NCR S2 series SelfServ ATMs including 6623, 6625 and 6627 models are widely deployed across global retail and bank branch locations. With heavy‑volume daily cash dispensing and note transport cycles, mechanical consumables and sensor assemblies gradually degrade over time. For ATM maintenance teams, knowing which components wear fastest helps you cut on‑site troubleshooting hours, reduce repeated service calls and minimize ATM downtime.
Many field technicians only replace parts after complete failure. However, preventive part rotation during scheduled maintenance can greatly lower emergency breakdown risk. Below we sort frequently‑replaced S2 spare parts by module, with typical fault symptoms and corresponding part numbers for your quick reference.
SNT (Sensor Note Transport) Module Wear PartsThis is the highest‑failure unit inside NCR S2 dispenser. Rubber timing belts will crack or stretch; sensor PCBA may suffer dust corrosion or trace burn‑out.
S2 SNT Pump Belt PN: 009‑0029305 / 0090029305. Symptoms: transport slip, random note jam, noise from SNT compartment.
SNT Transfer Basic Sensor Board PN: 445‑0740237 / 4450740237. Symptoms: wrong note counting, intermittent transport error, failure to detect banknote position.
Flex Interface PCB Board PN:445‑0736349 /4450736349. Symptoms: unstable module communication, random SNT offline error.
Pick Module Mechanical ComponentsPick module handles banknote feeding out from cash cassette. Plastic assemblies, shafts and rubber friction parts wear rapidly under continuous operation.
Shaft Flicker Assembly PN:445‑0663266 /4450663266. Symptoms: banknote double‑feed, multi‑note picking error, skew feeding.
D‑Wheel Assy PN:445‑0632954 /4450632954. Symptoms: failure to pick notes from cassette, frequent “note missing” alarm.
Presenter Deflector PN:445‑0665043 /4450665043. Symptoms: banknote stuck at presenter outlet, notes cannot be delivered to customer.
General Maintenance Tips for NCR S2 FleetRegular interior dust cleaning cannot replace worn mechanical spare parts. If you still receive same error codes after full cleaning and sensor calibration, physical part replacement is required. For maintenance companies managing large ATM fleets, we recommend keeping above high‑wear parts in local stock. Short lead‑time spare inventory makes emergency site repair much more efficient.
When purchasing NCR S2 spare parts, always double‑check exact part number. Many S2 assemblies look physically similar but are not cross‑compatible. Mix‑matching wrong part numbers will trigger new transport failures. Both original and well‑tested compatible units are available for field swap installation.
If you are sourcing reliable NCR S2 ATM spare parts for your maintenance business, you can browse our related product categories for belts, sensor boards, shaft assemblies and presenter plastic components. We supply fully‑tested spare units with neutral packing and fast worldwide shipment for financial equipment repair projects.
2026-09-03
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FAYVAN
