JLG 120Hx Parts Manual (3120687) – PDF DOWNLOAD

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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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