JLG 450A, 450AJ Boom Lift Service Manual
652 pages · Publication 3121659
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- Models
- 450A, 450AJ
- Serial coverage
- Prior to B300005761, 0300199221-0300199224, 0300200428, 0300201105-0300201109, 0300201481, 0300201482, 0300201528, 0300201529, 0300201575-0300201577, 0300201623, 0300201624, 0300201668, 0300201811-0300201814, 0300201858-0300201862, 0300201906-0300201910, 0300201954-0300201958, 0300201991-0300272317, 1300007279-1300007373, E300002833-E300007990, Exclude Serial Number Range: 0300272185-0300272190, B300005569, E300007814
- Manual type
- Service Manual
- Pages
- 652
- Publication
- 3121659
- Condition
- Brand new
What's inside
From the manual's own table of contents: 629 sections, 700 entries. See sample pages (PDF, 632 KB)
General
Hydraulic System Safety
Maintenance8 topics
- Operating Specifications
- Dimensional Data
- Capacities
- Tires
- Engine Data
- Hydraulic Oil
- Maintenance and Lubrication
- Machine Preparation, Inspection, and Maintenance
Preparation, Inspection, and Maintenance
Pre-Start Inspection
Pre-Delivery Inspection and Frequent Inspection
Annual Machine Inspection
Preventive 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
Hydraulic System
Lubrication
Battery
Lubrication and Servicing1 topic
- Lubrication and Information
Hydraulic Oil
Changing Hydraulic Oil
Lubrication Specifications1 topic
- Cylinder Drift Test
Theory
Show all 629 sections
Cylinder Leakage Test
Cylinder Thermal 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 and Wheels
Tire Damage
Tire Replacement
Wheel Replacement
Wheel Installation7 topics
- Oscillating Axle System
- Lockout Cylinder Bleeding
- Chassis Tilt Indicator System
- Oscillating Axle Lockout Test
- Drive Orientation System
- Drive System
- Wheel Drive Assembly
Removal
Installation1 topic
- Torque Hub
Roll and Leak Testing
Tightening and Torquing Bolts
Main Disassembly for “B” Drives
Hub-Spindle Disassembly
Cover Disassembly
Carrier Disassembly
Assemble Carrier
Cover Sub-Assembly
Hub-Spindle Sub-Assembly
Main Assembly
Tool List1 topic
- Re-Align Torque Hub Input Coupling
Equipment Required
Procedure1 topic
- Drive Motor
Description
Shaft Seal Replacement
Loop Flushing Valve
Troubleshooting
Disassembly
Inspection
Assembly
Initial Start-Up Procedures2 topics
- Drive Brake
- Swing Bearing
Turntable Bearing Mounting Bolt Condition Check
Wear Tolerance1 topic
- Swing Motor
Preparation Before Disassembly
Disassembly and Inspection
One Piece Stator Construction
Two Piece Stator Construction
Final Checks1 topic
- Generator
Maintenance Schedule
Overload Protection
Inspecting Brushes, Replacing Brushes and Cleaning Slip Rings
Generator Disassembly and Assembly
Lead Connection List for Generator4 topics
- Deutz Engine
- GM Engine
- Kubota Engine
- Deutz Engine - D2.9L4
Check Oil Level
Replacing Engine Oil
Replacing the Oil Filter
Replacing the Fuel Filters1 topic
- Deutz Engine - D2011
Replacing the Fuel Filter2 topics
- Deutz EMR 2
- GM Engine General Maintenance
Maintenance of the Drive Belt
Engine Electrical System Maintenance
Checking/Filling Engine Oil Level
Changing the Engine Oil
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
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
- Kubota Engine General Maintenance
Checking Oil Level
REPLACING OIL SEPARATOR2 topics
- Counterweight
- Boom Systems
Platform Control Enable System
Transport Position Sensing System
Platform Load Sensing System (LSS) (if Equipped)
Beyond Transport Position - Drive Speed Cutback System
Drive/Steer –Boom Function Interlock System
Jib Lift End of Stroke Dampening (if equipped)
Main Boom Lift End of Stroke Dampening
Emergency Decent System1 topic
- Platform
Platform/Support Removal
Platform/Support Installation4 topics
- Rotator
- Platform Level Cylinder
- Main Boom Powertrack
- Powertrack Maintenance
Remove Link
Install New Link
Replace Fixed End Brackets
Replace Moving End Brackets3 topics
- Boom Cleanliness Guidelines
- Boom Shimming Procedure
- Boom Assembly
Upper Boom Removal
Mid Boom Removal
Lower Boom Removal
Upper Boom Disassembly
Upper Boom Assembly
Lower Boom Installation
Mid Boom Installation
Upper Boom Installation1 topic
- Rotator Assembly
Theory of Operation
Required Tools
Making a Seal Tool
Before Disassembly
Installing Counterbalance Valve
Greasing Thrust Washers
Testing the Actuator
Installation and Bleeding2 topics
- Foot Switch Adjustment
- Skyguard
Operation
Function Test
Diagnostics & Troubleshooting1 topic
- Lubricating O-rings In The Hydraulic System
Cup and Brush
Dip Method
Spray Method
Brush-on Method1 topic
- Hydraulic Connection Assembly And Torque Specification
Tapered Thread Types
Straight Thread Types, Tube and Hose Connections
Straight Thread Types, Port Connections
Flange Connection Types
Tightening Methods
Assembly And Torque Specifications
Assembly Instructions for American Standard Pipe Thread Tapered (NPTF) Connections
Assembly Instructions for British Standard Pipe Thread Tapered (BSPT) Connections
Assembly Instructions for 37° (JIC) Flare Fittings
Assembly Instructions for 45° SAE Flare Fittings
Assembly Instructions for O-Ring Face Seal (ORFS) Fittings
Assembly Instructions for DIN 24° Flare Bite Type Fittings (MBTL and MBTS)
Assembly Instructions for Bulkhead (BH) Fittings
Assembly Instructions for O-Ring Boss (ORB) Fittings
Assembly Instructions for Adjustable Port End Metric (MFF) Fittings
Assembly Instructions for Metric ISO 6149 (MPP) Port Assembly Stud Ends
Assembly instructions for Adjustable Port End (BSPP) Fittings
Assembly Instructions for Flange Connections: (FL61 and FL62)
Double Wrench Method
FFWR and TFFT Methods
Adjustable Stud End Assembly
O-ring Installation (Replacement)1 topic
- Hydraulic Cylinders
Axle Lockout Cylinder
Platform Level Cylinder
Jib Lift Cylinder
Main Lift Cylinder (USA Built Machines, SN 0300201991 through 0300226834)
Main Lift Cylinder (USA Built Machines, SN 0300226835 through 0300234431)
Tower Boom Lift Cylinder
Master Cylinder
Steer Cylinder
Telescope Cylinder (SN 0300234432 to Present, SN E300002833 to Present)1 topic
- Pressure Setting Procedure
Main System Relief
Steer Left Relief
Steer Right Relief
Swing Relief
Jib Lift Down Relief
Platform Level Up Relief
Platform Level Down Relief3 topics
- Drive Pump Pre-Fill Procedure
- Hydraulic Schematics
- JLG Control System Analyzer Kit Instructions
Introduction
To Connect the JLG Control System Analyzer
Using the Analyzer
Changing the Access Level of the Hand Held Analyzer
Adjusting Parameters Using the Hand Held Analyzer
Machine Setup
Tilt Sensor Calibration
Ground Control Console Display Gauge1 topic
- LSS System
Diagnostic Menu
Calibration Procedure
Testing & Evaluation2 topics
- Resetting The MSSO System
- Machine Model Adjustment
Adjustment Notes
Machine Orientation When Performing Test2 topics
- General
- Multimeter Basics
Grounding
Backprobing
Min/Max
Polarity
Scale
Voltage Measurement
Resistance Measurement
Continuity Measurement
Current Measurement1 topic
- Applying Silicone Dielectric Compound to Electrical Connections
Installation of Dielectric Grease
Deutsch HD, DT, DTM, DRC Series
AMP Seal
AMP Mate-N-Lok
DIN Connectors
Exclusions1 topic
- AMP Connector
Applying Silicone Dielectric Compound to AMP Connectors
Wedge Lock
Service - Voltage Reading1 topic
- Deutsch Connectors
DT/DTP Series Assembly
DT/DTP Series Disassembly
HD30/HDP20 Series Assembly
HD30/HDP20 Series Disassembly1 topic
- Telematics Gateway
Telematics-Ready (TCU) Plug1 topic
- Wiring Harness Connector Labels
Connector Labels
Component Labels2 topics
- Wiring Harness
- Electrical Schematics
Maintenance and Lubrication Diagram - Deutz 2.3 Engine
Maintenance and Lubrication Diagram - GM Engine
Maintenance and Lubrication Diagram - Deutz 2.9 Engine
Maintenance and Lubrication Diagram - Kubota Engine
Torque Chart - Sheet 1 of 5 - (SAE Fasteners)
Torque Chart - Sheet 2 of 5 - (SAE Fasteners)
Torque Chart - Sheet 3 of 5 - (SAE Fasteners)
Torque Chart - Sheet 4 of 5 - (METRIC Fasteners)
Torque Chart - Sheet 5 of 5 - (METRIC Fasteners)
Engine Operating Temperature Specifications - Deutz 2.9
Hydraulic Oil Operating Temperature Specifications
Engine Oil Operating Temperature Specifications - Deutz 2011
Engine Operating Temperature Specifications - GM
Engine Operating Temperature Specifications - Kubota
Axle Installation
Steer Installation (Without Tow Package)
Steer Installation (With Tow Package)
Wheel Drive Installation
Bolt Tightening Sequence
Drive Hub and Brake Assembly (2WD and 4WD) - Sheet 1 of 2
Drive Hub and Brake Assembly (2WD and 4WD) - Sheet 2 of 2
Drive Hub (4WD Front Only) -Sheet 1 of 2
Drive Hub (4WD Front Only) -Sheet 2of 2
Drive Hub (Cross-Section)
Cluster Gear Punch Marks
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
Drive Brake
Swing System
Swing Bearing Torque Sequence
Swing Bolt Feeler Gauge Check
Swing Bearing Tolerance Measuring Point
Swing Bearing Tolerance Boom Placement - Sheet 1 of 2
Swing Bearing Tolerance Boom Placement - Sheet 2 of 2
Swing Bearing Removal
Swing Motor - Cutaway
Swing Motor Removal and Installation
Swing Motor Assembly
Inspecting Generator Brushes, Replacing Brushes and Cleaning Slip Rings
Generator Troubleshooting Circuit Diagram - Sheet 1 of 2
Generator Troubleshooting Circuit Diagram - Sheet 2 of 2
Generator Electrical Circuit Diagram
Power Board PC1 Electrical Circuit Diagram
Power Board PC2 Electrical Circuit Diagram - Sheet 1 of 2
Power Board PC2 Electrical Circuit Diagram - Sheet 2 of 2
Deutz D2.9L4 Engine Components
Deutz D2011Engine Components - Sheet 1 of 3
Deutz D2011Engine Components - Sheet 2 of 3
Deutz D2011Engine Components - Sheet 3 of 3
GM Engine Components - Sheet 1 of 2
GM Engine Components - Sheet 2 of 2
Kubota Engine Components - Sheet 1 of 2
Kubota Engine Components - Sheet 2 of 2
Engine Oil Viscosity
Location of the Oil Filter
Location of the Fuel Filter
Location of the Fuel Pre-Filter
Deutz Engine Dipstick
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
Filter Lock Assembly
Pressure Regulator Section
(TMAP) Sensor & Electronic Throttle Control (ETC)
Mixer Assembly
Counterweight
Location of Components
Platform Support Torque Values (without LSS and with 4 Cell LSS)
Platform Support Torque Values (with 1 Cell LSS)
Rotator Removal/Installation
Platform Level Cylinder Removal and Installation
Location of Components - Powertrack
Boom Assembly
Main Boom Assembly - Sheet 1 of 2
Main Boom Assembly - Sheet 2 of 2
Jib Assembly
Fly Boom Wear Pads
Base Boom Wear Pads
Cables and Clamps Installation - Sheet 1 of 8
Cables and Clamps Installation - Sheet 2 of 8
Cables and Clamps Installation - Sheet 3 of 8
Cables and Clamps Installation - Sheet 4 of 8
Cables and Clamps Installation - Sheet 5 of 8
Cables and Clamps Installation - Sheet 6 of 8
Cables and Clamps Installation - Sheet 7 of 8
Cables and Clamps Installation - Sheet 8 of 8
Rotator - Exploded View
Rotator - Assembly Drawing
Rotator Counterbalance Valve
NPTF thread
BSPT thread
JIC Thread
SAE Thread
ORFS Thread
MTBL-MBTS Thread
Bulkhead Thread
MFF-BSPP Thread
ORB-MPP Thread
Torque Wrench Angle
FFWR Method
Cylinder Barrel Support
Cylinder Head Removal
Cylinder Rod Support
Composite Bearing Installation
Rod Seal Installation
Cylinder Head Seal Installation
Wiper Seal Installation
Installation of Head Seal Kit
Piston Seal Kit Installation
Installation of Piston Seal Kit
Tapered Bushing Removal
Tapered Bushing Installation
Seating the Tapered Bearing
Main Lift Cylinder (Romanian Built Machines, SN E300002833 through E300004190)
Hydraulics Installation - Sheet 1 of 28
Hydraulics Installation - Sheet 2 of 28
Hydraulics Installation - Sheet 3 of 28
Hydraulics Installation - Sheet 4 of 28
Hydraulics Installation - Sheet 5 of 28
Hydraulics Installation - Sheet 6 of 28
Hydraulics Installation - Sheet 7 of 28
Hydraulics Installation - Sheet 8 of 28
Hydraulics Installation - Sheet 9 of 28
Hydraulics Installation - Sheet 10 of 28
Hydraulics Installation - Sheet 11 of 28
Hydraulics Installation - Sheet 12 of 28
Hydraulics Installation - Sheet 13 of 28
Hydraulics Installation - Sheet 14 of 28
Hydraulics Installation - Sheet 15 of 28
Hydraulics Installation - Sheet 16 of 28
Hydraulics Installation - Sheet 17 of 28
Hydraulics Installation - Sheet 18 of 28
Hydraulics Installation - Sheet 19 of 28
Hydraulics Installation - Sheet 20 of 28
Hydraulics Installation - Sheet 21 of 28
Hydraulics Installation - Sheet 22 of 28
Hydraulics Installation - Sheet 23 of 28
Hydraulics Installation - Sheet 24 of 28
Hydraulics Installation - Sheet 25 of 28
Hydraulics Installation - Sheet 26 of 28
Hydraulics Installation - Sheet 27 of 28
Hydraulics Installation - Sheet 28 of 28
Main Control Valve Identification
Main Control Valve Torque Values
Upright Valve Identification
Upright Valve Torque Values
Fly Boom Valve Identification
Fly Boom Valve Torque Values
Hydraulic Schematics - Sheet 1 of 4
Hydraulic Schematics - Sheet 2 of 4
Hydraulic Schematics - Sheet 3 of 4
Hydraulic Schematics - Sheet 4 of 4
Hand Held Analyzer
Tilt Sensor Location
Splash Screen
Diagnostic Screen
Engine Diagnostic Screen
Analyzer Connecting Points
Ground Control Module - Sheet 1 of 3
Ground Control Module - Sheet 2 of 3
Ground Control Module - Sheet 3 of 3
Platform Module - Sheet 1 of 2
Platform Module - Sheet 2 of 2
Analyzer Flow Chart
Analyzer Flow Chart - Diagnostics (Software Version 2.7) - Sheet 1 of 3
Analyzer Flow Chart - Diagnostics (Software Version 2.7) - Sheet 2 of 3
Analyzer Flow Chart - Diagnostics (Software Version 2.7) - Sheet 3 of 3
Analyzer Flow Chart - Personalities (Software Version 2.7) - Sheet 1 of 3
Analyzer Flow Chart - Personalities (Software Version 2.7) - Sheet 2 of 3
Analyzer Flow Chart - Personalities (Software Version 2.7) - Sheet 3 of 3
Analyzer Flow Chart - Machine Setup (Software Version 2.7)
Analyzer Flow Chart - Calibrations (Software Version 2.7)
Voltage Measurement (DC)
Current Measurement (DC)
Application to Male Contacts
Use of Seal Plugs
Brad-Harrison M12
Phoenix Contact M12
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
Telematics Gateway Harness - Sheet 1 of 3
Telematics Gateway Harness - Sheet 2 of 3
Telematics Gateway Harness - Sheet 3 of 3
Electrical Installation - Sheet 1 of 10
Electrical Installation - Sheet 2 of 10
Electrical Installation - Sheet 3 of 10
Electrical Installation - Sheet 4 of 10
Electrical Installation - Sheet 5 of 10
Electrical Installation - Sheet 6 of 10
Electrical Installation - Sheet 7 of 10
Electrical Installation - Sheet 8 of 10
Electrical Installation - Sheet 9 of 10
Electrical Installation - Sheet 10 of 10
Platform Console Harness (Without SkyGuard) - Sheet 1 of 12
Platform Console Harness (Without SkyGuard) - Sheet 2 of12
Platform Console Harness (Without SkyGuard) - Sheet 3 of 12
Platform Console Harness (Without SkyGuard) - Sheet 4 of 12
Platform Console Harness (Without SkyGuard) - Sheet 5 of 12
Platform Console Harness (Without SkyGuard) - Sheet 6 of 12
Platform Console Harness (Without SkyGuard) - Sheet 7 of 12
Platform Console Harness (Without SkyGuard) - Sheet 8 of 12
Platform Console Harness (Without SkyGuard) - Sheet 9 of 12
Platform Console Harness (Without SkyGuard) - Sheet 10 of 12
Platform Console Harness (Without SkyGuard) - Sheet 11 of 12
Platform Console Harness (Without SkyGuard) - Sheet 12 of 12
Platform Valve Harness - Sheet 1 of 2
Platform Valve Harness - Sheet 2 of 2
Boom Lower Harness - Standard
Boom Lower Harness - Arctic
Boom Upper Harness - Standard
Boom Upper Harness - Arctic
Turntable Harness - Sheet 1 of 14
Turntable Harness - Sheet 2 of 14
Turntable Harness - Sheet 3 of 14
Turntable Harness - Sheet 4 of 14
Turntable Harness - Sheet 5 of 14
Turntable Harness - Sheet 6 of 14
Turntable Harness - Sheet 7 of 14
Turntable Harness - Sheet 8 of 14
Turntable Harness - Sheet 9 of 14
Turntable Harness - Sheet 10 of 14
Turntable Harness - Sheet 11 of 14
Turntable Harness - Sheet 12 of 14
Turntable Harness - Sheet 13 of 14
Turntable Harness - Sheet 14 of 14
Chassis Solenoid Harness - Sheet 1 of 3
Chassis Solenoid Harness - Sheet 2 of 3
Chassis Solenoid Harness - Sheet 3 of 3
Main Valve Harness - Sheet 1 of 8
Main Valve Harness - Sheet 2 of 8
Main Valve Harness - Sheet 3 of 8
Main Valve Harness - Sheet 4 of 8
Main Valve Harness - Sheet 5 of 8
Main Valve Harness - Sheet 6 of 8
Main Valve Harness - Sheet 7 of 8
Main Valve Harness - Sheet 8 of 8
Tower Upright Valve Harness - Sheet 1 of 5
Tower Upright Valve Harness - Sheet 2 of 5
Tower Upright Valve Harness - Sheet 3 of 5
Tower Upright Valve Harness - Sheet 4 of 5
Tower Upright Valve Harness - Sheet 5 of 5
Ground Control Panel Harness - Sheet 1 of 6
Ground Control Panel Harness - Sheet 2 of 6
Ground Control Panel Harness - Sheet 3 of 6
Ground Control Panel Harness - Sheet 4 of 6
Ground Control Panel Harness - Sheet 5 of 6
Ground Control Panel Harness - Sheet 6 of 6
Cribbing Enable Harness
Deutz T4I Engine Harness - Sheet 1 of 3
Deutz T4I Engine Harness - Sheet 2 of 3
Deutz T4I Engine Harness - Sheet 3 of 3
Deutz 2.9 Harness - Sheet 1 of 12
Deutz 2.9 Harness - Sheet 2 of 12
Deutz 2.9 Harness - Sheet 3 of 12
Deutz 2.9 Harness - Sheet 4 of 12
Deutz 2.9 Harness - Sheet 5 of 12
Deutz 2.9 Harness - Sheet 6 of 12
Deutz 2.9 Harness - Sheet 7 of 12
Deutz 2.9 Harness - Sheet 8 of 12
Deutz 2.9 Harness - Sheet 9 of 12
Deutz 2.9 Harness - Sheet 10 of 12
Deutz 2.9 Harness - Sheet 11 of 12
Deutz 2.9 Harness - Sheet 12 of 12
GM Engine Harness - Sheet 1 of 3
GM Engine Harness - Sheet 2 of 3
GM Engine Harness - Sheet 3 of 3
Skyguard Harness - Sheet 1 of 2
Skyguard Harness - Sheet 2 of 2
Chassis Head and Tail Lights Harness - Sheet 1 of 5
Chassis Head and Tail Lights Harness - Sheet 2 of 5
Chassis Head and Tail Lights Harness - Sheet 3 of 5
Chassis Head and Tail Lights Harness - Sheet 4 of 5
Chassis Head and Tail Lights Harness - Sheet 5 of 5
Kubota Engine Harness
Electrical Schematic - Sheet 1 of 20
Electrical Schematic - Sheet 2 of 20
Electrical Schematic - Sheet 3 of 20
Electrical Schematic - Sheet 4 of 20
Electrical Schematic - Sheet 5 of 20
Electrical Schematic - Sheet 6 of 20
Electrical Schematic - Sheet 7 of 20
Electrical Schematic - Sheet 8 of 20
Electrical Schematic - Sheet 9 of 20
Electrical Schematic - Sheet 10 of 20
Electrical Schematic - Sheet 11 of 20
Electrical Schematic - Sheet 12 of 20
Electrical Schematic - Sheet 13 of 20
Electrical Schematic - Sheet 14 of 20
Electrical Schematic - Sheet 15 of 20
Electrical Schematic - Sheet 16 of 20
Electrical Schematic - Sheet 17 of 20
Electrical Schematic - Sheet 18 of 20
Electrical Schematic - Sheet 19 of 20
Electrical Schematic - Sheet 20 of 20
Operating Specifications
Dimensional Data
Capacities
Tires
Deutz D2.9L4
Kubota WG 2503
Mobilfluid 424
Quintolubric 888-46
Mobil EAL 224H Specs
Exxon Univis HVI 26 Specs
Mobil EAL Envirosyn H 46
Mobil SHC Hydraulic EAL46
Inspection and Maintenance
Cylinder Drift
Inspection and Preventive Maintenance Schedule
Wheel Torque Chart
Drive System Mode Chart
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
Swing Motor Troubleshooting
Deutz Trouble Codes (D2.9 Engine)
DTC to SPN/FMI Cross Reference Chart
LPG Fuel System Diagnosis
GM Engine Symptom Diagnosis
Engine Fault Codes - Kubota Engine
SkyGuard Function Table
NPTF Pipe Thread
BSPT Pipe Thread
37° Flare (JIC)Thread - Steel
37° Flare (JIC)Thread - Aluminum/Brass
45° Flare (SAE) - Steel
45° Flare (SAE) - Aluminum/Brass
O-ring Face Seal (ORFS) - Steel
O-ring Face Seal (ORFS) - Aluminum/Brass
DIN 24°Cone (MBTL & MBTS)
Bulkhead Fittings (BH) - INCH
Bulkhead Fittings (BH) - METRIC
O-ring Boss (ORB) - Table 1 of 6
O-ring Boss (ORB) - Table 2 of 6
O-ring Boss (ORB) - Table 3 of 6
O-ring Boss (ORB) - Table 4 of 6
O-ring Boss (ORB) - Table 5 of 6
O-ring Boss (ORB) - Table 6 of 6
Metric Flat Face Port (MFF) - L Series - Table 1 of 3
Metric Flat Face Port (MFF) - L Series - Table 2 of 3
Metric Flat Face Port (MFF) - L Series - Table 3 of 3
Metric Flat Face Port (MFF) - S Series - Table 1 of 3
Metric Flat Face Port (MFF) - S Series - Table 2 of 3
Metric Pipe Parallel O-Ring Boss (MPP)
British Standard Parallel Pipe Port (BSPP) - L Series - Table 1 of 3
British Standard Parallel Pipe Port (BSPP) - L Series - Table 2 of 3
British Standard Parallel Pipe Port (BSPP) - L Series - Table 3 of 3
British Standard Parallel Pipe Port (BSPP) - S Series - Table 1 of 3
British Standard Parallel Pipe Port (BSPP) - S Series - Table 2 of 3
British Standard Parallel Pipe Port (BSPP) - S Series - Table 3 of 3
Flange Code (FL61 & FL62) -Inch Fasteners
Flange Code (FL61 & FL62) - Metric Fasteners
Cartridge Torque Values
Coil Torque Values
Analyzer Abbreviations
Machine Configuration Programming Information (Software Version P2.7)
Machine Configuration Programming Settings - 450A (Software Version P2.7)
Machine Configuration Programming Settings - 450AJ (Software Version P2.7)
Diagnostic Menu Descriptions
Accessory Weights
SkyGlazier Capacity Reductions
Pipe Rack Capacity Reductions
LSS Troubleshooting Chart
Machine Model Adjustment Speeds
Inside this manual
Real pages from this service manual (652 pages). Open the sample pages (PDF, 629 KB)
- Troubleshooting, page 109: Table 3-9. Swing Motor Troubleshooting
- Specifications, page 469: SECTION 6 - JLG CONTROL SYSTEM
- Diagram, page 629: SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
- Color page, page 235: SECTION 4 - BOOM & PLATFORM
- Color page, page 514: SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
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Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 450A, 450AJ 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 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, 652 pages
Quantity one is the manual described above.
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Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
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).