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TITLE:
SABRE
™
408 Y-Axis Lead Screw Replacement Procedure
Gerber FastFact #:
2018
Supplied by:
Gerber Hardware Support
Last Modified:
Updated on December 8, 2009 (June 19, 2007)
Summary:
The following procedure explains how to replace the Y-Axis lead screw on a
Sabre 408 Router.
Tools used:
•
Metric Allen Wrench set – “Long-L” type
•
Metric Allen Wrench set – “T handle” type
•
Torque Wrench –
INCH POUND
•
Socket for Torque Wrench – 15mm for Lead screw bolts, ¼” for Chapman bits
•
Metric Chapman Drive set
•
Light duty thread locking compound. LocTite 222 or equivalent and LocTite 245
or equivalent
•
Medium duty thread locking compound. LocTite 242 or equivalent
•
Isopropyl alcohol for clean-up
Referencing 0,0 position
The encoder pulse must be set to its original position after a new lead screw is installed. Before removing the
old lead screw, it is advised to use the pen tool to draw a line in the X direction on the table top. You can then
use this in setting the new lead screw’s 0 position.
Note: In the case of an inoperable lead screw, see fast fact #2041, “Establishing the Y-Axis encoder pulse
position.”
To Reference 0,0 position
1
Turn the Sabre on at the controller.
2
Orient system.
3
Place pen tool in spindle motor (without moving beam from position it stopped at when it finished
orienting).
4
Lower Pen tool to Table top to depress spring in pen so it can draw on table top.
