pitch, you
need to use half pitch base jaws for hard jaw applications and to take care that you always setup to
grip in the first part of the jaw stroke.
___ Chuck lubrication
Lubricate every 24 hours of operation with two shots of KO5 grease per fitting.
Lubricate with chuck in the fully open (jaws away from centerline) position only.
Fully stroke chuck (10) times after lubricating to distribute grease to internal components.
Fully stroke the chuck 5-10 times after each 50 parts and at the start of the shift Clean
and lubricate jaws whenever jaws are changed, or once per eight hour shift.
As part of a paid installation by ATS Systems, our Service Engineer will complete the following decal
using data for your lathe and hydraulic cylinder (if data is available) and attach it to your lathe for future
reference. This deals with the critical issues of jaw stroke and the use of hard jaws, and grip force.
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