Quality Of Cut 12; Quality Of Cut Problem Solving; Washboarding - Jacobsen LF550-H-T4F Safety, Operation And Maintenance Manual

12Quality of Cut

12.1 QUALITY OF CUT PROBLEM SOLVING________________________________________

Make a "test cut" to check the performance of the mower before you start the repairs.
This area must have turf conditions that are known and do not change across the area. This type of area allows an
accurate inspection of the perfomance of the mower to be made.
Another "test cut" must be done after the repairs or adjustments to confirm the mower's performance.
Before you do a "test cut" to show the appearance and performance of the mower, the following items must be
confirmed. These items make sure that the "test cut" is accurate.
1. Cut (Ground) Speed
2. Blade Sharpness
3. Height-of-Cut (HOC)
4. Roller and Roller Bearing Condition
5. Blade Speed

12.2 WASHBOARDING _________________________________________________________

NOTE: Arrow indicates direction of travel.
Probable Cause
The cut (ground) speed is higher than normal.
Grass attaches on roller.
The roller is out of round.
Cut in the same direction.
The Turf Groomer was used during the cleanup pass.
Not enough engine speed, engine speed is not set to
specification.
Washboarding is a repeated pattern of different cutting
heights, that causes an appearance that is like a wave. In
most cases, the wave tip-to-tip distance is approximately
6—8 in. (15—20 cm). A change in the color (from light-to-
dark) is also seen.
This cause of this condition can be a movement from side
-to-side in the cutting units (s). This condition is found on
mowers with cutting units held under the mower, but other
cause can give the same result.
Another cause of Washboarding is differences in the type
of turf.
TN0159
Reduce the cut (ground) speed.
Clean the roller and scraper.
Replace the roller.
Change the direction of cut more frequently.
Only use the Turf Groomer in a straight line.
Check/adjust the engine speed.

QUALITY OF CUT 12

Remedy
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