ProcedureX-ray & HV (SRU generator)Replacement/FRUReplace
Remove and remount the SRU unit
Remove the SRU unit from its mounting frame by unbolting it at two access positions, then remount it in reverse — refitting the same M10, M6 and M4 hardware and torquing the M10 bolts to the specified value.
Applies to
Aquilion 16 (TSX-101A)
Personnel
Basic-to-intermediate — the job is unbolting/rebolting the SRU unit at two access positions using three fastener types (four M10 hexagonal socket-head bolts, three M6 hexagonal head bolts, three M4 screws), plus a temporary L-shaped support plate on remount and a torque-wrench pass on the four M10 bolts once they're refitted. No electrical work, cable handling, or calibration step is stated in this section — the skill floor is set by handling a heavy unit across two positions and getting fastener sequence/torque right, not by any electrical task. (Skill assessment derived from procedure content — not an OEM-stated skill level.)
Steps
11 steps
Source
2D201-064E*H p.115-116
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| Hexagonal socket-head wrench (size not stated in source) | n/a in source | 4 bolts |
| Hexagonal wrench (size not stated in source) | n/a in source | 3 bolts |
| Driver for M4 screws (type not stated in source) | n/a in source | 3 screws |
| Torque wrench | n/a in source | 1 |
| L-shaped plate | n/a in source | 1 |
| Washers and spring washers | n/a in source | 4 each (with the M10 bolts) |
Full step-by-step for Remove and remount the SRU unit
All 11 steps are documented in the FSELIB Aquilion 16 (TSX-101A) service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated X-ray & HV (SRU generator) guides
Identify the defective inverter before replacement0 stepsReplace the inverter in the SRU generator5 stepsError-cause identification flowchart (block test to isolate SRU/HV cable)4 stepsTroubleshoot inverter temperature error and anode/cathode arc0 stepsTroubleshoot kV/mA output faults (Over mA, Under mA, HV overcurrent, Under kV)0 stepsTroubleshoot SRU status error and identify the faulty inverter block0 steps
View all Aquilion 16 (TSX-101A) guidesSource: 2D201-064E*H p.115-116. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.