Troubleshooting - MTD 769-01445 Operator's Manual

19” electric lawn mower
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SECTION 10: TROUBLE SHOOTING GUIDE
Trouble
Handle not in position.
Mower not starting.
Circuit breaker on the mower
tripping.
Mower cutting grass
unevenly.
Mower not mulching properly. Wet grass clippings stick to the
Hard to push.
Mower vibrating at higher
speed.
Possible Cause(s)
Carriage bolts not seated in the handle
insulators.
Cord disconnected from the motor/
blade control.
Motor/blade control switch defective.
Extension cord not connected to the
plug on the mower.
Extension cord not connected to a
source of power.
Circuit breaker on the mower or in the
house receptacle tripped.
Too much workload on the mower.
Fuse blown; outlet overloaded.
Lawn rough or uneven.
Cutting height not set properly.
underside of the deck.
High grass or cutting height too low.
Rear of mower housing and blade
dragging in heavy grass.
Bent motor shaft.
Blade is unbalanced.
Corrective Action
Adjust the height of the handle and make sure that
the carriage bolts are seated properly into the
handle insulators. Tighten the hand knobs.
Reconnect the cord keeping the cord restraint close
to the motor/blade control.
Replace motor/blade control switch.
Connect the extension cord to the plug on the
mower.
Connect the extension cord to a 110-120 V 60 cycle
A.C. receptacle.
Reset the circuit breaker following instructions in
the Operating Your Lawn Mower section of this
manual.
Raise the cutting height, reset the circuit breaker on
the mower, take a smaller width of cut, and walk
slowly.
Connect to an outlet that is fused for 15 amperes.
Reset the circuit breaker and start the mower again.
Move the wheels to a higher cutting height position.
All wheels must be placed in the same cutting
height for the mower to cut evenly.
Wait till the grass dries before mowing.
Raise cutting height.
Raise cutting height.
Stop the motor, disconnect the power source and
inspect for damage. Repair before restarting. If
vibration persists, take it to a service dealer.
Balance the blade by grinding each cutting edge
equally.
15

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