JLG 120Hx Parts Manual (3120820) – PDF DOWNLOAD (Eng)

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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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