Model W1779 18 Gauge Stapler Kit
Replacing Pistons and
O-Rings
6.Open the nose cover as if to clear a jammed staple.
Under heavy use, a piston or piston shaft may wear out. Replacement is quick and easy. Contact your authorized Shop Fox dealer to obtain the Piston Repair Kit (part number X1779001).
Always disconnect stapler from air whenever servicing! During maintenance, a stapler connected to air may fire accidentally, causing serious personal injury!
To replace a piston and O-ring, do these steps:
1.DISCONNECT STAPLER FROM THE AIR SUPPLY!
2.Remove all staples from the magazine cartridge, and clean the exterior of the stapler.
3.Remove the four cap screws on the back of the stapler, near the exhaust port.
4.Remove the cap.
5.The top of the piston should now be visible inside the cylinder, which is housed in the head of the stapler.
7.Watch the discharge area and push the top of the piston with your finger. You will see the piston shaft slide down the discharge area.
8.Taking care not to scratch or dent the stapler parts, use a wooden dowel or similarly shaped tool to push the piston shaft back inside the stapler until you can grip the piston head and remove it from the cylinder. Clean and inspect the parts for cracks, wear, or burrs.
9.Place a new
10.Insert the new piston in the cylinder. Make sure that the grooves on the piston shaft line up with those on the guide at the bottom of the cylinder. The new piston should easily slide into the cylinder. DO NOT force the piston into the cylinder! If the piston is not easily inserted,
11.After the piston is inserted correctly, close the magazine. Replace the rear cap assembly and tighten the four cap screws.
12.For more assistance, or to install a complete