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PROBLEM
The audio indicator contin-
ues sounding.
The battery indicators are
still on when the mower is
turned off.
The LCD screen fails to be
illuminated with all icons on.
The mower cuts unevenly,
with significant height dif-
ference front to rear.
The actual grass cutting
height is not aligned with
the claimed height.
The mower does not mulch
properly.
CAUSE
◾
The mower is in Limp-home mode and the blades
are not turned off.
◾
The mower stops driving on a slope and the
operator opens the lap bars and is off the seat
without setting the parking-brake pedal at the
braking position.
◾
When the mower is turned off on level ground
without removing the battery pack(s) from
the mower, the battery indicators will remain
illuminated for 1h.
◾
When the mower is turned off on a slope without
setting the parking-brake at the braking position,
the battery indicators will keep on until the battery
charge is depleted. The audio indicator keeps
sounding at the same time.
◾
The pressing time on the start/stop button is less
than 3 seconds.
◾
The blades are dull.
◾
The blades are bent.
◾
The mower deck is not leveled, resulting in
different cutting blade height.
◾
The mower deck nuts are loosened on the
suspension linkage (see Fig. 33).
◾
The mower deck is damaged or seriously worn.
◾
Wet grass clippings are sticking to the underside
of the deck.
◾
The mower is set to cut too much grass at once.
56-VOLT LITHIUM-ION ELECTRIC ZERO TURN MOWER — ZT4200L/ZT4200L-FC
SOLUTION
◾
Push the PTO switch down to disengage the deck
blades. The audio indicator will stop sounding when
the blade stops.
◾
Set the parking-brake pedal in the braking position
before leaving the mower on the slope.
◾
No action is needed. The battery indicators will go off
after a period.
◾
Set the parking-brake in the braking position before
the operator leave the tool on the slope.
◾
The LCD screen will only display "Fuel Gauge" when
the start/stop button is pressed briefly.
◾
The LCD screen will turn on after the start/stop button
has been pressed for 3 seconds.
◾
Sharpen or replace the cutting blade as instructed in
this manual.
◾
Replace the bent cutting blade following the
instructions in section "REPLACING THE CUTTING
BLADES".
◾
Level the mower deck following the instructions in
section "LEVELING THE MOWER DECK".
◾
Follow the instructions in section "LEVELING THE
MOWER DECK" to make correct front-to-rear
adjustment for the mower deck and securely tighten
the four nuts on the suspension linkage (two for each
side).
◾
Follow the instructions in section "REMOVING THE
MOWER DECK" to have mower deck replaced.
◾
Wait until the grass dries before mowing.
◾
Raise the deck cutting height.
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