JLG 520AJ Boom Lift Parts Manual
434 pages · Publication 31215026
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- Models
- 520AJ
- Manual type
- Parts Manual
- Pages
- 434
- Publication
- 31215026
- Condition
- Brand new

What's inside
From the manual's own table of contents: 69 sections, 167 entries. See sample pages (PDF, 659 KB)
General49 topics
- SECTION 1 - FRAME
- FIGURE 1-1. AXLE INSTALLATION
- FIGURE 1-2. STEER INSTALLATION WITHOUT TOW PACKAGE
- FIGURE 1-3. STEER INSTALLATION WITH TOW PACKAGE
- FIGURE 1-4. WHEEL DRIVE INSTALLATION (4WD)
- FIGURE 1-5. DRIVE HUB AND BRAKE ASSEMBLY - REAR
- FIGURE 1-6. DRIVE HUB ASSEMBLY - FRONT
- FIGURE 1-7. DRIVE MOTOR ASSEMBLY (4WD)
- FIGURE 1-8. FRAME SHIELD INSTALLATION
- SPECS)
- CHINA SPECS)
- AUSTRALIAN, CE AND CHINA SPECS)
- FIGURE 1-12. 4WD VALVES INSTALLATION - FRAME MOUNTED
- FIGURE 1-13. TRACTION VALVE ASSEMBLY - 4WD
- FIGURE 1-14. TOW PACKAGE INSTALLATION (OPTIONAL)
- FIGURE 1-15. TOW BAR ASSEMBLY
- SECTION 2 - TURNTABLE
- FIGURE 2-1. 4WD VALVES INSTALLATION - 450AJ TURNTABLE MOUNTED
- FIGURE 2-2. MAIN VALVE ASSEMBLY
- FIGURE 2-3. AUXILIARY PUMP ASSEMBLY
- FIGURE 2-4. SWING DRIVE AND TURNTABLE BEARING INSTALLATION
- FIGURE 2-5. SWING MOTOR ASSEMBLY
- FIGURE 2-6. TURNTABLE BEARING ASSEMBLY
- FIGURE 2-7. TURNTABLE COVERS INSTALLATION
- FIGURE 2-8. TURNTABLE LOCK INSTALLATION
- FIGURE 2-9. TANKS INSTALLATION
- FIGURE 2-10. DRIVE ORIENTATION INSTALLATION
- FIGURE 2-11. GROUND CONTROL ASSEMBLY (ANSI EXPORT AND AUSTRALIAN SPECS)
- FIGURE 2-12. GROUND CONTROL ASSEMBLY (CE SPECS) (PVC 2001)
- FIGURE 2-13. GROUND CONTROL ASSEMBLY - 450AJ WITH DEUTZ D2.9L4 ENGINE (STAGE V) (CE SPECS)
- FIGURE 2-14. LIGHT PANEL INSTALLATION – GROUND CONTROL
- FIGURE 2-15. ELECTRICAL SYSTEM INSTALLATION
- FIGURE 2-16. WHITE NOISE ALARM INSTALLATION
- FIGURE 2-17. BEACON LIGHT INSTALLATION - AMBER
- FIGURE 2-18. BEACON LIGHT INSTALLATION - BLUE
- FIGURE 2-19. BEACON LIGHT INSTALLATION - RED
- FIGURE 2-20. BATTERY AND CABLE INSTALLATION (PVC 2001)
- FIGURE 2-21. BATTERY AND CABLE INSTALLATION (PVC 2007)
- FIGURE 2-22. HOODS INSTALLATION
- FIGURE 2-23. HOOD ASSEMBLY - TANK SIDE (ROMANIAN BUILT MACHINES)
- FIGURE 2-24. HOOD ASSEMBLY - ENGINE SIDE (ROMANIAN BUILT MACHINES)
- SECTION 3 - ENGINE
- AUSTRALIAN, CE (LRC) AND CHINA SPECS)
- AUSTRALIAN AND CHINA SPECS)
- AND CHINA SPECS)
- FIGURE 3-4. ENGINE COMPONENTS - DEUTZ D2011
- FIGURE 3-8. ENGINE COMPONENTS - DEUTZ D2011 (STAGE V) (PVC 2001)
- FIGURE 3-9. ENGINE INSTALLATION - DEUTZ D2.9L4 ENGINE (STAGE V) (CE SPECS)
- FIGURE 3-10. ENGINE AND PUMP SUB-ASSEMBLY - DEUTZ D2.9L4 ENGINE (STAGE V) (CE SPECS)
Show all 70 sections
FIGURE 6-8. TELESCOPE CYLINDER ASSEMBLY49 topics
- SECTION 7 - HYDRAULIC
- FIGURE 7-1. HYDRAULIC SYSTEM INSTALLATION
- FIGURE 7-2. HYDRAULIC SYSTEM INSTALLATION
- FIGURE 7-3. HYDRAULIC SYSTEM INSTALLATION
- FIGURE 7-4. HYDRAULIC SYSTEM INSTALLATION
- SECTION 8 - ELECTRICAL
- FIGURE 8-1. AC BOX AT PLATFORM INSTALLATION - 110V - ANSI EXPORT SPECS
- FIGURE 8-4. AC BOX AT PLATFORM INSTALLATION - 220V IEC BLUE (CE SPECS WITH 4000W/50HZ GENERATOR)
- GENERATOR (CE SPECS)
- 4000W/50HZ GENERATOR)
- GENERATOR)
- AUSTRALIAN & CE SPECS)
- FIGURE 8-13. AC CABLE INSTALLATION - WITH TWO BREAKERS (CE SPECS)
- FIGURE 8-14. AC CABLE INSTALLATION - WITH THREE BREAKERS (CE SPECS)
- FIGURE 8-15. BATTERY DISCONNECT SWITCH
- FIGURE 8-16. BEACON LIGHT HARNESS (BLUE AND RED BEACON LIGHT)
- FIGURE 8-17. BOOM CABLES & CLAMPS INSTALLATION (4000W GENERATOR) (PVC 2001)
- FIGURE 8-18. BOOM CABLES & CLAMPS INSTALLATION (4000W GENERATOR) (PVC 2007)
- FIGURE 8-19. BOOM CABLES & CLAMPS INSTALLATION (7500W SKYPOWER GENERATOR) (PVC 2001)
- FIGURE 8-20. BOOM CABLES & CLAMPS INSTALLATION (7500W SKYPOWER GENERATOR) (PVC 2007)
- FIGURE 8-21. BOOM HARNESS - MAIN BOOM
- FIGURE 8-22. BOOM HARNESS - MAIN BOOM (8/5 4000W GENERATOR)
- FIGURE 8-23. BOOM HARNESS - TOWER BOOM
- FIGURE 8-24. BOOM HARNESS - TOWER BOOM (8/5 4000W GENERATOR)
- FIGURE 8-25. BREAKER BOX KIT WITH SINGLE DOUBLE POLE BREAKER - CE SPEC
- FIGURE 8-26. BREAKER BOX KIT WITH THREE BREAKERS - CE SPEC
- FIGURE 8-27. BREAKER BOX KIT - 30MA/16 AMP
- FIGURE 8-28. CHASSIS SOLENOID HARNESS
- FIGURE 8-29. ENGINE HARNESS - DEUTZ D2011
- FIGURE 8-30. ENGINE HARNESS - DEUTZ D2.9L4 ENGINE (STAGE V)
- FIGURE 8-31. FUEL HARNESS - DEUTZ D2.9L4 ENGINE (STAGE V)
- FIGURE 8-32. GENERATOR HARNESS - 2500W GENERATOR (50HZ)
- FIGURE 8-33. GENERATOR HARNESS - 4000W GENERATOR
- FIGURE 8-34. GROUND CONTROL PANEL HARNESS
- FIGURE 8-35. PLATFORM CONSOLE BOX HARNESS
- FIGURE 8-36. PLATFORM INTERFACE HARNESS
- FIGURE 8-37. RECEPTACLE BOX KIT - 110V IEC YELLOW (CE SPEC)
- FIGURE 8-38. RECEPTACLE BOX KIT - 220V IEC BLUE (CE SPEC)
- FIGURE 8-39. RECEPTACLE BOX KIT - 220V CEE7 POST GROUND 2IN X 4IN BOX (CE SPEC)
- FIGURE 8-40. RECEPTACLE BOX KIT - 220V CEE7 SIDE GROUND 2IN X 4IN BOX (CE SPEC)
- FIGURE 8-41. RECEPTACLE BOX KIT - 220V AFSINT 107 (CE SPEC)
- FIGURE 8-42. SKYEYE INTERMEDIATE HARNESS
- FIGURE 8-43. SKYEYE RECEIVER HARNESS (PVC 2001)
- FIGURE 8-44. SKYEYE RECEIVER HARNESS (PVC 2007)
- FIGURE 8-45. SKYEYE EMITTER HARNESS (PVC 2001)
- FIGURE 8-46. SKYEYE EMITTER HARNESS (PVC 2007)
- FIGURE 8-47. SKYLINE HARNESS
- FIGURE 8-48. TURNTABLE HARNESS
- FIGURE 8-49. VALVE HARNESS - BOOM VALVE
Inside this manual
Real pages from this parts manual (434 pages). Open the sample pages (PDF, 658 KB)
- Parts illustration, page 122: SECTION 3 - ENGINE
- Parts illustration, page 332: FIGURE 8-20. BOOM CABLES & CLAMPS INSTALLATION (7500W SKYPOWER GENERATOR) (PVC
- Parts illustration, page 416: SECTION 10 - RECOMMENDED SERVICE PARTS STOCK
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 520AJ are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a parts manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 434 pages
Quantity one is the manual described above.
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Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).