ProcedureCouch/Table (Vertical)Adjust

Change the vertical stop positions (height photosensor adjustment)

Fine-tune where the Aquilion 16 patient couch's vertical travel stops — the Upper and Lower limits, the Height-0/Height-0.5/Height-1/Height-2 interference stops, and the mid-travel Auto-Stop — by repositioning the corresponding height-detection photosensor, a factory-directed fine adjustment rather than a large mechanical change.

Applies to
Aquilion 16 (TSX-101A) — Patient Couch Mechanism volume, source 2D201-062, section 6.2
Personnel
1 technician · Intermediate-to-advanced — factory-directed fine adjustment of the height-detection photosensor positions that set the couch's vertical travel stops; source states this work must be performed according to instructions from the factory, and moving a sensor in the wrong direction is called out as causing trouble; no torque values, meters, or electrical test points are named in this section (skill assessment derived from procedure content — not an OEM-stated skill level)
Steps
2 steps
Source
2D201-062E*F p.63-64

Tools & parts

ItemPart numberQty
Top back cover (patient couch)n/a in source1
Photosensor fixing screwn/a in source1 per photosensor (7 photosensors: PHC21-PHC27)

Safety

NOTICE

Hazard: The selected height-detection photosensor moved in the opposite direction from the one indicated for the intended stop-position change.

Consequence: Source states "trouble will occur" — the affected vertical stop position is set incorrectly (equipment/operation only; no injury stated in source). Level derived by FSELIB per Z535; source states this caution in plain text without a signal word.

Avoidance: Loosen only the fixing screw of the one photosensor being adjusted and move it strictly in the indicated direction; never move it in the opposite direction. Note that this work must be performed according to instructions from the factory.

Full step-by-step for Change the vertical stop positions (height photosensor adjustment)

All 2 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 procedure

Related Couch/Table (Vertical) guides

Adjust the vertical (lowering) motion speed5 stepsJack Up the Patient Couch When It Will Not Rise From the DOWN Limit4 stepsLower the Patient Couch from a Raised Position After a Failure (200 VAC Jig)4 stepsReplace the hydraulic unit (cylinder, pump, oil tank)25 stepsRoute the internal cables at the lifting linkage8 stepsTroubleshoot: couch will not go up/down and oil leakage9 steps
View all Aquilion 16 (TSX-101A) guides

Source: 2D201-062E*F p.63-64. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.