The cover of the Glidecam 1000/2000/4000 central bearing can be loosened via a size 10 torx head screw, then four small set screws (size 1/16” allen wrench) found on the intersecting line, perpendicular to one another on the sides of the central bearing, can be adjusted to calibrate the alignment, centering the bearings alignment resulting in greater performance.
See the following link for more information on Torx tools; www.torxtools.com
*A bubble level is recommended for during calibration. It is also advisable that during calibration the vertical balance is at 2.5 to 3 second drop time.
The bubble should be level at 0, 90, 180, and 270 degrees;
Horizontally balance the Glidecam 1000/2000/4000 at 0 degrees.
Turn camera 180 degrees; if out of alignment adjust the downward side of the yoke via the small set screws by turning the screw clockwise, in-turn “pushing” the central bearing in the opposite direction. Start by only making 1 to 2 rotations of the adjustment set screws, as this is incremental adjustment, (.032” per rotation) and does right slight adjustments. Move to step 3.
During this process you must also loosen the counter set screw back-stop, opposite screw from the ‘active adjustment set screw’, one on the ‘downward’ side of the yoke.
Then rotate Glidecam 1000/2000/4000 back to 0 degrees and horizontally balance using the camera.
Then rotate back to 180 degrees, if still out of alignment repeat steps 2-4.
Repeat steps 2-4 for 90 and 270 degrees. (this may take several attempts)
Once balanced on the 0-90, and 180-270, lock torx head screws on cover.
Gimbal calibration video