SECTION 3 - CHASSIS & TURNTABLE
3-108
– JLG Lift –
3121160
The electronic governor also acts as an idle air control
(IAC) valve. Changes in engine load are detected by the
Engine Module by comparing manifold absolute pressure
(MAP) with throttle position. When the Engine Module
detects a change in engine load, it can adjust idle speed
by changing the PWM signal to the governor.
OPEN LOOP AND CLOSED LOOP OPERATION
The Engine Module will operate in the following two
modes:
• Open loop
• Closed loop
When the engine is first started, the system is in "open
loop" operation. In open loop, the Engine Module ignores
the signal from the heated oxygen sensor (HO2S). it uses
a pre-programmed routine to calculate the air/fuel ratio
based on inputs from the TP, ECT, and MAP sensors.
The system remains in open loop until the following condi-
tions are met:
• The HO2S has a varying voltage output showing that it
is hot enough to operate properly (this depends on
temperature).
• The ECT has reached 160°F (71°C).
• Seven minutes has elapsed since starting the engine.
After these conditions are met, the engine is said to be
operating in "closed loop." In closed loop, The Engine
Module continuously adjusts the air/fuel ratio by respond-
ing to signals from the HO2S (except at wide-open throt-
tle). When the HO2S reports a lean condition (low sensor
signal voltage), the Engine Module responds by increas-
ing the "on" time of the fuel injectors, thus enriching the
mixture. When the HO2S reports a rich condition (high
sensor signal Voltages the Engine Module responds by
reducing the "on" time of the fuel injectors, thus leaning
out the mixture.
CAMSHAFT POSITION (CMP) SENSOR
The CMP sensor uses a variable reactor sensor to detect
camshaft position. The CMP signal is created as piston #1
is a predetermined number of degrees after top dead cen-
ter on the power stroke.
CRANKSHAFT POSITION (CKP) SENSOR
The crankshaft position (CKP) sensor provides a signal
used by the engine control module (Engine Module) to
calculate the ignition sequence. The sensor initiates the
reference pulses which the Engine Module uses to calcu-
late RPM and crank-shaft position.
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Страница 1: ...Service and Maintenance Manual Models 740A 740AJ P N 3121160 January 8 2013 ...
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Страница 20: ...xviii JLG Lift 3121160 LIST OF TABLES TABLE NO TITLE PAGE NO This page left blank intentionally ...
Страница 35: ...SECTION 1 SPECIFICATIONS 3121160 JLG Lift 1 15 Figure 1 4 Torque Chart SAE Fasteners Sheet 1 of 3 ...
Страница 36: ...SECTION 1 SPECIFICATIONS 1 16 JLG Lift 3121160 Figure 1 5 Torque Chart SAE Fasteners Sheet 2 of 3 ...
Страница 37: ...SECTION 1 SPECIFICATIONS 3121160 JLG Lift 1 17 Figure 1 6 Torque Chart SAE Fasteners Sheet 3 of 3 ...
Страница 38: ...SECTION 1 SPECIFICATIONS 1 18 JLG Lift 3121160 Figure 1 7 Torque Chart METRIC Fasteners Sheet 1 of 3 ...
Страница 39: ...SECTION 1 SPECIFICATIONS 3121160 JLG Lift 1 19 Figure 1 8 Torque Chart METRIC Fasteners Sheet 2 of 3 ...
Страница 40: ...SECTION 1 SPECIFICATIONS 1 20 JLG Lift 3121160 Figure 1 9 Torque Chart METRIC Fasteners Sheet 3 of 3 ...
Страница 50: ...SECTION 2 GENERAL 2 10 JLG Lift 3121160 Figure 2 2 Engine Operating Temperature Specifications Ford 4150548 E ...
Страница 51: ...SECTION 2 GENERAL 3121160 JLG Lift 2 11 Figure 2 3 Engine Operating Temperature Specifications GM 4150548 E ...
Страница 52: ...SECTION 2 GENERAL 2 12 JLG Lift 3121160 NOTES ...
Страница 109: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 57 Figure 3 39 Swing Hub ...
Страница 111: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 59 Figure 3 40 Swing Brake Assembly Ausco Prior to S N 0300068040 ...
Страница 123: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 71 Figure 3 43 Swing Drive Hub Fairfield S N 0300068040 to Present ...
Страница 135: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 83 Figure 3 48 Rotary Coupling Port Location ...
Страница 138: ...SECTION 3 CHASSIS TURNTABLE 3 86 JLG Lift 3121160 A B D D B C Figure 3 51 Auxiliary Pump Sheet 1 of 2 ...
Страница 153: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 101 Figure 3 54 EFI Component Location ...
Страница 156: ...SECTION 3 CHASSIS TURNTABLE 3 104 JLG Lift 3121160 Figure 3 55 ECM EPM Identification ECM EPM ...
Страница 167: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 115 Figure 3 59 Deutz EMR 2 Troubleshooting Flow Chart ...
Страница 168: ...SECTION 3 CHASSIS TURNTABLE 3 116 JLG Lift 3121160 Figure 3 60 Deutz EMR 2 Vehicle Side Connection Diagram ...
Страница 169: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 117 Figure 3 61 Deutz EMR 2 Engine Side Connection Diagram Sheet 1 of 2 ...
Страница 170: ...SECTION 3 CHASSIS TURNTABLE 3 118 JLG Lift 3121160 Figure 3 62 Deutz EMR 2 Engine Side Connection Diagram Sheet 2 of 2 ...
Страница 171: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 119 Figure 3 63 EMR 2 Engine Plug Pin Identification ...
Страница 172: ...SECTION 3 CHASSIS TURNTABLE 3 120 JLG Lift 3121160 Figure 3 64 EMR 2 Vehicle Plug Pin Identification ...
Страница 173: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 121 Figure 3 65 EMR2 Fault Codes Sheet 1 of 5 ...
Страница 174: ...SECTION 3 CHASSIS TURNTABLE 3 122 JLG Lift 3121160 Figure 3 66 EMR2 Fault Codes Sheet 2 of 5 ...
Страница 175: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 123 Figure 3 67 EMR2 Fault Codes Sheet 3 of 5 ...
Страница 176: ...SECTION 3 CHASSIS TURNTABLE 3 124 JLG Lift 3121160 Figure 3 68 EMR2 Fault Codes Sheet 4 of 5 ...
Страница 177: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 125 Figure 3 69 EMR2 Fault Codes Sheet 5 of 5 ...
Страница 236: ...SECTION 4 BOOM PLATFORM 4 20 JLG Lift 3121160 Figure 4 7 Boom Valve and Limit Switches Location 0271989 A ...
Страница 237: ...SECTION 4 BOOM PLATFORM 3121160 JLG Lift 4 21 Figure 4 8 Transportation Switch Installation CE Only 0258384 A ...
Страница 238: ...SECTION 4 BOOM PLATFORM 4 22 JLG Lift 3121160 Figure 4 9 Tower Power Track Installation Sheet 1 of 2 ...
Страница 239: ...SECTION 4 BOOM PLATFORM 3121160 JLG Lift 4 23 Figure 4 10 Tower Power Track Installation Sheet 2 of 2 ...
Страница 244: ...SECTION 4 BOOM PLATFORM 4 28 JLG Lift 3121160 Figure 4 14 Rotator Assembly HELAC ...
Страница 276: ...SECTION 4 BOOM PLATFORM 4 60 JLG Lift 3121160 THIS SENSOR ON NON ADE MACHINES ONLY Figure 4 21 UMS Sensor Location ...
Страница 277: ...SECTION 4 BOOM PLATFORM 3121160 JLG Lift 4 61 ADE MACHINES NON ADE MACHINES Figure 4 22 UMS Module Location ...
Страница 286: ...SECTION 4 BOOM PLATFORM 4 70 JLG Lift 3121160 NOTES ...
Страница 307: ...SECTION 5 HYDRAULICS 3121160 JLG Lift 5 21 Figure 5 17 Variable Displacement Pump Rexroth ...
Страница 316: ...SECTION 5 HYDRAULICS 5 30 JLG Lift 3121160 NOTES ...
Страница 319: ...SECTION 6 JLG CONTROL SYSTEM 3121160 JLG Lift 6 3 Figure 6 2 ADE Block Diagram ...
Страница 325: ...SECTION 6 JLG CONTROL SYSTEM 3121160 JLG Lift 6 9 Figure 6 8 Analyzer Flow Chart Version 5 X Software Sheet 2 of 4 ...
Страница 328: ...SECTION 6 JLG CONTROL SYSTEM 6 12 JLG Lift 3121160 Figure 6 11 Control Module Location ...
Страница 374: ...SECTION 6 JLG CONTROL SYSTEM 6 58 JLG Lift 3121160 NOTES ...
Страница 381: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 3121160 JLG Lift 7 7 Figure 7 11 Connector Installation ...
Страница 400: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 26 JLG Lift 3121160 Figure 7 34 Hydraulic Schematic Sheet 1 of 6 ...
Страница 402: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 28 JLG Lift 3121160 Figure 7 36 Hydraulic Schematic Sheet 3 of 6 ...
Страница 404: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 30 JLG Lift 3121160 Figure 7 38 Hydraulic Schematic Sheet 5 of 6 ...
Страница 406: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 32 JLG Lift 3121160 NOTES ...
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