DR Power 11.5 FPT - Manual (Page 19)

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Maintaining the Shredder Hammers
When the hard steel Hammers of the Rotor Assembly become dull or round on
the cutting edge, they may be rotated or reversed.
NOTE: The Hammers have four cutting edges that may be used before
replacement is necessary. To reverse the Hammers, proceed as follows:
Tools and Part Required

Two 1/2" Wrenches
 Hammer and Punch
1. Remove the Baffle Rod and Cotter Pin to remove the Baffle Plate (Figure
25).
2. Remove the Screen Rods and Cotter Pins to remove the Screen (Figure 26).
3. Remove the Belt Guard with a 1/2" Wrench.
4. Loosen the Access Cover Locknut with a 1/2" Wrench and rotate the round
Access Cover Plate to expose the Access Hole.
5. Rotate the Rotor Assembly to gain access to the Roll Pin at the end of the
Rod (Figure 27).
6. Drive out the Roll Pin with a punch and Hammer.
7. Align the Rod with the Access Hole.
8. Carefully remove the Rod through the Access Hole and at the same time
remove the Hammers and spacers from the Rod leaving them in the same
order as you removed them.
9. Now reverse each Hammer (end to end) by using the lower hole in the
Hammer.
10. Slide the Rod back through the Access Hole as you reinstall the Hammers
and Spacers in the same order as removed.
NOTE: Be sure you reinstall the Hammers and Spacers in exactly the same order
that they were removed. Refer to the Rotor Assembly Schematic in Chapter 6 for
the correct order.
11. Replace the old Roll Pin with a new one.
12. Repeat steps 5 through 11 for the remaining three Hammer Rods.
Tip: To remember which Hammer Rod you have reworked, it may be helpful to
mark the end of the Rods with a marker or tape.
13. Reinstall the Access Cover Plate, Belt Guard, Screen, and the Baffle Plate.
Screen
Figure 26
Screen
Rods
and
Cotter
Pins
Access
Cover
Belt
Guard
Baffle
Plate
Figure 25
Baffle Rod
and
Cotter Pin
Hammers
Figure 27
Spacers
Roll Pin
Access Hole