Echo Bear Cat 70580 v.1 - Manual (Page 21)

3 INCH CHIPPER/SHREDDERS
19
SERVICE & MAINTENANCE
BEFORE INsPECTINg OR sERvICINg ANy PART OF THIs mACHINE, sHuT OFF POWER sOuRCE,
dIsCONNECT sPARk PLug WIRE FROm sPARk PLug ANd mAkE suRE ALL mOvINg PARTs HAvE COmE TO A COmPLETE sTOP.
Warning
5.5 changing The diScharge Screen
There are several optional discharge screens available in different
sizes. different size discharge screens produce different size
chips. To change the discharge screen proceed as follows:
Lift discharge door to gain access to the discharge
screen.
Remove the 5/16" x 7/8" bolt and nut securing the discharge
screen to the frame (Figure 5.4).
Pull discharge screen out from the bottom and rotate the
top down.
Clean any trash or debris out from the screen area.
Insert the top of the replacement screen into the slot in the
chipper body and push the bottom of the screen inward so
bolt holes align.
Install the bolt from the underside upward through the frame
and screen, attach nut and tighten to specified torque.
1.
2.
3.
4.
5.
6.
Figure 5.4 - Replacing the Discharge Screen
5.6 belT guide adjuSTmenTS
The belt guide aids in disengaging the chipper/shredder. If
problems arise with engaging and disengaging the unit, follow
the instructions below. These instructions also adjust the lower
belt guard.
Remove upper shield to expose the belt and pulleys.
Loosen set screws and using a straightedge align the en-
gine pulley with the idler pulley and the rotor pulley with the
engine pulley. Tighten all set screws.
Engage the clutch with the belt in place and check idler
engagement. The idler pulley should impact the belt in the
center of the pulley. All pulleys must be in perfect alignment.
Torque pulley set screws to 160 In-lbs.
If idler pulley will not remain in alignment with engine and
rotor pulleys, it may be necessary to replace the idler bracket
bushings. Contact the ECHO Bear Cat service department
for more information.
There should be 1/8" clearance between the belt and the
lower belt guard when the clutch is engaged. Adjust by
loosening the mounting bolts and repositioning the guide.
Retighten mounting bolts.
Reinstall upper shield.
From underneath, check the alignment of lower belt guard
with a post card (Figure 5.5). With the clutch engaged, there
should be enough room between the belt and the side of
the guard for the card to slide along the belt. With the clutch
disengaged, the card should not be able to slide. Adjust if
necessary.
1.
2.
3.
4.
5.
6.
7.
Figure 5.5 - Belt Guide Adjustments