Replace the gantry rotation motor
Remove and replace the rotation drive motor — the stationary-side motor that drives the small pulley, timing belt, and large pulley train turning the Activion16 gantry's rotation section (see Related: main-frame theory). Do this when the motor itself is confirmed bad (a documented cause in the rotation-section troubleshooting chart — motor does not rotate, or does not turn even by hand with the br
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| Rotation drive motor (replacement) | — | 1 |
| Small pulley | — | 1 |
| Motor securing bolts | — | not specified in source |
| Belt-tension adjustment metal fitting — securing screws | — | not specified in source |
Safety
Hazard: Servicing the rotation-drive motor and belt-tension hardware with gantry power live
Consequence: Electric shock, or injury from unexpected operation of the drive while covers are open
Avoidance: Complete step 1 (turn OFF gantry power supply breaker NFB1) before opening the covers in step 2 and before loosening any hardware in steps 3–5 — this is this task's own execution of the manual's general power-isolation precautions (G-W01/G-D02)
Hazard: Loosened screws (belt-tension fitting, motor securing bolts) left untightened before the gantry next rotates
Consequence: Loose screws or hardware can fly off during rotation, resulting in personal injury
Avoidance: Before rotating the gantry — during the step 6 tension check or any use afterward — confirm every screw loosened in steps 3–4 is tightened firmly
Full step-by-step for Replace the gantry rotation motor
All 8 steps are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated Gantry guides
Source: 2D201-112EN*D §1.4.8 (pp.82–83) — Replacing the rotation motor. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.