Ordering by number: this is 1280582256 the number that superseded 01642, the American Pneumatic Tool rear valve chest. 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 155 Rock Drill.
The parts breakdown index indexes every breakdown we publish, and the American Pneumatic catalog has the tools these parts go into. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 1280582256
- Previous part number: 01642
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT1642
- Listed on breakdowns for: 155 Rock Drill
