MacDon 922 - Manual (Page 63)

Form # 46620 Issue 01/06 61
TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION REF.
Excessive breakage of sickle
sections or guards.
Cutterbar operating too low in
stony conditions.
Raise cutterbar, using skid shoes or
gauge rollers.
26
Header float is set too heavy. Adjust float spring for lighter float. 27*
Bent or broken guard. Straighten or replace. 46
Header angle too steep. Flatten header angle. 27*
Sickle back breakage. Worn sickle head pin and/or
drive arm.
Replace. 45
Worn sickle sections. Replace sections, or install new
knife.
45
Worn guards. Replace guards. 46
Sickle hold-downs not adjusted
properly.
Adjust hold-downs so sickle works
freely, but still keep sections from
lifting off guards.
46
Bent or broken guard. Straighten or replace. 46
Ragged and uneven cutting of crop. Sickle sections or guards are
worn or broken.
Check and replace all worn and
broken cutting parts.
44
Sickle speed on low speed.
(922 & 933)
Install pulley for high-speed sickle.
(922 & 933)
48
Header angle too flat. Increase header angle to tilt header
so tines are closer to ground.
*
Reel fingers not lifting crop
properly ahead of sickle.
Increase finger pitch
aggressiveness.
25
Reel speed too slow. Increase reel speed. 24
Sickle hold-downs not adjusted
properly.
Adjust hold-downs so sickle works
freely, but still keep sections from
lifting off guards.
46
Cutting edge of guards not close
enough or parallel to sickle
sections.
Align guards. 46
Underside of guard plugged with
soil.
Clean underside of guard, flatten
header angle.
27
Loose sickle drive belt. Adjust sickle drive belt tension. 49
Reel tines too high off cutterbar. Adjust reel position for closer tine
clearance to cutterbar.
51
Ground speed too fast. Decrease ground speed. 23
Long stubble. Cutterbar too high. Raise end skid shoes or gauge
rollers.
26
Ground speed too fast. Decrease ground speed 23
Reel speed too slow. Increase reel speed. 24
Reel tines not lifting crop
properly.
Increase header angle to tilt header
so tines are closer to ground.
*
Guard angle too flat Increase guard angle *
Header flotation too light. Decrease header float *
* - Also see your Windrower Tractor Operator’s Manual.