Company Lawn Mower User Manual

Troubleshooting 21
MAN0224 (Rev. 7/29/2005)
TROUBLESHOOTING
MOWING CONDITIONS
PROBLEM POSSIBLE CAUSE SOLUTION
Grass cut lower in center of swath
than at edge
Height of cutter lower at rear or
front
Adjust cutter height and attitude
so that cutter rear and front are
within 1/2" of same height. See
instructions.
Loose blade Check clamping cup washers.
Replace if flat or not holding.
Grass cut lower in center of swath
than at edge
Height of mower lower at rear
than at front
Adjust mower height and attitude
so that mower rear and front are
within 1/2" of same height.
Loose blade Check clamping cup washers.
Replace if flat or not holding.
Streaking conditions in swath Conditions too wet for mowing;
blades unable to cut that part of
grass pressed down by path of
tractor tires, gauge rollers or cast-
ers
Allow grass to dry before mowing.
Slow ground speed of tractor but
keep engine running at full PTO
rpm. Cutting lower will help.
Under some conditions it is
impossible to pick up and cut
grass pressed down by tires.
Dull blades Sharpen or replace blades.
Loose blade Check clamping cup washers.
Replace if flat or not holding.
Material discharges from mower
unevenly; bunches of material
along swath
Material too high and too much
material
Reduce ground speed but main-
tain full rpm at tractor PTO, or
make two passes over material.
Raise mower for first pass. Lower
to desired height for second and
cut at 90° to first pass. Raise rear
of mower high enough to permit
material to discharge, but not so
high that conditions listed above
occur.
Grass wet Allow grass to dry before mowing.
Slow ground speed of tractor but
keep engine running at full PTO
RPM. Cutting lower will help.
Rear of cutter too low, trapping
material under cutter
Adjust cutter height and attitude.
Erratic mower operation; mower
slows down without tractor engine
slowing
Belt slippage See Belt Trouble Shooting.