Haas VF Series Service Manual

96-8100 1-15-96
92
MECHANICAL SERVICE
HAAS AUTOMATION, INC.
SERVICE MANUAL
VF-SERIES
10. Loosely install the clamp nut on the motor housing end of the lead screw.
11. Install the remaining four ¼-20 x 1" (or ¾") SHCS attaching the ball nut to the nut housing. (Place a drop of blue
Loctite® on each of the SHCS before inserting.) Tighten down completely.
12. Reinstall the hard stop at the support bearing end of the lead screw.
13. Tighten the lead screw against the clamp nut as follows:
Ø Tighten the clamp nut on the motor housing end of the lead screw to 15 foot-pounds.
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.
14. Reinstall cylinder shaft stop by hand-turning the lead screw.
15. Reinstall the axis motor in accordance with "Z-Axis Motor - Installation".
16. Check for backlash in the Z-axis lead screw (Troubleshooting section) or noisy operation.
11. BEARING SLEEVE REMOVAL AND INSTALLATION
Please read this section in its entirety before attempting to remove or replace the bearing sleeve.
TOOLS REQUIRED:
SPANNER WRENCH WOOD BLOCK (16" L)
PRE-LOAD FIXTURE
11.1 X-AXIS BEARING SLEEVE REMOVAL -
1. Turn the VMC ON. ZERO RETURN all axes and put the machine in HANDLE JOG mode.

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)