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Model H8233 3-Piece Framing/Brad Nailer & Stapler Kit
-14-
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
Framing Nailer:
Piston Repair Kit ............... PH8233092
O-Ring Repair Kit .............. PH8233093
Brad Nailer:
Piston Repair Kit ............... PH8233159
O-Ring Repair Kit .............. PH8233160
Stapler:
Piston Repair Kit ............... PH8236151
O-Ring Repair Kit .............. PH8236152
3. Remove the four cap screws on the
back of the tool, 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 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/stapler 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 removed 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.
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 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.