MacDon 922 - Manual (Page 32)

Form # 46620 Issue 01/06 30
OPERATION
HAY CONDITIONER ROLL TENSION SPRINGS
The conditioner roll intermesh is maintained by two
tension springs to provide roll pressure for correct
conditioning of the crop. These springs also allow
the rolls to open to allow passage of small solid
objects without damage to the rolls. The roll
tension has been factory set for normal operating
conditions and generally does not require
adjustment.
In some conditions, less aggressive conditioning
may be desirable, and roll tension can be reduced
as required. For smooth conditioner operation,
back off tension only as much as required for
desired conditioning action.
To decrease spring tension:
1. Loosen jam nut (A).
2. Turn bolt (H) out of spring to decrease tension
(easier to force rolls open.)
3. Hold spring plug (K) with a wrench and tighten
nut (A) securely against plug to secure the
position.
4. Repeat at other side.
FEED PAN/ROCK DROP TINE POSITION:
(Relative to Hay Conditioner)
Rock drop tines must be correctly positioned to
ensure proper feeding into hay conditioner. Check
also that conditioner feed pan has not become
pushed down or buckled. A damaged feed pan
can result in uneven feeding to the hay
conditioner.
To adjust position of feed pan and rock drop tines:
1. Ensure that all tine points are in line. Bend
tines to align if required.
2. Select desired setting for tine positions (see
step 4).
3. To adjust tine position, loosen bolts (J) at both
sides of delivery opening.
4. Rotate channel assembly with wrench either
upward or downward to align pointer (E) with
the center of slots in hay conditioner frame for
your specific crop conditions, as follows:
SLOT: (B) – recommended for light crop.
(C) – factory set, for medium volume crops.
(D) – recommended for heavy crop.
5. Tighten bolts (J).
ROLL TENSION ADJUSTMENT
ROCK DROP TINE POSITIONING
J
ALIGN POINTER WITH CENTER OF SLOT
B
C
D
E