Meyer Manufacturing Corporation - 32 - 9100RT
7.5 AIR DOUBLE DOOR (OPTIONAL)
Opening The Doors
Engage the tractor / truck hydraulics to stop the air flow to the two
door closing cylinders.
NOTE: Stopping the air flow to the two cylinders will allow the
doors to open under load pressure and apron chain
movement.
Closing The Doors
Move the tractor / truck and forage box forward, away from the unloaded forage.
Stop the tractor / truck, disengage the hydraulics, restoring air flow to the two door closing cylinders.
Allow the two doors to fully close and the door latches to engage the apron chain links, securing the doors in the closed
position.
Using the front plexiglass window for viewing, verify the rear gate has properly latched. If the door latches are not
automatically latching, move the washers on either side of the latch so that the latch is centered in the main apron chain
link. If the latch is bent or wore (See REAR DOOR on page 50.) of this manual for replacement.
7.6 HYDRAULIC DOUBLE DOOR (OPTIONAL)
Opening The Doors
The rear doors open automatically under load pressure and apron
chain movement.
NOTE: As the rear doors open, hydraulic oil is forced out of the
cylinders and into the hydraulic return line, allowing the
rear doors to open under load pressure and apron
chain movement.
Closing The Doors
When finished unloading, move the tractor and forage box forward, away from the unloaded forage.
Reverse the hydraulic control lever in the tractor so the return line becomes pressurized.
NOTE: A check valve in the system keeps the box from running backwards, and a relief valve protects the system
from being over pressurized.
Allow the two doors to fully close and the door latches to engage the apron chain links, securing the doors in the closed
position.
Using the front plexiglass window for viewing, verify the rear gate has properly latched. If the door latches are not
automatically latching, move the washers on either side of the latch so that the latch is centered in the main apron chain
link. If the latch is bent or wore (See REAR DOOR on page 50.) of this manual for replacement.
Center Door Latches Engaged
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