Exchange and Install Jaw Crusher Cheek Plates

Cheek plates are one of the most important jaw crusher wear parts. After a long time working, those cheek plates need exchange. How to exchange jaw crusher cheek plates?  How to install jaw crusher cheek plates?

How to exchange jaw crusher cheek plates?

When start to exchange jaw crusher cheek plates, the following wear parts are required:

• Cheek plates
• Screw
• Self-locking nut
• Flexible washer
• Steel washer

The crushing chamber contains two mirror image cheek plates. The following instructions are for the exchange of one side. Repeat the procedure for the other side. The cheek plates can be exchanged without removing the clamping bars and jaw plates. However, We recommend exchanging the cheek plates when these are removed. Never weld external lifting eyes to the cheek plates. Always use the lifting eye on the cheek plate and the lifting tool provided with the jaw crusher.

Removing jaw crusher cheek plates

Exchange jaw crusher cheek plates

• 1103-0 Cheek plate
• 1106-0 Screw
• 1106-4 Flexible washer
• 1106-5 Steel washer
• 1106-1 Self-locking nut
• 1000-0 Frame
• 1000-1 Lifting eye

The cheek plate (1103-0) is attached with 5 screws (1106-0) to the frame (1000-0). Each screw has a flexible washer (1106-4), a steel washer (1106-5), and a self-locking nut (1106-1).

1. Remove the upper two nuts and the bottom left nut (1106-1), steel washers (1106-5) and flexible washers (1106-4).
2. Knock out the three screws (1106-0).
3. Loosen the remaining lower right screw (1106-0) but don’t remove the nut until the lifting tackle is applied.
4. Position the hook of a mobile crane vertically above the crushing chamber.
5. Hang the lifting tool (provided with the crusher) on the hook of the mobile crane and attach the hook of the lifting tool to the lifting eye (1) on the cheek plate.
6. Take up the slack in the lifting tackle.
7. Remove the last nut (1106-1) with steel washer (1106-5) and flexible washer (1106-4)and knock out the screw (1106-0).
8. Carefully lift the cheek plate out of the crushing chamber.
9. Place the cheek plate horizontally on the ground.

How to install jaw crusher cheek plates?

Install jaw crusher cheek plates

1. Clean the frame (1000-0) and the corners of the crushing chamber on the inside.
2. Position the hook of a mobile crane vertically above the new cheek plate.
3. Hang the lifting tool (provided with the crusher) on the hook of the mobile crane and attach the hook of the lifting tool to the lifting eye (1) on the new cheek plate.
4. Take up the slack in the lifting tackle.
5. Carefully lift the cheek plate into the crushing chamber.
6. Position the cheek plate in its place. Use a screw (1106-0) to find the correct position.
7. Install all of the screws (1106-0). Place a flexible washer (1106-4), steel washer (1106-5), and self-locking nut (1106-1) on each screw. Do not tighten.
8. Slacken off the lifting tackle.
9. Remove the hook of the lifting tool from the lifting eye (1).
10. Tighten all nuts (1106-1). The flexible washers (1106-4) must be 3 mm compressed when the installation is complete.