19
ADJUSTING HOPPER HEIGHT
The height of the hopper can be adjusted by turning
the wheel adjusting cranks clockwise to raise the
hopper or counterclockwise to lower the hopper.
Note
Both wheels are individually adjustable.
Turning the wheel adjusting crank on both wheels
counterclockwise to the maximum position will allow
frame of the Forage Blower to rest on the ground.
DRIVE OVERLOAD PROTECTION
Most power take-off shaft damage is the result of
fluctuating power from tractor. A quick drop and rise
of power will create an overload on the power take-
off shaft and will not only damage the shaft, but
possibly damage the tractor's power take-off sys-
tem.
Since, in some cases, this surging of power can
neither be predicted nor prevented, the power take-
off shaft is equipped with a shear bolt assembly.
This assembly is designed to break its connecting
bolts any time this sudden surge occurs. Shear
protection is located at Forage Blower yoke and
reduces damage to the power take-off shaft only.
However, shear bolts will not protect the tractor's
power take-off or blower.
In the event an overload occurs which shears the
bolts, disengage power take-off, shut off tractor and
determine the cause of shearing. Only specified
shear bolts can be used for replacement. Never
replace it with a higher or lower strength bolt, as
doing so may result in damage to the machine.
With power take-off disengaged and tractor shut off,
replace shear bolts as follows:
1. Line up holes in both halves of shear hub and
drive out existing sheared bolts.
2. Install new shear bolts as shown and tighten to
12 foot pounds. Do not overtighten.
Important
540 RPM PTO
Shear Bolt replacement, use only 5/16" x 2 -1/4"
Grade 5 Hex Bolts (Part No. 902603) and 5/16"
Hex Lock Nuts. NO SUBSTITUTES.
Important
1000 RPM PTO
Shear Bolt replacement, use only 1/4" x 2"
Grade 8 Hex Bolts (Part No. 907336) and 1/4"
Lock Nuts. NO SUBSTITUTES.
Figure 6. Power Take-Off Shear Hub
