Toto spares, Toto parts, Toto spare parts, Spare code no : TC366-H2 lock
hat it is
- The part is labelled “TC366‑H2 插銷 (1入)” in the TOTO Taiwan service parts list. “插銷” means pin / latch / locking pin.
- It appears under a “TC366” group, so it belongs to or is associated with TOTO model(s) using the TC366 / seat & cover / hinge / related hardware family.
- It’s sold as “1‑piece (one) insert / pin”. So, just that small locking / hinge pin.
Likely Function / What It Does (“Lock”)
Given it is a “pin / 插銷 (locking pin)” in the context of a seat & cover / hinge set, its usage / purpose is probably one of the following:
- Acts as a hinge pivot pin: The pin that goes through the hinge bracket to allow the seat or cover to rotate (open / close) about that pivot.
- Acts as a lock / latch in the hinge assembly: Might secure parts of the hinge (e.g. lock the seat in place, or lock the hinges to the bowl, preventing disassembly or slipping).
- Prevents side‑to‑side movement: The pin likely keeps the hinge from moving laterally, ensuring the seat / cover stays aligned.
Where & How It’s Used
- It will be installed inside the hinge mechanism of the TC366 seat / lid assembly. The hinge arms have moving parts; one of these parts is the hinge pin that holds them together.
- During assembly / repair you might slide the pin in to connect two parts of hinge, perhaps secure the soft‑close mechanism stage, or keep the cover‑holder from detaching.
When & Why You Might Need This Part
You would replace or use this “lock / pin” in cases such as:
- The original hinge pin is worn out, broken, bent, or corroded → causing the seat/cover to wobble or fall off.
- The seat or cover doesn’t stay aligned or “locks” well because the pin has slipped or the hinge is loose.
- During repair / maintenance, the pin may have been lost or damaged.
What to Check / Installation Tips
If you are installing / replacing this TC366‑H2 pin / lock:
- Make sure you have the correct orientation in the hinge mechanism: The pin should go through the hinge bracket holes tightly but not so tight that movement is blocked.
- Check for corrosion, or deformation in the pin holes or hinge arms; if they are worn, even a good pin may not fix alignment well.
- Use the correct size and fit — the pin should match diameter and length of the hinge bracket holes.
- Ensure that once the pin is inserted, any retaining clip or cap is also installed (if the hinge design uses one) to secure the pin so it doesn’t slide out.
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