VACUUM
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Standard Turbofan
The standard turbofan has a plastic impeller blade and is
used on smaller planters. The standard turbofan has 3
PTO options 450, 540 or 1000 rpm. The standard turbofan
can be equipped with a hydraulic drive option.
High Output Turbofan
The High Output Turbofan has the same housing as the
Standard, but with an aluminum impeller blade, and is
used on medium sized planters. The high output turbofan
has 2 PTO options 500 or 1000 rpm. The high output
turbofan can be equipped with a hydraulic drive option.
The high output turbofan requires a larger hydraulic motor.
Extra High Output Turbofan
The Extra High Output Turbofan has a larger aluminum
impeller blade and a larger housing and is used on large
planters. The Extra High Output Turbofan has 2 PTO
options 540 or 1000 rpm. The Extra High Output Turbofan
can be equipped with a hydraulic drive option. The Extra
High Output Turbofan requires a larger hydraulic motor.
The vacuum hoses are attached to the inlet of the turbofan
and deliver suction to the metering box of each row unit.
An arrow decal on the turbofan housing indicates direction
of impeller blade rotation. The top of the impeller blade will
rotate towards the fan outlet. A protection shield against
rain is located at the top of the turbofan, and when in an
open position, indicates that the turbofan is operating.
Before Planting Checklist
•
Make sure support strap hardware is tight
•
Check all vacuum hoses for holes, tears, breaks or kinks
•
Be sure vacuum gauge is functioning
•
Inspect condition and tension of drive belt
•
Grease U-Joints on PTO shafts
•
Be sure top and bottom bearings spin freely
•
Check condition of hydraulic hoses if equipped with
hydraulic drive
Tensioning Fan Belt with Belt Tension Bolt
See diagrams at right for PTO and Hydraulic drive
•
Loosen 4 flange nuts (C) around lower bearing housing
bracket.
•
Loosen jam nut (B).
•
For a Standard Turbofan torque bolt (A) to 6 ft-lbs.
•
For High Output and Extra High Output Turbofans
torque bolt (A) to 13 ft-lbs.
•
Tighten jam nut (B) and 4 flange nuts (C) around lower
bearing housing bracket.
APY18001
—UN—05MAR19
PTO Drive
APY18002
—UN—05MAR19
Hydraulic Drive
40-1
061919
Summary of Contents for 7x7 NG Plus 4 Series
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