Pneumatic Down Force Storage Procedures

• IMPORTANT: Do not allow row units to move after air has been removed from system. Air bags can be damaged if machine is moved after air bags have been deflated.

  To prevent air bags from being pinched, park machine with a minimum of 34.5 kPa (0.34 bar) (5 psi) of air pressure in the system.

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Properly Rolled Air Bag

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Improperly Rolled Air Bag

• CAUTION: Avoid serious injury from exploding parts due to overpressurization or operating the system without all components in place.

  Do not inflate system above 827 kPa (8.2 bar) (120 psi).

  Do not remove pressure relief valve.

  Do not pressurize system unless all row unit components are in place.

  IMPORTANT: Do not operate a pinched or unrolled air bag . Lower system pressure until air bags can be rolled by hand. Roll air bag back over lower piston. Incremental lowering of machine is required to get rubber started rolling over the lower piston.

  Pressurize system to a minimum of 83 kPa (0.8 bar) (12 psi) before raising or lowering machine.
• Minimum system pressure during operation is 83 kPa (0.8 bar) (12 psi). Failure to hold 83 kPa (0.8 bar) (12 psi) during operation can result in damage to air bags.