POTENTIOMETER BOARD RJ-13SR YHE-0173 Toyota Air Jet Loom Feeler Timing Spare
Product Overview
Feeler timing board with trimmer, marked RJ-13SR, for Toyota JAT-600, JAT-610, JAT-710 and JAT-810 air jet looms. Item code YHE-0173.
Three markings of this board are in circulation on looms of this generation — RJ-13PR, RJ-13S and RJ-13SR — and they sit in the same position in the cabinet. That is exactly why a spares store ends up with a mixed box and a fitter ends up with the wrong board in hand at 2 a.m. This page is written for that situation: match the marking, handle the board correctly, and verify the feeler after fitting rather than assuming a new board solves the stop. Fitting is a ten-minute job; the cost of getting it wrong is a night of chasing a timing fault that was never mechanical.
Applications & Compatibility
Supplied to weaving mills and loom electrical teams servicing weft feeler timing.
- Compatible with: Toyota JAT-600 air jet loom
- Compatible with: Toyota JAT-610 air jet loom
- Compatible with: Toyota JAT-710 air jet loom
- Compatible with: Toyota JAT-810 air jet loom
- Board marking: RJ-13SR
- Our item code: YHE-0173
- Other markings in the family: RJ-13PR (HL1026), RJ-13S (YHE-0172)
Before removing the old board, photograph the marking and the connector positions. Confirm the cabinet is powered down and the supply has discharged before touching the board, and handle it by the edges: the trimmer and the input stage are both sensitive to static. After fitting, run a few picks at production speed and confirm the feeler responds at the same point in the pick as before — if the response point has moved, the marking is likely mismatched rather than the board being faulty.
Quality Standard
- Marking and board revision checked against the original before packing.
- Trimmer sealed against lint, with the full travel range tested.
- Setting verified to hold under vibration on a running bench.
- Connector positions and pin assignment matched to the original harness.
- Conformal coating against size mist and the humidity of a weaving shed.
- Anti-static bag with foam; boards shipped in rigid cartons, never loose.
- Warranty covers manufacturing defects (case-by-case evaluation). Static damage, incorrect wiring and forced trimmer travel are excluded.

Specifications
| Product | Potentiometer, Feeler Board |
| Item Code | YHE-0173 |
| Original Reference | RJ-13SR |
| Model | JAT-600 / JAT-610 / JAT-710 / JAT-810 |
| Machine Coverage | JAT-600, JAT-610, JAT-710, JAT-810 |
| Product Type | Feeler timing board with trimmer |
| Function | Weft feeler timing and sensitivity setting |
| Related Markings | RJ-13PR (HL1026), RJ-13S (YHE-0172) |
| HS Code | 8537109000 |
| Place of Origin | Shanghai, China |
Order & Shipping Information
- Minimum order quantity: starting from 2 pieces.
- Sample order is acceptable for evaluation on the loom.
- Stock items ship within 5 working days after payment confirmation.
- Neutral export packaging by default; private-label and custom packaging service available.
- Shipping option: DHL / FedEx / UPS express, air freight, sea freight.
- Complete export documents including commercial invoice and packing list will be supplied.
- We ship worldwide to textile markets across Southeast Asia, Central Asia, South America, North America and Europe.

Frequently Asked Questions
Q1: How does RJ-13SR differ from RJ-13S and RJ-13PR?
All three are markings of this feeler timing board used across JAT-600 to JAT-810. They are not interchangeable per machine. Read the marking on the old board and order the same suffix.
Q2: Can I keep one version as a universal spare for the whole shed?
Only if every loom in that shed uses the same marking. Where looms carry mixed markings, stock per marking and label the drawers; a mismatched board reads as a timing fault.
Q3: The feeler responds at a different point after fitting. Is the board faulty?
Most often the marking does not match the machine. Compare with the board removed and confirm the suffix before assuming a defect.
Q4: Any handling precautions?
Power down and let the supply discharge, handle by the edges, and keep the board in its anti-static bag until fitting. Static damage to the input stage is not visible and not covered by warranty.
Q5: What about the warranty?
Warranty is offered against manufacturing defects, evaluated case by case. Static damage, incorrect wiring and forced trimmer travel are not covered.
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