8 - TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTION
Excessive gear load compared to the
prescribed one.
Replace the bevel gear.
Break towards the outer end of the
ring gear tooth.
Incorrect gear adjustment (excessive
backlash).
Loose pinion nut.
Carefully follow the recommended
adjustment operations for ring gear
and pinion backlash and for tooth
mark detection.
Load crash.
Replace the bevel gear.
Break towards the inner end of the
ring gear tooth.
Incorrect gear adjustment (insufficient
backlash).
Loose pinion nut.
Carefully follow the recommended
adjustment operations for ring gear
and pinion backlash and for tooth
mark detection.
Insufficient lubrication.
Replace the bevel gear.
Contaminated lubricant.
Incorrect lubricant or poor additives.
Replace the pinion bearings, paying
attention to correctly position the
ring gear, the pinion and the bearing
preloading.
Worn-out or scored Pinion teeth and
ring gear teeth.
Worn-out pinion bearings that cause
an incorrect pinion axial backlash and
wrong contact between pinion and
ring gear.
Use proper lubricant, fill up to
the correct level and change at
recommended intervals.
Prolonged operation at high
temperature.
Replace the bevel gear.
Overheated ring gear teeth or pinion
teeth. Check if gear teeth have faded.
Unsuitable lubricant.
Low oil level.
Contaminated lubricant.
Use proper lubricant, fill up to
the correct level and change at
recommended intervals.
Extremely intense use.
Replace the bevel gear.
Pitted drive pinion teeth.
Insufficient lubrication.
Use proper lubricant, fill up to
the correct level and change at
recommended intervals.
Bent axle beam body.
Overloaded vehicle.
Vehicle’s accident.
Load crash.
Replace the axle beam body.
Insufficient lubrication.
Replace bearings.
Worn-out or pitted bearings.
Contaminated lubricant.
Extremely intense use.
Normal wear.
Loose pinion nut.
Use proper lubricant, fill up to
the correct level and change at
recommended intervals.
Prolonged operation at excessive oil
temperature.
Replace the gasket and matching
surface if damaged.
Gaskets leak oil.
Oil gasket wrongly installed.
Gasket edge cut or scored.
Contaminated lubricant.
Use proper lubricant, fill up to
the correct level and change at
recommended intervals.
Intense use.
Replace the flange.
Loose pinion nut.
Check that the pinion spline is not
excessively worn out.
Excessive wear of input flange spline.
Axial backlash of pinion.
Replace the bevel gear, if necessary.
8-15
Summary of Contents for 580ST
Page 8: ......
Page 24: ...1 GENERAL INFORMATION 1 16 ...
Page 49: ...2 SAFETY INFORMATION Extend telescopic dipper If fitted MOLI12LBB0092AA 24 2 25 ...
Page 101: ...3 CONTROLS AND INSTRUMENTS Setup menu LEIL12TLB00006I 1 3 39 ...
Page 144: ...3 CONTROLS AND INSTRUMENTS 3 82 ...
Page 164: ...4 OPERATING INSTRUCTIONS 4 20 ...
Page 166: ...5 TRANSPORT OPERATIONS RAIL14TLB1181GA 1 5 2 ...
Page 222: ...6 WORKING OPERATIONS 6 44 ...
Page 247: ...7 MAINTENANCE Fuel tank capacity 145 L 38 30 US gal 2WS 124 L 32 76 US gal 4WS 7 25 ...
Page 347: ...7 MAINTENANCE Fuses and relays Powershift cab 2WS MOLI12LBB0491CA 7 7 125 ...
Page 349: ...7 MAINTENANCE Fuses and relays Powershift cab 4WS MOLI12LBB0492CA 8 7 127 ...
Page 390: ...8 TROUBLESHOOTING 8 28 ...
Page 418: ...9 SPECIFICATIONS 4WS LEEN11T0039FA 2 9 28 ...
Page 420: ...9 SPECIFICATIONS 2WS 590ST LEEN11T0041FA 5 4WS 695ST LEEN11T0042FA 6 9 30 ...
Page 433: ......