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JLG
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450A
JLG 450A Service Manual
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Ser
vic
e and Ma
intenance
Manu
al
Models
450A
450AJ
PVC
2001
31215022
December 19, 2019 - Rev A
AS/NZS
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2
Table of Contents
Default Chapter
3
Bhydraulic System Safety
3
Maintenance
3
Table of Contents
5
Specifications
21
Operating Specifications
21
Dimensional Data
21
Capacities
21
Tires
21
Engine Data
22
Hydraulic Oil
22
Major Component Weight
23
Maintenance and Lubrication
27
Threadlocking Compound
33
Torque Charts
34
SAE Fastener Torque Chart
34
SAE Fastener Torque Chart (Continued)
35
SAE Fastener Torque Chart (Continued)
37
SAE Fastener Torque Chart (Continued)
38
SAE Fastener Torque Chart (Continued)
39
Metric Fastener Torque Chart
40
Metric Fastener Torque Chart (Continued)
41
Metric Fastener Torque Chart (Continued)
43
General
45
Machine Preparation, Inspection, and Maintenance
45
Preparation, Inspection, and Maintenance
45
Pre-Start Inspection
45
Pre-Delivery Inspection and Frequent Inspection
45
Annual Machine Inspection
45
Preventive Maintenance
45
Service and Guidelines
46
General
46
Safety and Workmanship
46
Cleanliness
46
Components Removal and Installation
46
Component Disassembly and Reassembly
47
Pressure-Fit Parts
47
Bearings
47
Gaskets
47
Bolt Usage and Torque Application
47
Hydraulic System
47
Lubrication
47
Battery
47
Lubrication and Servicing
47
Lubrication and Information
48
Hydraulic System
48
Hydraulic Oil
48
Changing Hydraulic Oil
48
Lubrication Specifications
48
Cylinder Drift Test
49
Theory
49
Cylinder Leakage
49
Cylinder Thermal Drift
49
Pins and Composite Bearing Repair Guidelines
50
Welding on JLG Equipment
50
Do the Following When Welding on JLG Equipment
50
Do NOT Do the Following When Welding on JLG Equipment
50
Chassis & Turntable
59
Tires and Wheels
59
Tire Damage
59
Tire Replacement
59
Wheel Replacement
59
Wheel Installation
59
Oscillating Axle System
60
Lockout Cylinder Bleeding
60
Chassis Tilt Indicator System
60
Oscillating Axle Lockout Test
64
Drive Orientation System
64
Drive System
65
Wheel Drive Assembly
66
Removal
66
Installation
66
Torque Hub
67
Roll and Leak Testing
67
Tightening and Torquing Bolts
67
Main Disassembly for "B" Drives
68
Hub-Spindle Disassembly
68
Cover Disassembly
74
Carrier Disassembly
74
Assemble Carrier
74
Cover Sub-Assembly
76
Hub-Spindle Sub-Assembly
77
Main Assembly
79
Tool List
84
Re-Align Torque Hub Input Coupling
85
Equipment Required
85
Procedure
85
Drive Motor
85
Description
85
Shaft Seal Replacement
86
Loop Flushing Valve
86
Troubleshooting
87
Disassembly
88
Inspection
92
Assembly
94
Initial Start-Up Procedures
98
Drive Brake
99
Disassembly
99
Inspection
99
Assembly
99
Swing Bearing
102
Removal
102
Installation
102
Turntable Bearing Mounting Bolt Condition Check
104
Wear Tolerance
104
Swing Motor
108
Removal
110
Preparation before Disassembly
112
Disassembly and Inspection
112
Assembly
119
One Piece Stator Construction
125
Two Piece Stator Construction
126
Final Checks
127
Installation
127
Generator
127
Maintenance Schedule
127
Overload Protection
128
Inspecting Brushes, Replacing Brushes and Cleaning Slip Rings
128
Generator Disassembly and Assembly
130
Lead Connection List for Generator
137
Deutz Engine
138
Kubota Engine
142
Deutz Engine - D2.9L4
144
Check Oil Level
144
Replacing Engine Oil
144
Replacing the Oil Filter
144
Replacing the Fuel Filters
145
Deutz Engine - D2011
146
Check Oil Level
146
Replacing Engine Oil
147
Replacing the Oil Filter
147
Replacing the Fuel Filter
148
Other manuals for JLG 450A
Operator's And Safety Manual
70 pages
Operation And Safety Manual
155 pages
5
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JLG 450A Specifications
General
Platform Height
45 ft
Horizontal Outreach
25 ft
Platform Capacity
500 lbs
Power Source
Diesel
Drive Speed
3 mph
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