ThermaChoice UBT System Service Manual
4 - 8
P/N 01035 Rev. C
Replacement:
1.
Remove the fuse drawer from the Power Entry Module using a flat blade screwdriver.
2.
Remove and verify that fuses are 250V, 1.6 amp fuses. Replace if necessary.
3.
Install the fuse drawer into Power Entry Module.
4.
With the fuse drawer down, position and insert Power Entry Module into rear panel.
5.
Using the #1 Phillips screwdriver and Loctite adhesive #425, install the screws
through the rear panel securing the PEM. Torque the fasteners at 49-51 in./oz.
6.
Install the Power Entry Module Ground wire onto the lower case stud.
7.
Install the keps nut. Torque at 17 - 19 in./lbs.
8.
Install 1 lock washer onto same lower case stud.
9.
Install the equpotential Ground wire onto lower case stud.
10.
Install 1 lock washer onto lower case stud.
11.
Install the Power Supply Ground wire onto the lower case stud.
12.
Position the Ground wire lugs in a radial fashion away from the ISO Board box area.
13.
Install the keps nut. Torque at 17 - 19 in./lbs.
14.
Install the fast-on connector to the Power Entry Module (brown wire to the Power
Entry Module’s “L” terminal – lower right. Blue wire to the Power Entry Module
“N” terminal – lower left).
15.
Install the Power Entry Cable to the Power Supply.
16. Install the ISO box base into the lower case using the 5 fasteners. Torque the
fasteners to 39 – 41 in./oz.
17. Position and install the ISO Board into the ISO box base.
18. Install the ISO box cover and the 2 screws that hold the cover to the box base.
19. Install the upper half of the case, using the Oval security screwdriver to install the
four fasteners.
Assembly, Motor Drive Unit (MDU) 01014
Warning:
Disconnect the AC power from the device before servicing. Failure to observe this
precaution could result in death or injury.
Required Tools: Oval security screwdriver (TR Fastenings, Montgomery Village, MD,
Phone 301-947-1001, Part Description: MonoDrive One), 5/64" Allen wrench, #1
Phillips screwdriver, Loctite adhesive #425, 3/32” Allen wrench
Caution:
The interior of the instrument is ESD sensitive. Use appropriate ESD precautionary
procedures.