Great Plains NTA3007HD Operator Manual - Manual (Page 63)

Operating Instructions 59
04/04/2011 166-207M
Fan Operation
Fan Safety Information
Rotating Fan Blade Hazard:
Do not operate fan with guard screen removed. Fan acceler-
ates instantly and with high torque. Body parts and clothing
can be drawn into fan, resulting in death or serious injury.
Disconnect fan circuit at hitch when working on fan.
High Pressure Fluid Hazard, Fan Hydraulic Motor:
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. Use a piece of paper
or cardboard, NOT BODY PARTS, to check for leaks. Wear
protective gloves and safety glasses or goggles when working
with hydraulic systems. If an accident occurs, seek immediate
medical assistance from a physician familiar with this type of
injury.
Avoid unexpected fan operation. Set FAN/AUGER selector
valve (if present) to FAN before activating fan hydraulic cir-
cuit. If fan does not start when slowly moving circuit lever, set
lever to Float or Neutral and check selector valve.
Protect motor seals:
Fan circuit has three hoses. All must be correctly connected.
Make sure that “SUMP” line is connected to tractor case
drain.
Avoid sudden circuit changes. Motor seals may be damaged by
rapid starts and stops, or by circuit reversals. Engage fan cir-
cuit lever slowly, while observing fan rpm on seed monitor.
Note: Avoid fan direction reversal. A fan running in re-
verse cannot generate sufficient airflow for plant-
ing. If fan cannot reach target rpm, check for
reversed circuit connections or improper drain con-
nection.