What precautions should be taken before undertaking machine repairs or maintenance?

Always ensure that the machine disconnect switch is turned to the OFF position or that the control enclosure is disconnected from the main power source. Also, place a sign indicating that the main disconnect switch is to remain off or lock the switch to prevent accidental activation.

How should the bed knives, shields, and clamps be removed for maintenance?

Loosen the fasteners holding these components, working from the knife edges inward to the center. Remember to note the relative position of each part before removal.

What steps are involved in rotor knife removal?

Carefully lock the rotor with the locking pin, loosen the hex head rotor knife bolts, and remove the rotor knives. Clean the rotor knife seats thoroughly and inspect the knives for replacement or resharpening.

9-4Rotor Knife Removal, Danger, Page 33 BP1600

DANGER!

Before undertaking any machine repairs or maintenance, always make certain that the machine disconnect switch is turned to the OFF position or that the control enclosure is disconnected from the main power source. Either place a sign indicating that the main disconnect switch is to remain off or on the switch and/or lock the switch to prevent accidental activation by someone unaware of work in progress.

2.Follow instructions in Section 4 on opening the cutting chamber.

3.See drawings in the appendix for the general cutting chamber drawings.

4.Loosen the fasteners holding the bed knives, shields, and clamps, working from the knife edges inward to the center. NOTE the relative position of each part before they are removed.

5.As the last screw is backed out, the up-stoke knife clamp and knife will require some support to prevent them from moving.

6.Clean the bed knife seats thoroughly with a scraper and/or emery paper to remove any foreign material and rust.

7.Inspect the components and replace or resharpen as required.