Echo CH8670H Instruction v.7 - Manual (Page 2)

Instruction Sheet
Remove the protective cap. 9.
Remove the 3/8" bolt holding the retaining spacer and 10.
remove the spacer.
Remove the four 1/2" bolts on each rotor bearing and 11.
loosen the two set screws on each bearing. (Note: You
may have to clean the shaft with emery cloth.)
Remove old disk and replace with Fine Chip Disk.
12.
NOTE: Approximate weight of disk is 260 lbs (118
kg).
Put the bolts back in the bearings and slide into place.
13.
Tighten bolts to 75 ft-lbs (102 Nm). Slide rear collar
back into place (noting that the offset bolt hole should
be toward the bearing) insert and fasten 3/8" bolt.
Taking a rubber mallet, tap the rotor shaft until the rear 14.
collar is tight against the rear bearing. Tighten the bolt
and lock the set screws on both bearings. Torque to
160 inch-lbs (20 Nm). Reinstall front collar and tighten
the cap screw. Make sure the speed sensor is aligned
and gapped properly. Reinstall the rear rotor protective
cap.
Slide the bushing on and tighten set screw, then slide
15.
the sheave on. Insert bolts into the sheave and tighten in
a clockwise direction. Torque to 108 inch-lbs (12 Nm).
Check the alignment of pulleys with a straight edge and
16.
adjust if needed. If adjustment is needed, adjust the
jackshaft bushing and sheave.
Replace the drive belt.
17.
Replace the idler and tighten. Reinstall tensioning 18.
springs.
Bolt the hitch support back in its original position.
19.
Close cover and replace bolts. 20.
Replace the hydraulic pump belt. Readjust hydraulic 21.
pump belt tension by sliding the hydraulic pump in the
mounting slots. Tighten bolts. The belt tension should
be set to have a deflection of 1/4" with 5.5 lbs of force
applied.
Replace belt guard and resume operation.
22.
Start tractor engine and engage PTO drive clutch (see 23.
tractor owner’s manual). Increase engine speed to
rated PTO RPM position and test unit. If readjustment
of pulleys and belt tension is needed, shut machine off
and adjust as necessary.
INSTaLL OF FINE CHIP DISK
FINE CHIP DISK
BOLT,1/2”
WASHER
NUT, 1/2”
SHAFT CAP
LOCK NUT, 1/2”
NUT, 3/8”
BOLT 3/8”
COLLAR
BRACKET,
DISC LOCK
BEARING
ECHO BEar CaT
www.bearcatproducts.com
237 NW 12th Street, West Fargo, ND 58078-0849
Phone: 701.282.5520 • Toll Free: 800.247.7335 • Fax: 701.282.9522
E-mail: [email protected] • [email protected]