Technical Specifications

hex with the 1-1/8” box wrench supplied.
6. Push out the 1/4” diameter blade retaining
Dowel Pin and remove the broken Driving
Blade stub.
7. Install a new Driving Blade in the slot and
replace the Dowel Pin. Screw on the retaining
Jam Nut using the same tools. If the Jam
Nut becomes worn and loose after frequent
removals, it should be replaced.
8. Check the t, there should be some
sideways movement between the Driving
Blade and the Jam Nut assembly. This is
desirable and helps the blade to align itself
with the mating parts.
9. Reassemble the components. Be sure
to align the Driving Blade with the slot in the
Adapter Foot Assembly.
SEAL REPLACEMENT:
There are 7 seals that may require
replacement. We recommend that you have
your POWERNAIL Dealer replace the Seals.
SEAL KIT:
You may choose to buy a Seal Replacement
Kit and replace the seals yourself. It is good
practice to replace all seals at one time
regardless if only one seal needs replacement.
SEAL DESCRIPTION & NUMBER:
1. Rubber Seat (#19)
2. Plunger Seal Set (#21)
3. Piston U-Cup Lip Seal (#22)
4. Return Cylinder U-Cup Lip Seal (#23)
5. Piston Rod U-Cup Lip Seal (#24)
6. Plunger Wiper Seal (#25)
7. Return Cylinder O-Ring Gasket (#26)
To change Seals follow these procedures.
Be sure the air line is disconnected from the
Stapler rst before making any repairs.
Consult the illustration for the name and
location of the following component parts.
DRIVING BLADE ASSEMBLY REMOVAL:
1. Disconnect the air supply.
2. Remove Rubber Plunger Cap (#18).
3. Unscrew & remove Body Cap (#2).
4. Push Safety Yoke (#8) aside and unscrew the
three #10-32 cap screws holding the Plunger
(#12) to the Return Cylinder (#11).
5. Pull the Plunger up and out of the Stapler
Body (#1) cavity.
6. Remove the Return Cylinder O-Ring Gasket
(#26) located on the top of the Return Cylinder
under the Plunger.
7. Turn the Stapler over and remove the four
cap screws (#49), that fasten the Adapter Foot
and Staple Channel Assembly to the Stapler
Body and lift the Assembly off the Body.
8. Remove the Rubber Bumper (#20).
9. Pull the Driving Blade Assembly out of the
Stapler Body by pulling on the Driving Blade.
10. Hold the Piston Rod (#9) with an 11/16
socket over its hex end opposite the Piston.
Do not use pliers or a vise anywhere on the
metal parts, they can damage the sealing
surfaces.
11. Use the supplied box wrenches to remove
the 5/8-18 Jam Nut (#51). Remove the Dowel
Pin (#38) and Driving Blade (#14).
12. Unscrew the Piston from the Piston Rod
using the supplied box wrenches and separate
the Piston, Piston Rod and Return Cylinder
TO REPLACE THE SEALS:
Rubber Seat (#19):
1. Remove the Cylinder Sleeve (#13). The
Cylinder Sleeve should slide out of the Stapler
Body when you pull out the Driving Blade
Assembly.
2. Remove the metal Support Ring (#17) and
Rubber Seat from inside the Stapler body. Note
that the chamfer on the inside of the Rubber
Seat faces the BOTTOM of the Stapler, do not
5
OPERATION (continued)