MacDon 974 FlexDraper - Manual (Page 67)

Form # 147083 Issue 01/07 65
TROUBLESHOOTING
SYMPTOM
PROBLEM SOLUTION REF.
CUTTING ACTION & SICKLE COMPONENTS (continued)
Excessive header vibration. Sickle hold-downs not
adjusted properly.
Adjust hold-downs so sickle
works freely, but keeps
sections from lifting off
guards. 48
Sickle not operating at
recommended speed.
Check engine speed of
combine. *
Excessive sickle wear. Replace sickle. 45
Loose or worn sickle
head pin or drive arm.
Tighten or replace parts. 45
Excessive breakage of
sickle sections or guards. Sickle hold-downs not
adjusted properly.
Adjust hold-downs so sickle
works freely, but still keep
sections from lifting off
guards. 48
Cutterbar operating too
low in stony conditions.
Raise cutterbar, using skid
shoes. 19
Header float is set too
heavy.
Adjust float springs for
lighter float. 22
Bent or broken guard. Straighten or replace. 47
Header angle too steep. Flatten header angle. 25
Sickle back breakage. Bent or broken guard. Straighten or replace. 47
Worn sickle head pin. Replace. 45
Dull sickle. Replace. 44
REEL DELIVERY
Reel not releasing crop.
In heavy crop, fingers
starting to flip over before
releasing crop.
Move to a more aggressive
finger pitch position. 31
Reel speed too fast. Reduce speed of reel to
allow crop to fall onto
drapers properly. Reel
speed should be slightly
faster than ground speed. 29
Reel too low. Raise reel. 29
Reel too far back. Move reel forward. 30
Wrapping on reel end. Finger pitch too
aggressive.
Decrease finger pitch
aggressiveness. 31
Reel too low. Raise reel. 29
Reel speed too fast. Reduce reel speed. 29
* See your Combine Operator's Manual.