Husqvarna MZ6128/966613103 Lawn Mower User Manual


 
49
TROUBLESHOOTING GUIDE
Problem Cause
Machine vibrates Blades are loose
Blades are incorrectly balanced
Engine is loose
Engine overheats
Clogged air intake or cooling fins
Engine overloaded
Poor ventilation around engine
Defective engine speed regulator
Too little or no oil in the engine
Fouled spark plug
Battery not charging
Poor contact with battery terminal cable connectors
Charging lead is disconnected
Fault in engine charging system
Machine moves slowly,
unevenly, or not at all
Parking brake on
Bypass valve on pump open
Drive belt for the transmission gears slack or has come off
Air in hydraulic system
Mower deck not engaging
Drive belt for the mower deck has come loose
Contact for the electromagnetic coupling has loosened
Blade switch is faulty or has come loose from the cable contact
Fuse has blown
Hydraulic drive leaks oil
Damaged seals, housing, or gaskets
Air trapped in hydraulic system
Uneven mowing results Unequal tire pressure on the left and right sides
Bent blades
Suspension for the mower deck is uneven
Blades are dull
Driving speed too high
Grass is too long
Grass collected under the mower deck