JLG 120Hx Parts Manual (3120687) – PDF DOWNLOAD
TABLE OF CONTENTS:
JLG 120Hx Parts Manual (3120687) – PDF DOWNLOAD
SECTION 1 FRAME............................................................................ 7 FIGURE 1-1. FRAME, VALVES AND SHIELDS INSTALLATION..................................... 0 FIGURE 1-2. VALVE ASSEMBLY - HYDRO AIR................................................. 12 FIGURE 1-3. STEERING AND AXLES INSTALLATION............................................ 0 FIGURE 1-4. TIRE AND WHEEL DRIVE INSTALLATIONS......................................... 0 FIGURE 1-5. DRIVE HUB ASSEMBLY......................................................... 0 FIGURE 1-6. DRIVE BRAKE ASSEMBLY....................................................... 0 FIGURE 1-7. DRIVE MOTOR ASSEMBLY - REXROTH............................................. 28 FIGURE 1-8. JACK CYLINDER INSTALLATION................................................. 0 SECTION 2 TURNTABLE........................................................................ 33 FIGURE 2-1. TURNTABLE, BOOM AND SWITCHES INSTALLATION.................................. 0 FIGURE 2-2. VALVES INSTALLATION - TURNTABLE MOUNTED.................................... 38 FIGURE 2-3. VALVES ASSEMBLY - HYDRO AIR (PRIOR TO S/N 38697)........................... 40 FIGURE 2-4. VALVES 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....................................... 0 FIGURE 2-7. SWING MOTOR ASSEMBLY....................................................... 0 FIGURE 2-8. SWING BRAKE ASSEMBLY....................................................... 54 FIGURE 2-9. SWING HUB ASSEMBLY......................................................... 0 FIGURE 2-10. LOAD MANAGEMENT INSTALLATION.............................................. 0 FIGURE 2-11. GROUND CONTROLS INSTALLATION.............................................. 0 FIGURE 2-12. REMOTE DRIVE CONTROL BOX ASSEMBLY (PRIOR TO JULY 1992).................... 66 FIGURE 2-13. REMOTE DRIVE CONTROL BOX ASSEMBLY (JULY 1992 TO PRESENT).................. 0 FIGURE 2-14. DEUTZ F4L-912 ENGINE INSTALLATION......................................... 70 FIGURE 2-15. GENERATOR INSTALLATION- DEUTZ............................................. 0 FIGURE 2-16. PUMP COUPLING INSTALLATION................................................ 82 FIGURE 2-17. PUMP ASSEMBLY - SUNSTRAND................................................. 84 FIGURE 2-18. PUMP ASSEMBLY - BARNES (OCTOBER 1992 TO S/N 38697)........................ 88 FIGURE 2-19. PUMP ASSEMBLY - HYDRO-AIR (S/N 38697 TO PRESENT).......................... 90 FIGURE 2-20. TANKS INSTALLATION........................................................ 92 FIGURE 2-21. HOOD INSTALLATION......................................................... 96 FIGURE 2-22. OIL COOLER INSTALLATION...................................................100 SECTION 3 BOOM.............................................................................103 FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION......................................104 FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION......................................105 FIGURE 3-2. CHAIN ADJUSTER ASSEMBLIES..................................................112 FIGURE 3-3. JIB BOOM INSTALLATION......................................................116 FIGURE 3-4. EXTEND-A-REACH INSTALLATION................................................118 FIGURE 3-5. BOOM LENGTH INDICATOR AND LIMIT SWITCHES INSTALLATION......................120 FIGURE 3-6. BOOM WIPERS INSTALLATION...................................................122 SECTION 4 PLATFORMS........................................................................125 FIGURE 4-1. PLATFORM COMPONENTS INSTALLATION (LOW MOUNT)...............................126 FIGURE 4-2. ROTATOR MOTOR ASSEMBLY.....................................................130 FIGURE 4-3. PLATFORM CONSOLE ASSEMBLY..................................................132 FIGURE 4-4. OPTIONAL PLATFORM MOUNTED COMPONENTS.......................................136 SECTION 5 CYLINDERS........................................................................139 FIGURE 5-1. AXLE EXTENSION CYLINDER ASSEMBLY...........................................140 FIGURE 5-2. BOOM LIFT CYLINDER ASSEMBLY................................................142 FIGURE 5-3. EXTEND-A-REACH PLATFORM LEVEL CYLINDER ASSEMBLY............................144 FIGURE 5-4. EXTEND-A-REACH LIFT CYLINDER ASSEMBLY......................................146 FIGURE 5-5. JACK CYLINDER ASSEMBLY.....................................................148 FIGURE 5-6. MASTER CYLINDER ASSEMBLY...................................................150 FIGURE 5-7. STEER CYLINDER ASSEMBLY....................................................152 FIGURE 5-8. TELESCOPE CYLINDER ASSEMBLY................................................154 FIGURE 5-9. CYLINDER BELLOWS INSTALLATION (OPTIONAL)...................................158 SECTION 6 HYDRAULICS.......................................................................161 FIGURE 6-1. HYDRAULIC DIAGRAM - DRIVE (4WD AND DEUTZ ENGINE) (PRIOR TO S/N 38697)......162 FIGURE 6-2. HYDRAULIC DIAGRAM - DRIVE (4WD AND DEUTZ ENGINE) (S/N 38697 TO PRESENT)....166 FIGURE 6-3. HYDRAULIC DIAGRAM - STANDARD (PRIOR TO S/N 38697)..........................170 FIGURE 6-4. HYDRAULIC DIAGRAM - STANDARD (S/N 38697 TO PRESENT)........................174 FIGURE 6-5. HYDRAULIC DIAGRAM LIST..................................................... 0 SECTION 7 ELECTRICAL.......................................................................179 FIGURE 7-1. ELECTRICAL DIAGRAM - BOOM LENGTH INDICATOR.................................180 FIGURE 7-2. ELECTRICAL DIAGRAM - 4WS...................................................181 FIGURE 7-3. ELECTRICAL DIAGRAM - FRAME.................................................182 FIGURE 7-4. ELECTRICAL DIAGRAM - PLATFORM. (PRIOR TO S/N 38697)........................183 FIGURE 7-5. ELECTRICAL DIAGRAM - PLATFORM (S/N 38697 TO PRESENT) (SHEET 1 OF 2)........184 FIGURE 7-5. ELECTRICAL DIAGRAM - PLATFORM (S/N 38697 TO PRESENT) (SHEET 2 OF 2)........185 FIGURE 7-6. ELECTRICAL DIAGRAM - STANDARD (PRIOR TO S/N 38697) (SHEET 1 OF 4)..........186 FIGURE 7-6. ELECTRICAL DIAGRAM - STANDARD (PRIOR TO S/N 38697) (SHEET 2 OF 4)..........187 FIGURE 7-6. ELECTRICAL DIAGRAM - STANDARD (PRIOR TO S/N 38697) (SHEET 3 OF 4)..........188 FIGURE 7-6. ELECTRICAL DIAGRAM - STANDARD (PRIOR TO S/N 38697) (SHEET 4 OF 4)..........189 FIGURE 7-7. ELECTRICAL DIAGRAM - STANDARD (S/N 38697 TO PRESENT) (SHEET 1 OF 4)........190 FIGURE 7-7. ELECTRICAL DIAGRAM - STANDARD (S/N 38697 TO PRESENT) (SHEET 2 OF 4)........191 FIGURE 7-7. ELECTRICAL DIAGRAM - STANDARD (S/N 38697 TO PRESENT) (SHEET 3 OF 4)........192 FIGURE 7-7. ELECTRICAL DIAGRAM - STANDARD (S/N 38697 TO PRESENT) (SHEET 4 OF 4)........193 SECTION 8 DECALS...........................................................................199 FIGURE 8-1. DECALS INSTALLATION........................................................200 SECTION 9 RECOMMENDED SERVICE PARTS STOCK..................................................205 SECTION 10 SPECIAL OPTIONS.................................................................207
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