Mismatch - Straight
Description:
Straight Mismatch may happen when cutting units run
a side by side cut at different heights. Each unit
appears to be cutting well but this can show up when
two different mowers are used on the same turf due to
different effective HOC settings.
Mismatch
Straight
Causes of Straight Mismatch:
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Different HOC settings
Different effective HOC
Cutting edges dull
Cutting off too much grass at one time
Bedknife settings different for each of the affected units
Different bedknife height (worn reel diameter)
Improperly set counterbalance or down pressure systems
Worn roller bearings
Inconsistent turf density (excessive thatch/grain)
Using different parts for each affected unit
Rollers not parallel
Possible Corrective Actions:
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Verify all HOC settings within .005 (0.12mm) of each other
Verify the weight, roller options and other causes changing the effective HOC
Sharpen reel and bedknife
Increase mowing frequency
Set bedknife attitude/BCD the same on all units
Verify reel diameter (must be equal on all units)
Set the counterbalance adjustment to obtain consistent effective HOC over all cutting units (may
be different for each cutting unit)
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Set the down pressure system to obtain consistent effective HOC over all cutting units (can be
different for each cutting unit)
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Check for worn or damaged roller bearings
When patterns intermittently appear, check for differing turf conditions influencing effective HOC
Dethatch, verti-cut, aerate
Verify the parts being used are identical (type and brand)
Parallel rollers (vertical and horizontal)
TORO® Service Training
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