Manitowoc 12000-1 - Valve; Hoist System; Apparatus and Location of Components; Construction and Function

Reference Only
3
12000-1 / 12000E-1
[ TABLE OF CONTENTS ]
5.1.2 HYDRAULIC COMPONENTS LIST
..............................................................................5-11
5.1.3 LAYOUT OF HYDRAULIC COMPONENTS
...............................................................5-16
5.2 CONSTRUCTION AND FUNCTION
..................................................................................5-26
5.2.1 OIL FLOW FROM No.1 AND No.2 PUMPS
...............................................................5-26
5.2.2 OIL FLOW FROM No.3 AND No.4 PUMP
..................................................................5-28
5.2.3 OIL FLOW FROM No.7 PUMP
.......................................................................................5-30
5.2.4 OIL FLOW FROM No.8 PUMP
.......................................................................................5-34
5.2.5 OIL FLOW FROM No.5 AND No.6 PUMPS
(12000-1 : STD. / 12000E-1 : OPT.)
.............................................................................5-42
5.3 VALVE
......................................................................................................................................... 5-44
6. HOIST SYSTEM
6.1 APPARATUS AND LOCATION OF COMPONENTS
....................................................6-1
6.2 CONSTRUCTION AND FUNCTION
..................................................................................6-6
6.2.1 HYDRAULIC SCHEMATIC
..............................................................................................6-6
6.2.2 LIFTING A LOAD
................................................................................................................ 6-8
6.2.3 HOLDING A HOISTED LOAD
........................................................................................6-10
6.2.4 LOWERING A LOAD (POWER LOWERING)
............................................................ 6-12
6.2.5 FREE FALL OPERATION
................................................................................................6-14
6.2.6 G WINCH MODE LIFTING
.............................................................................................. 6-22
6.2.7 G WINCH MODE LOWERING
....................................................................................... 6-24
6.3 WINCH
.......................................................................................................................................6-26
6.3.1 WINCH INSTALLATION
...................................................................................................6-26
6.3.2 WINCH ASSEMBLY
..........................................................................................................6-27
6.3.3 REDUCTION UNIT ASSEMBLY
....................................................................................6-28
6.3.4 ADJUSTMENT OF DRUM LOCK
..................................................................................6-30
6.4 BRAKE PEDAL
........................................................................................................................6-31
6.4.1 ASSEMBLY DRAWING
....................................................................................................6-31
6.4.2 ADJUSTING THE BRAKE PEDAL
................................................................................6-34
6.4.3 BLEEDING AIR FROM BRAKE CIRCUIT
...................................................................6-35
7. BOOM HOIST SYSTEM
7.1 APPARATUS AND COMPONENTS LOCATION
...........................................................7-1
7.2 CONSTRUCTION AND FUNCTION
..................................................................................7-2
7.2.1 HYDRAULIC SCHEMATIC
..............................................................................................7-2
7.2.2 RAISING BOOM
................................................................................................................. 7-3
7.2.3 NEUTRAL (HOLDING BOOM)
....................................................................................... 7-4
7.2.4 LOWERING BOOM
...........................................................................................................7-5
7.3 BOOM HOIST WINCH
...........................................................................................................7-7
7.3.1 BOOM HOIST WINCH INSTALLATION
......................................................................7-7
7.3.2 REDUCTION UNIT ASSEMBLY
....................................................................................7-8
Published 07-15-16, Control # 254-01