SECTION 3 - CHASSIS & TURNTABLE
3-32
– JLG Lift –
3121259
3.9
CHASSIS TILT INDICATOR SYSTEM
The Chassis Tilt Indicator System measures the turntable angle
with regard to level ground. The tilt sensor has two settings;
5.0°/3.0° (depending on market) and 6.0° degrees. The 5.0°/
3.0° angle is set by choosing the desired market selection for
the machine based on machine setup using the JLG Analyzer.
The 5.0°/3.0° angle is used to warn the operator of an excessive
slope by means of the chassis tilt light on the platform display
panel. The tilted condition exists when the chassis tilt reading
is greater than or equal to the setting selected in the analyzer
for a period of 4 seconds or longer. The tilted condition will be
cleared if the tilt reading is less than the selected setting for a
period of 1 second. When used in conjunction with the
Beyond Transport - Drive Speed Cutback System, the tilt sen-
sor will cause an alarm to sound and automatically put all
functions in the creep speed mode. The operator is responsi-
ble for preventing the machine from reaching an unstable
position.
The 6° angle is used only for the purpose of automatically
slowing drive speed when this angle is reached and the boom
is in Transport position. When the boom is in Transport Posi-
tion and the chassis is at or above 6° for a period of 1 second or
longer, the drive system will automatically switch into Max
Torque mode. This condition will be cleared if the chassis tilt
reading is less than 5 degrees for a period of 1 second or lon-
ger.
The JLG Control System responds to indicated angle readings
0.5 degree smaller than the required angles to account for cal-
ibration and sensor variation.
The machine’s chassis tilt is measured by a pair of fluid-based
sensors imbedded within the Ground Module. These sensors
measure chassis tilt from side-to-side and from front-to-back.
The ground module uses one tilt sensor to measure machine
angle and uses the second sensor to compare against the first
one to ensure the angle reading is reliable.
3.10 SWING MOTOR
IF THE HYDRAULIC SYSTEM FLUID BECOMES OVERHEATED [IN EXCESS OF
200°F (93.3°C)], SEALS IN THE SYSTEM CAN SHRINK, HARDEN OR CRACK,
THUS LOSING THEIR SEALING ABILITY.
Figure 3-30. Swing Motor - Cutaway
Содержание 340AJ
Страница 1: ...Service and Maintenance Manual Model 340AJ P N 3121259 June 27 2017...
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Страница 10: ...vi JLG Lift 3121259 TABLE OF CONTENTS SECTION NO TITLE PAGE NO Thispageleftblankintentionally...
Страница 15: ...3121259 JLG Lift xi LIST OF FIGURES FIGURE NO TITLE PAGE NO Thispageleftblankintentionally...
Страница 18: ...xiv JLG Lift 3121259 LIST OF TABLES TABLE NO TITLE PAGE NO Thispageleftblankintentionally...
Страница 42: ...SECTION 2 GENERAL 2 12 JLG Lift 3121259 NOTES...
Страница 69: ...SECTION 3 CHASSIS TURNTABLE 3121259 JLG Lift 3 27 Figure 3 24 Bearing Pressing Tool...
Страница 71: ...SECTION 3 CHASSIS TURNTABLE 3121259 JLG Lift 3 29 Figure 3 27 Bearing Nut Wrench...
Страница 134: ...SECTION 3 CHASSIS TURNTABLE 3 92 JLG Lift 3121259 NOTES...
Страница 157: ...SECTION 4 BOOM PLATFORM 3121259 JLG Lift 4 23 Figure 4 8 Rotator Counterbalance Valve...
Страница 218: ...SECTION 5 HYDRAULICS 5 58 JLG Lift 3121259 Figure 5 32 Fasteners and Plugs Sheet 1 of 2...
Страница 219: ...SECTION 5 HYDRAULICS 3121259 JLG Lift 5 59 Figure 5 33 Fasteners and Plugs Sheet 2 of 2...
Страница 236: ...SECTION 5 HYDRAULICS 5 76 JLG Lift 3121259 Figure 5 39 Gear Pump Cutaway...
Страница 246: ...SECTION 5 HYDRAULICS 5 86 JLG Lift 3121259 Figure 5 40 Oil Sampling Port...
Страница 255: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 9 PLATFORM MODULE GROUND MODULE Figure 6 2 Control Module Location...
Страница 256: ...SECTION 6 JLG CONTROL SYSTEM 6 10 JLG Lift 3121259 Figure 6 3 Ground Module Sheet 1 of 4...
Страница 267: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 21 Figure 6 10 Analyzer Diagnostics Menu Sheet 1 of 4...
Страница 268: ...SECTION 6 JLG CONTROL SYSTEM 6 22 JLG Lift 3121259 Figure 6 11 Analyzer Diagnostics Menu Sheet 2 of 4...
Страница 269: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 23 Figure 6 12 Analyzer Diagnostics Menu Sheet 3 of 4...
Страница 270: ...SECTION 6 JLG CONTROL SYSTEM 6 24 JLG Lift 3121259 Figure 6 13 Analyzer Diagnostics Menu Sheet 4 of 4...
Страница 271: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 25 Figure 6 14 Analyzer Personalities Menu Sheet 1 of 2...
Страница 272: ...SECTION 6 JLG CONTROL SYSTEM 6 26 JLG Lift 3121259 Figure 6 15 Analyzer Personalities Menu Sheet 2 of 2...
Страница 273: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 27 Figure 6 16 Analyzer Machine Setup Menu...
Страница 274: ...SECTION 6 JLG CONTROL SYSTEM 6 28 JLG Lift 3121259 Figure 6 17 Analyzer Calibrations Menu...
Страница 289: ...SECTION 6 JLG CONTROL SYSTEM 3121259 JLG Lift 6 43 14 Press ENTER If calibration is successful the screen will read...
Страница 336: ...SECTION 6 JLG CONTROL SYSTEM 6 90 JLG Lift 3121259 NOTES...
Страница 346: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 10 JLG Lift 3121259 Figure 7 13 Connector Installation...
Страница 365: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 3121259 JLG Lift 7 29 This page left blank intentionally...
Страница 368: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 32 JLG Lift 3121259 NOTES...
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