Replacing a dock switch

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	15 minutes	-


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Nonmagnetic Titanium Service Tool Kit, Small Set	1	5113258	-


Consumables
Item	Quantity	Part number	Manufacturer
Loctite #243	As required	5415261-3	-


Replacement parts
Item	Quantity	Part number	Manufacturer
SPDT Snap Action Switch	1	46-136334P49	-


Required conditions
The dock cover is removed.

Warning

Ferrous material hazard

The table dock components are ferrous and can become dangerous projectiles within the magnetic field.

The dock must be removed from the magnet room prior to removing any parts from the dock.

Select the switch to be replaced:

Topic ID: task_s2j_pnb_wjb

The motor-on switch is located in the base of the table dock.

Remove the two screws securing the motor-on wire terminal lugs to the motor-on switch.

Note: It is recommended that the wires are marked prior to disconnecting them from the switch.

Figure 1. Motor-on switch
1 Motor-on switch
2 Fish paper
3 Motor-on NO wire
4 Motor-on COM wire
5 Switch screw
Remove the two screws securing the switch to table dock.
Remove the switch from the dock.

Note: Retain the fish paper for installation.
Apply Loctite #243 to the two switch screws.
Install the switch into the dock with the fish paper between the switch and the dock wall.
Install the two screws securing the switch to the dock.

Note: Tighten the screws 30 degrees past free spinning.
Install the terminal lugs to the switch.
Install the two screws securing the terminal lugs to the switch.

Topic ID: task_wh2_rnb_wjb

The docked and table ID switches are located in the dock top cover. The replacement procedure applies to either switch.

Remove the two screws securing the switch wire terminal lugs to the switch.

Note: It is recommended that the wires are marked prior to disconnecting them from the switch.

Figure 2. Docked and table ID switches
1 Switch screw
2 Table ID switch
3 Table ID NO wire
4 Table ID COM wire
5 Docked NO wire
6 Docked COM wire
7 Docked switch
Remove the two screws securing the switch to table dock cover.
Remove the switch from the cover.
Apply Loctite #243 to the two switch screws.
Install the switch into the dock cover.
Install the two screws securing the switch to the cover.

Note: Push the switch toward the shaft while tightening the screws.

Note: Tighten the screws 30 degrees past free spinning.
Make sure both switches activate and deactivate by listening for an audible click while cycling the shaft in and out at least three times. Rotate the shaft approximately 120 degrees for each cycle.
Install the terminal lugs to the switch.
Install the two screws securing the terminal lugs to the switch.