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Tools required: 8 mm Hex driver for M5 bolt, T10 Torx driver for M3 screw.
1.
Remove the three existing M5 bolts from the AC input
assembly using the 8 mm Hex driver. Also remove the M3
screw in the chassis to the right of the ground stud using the
T10 Torx driver.
2.
Position the surge protector over the AC input assembly and
attach it using the M3 35 mm long screw provided with the
surge protector (item A). Torque the screw using the T10
Torx driver to 9 in-lbs.
3.
Install the AC line ring lugs (L1, L2, and L3) to the surge
protector (item A). Use the three M5 35 mm long bolts
provided with the surge protector (item C), and three lock
washers originally provided with the AC input assembly (item
B) to attach the wires and the surge protector to the AC
input assembly (item B in Step 2). Torque the bolts using the
8 mm Hex driver to 20 in-lbs.
NOTE: Do NOT use the additional lock washers provided with the original M5 bolts, or the original
M3 screw provided on the unit.
4.
If you have not already done so, install the ground wire ring lug over the ground stud located
directly below the AC input assembly (item C in Step 2). Torque the M5 combination nut using the 8
mm driver to 20 in-lbs.
5.
Install the AC input cover and strain relief as described under Power Cord Installation.
Keysight RP7900 Series Operating and Service Guide
2 Installing the Instrument
73
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