ProcedureCouch/Table (Vertical)Replace

Replace the hydraulic unit (cylinder, pump, oil tank)

Replace the Aquilion 16 patient couch's vertical-drive hydraulic unit — cylinder, motor pump, and oil tank — as a single assembly, when the height (vertical) drive malfunctions.

Applies to

Aquilion 16 (TSX-101A)

Personnel

2 technicians · Intermediate-to-advanced — a full hydraulic-assembly replacement (cylinder, motor pump, oil tank) with a torque-critical fastener (9.8 N·m with screw-locking compound), a fragile hose with a stated minimum bend radius (45 mm), hand-rotating the ram to align a bolt hole, and an air-bleed step verified against a reference photograph (skill assessment derived from procedure content — not an OEM-stated skill level).

Steps

25 steps

Source

2D201-062E*F p.55-61

Tools & parts

Item	Part number	Qty
Straps	n/a in source	2 × 3 m
Support bars	n/a in source	2 × 50 mm × 50 mm × 600 mm
Phillips screwdriver	n/a in source	No. 2, medium size
Hexagonal wrenches	n/a in source	3 mm and 5 mm
Hammer	n/a in source	—
Punch	n/a in source	—
Screw-locking compound	n/a in source	—
Wire nipper	n/a in source	—
File	n/a in source	—
Hydraulic unit, factory-supplied replacement	n/a in source	1

Safety

NOTICE

Hazard: Hydraulic hose bent tighter than its minimum permissible bending radius (45 mm) while being handled during mounting.

Consequence: The hose is permanently damaged and can no longer be used.

Avoidance: Be extremely careful when handling the hydraulic hose; do not bend it tighter than the 45 mm minimum permissible bending radius.

Full step-by-step for Replace the hydraulic unit (cylinder, pump, oil tank)

All 25 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 steps Change the vertical stop positions (height photosensor adjustment)2 steps Jack Up the Patient Couch When It Will Not Rise From the DOWN Limit4 steps Lower the Patient Couch from a Raised Position After a Failure (200 VAC Jig)4 steps Route the internal cables at the lifting linkage8 steps Troubleshoot: couch will not go up/down and oil leakage9 steps

View all Aquilion 16 (TSX-101A) guides

Source: 2D201-062E*F p.55-61. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.