Seed Hawk AIRCART 2013 - Manual (Page 73)

SEED HAWK
®
AIRCART OPERATOR’S MANUAL 68
8.0 HYDRAULIC DRIVE
All aircarts equipped with the Raven Viper Pro™ monitoring system have hydraulically driven
meters. These motors have a maximum speed of 113 RPM and a minimum speed of 2 RPM.
Speeds in excess of the maximum may result in premature wear or failure of the motors.
Reducing the rotational speeds of the motor below 2 RPM may result in erratic metering which
may affect the seeding rate.
Each hydraulic motor requires a flow rate of 1.0 gallons per minute. The maximum torque
output is 26 ft‐lbs. The maximum inlet pressure of the hydraulic motors is 1500 psi. The inlet
pressure is regulated by a pressure reducing valve as mentioned in section 8.1.
Roller changing procedure:
NOTE: If the tanks contain product ensure to shut the gates before changing the meter roller.
1. Remove the two flange nuts holding
the hydraulic motor mount to the
meter body, the lynch pin on the
roller shaft and the hydraulic motor
spacer, Figure 30.
2. Slide the hydraulic motor and
hydraulic motor mount off of the
roller, Figure 31.
Figure 30
Figure 31