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Operation 13
MAN0253 (Rev. 3/10/2007)
TROUBLESHOOTING
MOWING CONDITIONS
PROBLEM POSSIBLE CAUSE SOLUTION
Grass cut higher in center
of swath than at edge
Height of mower higher at front than
at the rear
Adjust mower height and attitude so that
mower is 3/8-inch lower in the front than the
rear. See Adjust Mower Deck (Figure 27 &
Figure 29), page 26 and page 28.
Loose blade or blade spindle Check hardware.
Grass cut lower in center
of swath than at edge
Height of mower lower at front than
at the rear
Adjust mower height and attitude so that
mower is 3/8-inch lower in the front than the
rear. See Adjust Mower Deck, page 26.
Loose blade or blade spindle Check hardware.
Streaking conditions in
swath
Conditions too wet for mowing Allow grass to dry before mowing.
Blades unable to cut that part of
grass pressed down by path of
deck casters
Slow ground speed of power unit but keep
engine running at full rpm. Cutting lower will
help.
Dull blades Sharpen or replace blades.
Loose blade or blade spindle Check hardware.
Material discharges from
mower unevenly; bunches
of material along swath
Material too high and too much
material
Reduce ground speed but maintain full engine
rpm, or make two passes over material. Raise
mower for the first pass and lower for the
second and cut 90 degrees to first pass.
Conditions too wet for mowing Allow grass to dry before mowing.
Uneven cut or poor grass
discharge
Worn, bent or loose blade(s) Replace blade(s). Tighten blades.
Mower deck not level Level mower deck. See Adjust Mower Side-
to-Side, page 27.
Buildup of grass, leaves, and trash
under mower
Clean underside of mower.
Bent spindle shaft Replace spindle shaft.
Engine speed too slow Run throttle at full RPM.
Travel speed too fast Slow ground speed.
Conditions too wet for mowing Allow grass to dry before mowing.
Low/uneven tire pressure Check tires for proper air pressure.
Blades improperly installed Reinstall blades with sharp edge down.
Deck out of adjustment Adjust deck. See Adjust Mower Deck,
page 26.
Mower blades will not rotate Obstruction in clutch mechanism Remove obstruction.
Worn/damaged mower PTO belts Replace belts.
Frozen idler pulley Replace pulley.
Frozen blade spindle Replace spindle.
Wiring harness not hooked up Connect wiring harness (PowerTilt), page 24.
Dandelion seed heads are
not being cut
Material is being bent over too far to
be cut with the blades
Remove baffle extensions from front baffle.
Reduce ground speed.
(Continued)