Grizzly H6141 owner manual Replacing Pistons/O Rings, Disconnect Nailer from the AIR Supply

Replacing Pistons/O-

Rings

If you use your nailer day in and day out, replacement pistons are cheap insurance against wasted down time and lost profits, in the event that a piston or piston shaft becomes worn out.

Always disconnect air from nailer whenever servicing! During mainte- nance, a nailer connected to air may fire accidentally, causing serious personal injury!

To replace a piston:

1.DISCONNECT NAILER FROM THE AIR SUPPLY!

2.Unscrew the nose piece with a 19mm wrench.

3.Remove the nose piece, depth guide, compression spring and flat washer.

4.Remove the four cap screws and washers on the back of the nailer.

5.Remove the cap.

6.Push the ram pin towards the inside of the nailer. This will push the cylinder free of the housing.

7.Remove the piston from the cylinder by pulling it free by the ram pin.

8.Place a new O-ring on the new piston and apply a thin film of the nailer lubri- cating oil on the O-ring.

9.Insert the new piston in 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, double-check the alignment of the piston inside the cylinder.

10.After the piston is inserted correctly, place the cylinder back in the housing. If seated correctly, the cylinder will snap into place.

11.Push the cylinder collar down into the housing as far as it will go. The horizontal air slots on the side of the cylinder should be visible.

12. Replace the rear cap assembly and tighten the four cap screws.

13.Replace the flat washer, compression spring, depth guide and nose piece and tighten using a 19mm wrench.

14.For more assistance, or to install a complete O-ring set, refer to the appro- priate breakdown diagram in the back of this manual for component loca- tions.

H6141 Air Palm Nailer -9-