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JLG 450A Series II, 450AJ Series II Boom Lift Service Manual

472 pages · Publication 3121180

$69.57
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Models
450A Series II, 450AJ Series II
Serial coverage
Prior to 1300007279, Prior to E300001115, 0300062713, 0300062755, 0300064188, 0300064241, 0300064340, 0300064366, 0300064407, 0300064430, 0300064580, 0300064581, 0300064583, 0300064605-0300064609, 0300064691, 0300064705, 0300064706, 0300064735, 0300064737, 0300064753, 0300064754, 0300064774, 0300064775, 0300064792, 0300064794, 0300064806, 0300064918, 0300064923-0300064928, 0300064933, 0300064934, 0300065012, 0300065014-0300065028, 0300065031-0300065046, 0300065049, 0300065050, 0300065063, 0300065066, 0300065067, 0300065078, 0300065080-0300160834
Manual type
Service Manual
Pages
472
Publication
3121180
Condition
Brand new
JLG 450A Series II, 450AJ Series II Boom Lift Service Manual, publication 3121180

What's inside

From the manual's own table of contents: 520 sections, 583 entries. See sample pages (PDF, 674 KB)

General
Hydraulic System Safety
Maintenance4 topics
  • Capacities
  • Tires
  • Engine
  • Specifications and Performance Data
Reach Specifications
Dimensional Data
Chassis1 topic
  • Function Speeds
Machine Orientation When Doing Speed Tests
Test Notes2 topics
  • Torque Requirements
  • Lubrication
Hydraulic Oil6 topics
  • Major Component Weights
  • Pressure Settings - PSI (BAR)
  • Serial Number Location
  • Operator Maintenance
  • Draining Propane Regulator Oil Build Up (Prior to S/N 0300137808)
  • Propane Fuel Filter Replacement
Removal
Installation1 topic
  • Propane System Pressure Relief
Preparation, Inspection, and Maintenance
Pre-Start Inspection
Pre-Delivery Inspection and Frequent Inspection
Annual Machine Inspection
Preventative Maintenance1 topic
  • Service and Guidelines
Safety and Workmanship
Cleanliness
Components Removal and Installation
Component Disassembly and Reassembly
Pressure-Fit Parts
Bearings
Gaskets
Bolt Usage and Torque Application
Show all 520 sections
Hydraulic Lines and Electrical Wiring
Hydraulic System
Lubrication
Battery
Lubrication and Servicing1 topic
  • Lubrication and Information
Changing Hydraulic Oil
Lubrication Specifications1 topic
  • Cylinder Drift Test
SECTION NO. TITLE PAGE NO. Platform Drift
Cylinder Drift2 topics
  • Pins and Composite Bearing Repair Guidelines
  • Welding on JLG Equipment
DO the Following When Welding on JLG Equipment
DO NOT Do the Following When Welding on JLG Equipment1 topic
  • Tires & Wheels
Tire Inflation
Tire Damage
Pneumatic Tires
Polyurethane Foam Filled Tires
Solid Flex Tires
Tire Replacement
Wheel Replacement
Wheel Installation1 topic
  • Torque Hub (Machines Built Before S/N 0300071527)
Roll, Leak, and Brake Testing
Tightening and Torquing Bolts
Main Disassembly
Input Carrier Disassembly
Output Carrier Disassembly
Housing-Spindle Disassembly
Spindle-Brake Disassembly
Input Carrier Sub-Assembly
Output Carrier Sub-Assembly
Spindle-Brake Sub-Assembly
Housing-Spindle Sub-Assembly
DW2B INTEGRAL BRAKE CHECK
Main Assembly1 topic
  • Torque Hub (Machines built after S/N 0300071527)
Roll and Leak Testing
Oil Information
MAIN DISASSEMBLY for “B” Drives
Hub-Spindle Disassembly
Cover Disassembly
Carrier Disassembly
Assemble Carrier
Cover Sub-Assembly
Hub-Spindle Sub-Assembly
Tool List1 topic
  • Re-Aligning Torque Hub Input Coupling
Equipment Required
Procedure1 topic
  • Drive Motor
Disassembly
Inspection
Assembly
Drive Motor Troubleshooting
Description
Shaft Seal Replacement
Loop Flushing Valve
Troubleshooting
SECTION NO. TITLE PAGE NO. Inspection
Initial Start-up Procedures2 topics
  • Adjustment Procedure For Lockout Valve
  • Oscillating Axle Bleeding Procedure and Lockout Test
Lockout Cylinder Bleeding (Early Cylinders)
Lockout Cylinder Bleeding (Ram Cylinders)
Oscillating Axle Lockout Test1 topic
  • Swing Bearing
Turntable Bearing Mounting Bolt Condition Check
Check Frame To Bearing Bolts
Wear Tolerance1 topic
  • Swing Motor
Preparation Before Disassembly
Disassembly and Inspection
One Piece Stator Assembly
Two Piece Stator Assembly
Final Checks1 topic
  • Semi-Track
Testing
Removing
Normal Wear
Adjustment1 topic
  • Generator
Every 250 hours
Every 500 hours
Overload Protection
Brushes and Slip Rings1 topic
  • Ford EFI Engine
Performing Diagnostics
EFI Diagnostics
ECM and Sensors
Intake Air Temperature (IAT) Sensor
Manifold Absolute Pressure (MAP) Sensor
Engine Control Module (ECM)
ECM Inputs/Outputs
Throttle Position (TP) Sensor1 topic
  • Circuit Testing Tools
Electrostatic Discharge Damage
Fuel System1 topic
  • Deutz Engine
Checking Oil Level
Changing Engine Oil
Changing Oil Filter
Replacing Fuel Filter
Cleaning Fuel Strainer2 topics
  • Deutz EMR 2 (S/N 85332 to Present)
  • GM Engine General Maintenance
Drive Belt Maintenance
SECTION NO. TITLE PAGE NO. Engine Electrical System Maintenance
Checking/Filling Engine Oil Level
Coolant Fill Procedure - Dual Fuel Engine1 topic
  • GM Engine Dual Fuel System
Fuel Filter
Electric Lock Off
EPR Assembly
Low Pressure Regulator (LPR)
Air Fuel Mixer
Electronic Throttle Control (ETC)
Engine Control Module
Heated Exhaust Gas Oxygen Sensor
Gasoline Multi Point Fuel Injection System (MPFI)
Gasoline Fuel Pump
Gasoline Pressure And Temperature Sensor Manifold
Fuel Injector Rail
Fuel Injector1 topic
  • GM Engine Fuel System Repair
Propane Fuel System Pressure Relief
Propane Fuel System Leak Test
Propane Fuel Filter Replacement
Electronic Pressure Regulator (EPR) Assembly Replacement
Temperature Manifold Absolute Pressure (TMAP) Sensor
Electronic Throttle Control Replacement
MIXER REPLACEMENT
Coolant Hose Replacement
Vapor Hose Replacement
Engine Control Module Replacement
Heated Exhaust Gas Oxygen Sensor Replacement1 topic
  • GM Engine LPG Fuel System Diagnosis
Fuel System Description
Diagnostic Aids1 topic
  • Perkins Engine General Maintenance
Replacing the Engine Crankcase Breather
Engine Oil Level - Check
Engine Oil and Filter - Change
Fuel Filter/Water Separator
Setting Actuator
Speed Sensor Installation2 topics
  • Engine Radiator Fill Procedure - Perkins & Caterpillar
  • DGC DIAGNOSTIC SUPPORT AND TROUBLE CODE DEFINITIONS
Section Layout
Fault Code Broadcast
Diagnostic Trouble Codes
MIL Output
Diagnostic Calibration Configuration and Corrective Actions
Fault/Diagnostic Trouble Code Interaction
DBW Diagnostic Test1 topic
  • Diagnostic Trouble Code Fault Descriptions
DTC 116- ECT Higher Than Expected Stage 1
DTC 117- ECT/CHT Low Voltage
DTC 118- ECT/CHT High Voltage
DTC 122- TPS1 Signal Voltage Low
SECTION NO. TITLE PAGE NO. DTC 123- TPS1 Signal Voltage High
DTC 217- ECT Higher Than Expected 2
DTC 219- RPM Higher Than Max Allowed Governed Speed
DTC 336- Crank Signal Input Noise
DTC 337- Loss of Crank Input Signal
DTC 521- Oil Pressure Sender/Switch High Pressure
DTC 524- Oil Pressure Low
DTC 562- Battery Voltage (VBat) Low
DTC 563- Battery Voltage (VBat) High
DTC 601- Microprocessor Failure - FLASH
DTC 604- Microprocessor Failure - RAM
DTC 606- Microprocessor Failure - COP
DTC 642- 5 Volt External Low Voltage
DTC 643- 5 Volt External High Voltage
DTC 1612- Microprocessor Failure - RTI 1
DTC 1613- Microprocessor Failure - RTI 2
DTC 1614- Microprocessor Failure - RTI 3
DTC 1615- Microprocessor Failure - A/D
DTC 1616- Microprocessor Failure - interrupt
DTC 1625- CAN J1939 Shutdown Request
DTC 1626- CAN J1939 Transmit (Tx) Fault
DTC 1627- CAN J1939 Receive (Rx) Fault
DTC 1628- CAN Address Conflict Failure
DTC 1629- J1939 TSC1 Message Receipt Loss
DTC 1652- TPS1 Loss of Communications
DTC 2111- Unable to Reach Lower TPS
DTC 2112- Unable to Reach Higher TPS
DTC 9999- Throttle Actuator Failsafe Spring Failure
DTC to SPN/FMI Table1 topic
  • Boom Maintenance
Removal of Boom Assembly
Disassembly of Main Boom
Assembly of Main Boom
Installation of Boom Assembly1 topic
  • Rotator
Theory of Operation
Assembly and Testing
Required Tools
Installing Counterbalance Valve1 topic
  • Cylinder Repair -USA Manufactured Only
Cleaning and Inspection1 topic
  • Hydraulic Pump (Gear)
Inspect Parts For Wear
General Information
SECTION NO. TITLE PAGE NO. Reverse Shaft Rotation of Pump
Placing Pump Back Into Service1 topic
  • Variable Pump
Ports and Pressure Gauges
NFPE Control
Removal and Installation of FNR and NFPE Modules
Removal and Installation of FNR and NFPE Control Orifices
Charge Relief Valve
Shaft Seal and Shaft Replacement
Charge Pump2 topics
  • Hydraulic Component Start-Up Procedures and Recommendations
  • Pressure Setting Procedure
Bang-Bang Main Relief
Steer
Platform Level Up
Platform Level Down
Articulating Jib
Proportional Main Relief
Lift Down
Swing8 topics
  • Introduction
  • Connect JLG Control System Analyzer
  • Using Analyzer
  • Changing Hand Held Analyzer Access Level
  • Adjusting Parameters Using the Hand Held Analyzer
  • Machine Setup
  • Machine Personality Settings
  • System Test
Test from Platform
Test from the Ground Station2 topics
  • General
  • Multimeter Basics
Grounding
Backprobing
Min/Max
Polarity
Scale
Voltage Measurement
Resistance Measurement
Continuity Measurement
Current Measurement2 topics
  • Applying Silicone Dielectric Compound to Electrical Connections
  • AMP Connector
Applying Silicone Dielectric Compound to AMP Connectors
Wedge Lock1 topic
  • Deutsch Connectors
DT/DTP Series Assembly
DT/DTP Series Disassembly
HD30/HDP20 Series Assembly
HD30/HDP20 Series Disassembly
Serial Number Locations
Operator Maintenance and Lubrication Diagram
Filter Lock Assembly
Torque Chart (SAE Fasteners - Sheet 1 of 7)
Torque Chart (SAE Fasteners - Sheet 2 of 7)
Torque Chart (SAE Fasteners - Sheet 3 of 7)
Torque Chart (SAE Fasteners - Sheet 4 of 7)
Torque Chart (METRIC Fasteners - Sheet 5 of 7)
Torque Chart (METRIC Fasteners - Sheet 6 of 7)
Torque Chart (METRIC Fasteners - Sheet 7 of 7)
Engine Operating Temperature Specifications - Deutz
Engine Operating Temperature Specifications - Ford
Engine Operating Temperature Specifications - Caterpillar
Engine Operating Temperature Specifications - GM
Engine Operating Temperature Specifications - Perkins
Main Disassembly Drawing 1
Main Disassembly Drawing 2
Spindle Brake Disassembly
Spindle Brake Sub-Assembly
Main Assembly Drawing11 topic
  • Figure 3-11. Main Assembly Drawing 2
Assembly Drawing - Without Integral Input Brake - Sheet 1 of 2
Assembly Drawing - Without Integral Input Brake - Sheet 2 of 2
Assembly Drawing - With Integral Input Brake - Sheet 1 of 2
Assembly Drawing - With Integral Input Brake - Sheet 2 of 2
Assembly Tools - Bearing Cone Pressing - “B” Bearing
Assembly Tools - Bearing Cone Pressing - “A” Bearing
Assembly Tools - Bearing Cup Pressing - “A” & “B” Bearings
Assembly Tools - Seal Pressing
Assembly Tools - Spacer - Brake Disc Installation
Assembly Tools - Brake Retaining Ring Installation
Cluster Gear Punch Marks
Drive Motor
Drive Motor Cross Section
Removing Shaft Seal
Loop Flushing Spool
Plugs, Fittings, and Speed Sensor
End Cap
Valve Plate & Rear Shaft Bearing
Cylinder Kit
Shaft Seal
Shaft & Front Bearing
Swash Plate & Servo Piston
Cylinder Kit Disassembly
Servo Piston
Cylinder Kit Assembly
Swash Plate and Journal Bearing
Shaft and Front Bearing
Cylinder Kit Installation
Servo Spring and Minimum Angle Stop
Valve Plate and Rear Bearing
Plugs and Fittings Installation
Chassis Torque Values - Sheet 1 of 2
Chassis Torque Values - Sheet 2 of 2
Valve Adjustment
Swing Bearing Installation
Swing Bearing Drive
Swing Bearing Torque Sequence
Swing Bearing Feeler Gauge Check
Swing Bearing Tolerance Measuring Point
Swing Motor - Cutaway
Swing Motor Removal and Installation
Swing Motor - Exploded View
Track Adjustment and Installation
Auxiliary Pump - Sheet 1 of 2
Auxiliary Pump - Sheet 2 of 2
Inspecting Generator Brushes, Replacing Brushes, and Cleaning Slip Rings
EFI Component Location
Typical Fuel System
Engine Oil Viscosity
EMR 2 Engine Side Equipment
Deutz EMR 2 Troubleshooting Flow Chart
Deutz EMR 2 Vehicle Side Connection Diagram
Deutz EMR 2 Engine Side Connection Diagram - Sheet 1 of 2
Deutz EMR 2 Engine Side Connection Diagram - Sheet 2 of 2
EMR 2 Engine Plug Pin Identification
EMR 2 Vehicle Plug Pin Identification
EMR2 Fault Codes - Sheet 1 of 5
EMR2 Fault Codes - Sheet 2 of 5
EMR2 Fault Codes - Sheet 3 of 5
EMR2 Fault Codes - Sheet 4 of 5
EMR2 Fault Codes - Sheet 5 of 5
Engine Oil Dip Stick
Electric Fuel Lock Off
Low Pressure Regulators
ETC throttle control device
LPG Engine Control Unit (ECM)
ECM Assembly
Heated Exhaust Gas Oxygen Sensor (HEGO)
Gasoline Fuel Pressure and Temperature Manifold Assembly
Pressure Regulator Section
(TMAP) Sensor & Electronic Throttle Control (ETC)
Mixer Assembly
GM 3.0L Engine - Sheet 1 of 2
GM 3.0L Engine - Sheet 2 of 2
Crankcase Breather - Perkins
Perkins Engine
Faults Page with Active Fault Message
Faults Page with Historic Fault Message
Custom Fault Variable Interface
Historic Fault Information Interface
Snapshot Data Interface
Flight Data Recorder Interface
Clear Faults Prompt
Exhaust Venturi Adjustment
Counterweight
Location of Components - Boom Removal
Boom Assembly
Boom Limit Switches - US Manufactured
Boom Limit Switches - Euro Manufactured
Main Boom
Timing Marks
Rotator Assembly - Cutaway
Rotary Actuator - Exploded View
Rotary Actuator - Assembly Drawing
Rotator Counterbalance Valve
Platform Support Torque Values
Cylinder Barrel Support
Cap Screw Removal
Axle Lockout Cylinder - USA Built Machines Prior to S/N 03000107512
Axle Lockout Cylinder - Belgium Built Machines Prior to S/N 1300003222
Platform Level Assembly (450A)
Platform Level Cylinder (450AJ) - USA Built Machines
Platform Level Cylinder (450AJ) - Belgium Built Machines
Jib Cylinder - USA Built Machines
Jib Cylinder - Belgium Built Machines
Main Lift Cylinder - USA Built Machines
Main Lift Cylinder - Belgium Built Machines
Tower Lift Cylinder - USA Built Machines
Tower Lift Cylinder - Belgium Built Machines
Master Cylinder (450A)
Master Cylinder (450AJ) - USA Built Machines
Master Cylinder(450AJ) - Belgium Built Machines
Steer Cylinder - USA Machines Prior to S/N 87393
Steer Cylinder Assembly - USA Machines S/N 87393 to Present
Steer Cylinder - Belgium Built Machines
Telescope Cylinder - USA Built Machines
Telescope Cylinder - Belgium Built Machines
Cylinder Rod Support
Tapered Bushing Removal
Gar-Max Bearing Installation
Rod Seal Installation
Poly-Pak Piston Seal Installation
Wiper Seal Installation
Installation of Head Seal Kit
Piston Seal Kit Installation
Tapered Bushing Installation
Rod Assembly Installation
Shim Adjustable Charge Relief Valve Components
Gauge Port Locations
Plugs/Fittings Size & Torque
Screw Adjustable Charge Relief Valve Components
Shaft Seal Components
Installation of Shaft Seal
Shaft Components
Charge Pump Components
Main Control Valve
Main Control Valve Torque Values
Platform Control Valve
Hand Held Analyzer
Control Module Location
Analyzer Connecting Points
ADE Control System Block Diagram
Analyzer Flow Chart, Prior to Version 5.X Software - Sheet 1 of 4
Analyzer Flow Chart, Prior to Version 5.X Software - Sheet 2 of 4
Analyzer Flow Chart, Prior to Version 5.X Software - Sheet 3 of 4
Analyzer Flow Chart, Prior to Version 5.X Software - Sheet 4 of 4
Analyzer Flow Chart, Version 5.X Software - Sheet 1 of 4
Analyzer Flow Chart, Version 5.X Software - Sheet 2 of 4
Analyzer Flow Chart, Version 5.X Software - Sheet 3 of 4
Analyzer Flow Chart, Version 5.X Software - Sheet 4 of 4
Analyzer Flow Chart, Version 6.X Software - Sheet 1 of 3
Analyzer Flow Chart, Version 6.X Software - Sheet 2 of 3
Analyzer Flow Chart, Version 6.X Software - Sheet 3 of 3
System Test Flow Chart - Platform Tests
System Test Flow Chart - Ground Station Tests
Voltage Measurement (DC)
Current Measurement (DC)
Connector Assembly Figure 1
AMP Connector
Connector Assembly Figure 2
Connector Assembly Figure 3
Connector Assembly Figure 4
Connector Disassembly
Connector Installation
DT/DTP Contact Installation
DT/DTP Contact Removal
HD/HDP Contact Installation
HD/HDP Locking Contacts Into Position
HD/HDP Contact Removal
HD/HDP Unlocking Contacts
Electrical Components Installation - Sheet 1
Electrical Components Installation - Sheet 2
Electrical Schematic - Sheet 1 of 4
Electrical Schematic - Sheet 2 of 4
Electrical Schematic - Sheet 3 of 4
Electrical Schematic - Sheet 4 of 4
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 1 of 6
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 2 of 6
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 3 of 6
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 4 of 6
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 5 of 6
Electrical Schematic - Deutz EMR2 & GM Engine - Sheet 6 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 1 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 2 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 3 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 4 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 5 of 6
Electrical Schematic - Deutz, GM, & CAT Engine - Sheet 6 of 6
Electrical Schematic 1001141989 - Sheet 1of 4 (LH)
Electrical Schematic 1001141989 - Sheet 1of 4 (RH)
CAT/Perkins Engine Electrical Schematic 1001141989 - Sheet 2 of 4 (LH)
CAT/Perkins Engine Electrical Schematic 1001141989 - Sheet 2 of 4 (RH)
Deutz Engine Electrical Schematic 1001141989 - Sheet 3 of 4
GM/PSI Engine Electrical Schematic 1001141989 - Sheet 4 of 4
Electrical Schematic 1001102901(LH)
GM/PSI Engine Electrical Schematic 1001102901 (RH)
Hydraulic Schematic 2792780 D - Sheet 1 of 3 (LH)
Hydraulic Schematic 2792780 D - Sheet 1 of 3 (RH)
Hydraulic Schematic 2792780 D - Sheet 2 of 3 (LH)
Hydraulic Schematic 2792780 D - Sheet 2 of 3 (RH)
Hydraulic Schematic 2792780 D - Sheet 3 of 3 (LH)
Hydraulic Schematic 2792780 D - Sheet 3 of 3 (RH)
Hydraulic Schematic 1283460 - Sheet 1 of 7 (LH)
Hydraulic Schematic 1283460 - Sheet 1 of 7 (RH)
Hydraulic Schematic 1283460 - Sheet 2 of 7 (LH)
Hydraulic Schematic 1283460 - Sheet 2 of 7 (RH)
Hydraulic Schematic 1283460 - Sheet 3 of 7 (LH)
Hydraulic Schematic 1283460 - Sheet 3 of 7 (RH)
Hydraulic Schematic 1283460 - Sheet 4 of 7 (LH)
Hydraulic Schematic 1283460 - Sheet 4 of 7 (RH)
Hydraulic Schematic 1283460 - Sheet 5 of 7
Hydraulic Schematic 1283460 - Sheet 6 of 7
Hydraulic Schematic 1283460 - Sheet 7 of 7 (LH)
Hydraulic Schematic 1283460 - Sheet 7 of 7 (RH)
Capacities
Tires
Ford LRG-425 (Gas or Dual Fuel)
Deutz F3M1011F
Deutz F3M2011F
Caterpillar 3024/C2.2
Reach Specifications - 450
Dimensional Data - 450
Chassis Specifications - 450
Function Speeds (In Seconds)
Torque Specification
Engine Torque Requirements - Ford
Engine Torque Requirements - Deutz
Mobilfluid 424 Specs
Mobil DTE 13M Specs
UCon Hydrolube HP-5046
Mobil EAL H 46 Specs
Exxon Univis HVI 26 Specs
Quintolubric 888-46
Component Weights
Pressure Settings
Inspection and Maintenance
Inspection and Preventive Maintenance Schedule
Wheel Torque Chart
Motor Trouble Shooting
Excessive Noise and/or Vibration
System Operating Hot
Won’t Shift or Slow to Start
Displacement Identifiers
Slipper Foot Thickness & End Play
Cylinder Block Measurements
Chassis Torque Values
Swing Motor Troubleshooting
Adjustment Chart
ECM Diagnostic Trouble Codes
LPF Fuel System Diagnosis
Symptom Diagnosis
DTC to SPN/FMI Cross Reference Chart
J1939 Diagnostic Lamp Configuration
Diagnostic Corrective Actions
Historic Fault Information Interface Functions
Cylinder Head and Tapered Bushing Torque Specifications
Holding Valve Torque Specifications
Hydraulic Pump Bolt Torque Chart
Recommended Gauge Size
Personality Ranges/Defaults
Machine Configuration Programming Information Prior to Software Version P5.3
Machine Configuration Programming Information Software Version P5.3 to P6.1
Machine Configuration Programming Information Software Version P6.1 to Present
System Test Messages
Machine Diagnostics Parameters
Fault Codes, Displayed Faults, and Descriptions - Prior to S/N 0300066949
Fault Codes, Displayed Faults, and Descriptions - S/N 0300066949 & S/N 1300000001 to Present

Inside this manual

Real pages from this service manual (472 pages). Open the sample pages (PDF, 673 KB)

Sample pages from the JLG 450A Series II, 450AJ Series II Boom Lift Service Manual: Specifications, Troubleshooting, Diagram, Color page, Color page
  • Specifications, page 315: SECTION 5 - HYDRAULICS
  • Troubleshooting, page 392: SECTION 6 - JLG CONTROL SYSTEM
  • Diagram, page 434: SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
  • Color page: SECTION 3 - CHASSIS & TURNTABLE
  • Color page: SECTION 6 - JLG CONTROL SYSTEM

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 450A Series II, 450AJ Series II are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.

This manual: Service Manual 3121180$69.57
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This is a service manual

Here's how it compares to the other manual types.

This manual

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.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

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, 472 pages

Quantity one is the manual described above.

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Ships in 1 business day.

60-day returns

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Other editions and similar models

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