Electronic Box IRON-GARD™ II

When the metal detector is active, output light (C) will be on. It indicates that metal detector output is 12 V and the solenoid is pulled in. If output light (C) is on and the solenoid is not pulled in, have the relay box and the solenoid switch checked by your John Deere dealer. When the metal detector is tripped, the light will go out. It will come one again when the metal detector is reset.

Whenever the sensor signal reaches 0.5 V, sensitivity light (D) will flash. As soon as the sensor signal reaches 0.7 V, metal detector will trip. As light (D) flashes before metal detector is tripped, it can be used for checking false tripping of metal detector.

Test key (B) induces voltage in the electronics module, causing the module to trip. When pressing this key, reset light (E) should go out. The solenoid is no longer powered, i.e. locking device is engaged.

A-Test connection
B-Test key
C-Output light
D-Sensitivity light
E-Reset light (reversing)
F-Clutch light (feeding system)

IRON-GARD is a trademark of Deere & Company.

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When the machine is reversed, the metal detector is reset. The reset light (E) and the output light (C) are on. As soon as reversing of feed rolls is stopped, the reset light goes out but the output light (C) should stay on. If metal detector will not reset when the machine is reversed, check reset light (E):

If light (E) does not come on, have the wiring to the upper left electronic box plug checked by your John Deere dealer.

If light (E) comes on, but the metal detector does not reset, have the metal detector electronic box checked by your John Deere dealer.

When the electric clutch is engaged, clutch light (F) should come on. If the machine experiences false tripping when switching the feed rolls to forward or reverse, check light (F):

If light (F) does not come on when electric clutch is engaged, have the wiring to the upper left electronic box plug checked by your John Deere dealer.

If light (F) comes on when electric clutch is engaged, but the metal detector does not trip correctly, have screening coil at left bearing of lower front feed roll and electronic box checked by your John Deere dealer.

If light (F) goes out when electric clutch is disengaged, but metal detector does not trip correctly, have electronic box checked.

A-Test connection
B-Test key
C-Output light
D-Sensitivity light
E-Reset light (reversing)
F-Clutch light (feeding system)

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