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JLG EC520AJ Boom Lift Parts Manual

267 pages · Publication 31217108

$69.57
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Models
EC520AJ
Serial coverage
Prior to C300000330, C180000105-C180000106
Manual type
Parts Manual
Pages
267
Publication
31217108
Condition
Brand new
JLG EC520AJ Boom Lift Parts Manual, publication 31217108

What's inside

From the manual's own table of contents: 57 sections, 120 entries. See sample pages (PDF, 497 KB)

General60 topics
  • SECTION 1 - FRAME
  • FIGURE 1-1. AXLE INSTALLATION
  • FIGURE 1-2. STEER INSTALLATION
  • FIGURE 1-3. WHEEL DRIVE INSTALLATION (2WD)
  • FIGURE 1-4. HUB - SPINDLE ASSEMBLY
  • FIGURE 1-5. DRIVE MOTOR ASSEMBLY
  • FIGURE 1-6. BATTERY INSTALLATION
  • FIGURE 1-7. FRAME SHIELD INSTALLATION
  • FIGURE 1-8. TIRE AND WHEEL INSTALLATION - 33 X 12-20 SOLID NON-MARKING
  • FIGURE 1-9. TIRE AND WHEEL INSTALLATION - 315/55 D20 FOAM FILLED
  • FIGURE 1-10. TIRE AND WHEEL INSTALLATION - 315/55 D20 FOAM FILLED NON-MARKING
  • FIGURE 1-11. CONTROL VALVES INSTALLATION - FRAME MOUNTED
  • FIGURE 1-12. OSCILLATING AXLE VALVE ASSEMBLY
  • SECTION 2 - TURNTABLE
  • FIGURE 2-1. CONTROL VALVES INSTALLATION - TURNTABLE MOUNTED
  • FIGURE 2-2. MAIN VALVE ASSEMBLY
  • FIGURE 2-3. AUXILIARY PUMP ASSEMBLY
  • FIGURE 2-4. ENCLOSURE INSTALLATION
  • FIGURE 2-5. SWING DRIVE AND TURNTABLE BEARING INSTALLATION
  • FIGURE 2-6. SWING MOTOR ASSEMBLY
  • FIGURE 2-7. TURNTABLE BEARING ASSEMBLY
  • FIGURE 2-8. TURNTABLE COVERS INSTALLATION
  • FIGURE 2-9. TURNTABLE LOCK INSTALLATION
  • FIGURE 2-10. TANK AND PUMPS INSTALLATION
  • FIGURE 2-11. HYDRAULIC TANK INSTALLATION
  • FIGURE 2-12. MOTOR ASSEMBLY
  • FIGURE 2-13. DRIVE ORIENTATION INSTALLATION
  • FIGURE 2-14. GROUND CONTROL ASSEMBLY
  • FIGURE 2-15. ELECTRICAL SYSTEM INSTALLATION
  • FIGURE 2-16. BATTERY CHARGER INSTALLATION
  • FIGURE 2-17. BATTERY AND CABLE INSTALLATION
  • FIGURE 2-18. ALARM WHITE NOISE INSTALLATION
  • FIGURE 2-19. BEACON LIGHT INSTALLATION - AMBER
  • FIGURE 2-20. BEACON LIGHT INSTALLATION - BLUE
  • FIGURE 2-21. BEACON LIGHT INSTALLATION - RED
  • FIGURE 2-22. HOODS INSTALLATION
  • FIGURE 2-23. HOOD ASSEMBLY - TANK SIDE
  • FIGURE 2-24. HOOD ASSEMBLY - ENGINE SIDE
  • FIGURE 2-25. COVERS INSTALLATION - COUNTERWEIGHT
  • SECTION 3 - BOOM
  • FIGURE 3-1. CYLINDERS INSTALLATION
  • FIGURE 3-2. BOOM INSTALLATION – WITHOUT AIRLINES
  • FIGURE 3-3. BOOM INSTALLATION – WITH AIRLINE
  • FIGURE 3-4. BOOM AIRLINE INSTALLATION
  • FIGURE 3-5. AIRLINE FITTINGS INSTALLATION
  • FIGURE 3-6. MAIN BOOM INSTALLATION
  • FIGURE 3-7. MAIN BOOM ASSEMBLY
  • FIGURE 3-8. TOWER BOOM ASSEMBLY
  • FIGURE 3-9. JIB INSTALLATION
  • FIGURE 3-10. ROTATOR ASSEMBLY
  • FIGURE 3-11. PLATFORM SUPPORT INSTALLATION - WITH 1 CELL LSS
  • FIGURE 3-12. BOOM VALVES INSTALLATION
  • FIGURE 3-13. BOOM VALVE ASSEMBLY
  • FIGURE 3-14. UPRIGHT VALVE ASSEMBLY
  • SECTION 4 - PLATFORM
  • FIGURE 4-1. PLATFORM ASSEMBLY - 30IN X 4FT (76CM X 1.22M) - SIDE GATE ENTRY
  • FIGURE 4-2. PLATFORM ASSEMBLY - 30IN X 5FT (76CM X 1.52M) - SIDE GATE ENTRY
  • FIGURE 4-3. PLATFORM ASSEMBLY - 30IN X 6FT (76CM X 1.83M) - SIDE GATE ENTRY
  • FIGURE 4-4. PLATFORM ASSEMBLY - 30IN X 3FT (76CM X .91M) - DROP BAR ENTRY
  • EC520AJ
FIGURE 4-5. PLATFORM ASSEMBLY - 30IN X 4FT (76CM X 1.22M) - WITH DROP BAR
FIGURE 4-6. PLATFORM ASSEMBLY - 30IN X 5FT (76CM X 1.52M) - WITH DROP BAR
FIGURE 4-7. PLATFORM ASSEMBLY - 30IN X 6FT (76CM X 1.83M) - WITH DROP BAR
FIGURE 4-8. CONSOLE BOX INSTALLATION - WITH SKYGUARD
FIGURE 4-9. PLATFORM CONSOLE BOX ASSEMBLY - WITH SKYGUARD
FIGURE 4-10. CONTROLLER ASSEMBLY - DRIVE AND STEER
FIGURE 4-11. CONTROLLER ASSEMBLY - LIFT AND SWING
FIGURE 4-12. FOOTSWITCH ASSEMBLY
FIGURE 4-13. TRAY ASSEMBLY
FIGURE 4-14. SKYEYE INSTALLATION
FIGURE 4-15. SKYGUARD BAR INSTALLATION
FIGURE 4-16. SKYLINE INSTALLATION
FIGURE 4-17. PIPE RACK INSTALLATION
SECTION 5 - CYLINDER
FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY
FIGURE 5-2. LEVEL (PLATFORM SLAVE) CYLINDER ASSEMBLY
FIGURE 5-3. LIFT CYLINDER ASSEMBLY - JIB
FIGURE 5-4. LIFT CYLINDER ASSEMBLY - MAIN BOOM
FIGURE 5-5. LIFT CYLINDER ASSEMBLY - TOWER BOOM
FIGURE 5-6. MASTER CYLINDER ASSEMBLY
FIGURE 5-7. STEER CYLINDER ASSEMBLY
FIGURE 5-8. TELESCOPE CYLINDER ASSEMBLY
SECTION 6 - HYDRAULIC
Show all 58 sections
FIGURE 6-1. BOOM HYDRAULIC SYSTEM INSTALLATION
FIGURE 6-2. CHASSIS HYDRAULIC SYSTEM INSTALLATION
SECTION 7 - ELECTRICAL
FIGURE 7-1. BEACON LIGHT HARNESS
FIGURE 7-2. BMS HARNESS
FIGURE 7-3. BOOM CABLES AND CLAMPS
FIGURE 7-4. BOOM HARNESS - MAIN BOOM
FIGURE 7-5. BOOM HARNESS - MAIN BOOM AC CABLE
FIGURE 7-6. BOOM HARNESS - TOWER BOOM
FIGURE 7-7. BOOM HARNESS - TOWER BOOM AC CABLE
FIGURE 7-8. BOOM VALVE HARNESS
FIGURE 7-9. CHARGER HARNESS
FIGURE 7-10. CHASSIS HARNESS ASSEMBLY
FIGURE 7-11. CONTROLLER BRACKET ASSEMBLY
FIGURE 7-12. DRIVE MOTOR HARNESS (RIGHT REAR)
FIGURE 7-13. DRIVE MOTOR HARNESS (LEFT REAR)
FIGURE 7-14. FUSE PLATE ASSEMBLY
FIGURE 7-15. PLATFORM CONSOLE HARNESS - WITH SKYGUARD
FIGURE 7-16. PLATFORM TO BOOM VALVE HARNESS
FIGURE 7-17. PLATFORM CONSOLE BOX HARNESS
FIGURE 7-18. PLATFORM INTERFACE HARNESS
FIGURE 7-19. STEER SENSOR HARNESS
FIGURE 7-20. SKYEYE INTERMEDIATE HARNESS
FIGURE 7-21. SKYEYE RECEIVER HARNESS
FIGURE 7-22. SKYEYE EMITTER HARNESS
FIGURE 7-23. SKYLINE HARNESS
FIGURE 7-24. SKYGUARD HARNESS
FIGURE 7-25. TRACTION HARNESS
FIGURE 7-26. WHEEL DRIVE ELECTRICAL HARNESS INSTALLATION (2WD)
SECTION 8 - DECALS
FIGURE 8-1. DECAL INSTALLATION – CE SPECS
FIGURE 8-2. DECAL INSTALLATION - OPTIONS
SECTION 9 - RECOMMENDED SERVICE PARTS STOCK
FIGURE 9-1. RECOMMENDED SERVICE PARTS STOCK3 topics
  • SECTION 10 - SPECIAL OPTIONS
  • FIGURE 10-1. SPECIAL OPTIONS
  • PART NUMBER INDEX

Inside this manual

Real pages from this parts manual (267 pages). Open the sample pages (PDF, 496 KB)

Sample pages from the JLG EC520AJ Boom Lift Parts Manual: Parts illustration, Parts illustration, Parts illustration
  • Parts illustration, page 149: SECTION 4 - PLATFORM
  • Parts illustration, page 169: SECTION 5 - CYLINDER
  • Parts illustration, page 253: SECTION 8 - DECALS

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.

This 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, 267 pages

Quantity one is the manual described above.

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