Replacing Pistons/O-Rings
If you use your stapler day in and day out, Grizzly offers repair pistons as cheap insurance against wasted down time and lost profits in the event that a piston or pis- ton shaft becomes worn out.
Always disconnect air from stapler whenever servicing! During mainte- nance, a stapler connected to air may fire accidentally, causing seri- ous personal injury!
To replace a piston:
1.Disconnect the stapler from the air supply!
2.Remove all staples from the maga- zine cartridge.
3.Remove the 4 cap screws from the stapler exhaust cap on the Model H5626, or unscrew the exhaust cap on the Model H5627.
4.Remove the exhaust cap as shown in Figure 6.
5.The top of the piston should now be visible inside the cylinder, which is housed in the head of the stapler.
6.Open the magazine.
Figure 6. Removing stapler exhaust cap.
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.With a long flathead screwdriver or similarly shaped tool, push the piston shaft back inside the stapler until you can grip the piston head and remove it from the cylinder. (Be careful not to scratch the discharge area when pushing the piston shaft with the screwdriver.)
9.Place a new O-ring on the new piston and apply a thin film of the stapler lubricating oil on the O-ring.
10.Insert the new piston in the cylinder. Make sure that the grooves on the piston shaft line up with those on the guide. 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 shaft with the grooves on the guide.
11.After the piston is inserted correctly, close the magazine. Replace the rear cap assembly and tighten the 4 cap screws.
12.For more assistance, or to install a complete O-ring set, refer to the appropriate breakdown diagram in the back of this manual.
H5626/H5627 Upholstery Stapler |