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ZMT Owner’s Manual
8. TROUBLE SHOOTING CHART
PROBLEM CAUSE FIX
17
Irregular cut
Machine noise
Gearbox noise
Vibration
Premature flail wear
Excessive backlash in the
arms & joints
Flail head lowers
involuntarily
Breakage of roller bearings
Belts overheating
• Worn, bent or broken fails
• Machine is not level with
the ground
• Clogged material due to
excessive working speed
• Loose bolts
• Cracks or initiation of flail
head
• Lack of oil
• Worn gears
• Worn bearings
• Broken or worn flails
• Unbalanced rotor
• Worn rotor bearings
• Flails touching the ground
• Worn pins
• Worn arm sliding blocks
• Worn glands in the rams
• Violent impact on the
ground when the arm is
lowered
• Dirty or little greased
bearings
• Flails touching the ground
• Working speed unsuitable
for amount of the material
to cut
• Belts slip on the pulleys
• Replace
• Level it by adjusting the
flail head hydraulic ram
• Reduce working speed
• Tighten bolts
• Have it repaired in
specialized workshop
• Fill to level
• Replace
• Replace
• Replace
• Have it replaced in
authorized workshop
• Have them replaced in
authorized workshop
• Adjust height of cut
• Replace
• Adjust
• Replace glands in
authorized shop
• Lower it gently
• Clean and grease
• Adjust cut height
• Reduce speed
• Adjust belt tension
18