Replacing Pistons Rings, Repair Kit

Replacing Pistons/

O-Rings

Under heavy use, a piston, piston shaft, or O-ring may wear out. Replacement is quick and easy. Contact Grizzly Customer Service at (800) 523-4777 to obtain the fol- lowing Piston Repair Kits or the complete O-Ring Repair Kits.

Repair Kit	Part Number
Brad Nailer:
Piston Repair Kit	PH8236164
O-Ring Repair Kit	PH8236165
Stapler:
Piston Repair Kit	PH8236151
O-Ring Repair Kit	PH8236152

Always disconnect air from nailer/ stapler whenever servicing! During maintenance, a nailer/stapler con- nected to air may fire accidentally, causing serious personal injury!

To replace a piston for your brad nailer or stapler:

1.DISCONNECT NAILER/STAPLER FROM THE AIR SUPPLY!

2.Remove all nails/staples from the mag- azine cartridge, and clean the exterior of the tool.

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 tool.

6.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.

7.Taking care not to scratch or dent the nailer parts, use a wooden dowel or similarly shaped tool to push the piston shaft back inside the tool until you can grip the piston head and remove it from the cylinder. Clean and inspect the parts for cracks, wear, or burrs.

8.Apply a thin film of tool oil on the new O-ring and place it on the new piston.

9.Insert the new piston in the cylinder. Make sure that the grooves on the pis- ton shaft line up with those on the guide at the bottom of the cylinder. The new piston should easily slide into the cyl- inder. DO NOT force the piston into the cylinder! If the piston is not easily inserted, double-check the alignment of the piston shaft with the grooves on the guide.

10.After the piston is inserted correctly, close the magazine. Replace the rear cap assembly and secure it with the four cap screws remove in Step 3.

Note: For more assistance, or to install a complete O-ring set, refer to the appropriate breakdown diagram in the back of this manual for component locations.

3.Remove the four cap screws on the back of the tool, near the exhaust port.

-12-	Model H8236 2-Piece Brad Nailer/Stapler Kit