The Shimadzu DC Motor Stator 35000 1003 is an original repair part designed for use in Shimadzu turbomolecular pumps of the TMP‑803 through TMP‑1003 series, including the commonly serviced TMP‑1003. Engineered as a direct replacement for factory stators, this component restores precise rotor magnetic coupling and rotational stability critical to high‑vacuum performance.
Key Features
- Official OEM part number: 35000 1003, manufactured to original Shimadzu tolerances.
- Purpose-built for DC motor assemblies in TMP series molecular pumps—repair and refurbishment use.
- High grade electrical windings and insulation for reliable operation under vacuum conditions.
- Form‑fit compatible with the motor housing and mounting interfaces of TMP‑803 ~ TMP‑1003 models.
- Balanced to minimize vibration and ensure long service intervals when installed correctly.
Compatibility
Intended primary application: TMP‑1003. Also fits the TMP‑803 through TMP‑1003 molecular pump family when the original stator part number matches.
Typical Use Cases
- Field repair of pumps returned for mechanical or electrical failure where the motor stator windings or lamination stack are compromised.
- Preventive replacement during major pump overhauls to restore peak rotational accuracy and extend pump life.
- Stocking as a spare part in service centers that handle Shimadzu TMP series pumps.
Installation Guidelines (Summary)
- Work in a cleanroom or clean bench environment to avoid particulate contamination of the vacuum cavity.
- Disassemble the pump motor assembly following the manufacturer's service manual; observe correct tooling and anti‑static precautions.
- Inspect the rotor, bearings and housing for wear or damage; replace bearings if radial play is present before installing the stator.
- Fit the stator into the motor housing ensuring alignment of dowel pins and connector locations; do not force the part into place.
- Reconnect electrical terminals with correct polarity and secure all fasteners to specified torques in the service manual.
- Perform a bench spin test at low voltage to confirm smooth rotation before pump re‑assembly and vacuum testing.
Maintenance & Best Practices
- Only handle the stator with clean gloves; oils or residues can impair vacuum compatibility.
- Inspect windings visually for discoloration or debris; if found, investigate source (overheating, contamination).
- When replacing the stator, always check associated bearings, seals and rotor balance—motor issues often involve multiple components.
- Keep a single stator dedicated to a given pump family to simplify spares management and avoid mismatched parts.
Troubleshooting Checklist
- Symptom: Excessive vibration after stator replacement — check rotor balance and axial clearance.
- Symptom: Motor does not start — verify electrical continuity of windings and proper connector seating.
- Symptom: Overheating — confirm insulation class, ensure ventilation paths are unobstructed and that the pump is not being overdriven.
- Symptom: Increased leak rate after reassembly — recheck seals and cleanliness of sealing surfaces.
Ordering & Part Information
Order by OEM part number: 35000 1003. We recommend confirming model compatibility (TMP‑803~TMP‑1003) before purchase. For repair centers and distributors, we provide detailed inspection checklists and optional pre‑installation testing services.
For related spare items, repair kits, and service options dedicated to Shimadzu pumps, see Shimadzu molecular pump non-standard maintenance parts. If you are planning a full motor refurbishment, you may also be interested in our selection of associated bearings and rotor assemblies available through our parts portal: Shimadzu molecular pump non-standard maintenance parts.
Packaging, Shipping & Warranty
- Each stator is shipped in antistatic, cleanroom‑grade packaging with protective supports to prevent lamination stack damage.
- Shipping options include express and insured freight; special crating available for international transport.
- Warranty terms vary by vendor—typically cover manufacturing defects for a defined period after installation. For warranty support and return authorization, refer to our service page: Shimadzu molecular pump non-standard maintenance parts.
Safety Notes
- Disconnect power and discharge capacitors before motor disassembly.
- Follow electrostatic discharge (ESD) precautions when handling electronic or magnetic components.
- Use proper lifting tools for pump assemblies; stators themselves are not heavy but are sensitive to impacts.
If you require detailed electrical drawings, winding specifications, or dimensional CAD files for integration into a service procedure, please request the technical packet when ordering part 35000 1003. For repair planning and quotes, contact your parts supplier or authorized service partner and reference the TMP model and stator part number to ensure accurate matching.
