GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Page 38 Chapter 1 - Preface
1.5.3 Gantry Rotation (Mechanical and Gravitational Energy)
1.5.3.1 Disable Gantry Rotation
1.) Remove the right side gantry cover and place in a safe location.
2.) Disable the Axial Drive from the STC Backplane.
3.) Engage the Gantry rotational lock (shown in Figure 1-2) by turning the handle in a clockwise
direction until the Gantry no longer moves.
Figure 1-2: Gantry Rotational Lock
Note: The locked handle is shown in Figure 1-3 without LOTO devices since there is no place to attach
them.
Figure 1-3: Gantry Rotation Lock Out
4.) Remove power from the system as described in Section 1.5.2.1 on page 37.
1.5.3.2 Restore Gantry Rotation
1.) Verify all test equipment is removed from the Gantry and all components are installed and
torqued per service procedures.
2.) Notify affected personnel that equipment will be re-energized and LOTO devices removed.
3.) Remove Gantry LOTO tag, and disengage the Gantry rotational lock by turning the handle in
a counterclockwise direction.
4.) Restore power to the system as described in Section 1.5.2.2 on page 37.
5.) Enable the Axial Drive.
Shown Unlocked
Handle
Shown Locked
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