This is Tamco/Toku part number Y10219210 valve knock pin, stocked at Crowder Supply as TK-Y10219210. It directs the flow that reverses the piston in the chipping hammer. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It appears on the THH 6 7 8 9 Chipping Hammer breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
Everything else on that machine is one page away on the full diagram library; complete tools are on the Toku tool catalog. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: Y10219210
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-Y10219210
- Listed on breakdowns for: THH 6 7 8 9 Chipping Hammer
