Gantry Top Covers Removal and Re-Install

Prerequisites

Overview

This procedure explains how to remove and re-install the CT Gantry top covers.

Potential for Shock.
Voltage may be present. Potential for injury if covers removed and power is left ON.
Always remove the right side cover first, and turn OFF power at the service switches.

Always turn OFF the HVDC before the 120 VAC. Turning OFF 120 VAC power before HVDC power can result in equipment damage.

Turn OFF the three (3) main power switches (HVDC, 120VAC, and Axial Drive) on the Service Switch Panel (SSP). See Figure 1.

Figure 1. Service Switch Panel
Disconnect the power cable that connects the fans on the top cover to the gantry.

note:
The cooling fans are now mounted on the top covers.
Unscrew two screws that secure the top cover with Philip top screwdriver. See Figure 2.

Figure 2. Screws Securing Top Cover
Take the end of the top cover nearest to the side cover and tilt upwards.
Slide the cover down to disengage the tab from the mounting bracket.

Figure 3. Top Cover Tabs and Bracket
Lift the cover clear and repeat the above steps for the other cover.

The top cover consists of two (2) pieces. Install the front and rear gantry covers, if not already installed.

Take one of the top covers and align the tabs on the cover with its associated bracket. Lift and slide the cover into place. Secure 2 screws on the top cover.
Take the other top cover and align the tabs on the cover with its associated bracket. Lift and slide the cover into place. Secure 2 screws on the top cover.
Connect the cable from the fans to the gantry.

Always turn ON the 120 VAC before the HVDC. Turning ON HVDC power before 120 VAC power can result in equipment damage.

No finalization steps.