Dual Lock

Even simple parts can cause major downtime when they loosen, leak, or interfere with movement. Diagnosing inconsistent operation can come down to one worn component—Dual Lock (part 03-3817-01) is a common replacement item. Symptoms can present as inconsistent operation, intermittent operation, abnormal noise, or a cycle that won’t complete normally—depending on where this part sits in the system. After replacement, run at least one full cycle and recheck for leaks, vibration noise, and anything that loosens during operation. A short post-repair check—visual inspection plus a full cycle—helps confirm the issue is resolved without introducing new leaks or noise. Once the root cause is corrected, performance should stabilize and output should return to normal. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. If the part interacts with water, do a leak check during the first run and again after a short operating period. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Recheck fasteners after a short run-in period; vibration can loosen hardware if it isn’t seated correctly. If the part interacts with water, do a leak check during the first run and again after a short operating period. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces.