10.3 Home & Tilt Left/Right Sensors
1. Turn the base power on.
2. Tighten the 180° Rotation lock handle, and make sure that the indicator light is lit.
3. Using the hand pendant, drive the tilt mechanism to the right.
4. Loosen the 6-32 cap head screw beneath the sensor bracket and move the bracket
closer to the pillow block until the left/right sensor switch clicks.
5. Using the hand pendant, drive the tilt mechanism to the left. Stop when the home
sensor clicks. The indicator light should light up to confirm that the tilt drive is at
home.
6. Tighten the 6-32 cap head screw.
7. Using the hand pendant, drive the tilt mechanism to the right for about three
seconds.
8. Loosen the 180° Rotation lock handle. The tilt mechanism should drive to the center
and stop.
9. If it drives towards the center but stops before true level, the sensor switch is too
close to the pillow block. Tighten the 180° Rotation lock handle. Loosen the 6-32
cap head screw beneath the sensor bracket and move the bracket away from the
pillow block slightly. Re-tighten the 6-32. Check this readjustment by repeating
steps.
10. If it drives to the center but does not stop, either rocking back and forth or continuing
past lever, the sensor switch is too far from the pillow block slightly. Re-tighten the
6-32 screw. Check this readjustment by repeating steps.
11. If it does not drive at all when the 180° Rotation lock handle is loosened, there is an
electronic fault in the base. Check the wiring to the head end, and if this does not
alter the condition of the base, replace the controller PC board.
Figure 17: 180° Rotation Lock Indicator Light Limit Switch and Lock Handle
MIZUHOSI 2009
38
Sensor Switch
and Bracket
180° Rotation
Lock Handle
NW0498 Rev E