JLG 34HA Parts Manual (3120676) PDF Download En
TABLE OF CONTENTS :
JLG 34HA Parts Manual (3120676) PDF Download
SECTION 1 - FRAME................................................................................................................................................. 7 FIGURE 1-1. FRAME, STEERING AND DRIVE COMPONENTS, ASSEMBLIES AND INSTALLATIONS - FIXED AND OSCILLATING AXLES (STANDARD 2WD - DOUBLE ACTING STEER CYLINDER).... 8 FIGURE 1-2. FRAME, STEERING AND DRIVE COMPONENTS, ASSEMBLIES AND INSTALLATIONS - FIXED AND OSCILLATING AXLES (OPTIONAL 2WD - SINGLE ACTING STEER CYLINDER).... 12 FIGURE 1-3. FRAME, STEERING AND DRIVE COMPONENTS, ASSEMBLIES AND INSTALLATIONS - FIXED AND OSCILLATING AXLES (4WD)............................................ 18 FIGURE 1-4. DRIVE HUB ASSEMBLY................................................................................................................................ 22 FIGURE 1-5. DRIVE HUB/BRAKE ASSEMBLY (4WD FRONT) (PRIOR TO DECEMBER 1991)..................................................................................... 26 FIGURE 1-6. DRIVE HUB/BRAKE ASSEMBLY (4WD FRONT) (DECEMBER 1991 TO PRESENT)................................................................................... 28 FIGURE 1-7. DRIVE BRAKE ASSEMBLY (PRIOR TO DECEMBER 1991)..................................................................................................... 32 FIGURE 1-8. DRIVE BRAKE ASSEMBLY (DECEMBER 1991 TO SN 33475).................................................................................................. 34 FIGURE 1-9. DRIVE BRAKE ASSEMBLY (SN 33476 through 56992)..................................................................................................... 36 FIGURE 1-10. DRIVE MOTOR ASSEMBLY (GAS AND DIESEL)............................................................................................................ 38 FIGURE 1-11. DRIVE MOTOR ASSEMBLY (ELECTRIC).................................................................................................................. 40 FIGURE 1-12. VALVE INSTALLATION (FRAME MOUNTED)............................................................................................................... 44 FIGURE 1-13. VALVE LOCKOUT ASSEMBLY........................................................................................................................... 46 FIGURE 1-14. TOW PACKAGE INSTALLATION......................................................................................................................... 48 SECTION 2 - TURNTABLE............................................................................................................................................. 51 FIGURE 2-1. CONTROL VALVES INSTALLATIONS...................................................................................................................... 52 FIGURE 2-2. CONTROL VALVE ASSEMBLY - 3 & 4 SECTION RACINE BANG-BANG........................................................................................... 56 FIGURE 2-3. CONTROL VALVE ASSEMBLY - 3 SECTION RACINE BANG-BANG............................................................................................... 60 FIGURE 2-4. CONTROL VALVE ASSEMBLY - PROPORTIONAL............................................................................................................. 62 FIGURE 2-5. VALVE ASSEMBLY - SINGLE STACK RACINE.............................................................................................................. 66 FIGURE 2-6. MODULAR CONTROL VALVE ASSEMBLY.................................................................................................................... 68 FIGURE 2-7. SWING DRIVE AND BEARING INSTALLATION.............................................................................................................. 70 FIGURE 2-8. SWING BRAKE ASSEMBLY (MACHINES BUILT THROUGH 1992)................................................................................................ 74 FIGURE 2-9. SWING MOTOR ASSEMBLY (MACHINES BUILT PRIOR TO 1993)............................................................................................... 76 FIGURE 2-10. SWING MOTOR ASSEMBLY (MACHINES BUILT 1993 TO PRESENT)............................................................................................ 78 FIGURE 2-11. ROTARY OIL COUPLING INSTALLATION................................................................................................................. 80 FIGURE 2-12. FORD VSG-411 GAS ENGINE INSTALLATION (PRIOR TO JUNE 1995)........................................................................................ 82 FIGURE 2-13. FORD VSG-413 GAS ENGINE INSTALLATION (JUNE 1995 TO PRESENT)...................................................................................... 88 FIGURE 2-14. DUAL FUEL INSTALLATION - FORD.................................................................................................................... 94 FIGURE 2-15. GENERATOR INSTALLATION - 110V (FORD)............................................................................................................. 96 FIGURE 2-16. DEUTZ F2L-1011 DIESEL ENGINE INSTALLATION........................................................................................................ 98 FIGURE 2-17. GENERATOR INSTALLATION - 110V (DEUTZ)............................................................................................................104 FIGURE 2-18. ELECTRIC MOTOR, BATTERIES AND CHARGER INSTALLATIONS..............................................................................................108 FIGURE 2-19. BATTERY CHARGER ASSEMBLY.........................................................................................................................112 FIGURE 2-20. CONTACTOR BOX ASSEMBLY...........................................................................................................................114 FIGURE 2-21. PUMP ASSEMBLY - SUNSTRAND (GAS AND DIESEL MACHINES)..............................................................................................116 FIGURE 2-22. PUMP ASSEMBLY - SINGLE SECTION (GAS AND DIESEL MACHINES) (PRIOR TO AUGUST 1992)..................................................................120 FIGURE 2-23. PUMP ASSEMBLY - SINGLE SECTION (GAS AND DIESEL MACHINES) (AUGUST 1992 TO PRESENT)................................................................122 FIGURE 2-24. PUMP ASSEMBLY - 3 SECTION (ELECTRIC MACHINES)....................................................................................................124 FIGURE 2-25. TANK INSTALLATION................................................................................................................................126 FIGURE 2-26. GROUND CONTROL BOX ASSEMBLY......................................................................................................................130 FIGURE 2-27. HOODS, LIGHTS AND ALARMS INSTALLATION............................................................................................................134 SECTION 3 - BOOM..................................................................................................................................................137 FIGURE 3-1. TURNTABLE, BOOM AND HORIZONTAL LIMIT SWITCH INSTALLATIONS.........................................................................................138 FIGURE 3-2. BOOM ASSEMBLIES...................................................................................................................................142 SECTION 4 - PLATFORM..............................................................................................................................................145 FIGURE 4-1. STANDARD PLATFORM, CONTROLS AND SUPPORT INSTALLATIONS.............................................................................................146 FIGURE 4-2. LOW MOUNT PLATFORM, CONTROLS AND SUPPORT INSTALLATIONS............................................................................................150 FIGURE 4-3. ROTATOR MOTOR ASSEMBLY (WORM GEAR DRIVE)..........................................................................................................154 FIGURE 4-4. ROTATOR MOTOR ASSEMBLY (HYDRAULIC PISTON).........................................................................................................156 FIGURE 4-5. PLATFORM CONSOLE BOX ASSEMBLY.....................................................................................................................158 FIGURE 4-6. PLATFORM CONSOLE BOX ASSEMBLY (PROPORTIONAL CONTROLS).............................................................................................162 FIGURE 4-7. OPTIONAL COMMON PLATFORM MOUNTED COMPONENTS.......................................................................................................166 SECTION 5 - CYLINDER..............................................................................................................................................169 FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY....................................................................................................................170 FIGURE 5-2. PLATFORM LEVEL CYLINDER ASSEMBLY..................................................................................................................172 FIGURE 5-3. LIFT (BOOM) CYLINDER ASSEMBLY.....................................................................................................................174 FIGURE 5-4. ARTICULATE CYLINDER ASSEMBLY......................................................................................................................176 FIGURE 5-5. STEER CYLINDER ASSEMBLY - 2WD - DOUBLE ROD........................................................................................................178 FIGURE 5-6. STEER CYLINDER ASSEMBLY - 2WD - SINGLE ROD........................................................................................................180 FIGURE 5-7. STEER CYLINDER ASSEMBLY - 4WD.....................................................................................................................182 FIGURE 5-8. TELESCOPE CYLINDER ASSEMBLY.......................................................................................................................184 FIGURE 5-9. CYLINDER BELLOWS INSTALLATIONS....................................................................................................................186 SECTION 6 - HYDRAULIC.............................................................................................................................................189 FIGURE 6-1. HYDRAULIC DIAGRAM - AXLE LOCKOUT..................................................................................................................190 FIGURE 6-2. HYDRAULIC DIAGRAM - DRIVE (2WD)...................................................................................................................192 FIGURE 6-3. HYDRAULIC DIAGRAM - DRIVE (4WD)...................................................................................................................196 FIGURE 6-4. HYDRAULIC DIAGRAM - DRIVE (ELECTRIC)..............................................................................................................200 FIGURE 6-5. HYDRAULIC DIAGRAM - ROTATOR (HYDRAULIC PISTON)....................................................................................................202 FIGURE 6-6. HYDRAULIC DIAGRAM - ROTATOR (WORM GEAR)...........................................................................................................204 FIGURE 6-7. HYDRAULIC DIAGRAM - STANDARD (FORD - DEUTZ).......................................................................................................206 FIGURE 6-8. HYDRAULIC DIAGRAM - STANDARD (ELECTRIC)...........................................................................................................210 FIGURE 6-9. HYDRAULIC DIAGRAM - PROPORTIONAL CONTROLS.........................................................................................................214 FIGURE 6-10. HYDRAULIC DIAGRAM - STEER........................................................................................................................218 FIGURE 6-11. HYDRAULIC DIAGRAM - TOW..........................................................................................................................220 FIGURE 6-12. HYDRAULIC DIAGRAM - LIFT UP RELIEF (FORD AND DEUTZ)..............................................................................................222 FIGURE 6-13. HYDRAULIC DIAGRAM LIST...........................................................................................................................224 SECTION 7 - ELECTRICAL............................................................................................................................................227 FIGURE 7-1. ELECTRICAL DIAGRAM LIST...........................................................................................................................228 FIGURE 7-2. ELECTRICAL DIAGRAM - PLATFORM (ELECTRIC)..........................................................................................................232 FIGURE 7-3. ELECTRICAL DIAGRAM - PLATFORM (FORD AND DEUTZ)....................................................................................................234 FIGURE 7-4. ELECTRICAL DIAGRAM - PLATFORM (PROPORTIONAL CONTROLS).............................................................................................236 FIGURE 7-5. ELECTRICAL DIAGRAM - GROUND CONTROL (ELECTRIC)....................................................................................................238 FIGURE 7-6. ELECTRICAL DIAGRAM - GROUND CONTROL (FORD)........................................................................................................240 FIGURE 7-7. ELECTRICAL DIAGRAM - GROUND CONTROL (FORD WITH PROPORTIONAL CONTROLS).............................................................................242 FIGURE 7-8. ELECTRICAL DIAGRAM - GROUND CONTROL (DEUTZ).......................................................................................................244 FIGURE 7-9. ELECTRICAL DIAGRAM - GROUND CONTROL (DEUTZ WITH PROPORTIONAL CONTROLS)............................................................................246 SECTION 8 - DECALS................................................................................................................................................249 FIGURE 8-1. DECALS INSTALLATION - STANDARD....................................................................................................................250 SECTION 9 - RECOMMENDED SERVICE PARTS STOCK.......................................................................................................................255 FIGURE 9-1. MODEL 34HA STANDARD PARTS.........................................................................................................................256 FIGURE 9-2. MODEL 34HA VARIABLE PARTS.........................................................................................................................260 SECTION 10 - SPECIAL OPTIONS......................................................................................................................................263 FIGURE 10-1. SPECIAL OPTIONS..................................................................................................................................264 PART NUMBER INDEX.................................................................................................................................................267
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