H&S HDNR 7+4 Operator's Manual / Parts Book page 20

OPERATION OF FRONT/REAR UNLOAD FORAGE BOX
1. Park the Forage Box on level ground whenever possible during unloading.
2. Make sure that the drive pin has been changed from front to rear unload as stated in the
PREPARING FOR OPERATION - Rear Unload Section.
3. CAUTION: Rear door locks must be in unlocked position when set up as rear model as stated in the
PREPARING FOR OPERATION - Rear Unload Section.
5. Connect the hydraulic hoses from the Forage Box to the tractor.
6. With operator in the tractor seat and all others well clear of Forage Box, engage tractor hydraulic
Note: Rear unload operates in only one direction. If the tractor hydraulic system stalls, reverse the lever
on the tractor or switch the hydraulic hoses at the port on the tractor.
7. During unloading, move the Forage Box forward to allow material to fall way from rear of box.
8. When the Forage Box is empty, disengage tractor hydraulics, disconnect hoses from tractor if
detaching the box from the tractor, and securely wrap hoses on convenient holder on the front unloading
of unit. If the Forage Box is not going to be detached from the tractor, hoses can stay connected for the
next load.
9. Check rear door to make sure it is securely latched.
UNLOCKED
LOCKED
POSITION
POSITION
OPERATION
REAR DOOR LOCKS
Located on the inside of the left and right hand rear drive shaft brackets
are the rear door locks. These locks should be locked up against rear door
frame when forage box is being unloaded toward the front. (LOCK BEFORE
LOADING). Door locks must be unlocked (down position) when forage box
is being unloaded toward the rear. (UNLOCK BEFORE LOADING).
FAILURE TO UNLOCK REAR DOOR LOCKS WHEN BOX IS BEING
UNLOADED TO THE REAR WILL RESULT IN SEVERE DAMAGE TO THE
FORAGE BOX.
REAR DOOR LATCHES
Located at the bottom left and right hand side of the rear door are the door
latches. These latches lock against knurled gears on rear drive shaft to
hold door closed when operating forage box as a rear unload. When tractor
hydraulics are activated and rear drive shaft turns, knurled gears flip latches
open to allow rear door to swing free. Upon completion of unloading check
rear door to insure that door latches are securely in place for next load.
DOOR LATCH
KNURLED GEAR
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