MacDon A40D - Page 246

262334 228 Revision A
Problem Solution
Section
Cutting height too high
Lower the cutting height with
skid shoes.
3.8.8 Setting Cutting Height,
page 89
Ground speed too fast
Slow down.
3.12 Selecting Ground Speed,
page 118
Header angle too flat for guards to pick
up down crop
Increase the header angle.
3.8.7 Adjusting Header Angle,
page 88
Reel position incorrect
Move the reel forward and down.
3.8.5 Setting Reel Position, page
82
Tine aggressiveness too low
Rotate the cam clockwise (viewed from
RH end) for more aggressive tine action.
3.8.6 Setting Tine
Aggressiveness, page 87
Symptom: Pulling material by the roots or tall material leaning into the machine
Ground speed too slow Increase the ground speed.
3.12 Selecting Ground Speed,
page 118
Reel position incorrect
Move the reel forward and down.
3.8.5 Setting Reel Position, page
82
Symptom: Ragged or uneven cutting of the crop
Bent or misaligned guards causing poor
shearing action
Align the guards for proper shearing
action.
Aligning Guard, page 148
Bent knife causing binding
Straighten the bent knife. Check the
alignment, and adjust if necessary.
4.8.2 Removing Knife, page 144
Ground speed too fast
Slow down. Ground speed should not
exceed 13 km/h (8 mph).
3.12 Selecting Ground Speed,
page 118
Header angle too flat for guards to pick
up down crop
Increase the header angle.
3.8.7 Adjusting Header Angle,
page 88
Header float too light, causing bouncing Adjust to heavier float setting.
3.8.11 Checking and Adjusting
Float – M Series Self-Propelled
Windrowers, page 99
Reel position incorrect
Move the reel forward and down.
3.8.5 Setting Reel Position, page
82
Relief valve pressure too low Replace the valve.
See Dealer
Knife drive belt too loose Increase the belt tension.
4.9.1 Header Knife Drive, page
167
Knife sections or guards are worn
or broken
Replace worn or broken parts.
4.8.1 Replacing Knife Section,
page 143
4.8.7 Guards, page 147
Symptom: Conditioner plugging; knife plugging; uneven formation and bunching of the windrow
Ground speed too fast
Slow down.
3.12 Selecting Ground Speed,
page 118
Roll gap too large for proper feeding
Decrease the roll gap.
3.8.13 Adjusting Conditioner Roll
Gap, page 101
Roll gap too small in thick stemmed cane-
type crops
Increase the roll gap.
—
Rolls improperly timed Adjust the roll timing.
4.14.11 Checking and Adjusting
Roll Timing, page 216
Extremely thick or wet undergrowth
Raise the cutting height to clear
undergrowth.
3.8.8 Setting Cutting Height,
page 89
Consider the use of stub guards. 4.8.7 Guards, page 147
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