Rifling Or Tramlining; 5.10 Mismatched Cutting Units - Jacobsen 67971 – LF 3400, Kubota V1505-E3B, 5 Gang, 2WD Safety & Operation Manual

5.9

RIFLING OR TRAMLINING ___________________________________________________

NOTE: Arrow indicates direction of travel.
Probable Cause
Reel and/or bedknife unevenly worn.
Missing, loose, or overtorqued bedknife screws.
Mowing (ground) speed is too fast.

5.10 MISMATCHED CUTTING UNITS ______________________________________________

NOTE: Arrow indicates direction of travel.
Probable Cause
HOC inconsistent from one cutting unit to another.
Difference in mower ride height side to side.
QUALITY OF CUT
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.
Inspect bedknife and reel. Sharpen or replace reel and
bedknife as necessary.
Install, replace or tighten bedknife screws to proper
torque setting.
Reduce mowing (ground) speed.
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.
Check/adjust HOC on cutting units.
Check/adjust tire inflation pressure.
Remedy
Remedy
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