USTC 2500 jbt - Page 5

3120933 Rev.0 USTC iii
TABLE OF CONTENTS (Cont.)
Telescope Cylinder ..........................................................................................................................4-16
Removal .................................................................................................................................. 4-16
Installation ...............................................................................................................................4-17
Fly Section .......................................................................................................................................4-17
Removal .................................................................................................................................. 4-17
Fly Section Installation ............................................................................................................4-18
Two-Speed Hoist Operation ............................................................................................................4-18
SECTION 5 – SWING DRIVE
General ............................................................................................................................................ 5-1
Counterbalance Valve ..................................................................................................................... 5-1
Swing Motor.................................................................................................................................... 5-2
Swing Brake.................................................................................................................................... 5-2
Adjustment .............................................................................................................................. 5-2
Disassembly ............................................................................................................................ 5-2
Installation ............................................................................................................................... 5-3
Gear Reducer Hub .......................................................................................................................... 5-4
Hub Disassembly .................................................................................................................... 5-4
Cleaning And Inspection ......................................................................................................... 5-4
Carrier Disassembly ............................................................................................................... 5-5
Primary Carrier Assembly ...................................................................................................... 5-5
Secondary Carrier Assembly .................................................................................................. 5-6
Hub Assembly ........................................................................................................................ 5-6
Swing Bearing ................................................................................................................................. 5-7
Bolt Replacement, Torque Procedure ..................................................................................... 5-7
Swing Bearing Wear Tolerance .............................................................................................. 5-8
SECTION 6 – ELECTRICAL
General ............................................................................................................................................ 6-1
Anti-Two-Block System Operation ................................................................................................. 6-1
Electrical System ............................................................................................................................ 6-2
Overload System ............................................................................................................................. 6-2
Load Moment Indicator .................................................................................................................. 6-2
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