Spindle changeover, Haas VF-2
A live example. This is the real reader, not a picture of it.
Work InstructionRev C
DANGER
Lock out the spindle drive before opening the enclosure door.
Before you start
- 1Confirm the machine is at a full stop and the door interlock is released.
- 2Fit the spindle wrench and back off the drawbar half a turn.
- 3Support the toolholder by hand. It will drop free.
Torque
| Fastener | Torque | Pattern |
|---|---|---|
| Drawbar retaining nut | 95 Nm | Cross, two passes |
| Spindle cartridge bolts | 25 Nm | Star, three passes |
| Coolant collar | 8 Nm | Even |
WARNING
Changed in Rev C: the drawbar retaining nut is now 95 Nm, not 40 Nm. Engineering raised it after the November pull-out.
Torque the drawbar retaining nut to 95 Nm. Do not exceed it.
After the change
- 1Run the spindle at 500 rpm for two minutes and listen.
- 2Check runout at the taper: 0.0002 in maximum.
- 3Log the change on the machine card.