1 PIECE JAW Plate REPLACEMENT

Jaw plates can either be turned end for end or replaced depending on their wear. The jaw dies can be turned once after their installation before they need to be replaced.

Dismantling

1 PIECE JAW DIE REPLACEMENT

Fixed Jaw Plates

• Clean the jaw die lifting holes. Remove stones and sand from the jaws. Also, remove material packed between the jaw and side plates.
• Hold the jaw die up with a hoist and lifting hooks.
• Remove the hex nuts and the spring packages.
• Remove T –head bolts (30), tightening wedge (6), and upper wedge (21). Be careful not to drop the jaw in the gap and cause damage.
• Lift out the jaw dies.

Movable Jaw Plates

• Clean the jaw die lifting holes. Remove stones and sand from the jaws. Also, remove material packed between the jaw and side plates.
• Hold the jaw die up with a hoist and lifting hooks.
• Remove the hex nuts and the spring packages.
• Remove T –head bolts (31), tightening wedge (7), and upper wedge (21). Be careful not to drop the jaw in the gap and cause damage.
• Lift out the jaw die.

Assembly

Before re-assembly make sure that the support surfaces are clean. The jaws should be in continuous contact with the support surfaces.
Replace or reverse worn parts. If the wedge contact surface on the ends of the jaw dies is distorted from crushing, the original angle must be established by grinding before assembling the jaw die wedges to assure good contact and seating area.