Valve Chest is the Tamco/Toku service part carried under part number 430432C40. It directs the flow that reverses the piston in the rock drill. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
You will find it on the diagram for the TH 800 Rock Drill. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the full diagram library. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 430432C40
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-430432C40
- Listed on breakdowns for: TH 800 Rock Drill
