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SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
4. Push shaft through the rotor and remove it along with
old spacers and knives.
5. Insert new shaft into same hole location on rotor and
assemble the new knives and spacers as they were
previously.
6. Secure with #10-24 screw and nut in spacer and torque
to 33 in-lbs.
7. Repeat on second shaft.
8. Replace front cover and six 5/16 nuts.
Figure. 5.6, Knives and spacers configuration
The SC2170 has the option of additional knives being
added to the rotor. Order Additional Knives Kit, 77618-00
and follow the complete installation instructions.
5.7 CLEARING A PLUGGED ROTOR
If too much material is fed into the chipper/shredder or
if the material is too large, the machine may become
plugged. To clear a plugged rotor, proceed as follows:
1. Turn off the machine and let all moving parts come to
a complete stop.
2. Remove left nut and bolt holding the discharge screen
in place (see Fig. 5.7).
3. Reach up into the discharge chute and pivot that side
of the discharge screen down.
4. Clean any trash or debris from the screen area, being
careful not to touch the sharp blades.
5. Pivot the screen back up to its original position.
6. Secure with the 5/16" nut and 5-1/2" bolt
12
AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
2 INCH CHIPPER/SHREDDER
WARNING
5.8 REMOVING THE ROTOR
1. Remove the front housing panel by removing the six
5/16 spiral lock nuts.
2. The rotor is connected directly to the engine crankshaft.
If the rotor needs servicing, remove the 5/16 x 2-1/2"
bolt, 5/16" spring washer and the two 1/4 x 1/2" set
screws and key securing it to the crankshaft.
3. Pull the rotor assembly off the crankshaft.
4. Reverse the procedure to install the rotor. Torque 5/16-
24 x 2-1/2" bolt to 25 ft. lbs.
5.9 CHANGING THE DISCHARGE SCREEN
There is one optional discharge screen available with a
smaller mesh that will produce smaller-sized shredded
product. Order part #76893-35 for this screen. To change
the discharge screen, proceed as follows:
1. Remove the two 5/16" nuts and 5" bolts securing the
discharge screen and pull the discharge screen out
from the bottom.
2. Clean any trash or debris from the screen area.
3. Insert the replacement screen into the bottom of the
chipper body.
4. Secure with two 5/16 x 5" bolts and 5/16" nuts.
Figure. 5.7, Removing the discharge screen
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