Almaco SPC 20 - Corn Head; Standard Platform Head

SPC 20 OPERATOR’S MANUAL
OPERATION C-5
CORN HEAD:
A Corn Head functions by a pair of tapered snapping rollers which pinch the stalk and pull it down
and through the head past an adjustable stripper plate, this plate strips the ears from the stalk. The
ears are carried up the head by a set of steel flight gathering chains to the throat. In the throat the
ears are pushed to the center of the throat where they are picked up by a second set of drag chains
which deliver the ears to the threshing chamber. It is important to note that the drag chains should
match the ground speed. This means the gathering chains in the head should run slightly faster
than the stalks entering the head. If the chains run too slowly the stalks can be pushed forward,
increasing the chances of plugging. If the chains run too fast, stalks are jerked into the snapping
rolls, possibly knocking off ears or shearing off stalks. See Corn Head manual for detailed operation
information.
STANDARD PLATFORM HEAD:
A Standard Platform Head functions by cutting the material off with a horizontal moving sickle. A
reel then pushes the plant up onto a chevron style conveyor. This conveyor carries the material up
the head where the plant material is forced into the threshing chamber with the use of an upper
pinch belt. Adjust the reel speed so that bars of the reel match or are slightly faster than the ground
speed so that the plants are gently placed on to the conveyor. If the reel is set too fast seed can be
knocked off the plant and lost. If the reel is set too slow the plant can be pushed forward increasing
the chances of plugging and sample loss.
REMOVING THE HEAD:
Removing an ALMACO heads is a simple process and may be done for storage and transport
purposes.
1. Use header lift lever to lower header on to gauge wheels and guide jack stands into mount.
Adjust stand, by turning lower portion, until pin can be placed through both stand and mount
2. Chock wheels
3. Close hydraulic quick coupler (levers towards rear).
4. Pull hydraulic lines from head out of quick couplers. (Clean connections before reconnecting)
5. Remove drive chain from combine (see right side power flow).
6. Remove pins from header side of hydraulic cylinders.
7. Unbolt quick attach bracket from header socket (2 5/16”x1-1/2” hex socket bolts. See FIGURE C-
3 above).
8. Back combine away from head. Replace bracket, and tie header lift cylinder off the ground.
SADDLE
BRACKET
REMOVE
THESE
BOLTS
HEADER
PIVOT
FIGURE C-3 Quick Attach Header Pivot Block