Haas VF Series Service Manual

1-15-96 96-8100
HAAS AUTOMATION, INC.
95
MECHANICAL SERVICE
SERVICE MANUAL
VF-SERIES
3. Remove the hard stop from the bearing housing on the lead screw.
4. Loosen the 10-32 x ½" SHCS and remove the clamp nut from the bearing support end of the lead screw.
5. Loosen the six ¼-20 x 1" SHCS and remove the bearing sleeve from the motor housing. Push on the mill table or the
opposite end of the lead screw to loosen.
CAUTION: DO NOT PRY THE BEARING SLEEVE AWAY FROM THE MOTOR HOUSING. DAMAGE TO THE SLEEVE,
BEARING, OR THE LEAD SCREW WILL RESULT.
INSTALLATION -
1. Ensure all mating surfaces on the bearing sleeve, motor housing, nut housing, and ball nut are free of dirt, burrs,
grease, or other contaminants.
CAUTION! MATING SURFACES MUST BE CLEAN OR MISALIGNMENT MAY OCCUR, SERIOUSLY AFFECTING THE
PROPER OPERATION OF THE MACHINE.
2. Slide the bearing sleeve into the motor housing and start all six ¼-20 x 1" SHCS into the motor housing. (Place a
drop of blue Loctite® on each of the SHCS before inserting.)
3. Move the table to the rear of its travel.
4. Tighten the six ¼-20 x 1" SHCS that attach the bearing sleeve to the motor housing.
5. Loosely install the clamp nut on the lead screw at the motor housing end.
NOTE: For the angular contact design bearing, no pre-load is necessary (follow the procedure in "X-axis bearing sleeve"
section).
6. Reinstall the axis motor.
7. Check for backlash in the Y-axis lead screw (Troubleshooting section) or noisy operation.
11.3 Z-AXIS BEARING SLEEVE REMOVAL -
WARNING! ALWAYS BLOCK THE HYDRAULIC CYLINDER WITH SHAFT SROP BLOCK BEFORE SERVICING ANY Z-AXIS
COMPONENTS.

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)