Throttle Valve Spring, Tamco/Toku part number Y10430150, listed at Crowder Supply as TK-Y10430150. It governs how air reaches the working end of the chipping hammer. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
The published breakdown lists it on the TCH 2 3 4 Chipping Hammer. 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 parts breakdown index; complete tools are on the Toku tool catalog. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: Y10430150
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-Y10430150
- Listed on breakdowns for: TCH 2 3 4 Chipping Hammer

