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P ower Distribution Unit (PDU) Chapter 9: PDU R eplacement Procedures
Tools
• 10 mm socket and ratchet
• T orque driver
• T25 TORX driver
Torque requirements
• PDU mounting screws; 4.77 N -m (42 in -lb)
Replacement unit
• PDU (Motorola model STPN4038)
Prerequisites
Coordinate this repair task with the OMCR operator .
Before you begin
Before you begin, record the pertinent information in T able 9 -2 .
Table 9 -2 Item number replacement list
Item
Number
BTS number
F ailed PDU
PDU replacement procedure
This procedure requires working on or around circuitry which is extremely sensitiv e
to ESD . W ear a conductiv e, high impedance wrist str ap during the procedure. Use
appropriate safet y measures.
9 -4 68P09283A64 -3
FOA SEP 2007