Power Fist 8052391 Manuel Du Propriétaire page 7

Insert a new one by setting it into the recessed hole in the stem, and tapping it gently until firmly seated.
reverse these instructions to reassemble.
5. Assemble plunger flush with end of piston stem.
To replace piloted valve seals
1. Remove exhaust deflectors and four hex socket head cap screws holding cap to cylinder. Remove cap
exposing the poppet piston and piloted valve.
2. Remove gasket, piloted valve seat, piloted valve, spring and O-rings.
3. Clean all O-ring grooves. Lubricate new O-rings and assemble.
4. After new O-rings have been assembled to piloted valve, insert spring into valve body. Lay tool on its side
and slide valve into position. Turn tool upright and replace gasket.
5. After new O-ring has been assembled to valve seat, slide it through the gasket and over the piloted valve.
6. Insert new O-ring in stepped hole in cap directly over piloted valve. Assemble cap using four socket head
cap screws and replace exhaust deflector.
To replace wear plate or blade guide:
1. Separate the magazine from the nose by removing four socket head cap screws.
2. Remove and replace wear plate or blade guide.
To replace detent spring or pusher spring
1. Remove magazine.
2. Set the magazine down on a flat surface. Cup palm over the hooked end of the cover to prevent the detent
pin and the detent pin spring from slipping out and being lost when cover is removed. Turn the magazine
upside down and reach in with a small screwdriver, or needle nose pliers, and lift the pusher spring off the
pusher. Slide cover out the back end of the magazine.
3. To remove the springs from the magazine, use a 3/32" pin punch and drive the spring anchor pin out of the
magazine body. Replace and reverse the instructions to reassemble.