HYDRAULIC SYSTEM (CONT’D) HYDRAULIC SYSTEM INFORMATION . . . . . . . . . . . . . . . . . 20-10-1 Glossary Of Hydraulic/Hydrostatic Symbols For Excavators 20-101 Troubleshooting The Cylinder Circuit. . . . . . . . . . . . . . . . . 20-10-6 Troubleshooting The Hydraulic Circuit . . . . . . . . . . . . . . . . 20-10-5 Troubleshooting The Swing (Slew) Circuit . . . . . . . . . . . . . 20-10-7 Troubleshooting The Travel Circuit . . . . . . . . . . . . . . . . . . 20-10-8 LEFT CONTROL LEVER (JOYSTICK) (S/N 232512782 & BELOW, 232711433 & BELOW AND 232612157 & BELOW) . . . . . . . 20-111-1 Disassembly And Assembly. . . . . . . . . . . . . . . . . . . . . . 20-111-10 Handle Removal And Installation . . . . . . . . . . . . . . . . . . . 20-111-2 Joystick Assembly, Removal And Installation . . . . . . . . . 20-111-5 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-111-9 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-111-1 LEFT CONTROL LEVER (JOYSTICK) (S/N 232512783 & ABOVE, 232711434 & ABOVE AND 232612518 & ABOVE) . . . . . . . 20-112-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-13 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-9 Handle Removal And Installation . . . . . . . . . . . . . . . . . . . 20-112-2 Joystick Assembly, Removal And Installation . . . . . . . . . 20-112-5 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-8 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-1 Continued On Next Page
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