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TRACTOR/BLOWER PREPARATION
TRACTOR SPECIFICATIONS
This Forage Blower is designed for a normal
operating power take-off speed of 540 RPM.
When forage blower is equipped with optional
1000 RPM gear box, the power take-off speed is
1000 RPM. The tractor should be checked to
insure that it is operating at recommended speed
when the Forage Blower is under load.
However, the tractor used to power the Forage
Blower must meet certain requirements.
It is recommended that a tractor with a minimum
of 80 HP at 540 RPM or 140 HP at 1000 RPM be
used with the Forage Blower. Higher HP rated
tractors may be more desirable if tough materials,
such as wilted hay or heavy materials, are to be
blown. More HP may also be needed on higher
silos.
The tractor should be in good condition and
transmit an even flow of power. Tractors with an
improperly tuned engine and slow reacting gover-
nors that permit excessive drop in speed will
overload the power take-off and continuously
shear bolts in the shear bolt protection assembly.
Life of the power take-off is greatly reduced if this
is a frequent occurrence.
ASAE P.T.O. STANDARD
Figure 3. Drawbar — Power Take-Off Standard
TRACTOR DRAWBAR/POWER TAKE-OFF
REQUIREMENTS
Tractor must be equipped with drawbar and power
take-off that conform to ASAE standards. See
Figure 3 (at top right).
For safe power take-off operation, horizontal dis-
tance from center of drawbar pin to end of tractor
power take-off shaft should be according to Dimen-
sion "G" in Figure 3.
To reduce wear on power take-off shaft, universal
joints and tractor, power take-off drive shaft should
be aligned with blower input shaft. If tractor is
equipped with swinging drawbar, adjust so that
tractor power take-off and blower drive shaft are in
line. See Figure 4.
