Touch-n-Go (TnG) switch replacement

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	60 minutes	45 minutes

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Non Magnetic Tool Set	1	-	-	-

Table 3. Replacement parts
Item	Quantity	Effectivity	Part number	Manufacturer
TnG Switch	1	-	Refer to FRU Manual	-

Table 4. Safety

DANGER

STRONG MAGNETIC FIELD!

FERROUS MATERIALS CAN BECOME DANGEROUS PROJECTILES IN THE PRESENCE OF THE MAGNETIC FIELD PRODUCED BY THE SIGNA MAGNET

Do not Bring any ferromagnetic tools or equipment into the magnet room.

Perform the following steps to remove 2 covers.
1. Remove 5 screws and slide out the Motor Cover.
2. Remove two rubber caps, remove 6 screws, and remove side cover.
Figure 1. Cover removal
Perform the following steps.
1. Remove 11 nuts.
2. Remove a connector.
3. Take out TnG Switch Assy.
Figure 2. TnG removal
Align the location of TnG Switch Assy and restore it per following steps.
1. Insert 11 studs of TnG Switch Assy into the holes.
2. Loosely screw the 11 nuts to the 11 studs.
3. Adjust the TnG Switch Assy to make the TnG surface aligned with Table top FRP cover.
4. Tighten the 11 nuts.
5. Observe if the TnG surface is aligned with table top FRP cover or not. If not aligned, perform Step 3.b through Step 3.d until the surface is aligned, then execute next step.
6. Connect the TnG cable connector.
Figure 3. TnG switch assembly location alignment
Restore Patient Table by reverse order of removal.