JLG 120Hx Parts Manual (3120820) – PDF DOWNLOAD
TABLE OF CONTENTS:
JLG 120Hx Parts Manual (3120820) – PDF DOWNLOAD
SECTION 1 FRAME........................................................................................ 7 FIGURE 1-1. FRAME, VALVES AND SHIELDS INSTALLATION................................................. 8 FIGURE 1-2. VALVE ASSEMBLY - HYDRO AIR............................................................. 12 FIGURE 1-3. STEERING AND AXLES INSTALLATION........................................................ 14 FIGURE 1-4. TIRE AND WHEEL DRIVE INSTALLATIONS..................................................... 18 FIGURE 1-5. DRIVE HUB ASSEMBLY..................................................................... 20 FIGURE 1-6. DRIVE BRAKE ASSEMBLY................................................................... 24 FIGURE 1-7. DRIVE MOTOR ASSEMBLY - REXROTH......................................................... 28 FIGURE 1-8. JACK CYLINDER INSTALLATION............................................................. 30 SECTION 2 TURNTABLE.................................................................................... 33 FIGURE 2-1. TURNTABLE, BOOM AND SWITCHES INSTALLATION.............................................. 34 FIGURE 2-2. VALVES INSTALLATION - TURNTABLE MOUNTED................................................ 38 FIGURE 2-3. VALVES ASSEMBLY - HYDRO AIR (PRIOR TO S/N 38697)....................................... 40 FIGURE 2-4. VALVE ASSEMBLY - HYDRO AIR (S/N 38697 TO PRESENT)...................................... 42 FIGURE 2-5. ROTARY COULPING AND COLLECTOR RING ASSEMBLY AND INSTALLATION........................... 46 FIGURE 2-6. SWING DRIVE AND BEARING INSTALLATION................................................... 50 FIGURE 2-7. SWING MOTOR ASSEMBLY................................................................... 52 FIGURE 2-8. SWING BRAKE ASSEMBLY................................................................... 54 FIGURE 2-9. SWING HUB ASSEMBLY..................................................................... 58 FIGURE 2-10. LOAD MANAGEMENT INSTALLATION.......................................................... 60 FIGURE 2-11. GROUND CONTROLS INSTALLATION.......................................................... 62 FIGURE 2-12. REMOTE DRIVE CONTROL BOX ASSEMBLY (PRIOR TO JULY 1992)................................ 68 FIGURE 2-13. REMOTE DRIVE CONTROL BOX ASSEMBLY (JULY 1992 TO PRESENT).............................. 70 FIGURE 2-14. DEUTZ F4L-912 ENGINE INSTALLATION..................................................... 72 FIGURE 2-15. GENERATOR INSTALLATION- DEUTZ......................................................... 80 FIGURE 2-16. PUMP COUPLING INSTALLATION............................................................ 84 FIGURE 2-17. PUMP ASSEMBLY - SUNSTRAND............................................................. 86 FIGURE 2-18. PUMP ASSEMBLY - BARNES (OCTOBER 1992 TO S/N 38697).................................... 90 FIGURE 2-19. PUMP ASSEMBLY - HYDRO-AIR (S/N 38697 TO PRESENT)...................................... 92 FIGURE 2-20. TANKS INSTALLATION.................................................................... 94 FIGURE 2-21. HOOD INSTALLATION..................................................................... 98 FIGURE 2-22. OIL COOLER INSTALLATION...............................................................102 SECTION 3 BOOM.........................................................................................105 FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION..................................................106 FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION..................................................107 FIGURE 3-2. CHAIN ADJUSTER ASSEMBLIES..............................................................114 FIGURE 3-3. JIB BOOM INSTALLATION..................................................................118 FIGURE 3-4. EXTEND-A-REACH INSTALLATION............................................................120 FIGURE 3-5. BOOM LENGTH INDICATOR AND LIMIT SWITCHES INSTALLATION..................................122 FIGURE 3-6. BROKEN CHAIN LIMIT SWITCH INSTALLATION (GERMAN/AUSTRIAN EN280 SPECS & ALL CE SPECS)....126 FIGURE 3-7. BOOM WIPERS INSTALLATION...............................................................128 SECTION 4 PLATFORMS....................................................................................131 FIGURE 4-1. PLATFORM COMPONENTS INSTALLATION (LOW MOUNT)...........................................132 FIGURE 4-2. ROTATOR MOTOR ASSEMBLY.................................................................136 FIGURE 4-3. PLATFORM CONSOLE ASSEMBLY (PRIOR TO S/N 25609).........................................138 FIGURE 4-4. PLATFORM CONSOLE ASSEMBLY (S/N 25609 TO PRESENT).......................................142 FIGURE 4-5. OPTIONAL PLATFORM MOUNTED COMPONENTS...................................................146 SECTION 5 CYLINDERS....................................................................................149 FIGURE 5-1. AXLE EXTENSION CYLINDER ASSEMBLY.......................................................150 FIGURE 5-2. BOOM LIFT CYLINDER ASSEMBLY............................................................152 FIGURE 5-3. EXTEND-A-REACH PLATFORM LEVEL CYLINDER ASSEMBLY........................................154 FIGURE 5-4. EXTEND-A-REACH LIFT CYLINDER ASSEMBLY..................................................156 FIGURE 5-5. JACK CYLINDER ASSEMBLY.................................................................158 FIGURE 5-6. MASTER CYLINDER ASSEMBLY...............................................................160 FIGURE 5-7. STEER CYLINDER ASSEMBLY................................................................162 FIGURE 5-8. TELESCOPE CYLINDER ASSEMBLY............................................................164 FIGURE 5-9. CYLINDER BELLOWS INSTALLATION (OPTIONAL)...............................................168 SECTION 6 HYDRAULICS...................................................................................171 FIGURE 6-1. HYDRAULIC DIAGRAM - DRIVE (4WD AND DEUTZ ENGINE) (PRIOR TO S/N 38697)..................172 FIGURE 6-2. HYDRAULIC DIAGRAM - DRIVE (4WD AND DEUTZ ENGINE) (S/N 38697 TO PRESENT)................176 FIGURE 6-3. HYDRAULIC DIAGRAM - MANUAL DESCENT (FRENCH AND ITALIAN SPECS)..........................180 FIGURE 6-4. HYDRAULIC DIAGRAM - STANDARD (PRIOR TO S/N 38697)......................................182 FIGURE 6-5. HYDRAULIC DIAGRAM - STANDARD (S/N 38697 TO PRESENT)....................................186 FIGURE 6-6. HYDRAULIC DIAGRAM LIST................................................................. 0 SECTION 7 ELECTRICAL...................................................................................191 FIGURE 7-1. ELECTRICAL SCHEMATIC (PRIOR TO S/N 38697) (SHEET 1 OF 4)...............................192 FIGURE 7-1. ELECTRICAL SCHEMATIC (PRIOR TO S/N 38697) (SHEET 2 OF 4)...............................193 FIGURE 7-1. ELECTRICAL SCHEMATIC (PRIOR TO S/N 38697) (SHEET 3 OF 4)...............................194 FIGURE 7-1. ELECTRICAL SCHEMATIC (PRIOR TO S/N 38697) (SHEET 4 OF 4)...............................195 FIGURE 7-2. ELECTRICAL SCHEMATIC (S/N 38697 TO PRESENT) (SHEET 1 OF 4).............................196 FIGURE 7-2. ELECTRICAL SCHEMATIC (S/N 38697 TO PRESENT) (SHEET 2 OF 4).............................197 FIGURE 7-2. ELECTRICAL SCHEMATIC (S/N 38697 TO PRESENT) (SHEET 3 OF 4).............................198 FIGURE 7-2. ELECTRICAL SCHEMATIC (S/N 38697 TO PRESENT) (SHEET 4 OF 4).............................199 SECTION 8 DECALS.......................................................................................205 FIGURE 8-1. DECALS INSTALLATION....................................................................206 SECTION 9 RECOMMENDED SERVICE PARTS STOCK..............................................................211 SECTION 10 SPECIAL OPTIONS.............................................................................213
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