32
INSTALLATION
1.
Position the overhung load adapter housing, in approximately the same location it was in before
the belt was removed, and tighten all four of the .75” cap screws on the overhung load adapter
to ensure proper alignment of the shaft andhousing.
NOTE:
The overhung load adapter housing must be properly seated flat against the mainframe of the
mulcher for proper alignment of the sprockets. If there are any gaps along this surface, remove the
housing and clean any debris from the surface. Reinstall and tighten.
2.
The taper lock bushing assembly needs to be reassembled for proper installation. DO NOT use
“Never Seize” on bushing or bolts.
3.
Clean the shaft, bore of bushing, outside of bushing and the sprocket hub bore of all oil, paint
and dirt. File away any burrs.
NOTE:
The use of lubricants can cause sprocket breakage. Use no lubricants in this installation.
4.
Insert the bushing into the sprocket hub. Match the hole pattern, not the threaded holes
(each complete hole will be threaded on one side only.)
5.
LIGHTLY oil the set screws and thread them into the half-threaded holes indicated on the
diagram.
NOTE:
Do not lubricate the bushing taper, hub taper, bushing bore or the shaft. Doing so could result in
sprocket breakage.
NOTE:
If both sprockets were removed, install the larger driven sprocket first making sure that it will
clear the grease lines and drive belt cover.
6.
With the key in the shaft keyway, position the assembly onto the shaft allowing for small (.03”
- .06”) axial movement of the sprocket, towards the outside of the unit, which will occur during
the tightening process. Make certain the shaft is completely through the bushing.
NOTE:
If the locking assembly will not slide onto the shaft, you may have the locking assembly too
tight or you may need to drive a wedge into the slot of the taper lock bushing which will therefore
increase the bushing bore.
7.
Alternately tighten the set screws until the sprocket and taper lock bushing are seated
together.
A
pply
only enough
torque to the set screws
so
that the sprocket and
taper lock
bushing will slide on the shaft for alignment purposes.
NOTE:
Do not use worn hex key wrenches. Doing so may result in a loose assembly or may
damage screws.
8.
If both sprockets were removed, install the second one using the same
procedure.
9.
Align the sprockets using a straight edge. The outside edge of both sprockets must be
aligned.
Torque the set screws to approximately one-half of the recommended torque to lock the
bushings onto the shaft. See torque table on the following page. Recheck sprocket alignment.
NOTICE:
Failure to align the sprockets correctly will decrease the life of the belt.
10.
Install the drive belt and tension just enough to prevent the sprockets from rotating.
MAINTENANCE & SERVICE
PM-000102-A OCTOBER 2017
31
Содержание Magnum II Series
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