MacDon A40-D Pull-Type - Manual (Page 174)

SECTION 8 TROUBLESHOOTING
169000
172
Revision F
SYMPTOM PROBLEM SOLUTION SECTION
Plugging At Delivery
Opening In Heavy Grass
Seed.
Opening too narrow.
Move pan extensions to
widest position.
6.17.17
Grass Seed Windrow Too
Wide or Too Narrow. Pan extensions not
adjusted properly. Adjust pan extensions.
8.2 MECHANICAL
SYMPTOM PROBLEM SOLUTION SECTION
Auger and/or Conditioner
Rolls Damaged By Stones. Feed pan doesn’t allow stones to
fall through.
Lower rock-drop tines. 6.17.11
Excessive Breakage Of
Knife Sections Or Guards.
Ground speed too high in
stony conditions.
Reduce ground speed. ---
Cutting height too low in
stony conditions. Raise cutting height with
skid shoes.
6.17.8
Header angle too steep in
stony conditions.
Decrease header angle. 6.17.9
Header flotation too heavy in
stony conditions.
Adjust to lighter float setting. 6.17.10
Knife speed too slow.
Maintain proper RPM on PTO.
Check for proper match of
pump and gear-drive at PTO.
5.1
Guards, knife and hold-downs
misaligned. Straighten guards, align
hold-downs. 7.8.7 &
7.8.8
Excessive Heating Of
Hydraulic Oil.
Relief pressure too low. Replace relief valve.
See
Dealer
Header Stalling In
Extremely Tall, Heavy
Crop (6+ Tons Per Acre).
Insufficient crop clearance at rear
of feed pan.
Lower rock drop tines (rear of
header pan).
6.17.11
Remove rubber fingers from
auger at delivery opening.
7.11.4
Increase roll gap. 6.17.12.1
Feeding aids for shorter, lighter
crop impede flow of heavy or
thick stemmed crops (cane,
sudan grass etc.).
Remove front set of
stripper bars.
7.11.5
Header Turns While
Unloaded But Slows Or
Stops When Starting To
Cut.
Low reservoir oil level. Add oil to reservoir. 7.7.2.3
Defective motor. Repair motor.
See
Dealer
Defective O-ring inside
relief valve.
Replace relief valve.
Defective pump. Repair pump.
Defective relief valve. Repair relief valve.
PTO slipping on tractor. Repair tractor PTO system.