en-82
11.2.9 RIFLING OR TRAMLINING
NOTE: Arrow indicates direction of travel.
Rifling or tramlining is a pattern of varying cutting
heights, resulting in a wave-like cut appearance,
usually due to heavy contact points across a reel and/
or bedknife.
11.2.10 MISMATCHED CUTTING UNITS
NOTE: Arrow indicates direction of travel.
Mismatched cutting units is a pattern of varying
cutting heights, resulting in a stepped cut
appearance, usually due to mismatched HOC
(height-of-cut) adjustment from one cutting unit to
another.
Probable Cause Remedy
Reel and/or bedknife unevenly worn.
Inspect bedknife and reel. Sharpen or replace reel
and bedknife as necessary.
Missing, loose, or over torqued
bedknife screws.
Install, replace or tighten bedknife screws to proper
torque setting.
Mowing (ground) speed is too fast. Reduce mowing (ground) speed.
Probable Cause Remedy
HO C inconsistent from one cutting unit
to another.
Check/adjust HOC on cutting units.
Difference in mower ride height side to
side.
Check/adjust tire inflation pressure.