SECTION 2 - GENERAL
3121290
– JLG Lift –
2-5
2.5
PINS AND COMPOSITE BEARING REPAIR
GUIDELINES
Filament wound bearings.
1.
Pinned joints should be disassembled and inspected if
the following occurs:
a.
Excessive sloppiness in joints.
b.
Noise originating from joint during operation.
2.
Filament wound bearings should be replaced if any of
the following is observed:
a.
Frayed or separated fibers on the liner surface.
b.
Cracked or damaged liner backing.
c.
Bearings that have moved or spun in their housing.
d.
Debris embedded in liner surface.
3.
Pins should be replaced if any of the following is
observed (pin should be properly cleaned prior to
inspection):
a.
Detectable wear in bearing area.
b.
Flaking, pealing, scoring, or scratches on pin surface.
c.
Rusting of pin in bearing area.
4.
Re-assembly of pinned joints using filament wound
bearings.
a.
Housing should be blown out to remove all dirt and
debris...bearings and bearing housings must be free
of all contamination.
b.
Bearing / pins should be cleaned with a solvent to
remove all grease and oil...filament wound bearing
are a dry joint and should not be lubricated unless
otherwise instructed (i.e. sheave pins).
c.
Inspect pins for burrs, nicks, and scratches which
can damage bearing during installation and opera-
tion.
2.6
WELDING ON JLG EQUIPMENT
NOTE:
This instruction applies to repairs or modifications to
machine and to welding performed from machine on an
external structure or component,
Do the Following When Welding on JLG Equipment
• Disconnect the battery.
• Disconnect the moment pin connection (where fitted)
• Ground only to structure being welded.
Do NOT Do the Following When Welding on JLG
Equipment
• Ground on frame and weld on any other area than chassis.
• Ground on turntable and weld on any other area than turn-
table.
• Ground on platform/support and weld on any other area
than platform/support.
• Ground on a specific boom section and weld on any other
area than that specific boom section.
• Allow pins, wear pads, wire ropes, bearings, gearing, seals,
valves, electrical wiring, or hoses to be between grounding
position and welded area.
FAILURE TO COMPLY WITH ABOVE REQUIREMENTS MAY RESULT IN COMPO-
NENT DAMAGE (I.E. ELECTRONIC MODULES, SWING BEARING, COLLECTOR
RING, BOOM WIRE ROPES ETC.)
Summary of Contents for 450A II Series
Page 46: ...SECTION 3 CHASSIS TURNTABLE 3 6 JLG Lift 3121290 Figure 3 4 Drive Hub 4WD Front Only ...
Page 79: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 39 Figure 3 32 Swing Bearing Drive ...
Page 101: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 61 Figure 3 42 Auxiliary Pump ...
Page 113: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 73 Figure 3 53 EMR2 Fault Codes Sheet 1 of 5 ...
Page 114: ...SECTION 3 CHASSIS TURNTABLE 3 74 JLG Lift 3121290 Figure 3 54 EMR2 Fault Codes Sheet 2 of 5 ...
Page 115: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 75 Figure 3 55 EMR2 Fault Codes Sheet 3 of 5 ...
Page 116: ...SECTION 3 CHASSIS TURNTABLE 3 76 JLG Lift 3121290 Figure 3 56 EMR2 Fault Codes Sheet 4 of 5 ...
Page 117: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 77 Figure 3 57 EMR2 Fault Codes Sheet 5 of 5 ...
Page 159: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 119 ...
Page 161: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 121 ...
Page 163: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 123 ...
Page 165: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 125 ...
Page 173: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 133 Sensor Transducer Type ...
Page 177: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 137 Sensor Transducer Type ...
Page 179: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 139 ...
Page 181: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 141 ...
Page 183: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 143 ...
Page 185: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 145 ...
Page 187: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 147 ...
Page 203: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 163 ...
Page 207: ...SECTION 3 CHASSIS TURNTABLE 3121290 JLG Lift 3 167 ...
Page 217: ...SECTION 4 BOOM PLATFORM 3121290 JLG Lift 4 5 Figure 4 2 Boom Limit Switches ...
Page 310: ...SECTION 5 HYDRAULICS 5 70 JLG Lift 3121290 NOTES ...
Page 312: ...SECTION 6 JLG CONTROL SYSTEM 6 2 JLG Lift 3121290 Figure 6 2 Controller Block Diagram 0 ...
Page 370: ...SECTION 6 JLG CONTROL SYSTEM 6 60 JLG Lift 3121290 NOTES ...
Page 394: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 24 JLG Lift 3121290 NOTES ...
Page 395: ......