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99903514:TELESCOPIC CRANE: 3-1 SECTION 3: REPAIR

SECTION 3: REPAIR

3-1: GENERAL ..........................................................................................................................2

3-2: REPAIR PRECAUTIONS ...................................................................................................2

3-3: SYSTEMATIC REPAIR PROCEDURE .............................................................................2

3-4: CLEANLINESS ..................................................................................................................3

3-5: HYDRAULIC SYSTEM .......................................................................................................3

3-6: FASTENERS & TORQUE VALUES ..................................................................................3

3-7: CRANE BASE REMOVAL AND REPLACEMENT ............................................................4

3-8: WORM DRIVE WINCH .......................................................................................................4

3-8-1: REMOVING THE WORM DRIVE WINCH .......................................................................4

3-8-2: PLANETARY WINCH (MODELS 6025 AND 6625) .........................................................4

3-9: CRANE ROTATION SYSTEM ............................................................................................4

3-9-1: REMOVING THE CRANE ROTATION SYSTEM ............................................................5

3-9-2: SETTING BACKLASH - IMT BASE & WORM DRIVE (1007, 1015, 2020).....................5

3-9-3: WORM END PLAY & BACKLASH - INTEGRAL BASE & WORM DRIVE (3020, 3820,

5020, 5525, 6025, 6625) .......................................................................................................5

3-9-4: TURNTABLE GEAR REMOVAL & REPLACEMENT (7020 & 7025).............................6

3-9-5: PINION, DRIVE GEAR BUSHING REMOVAL & REPLACEMENT (7020, 7025)...........8

3-9-6: ROTATION MOTOR AND C’BAL VALVE REMOVAL AND REPLACEMENT (7020,

7025).....................................................................................................................................9

3-10: WEAR PADS ....................................................................................................................9

3-11: PINS................................................................................................................................10

3-12: BEARINGS & BUSHINGS .............................................................................................10

3-12-1: BEARING TYPES .......................................................................................................10

3-12-2: BEARING INSPECTION & REPLACEMENT.............................................................10

3-13: VALVEBANK.................................................................................................................. 11

3-13-1: VALVEBANK COMPONENTS.................................................................................... 11

3-13-2: VALVEBANK TROUBLESHOOTING .........................................................................13

3-13-3: SINGLE VALVE REPLACEMENT ..............................................................................13

3-13-4: VALVEBANK REMOVAL AND REPLACEMENT.......................................................13

3-14: LOWER CYLINDER REMOVAL & REPLACEMENT ....................................................14

3-15: EXTERNAL EXTENSION CYLINDER-REMOVAL AND REPLACEMENT...................14

3-16: INTERNAL CYLINDER REMOVAL AND REPLACEMENT ..........................................15

3-17: LOWER BOOM REMOVAL AND REPLACEMENT.......................................................15

3-18: WIRE ROPE REMOVAL/REPLACEMENT ....................................................................15

20030115

IMT 1015 User Manual

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