Great Plains NTA2007 Operator Manual - Manual (Page 64)

60 NTA607 or NTA2007 Table of Contents Index Great Plains Manufacturing, Inc.
166-372M Table of Contents Index 2012-01-05
Fan Operation
Fan Safety Information
Rotating Fan Blade Hazard:
Do not operate the fan with guard screen removed. The fan
accelerates 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.
Machine Damage Risk: Protect Motor Seals:
Fan circuit has three hoses. All must be correctly connected.
Make sure that “SUMP” line is connected to a tractor port
capable of accepting high volume low pressure return oil.
Connect Case Drain line to a low volume case drain return.
Avoid sudden circuit changes. Motor seals may be damaged by
rapid starts and stops, or by circuit reversals. Engage fan
circuit lever slowly, while observing fan rpm on seed monitor.
Note: Avoid fan direction reversal. A fan running in
reverse cannot generate sufficient airflow for
planting. If fan cannot reach target rpm, check for
reversed circuit connections or improper drain
connection.
818 189C
Air leaks will cause erratic metering rates.
Bins should be periodically checked for air leakage.
(See operator’s manual.)
NOTICE