23
031-145-C0-002, Rev. C (12/2018)
3.0 Installation, continued
3.3 Service Power Inserter
Mount the SPI box(es) on the back wall of the Power
Supply compartment.
1. Remove the two screws on the face of the SPI and
lift off the cover to gain access to the seizure screw
assembly.
2. Loosen the seizure screw several turns, so the stinger
will pass through the clamp.
3. Insert the coaxial termination into the output port on
the bottom of the SPI. Ensure that the stinger goes
through the seizure screw assembly.
4. Tighten the coaxial termination.
5. Tighten the seizure screw to 35 inch-pounds.
6. Replace the SPI cover and screws. Ensure the switch
on the top or the SPI is in the ON position, the AUX
position is used only when an alternate power source
is connected to the Jones connector on the top of the
SPI.
Assembly
Seizure Screw
Jones Connector
Fig. 3-8, Removing SPI Cover
Fig. 3-9, Connecting Coax to SPI Output Port
Seizure Screw
Assembly
Side View of SPI Case
Circuit Board
Coaxial Termination
Stinger
Enclosure
Wall
Output
Port
Stinger
Service
Power
Inverter
To prevent arcing, the center conductor (stinger) of the coaxial termination must go fully inside the
seizure screw assembly. Tighten to 35 inch-pounds.
CAUTION!
