Husqvarna M-ZT 52 Operation Manual - Page 51

Problem, Cause, Fuse has blown

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TROUBLESHOOTING GUIDE Problem Machine vibrates Cause • 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 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 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 51

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51
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
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 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