Haas VF Series Service Manual

1-15-96 96-8100
HAAS AUTOMATION, INC.
89
MECHANICAL SERVICE
SERVICE MANUAL
VF-SERIES
Ø Tighten the SHCS on the clamp nut.
Ø Tighten the clamp nut on the support bearing end of the lead screw until it contacts the bearing,
then tighten further approximately 1/8 of a turn.
Ø Tighten the SHCS on the clamp nut.
15. Reinstall the axis motor.
16. Check for backlash in the Y-axis lead screw (Troubleshooting section) or noisy operation.
10.3 Z-AXIS LEAD SCREW REMOVAL -
WARNING! ALWAYS BLOCK THE HYDRAULIC CYLINDER WITH SHAFT STOP BLOCK. DO NOT MOVE THE SPINDLE
DURING LEAD SCREW SERVICE.
1. Remove the axis motor in accordance with "Z-Axis Motor Removal", making sure to follow all warnings included in
that procedure.
2. Remove the bearing sleeve in accordance with "Z-Axis Bearing Sleeve Removal".
3. Hand-turn the lead screw to move the screw up until the bottom end clears the support bearing by approximately six
inches (6").
4. Disconnect the oil line at the ball nut.
5. Loosen the six ¼-20 x 1" (or ¾") SHCS attaching the ball nut to the nut housing. Remove five of the screws.
6. Remove the last SHCS from the ball nut and lower the lead screw down and to the right of the support bearing, past
the Z-axis way cover. For the VF-6, remove the lead screw from top of column.
USE EXTREME CAUTION! DO NOT DAMAGE THE THREADS ON THE LEAD SCREW.

Haas VF Series Specifications

General

Machine Type	Vertical Machining Center
Control	Haas CNC Control
Z-Axis Travel	20-30 inches (varies by model)
Y-Axis Travel	16 - 30 inches (varies by model)
Spindle Motor	20-30 hp (depending on model)
Tool Capacity	20-40 tools (varies by model)