MacDon 5020 Mower Conditioner - Manual (Page 63)

63
TROUBLE SHOOTING
SYMPTOM
PROBLEM SOLUTION REF.
Excessive breakage of
sickle sections or
guards. Cutting height too low in
stony conditions. Raise cutting height with
skid plates. 29
Header angle too steep
in stony conditions. Decrease header angle 30
Header flotation too
heavy in stony
conditions Adjust to lighter float
setting. 31
Guards, sickle and hold-
downs misaligned. Straighten guards, align
hold-downs. 49
Ground speed too high
in stony conditions. Reduce ground speed. 26
Sickle speed too slow. Maintain proper RPM on
PTO. Check for proper
match of pump & gear-
drive at PTO. ---
46
Sickle back breakage.
Bent or broken guard. Straighten or replace. 49
Worn sickle head pin. Replace. 48
Dull sickle. Replace. 48
Ragged or uneven
cutting of crop.
Header angle too flat for
guards to pick up down
crop. Increase header angle. 30
Reel position incorrect. Move reel forward and
down. 28
PTO speed too slow. Maintain proper RPM on
PTO. Check for proper
match of pump & gear-
drive at PTO. ---
46
Relief valve pressure
too low. Replace valve. 46
Sickle sections or
guards are worn or
broken. Replace worn or broken
parts. 47
Bent sickle causing
binding. Straighten a bent sickle.
Check alignment and
adjust if necessary. 48
Sickle hold-downs
improperly adjusted. Adjust hold-downs so
sickle works freely, but
still keep sections from
lifting off guards. 49