SECTION 1 - SPECIFICATIONS
1-2
– JLG Lift –
3121160
1.3 TIRES
1.4 DRIVE SYSTEM
1.5 SWING SYSTEM
1.6 HYDRAULIC DRIVE PUMP
1.7 VARIABLE DISPLACEMENT PUMP
1.8 HYDRAULIC LOAD SENSE PUMP
Table 1-5. GM 3.0L
Fuel
Gasoline or Gasoline/LP Gas
No. of Cylinders
4
BHP
Gasoline
LP
83 hp @ 3000 rpm
75 hp @ 3000 rpm
Bore
4.0 in. (101.6 mm)
Stroke
3.6 in. (91.44 mm)
Displacement
181 cu.in. (3.0 L, 2966 cc)
Oil Capacity w/filter
4.5 qts. (4.25 L)
Minimum Oil Pressure
at idle
Hot
6 psi (0.4 Bar) @ 1000 rpm
18 psi (1.2 Bar) @ 2000 rpm
Compression Ratio
9.2:1
Firing Order
1-3-4-2
Max. RPM
2800
Table 1-6. Tire Specifications
Size
Type
Ply
Rating
Load
Range
Pressure
IN 445/55D 19.5
pneumatic
16
H
85 PSI
(6.0 Bar)
IN 445/55D 19.5
foam-filled
16
H
N/A
Table 1-7. Drive System
Drive Motor
Displacement
2.74 cu. in. max. 1.000 cu. in. min.
(46 cm
3
max. 16.4 cm
3
min.)
Drive Hub Ratio
9.3:1
Drive Brake
Automatic spring applied, hydraulically
released disc brakes
Table 1-8. Swing System Specifications
Swing Motor Displacement
4.9 cu. in. (80 cm
3
)
Swing Brake
Automatic spring applied hydraulically
released disc brakes
Swing Hub Ratio
50:1
Table 1-9. Hydraulic Drive Pump Specifications
Pump Output
35.5 GPM (134 lpm) @ 2800 RPM
Pump Displacement
2.8 cu. in. (46 cm
3
)
Charge Pump Displacement
0.85 cu. in. (14 cm
3
)
Charge Pump Output
9.5 GPM (37 lpm) @ 2800 RPM
Charge Pump Pressure
400 PSI. (27.5 Bar)@ 2800 RPM
Clockwise Rotation
Table 1-10. Variable Displacement Pump Specifications
Type
Variable, swashplate design
Nominal Pressure
3600 psi (248 bar)
Peak Pressure
4600 psi (317 bar)
Pump Circuit
Open
Displacement Vgmax
2.75 in
3
(45 cm
3
)
Pressure and Flow Control
DFR1
Rotation
Clockwise
NBR seals
Nitrile rubber to DIN ISO 1629
Shaft
SAE 1.00 in. (2.54 cm) splined
Table 1-11. Hydraulic Load Sense Pump Specifications
Pump Displacement
2.1cu. in. (34.4 cm
3
) Max.
Pump Output
15.5 GPM (59 lpm) @ 1800 RPM
Stand By Pressure
400 PSI.(27.5 Bar) @ 1800 RPM
High Pressure Relief
High Pressure Relief - 2700 PSI.(186
Bar)
Rotation
Clockwise
Summary of Contents for 740A
Page 1: ...Service and Maintenance Manual Models 740A 740AJ P N 3121160 January 8 2013 ...
Page 2: ......
Page 52: ...SECTION 2 GENERAL 2 12 JLG Lift 3121160 NOTES ...
Page 109: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 57 Figure 3 39 Swing Hub ...
Page 135: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 83 Figure 3 48 Rotary Coupling Port Location ...
Page 153: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 101 Figure 3 54 EFI Component Location ...
Page 156: ...SECTION 3 CHASSIS TURNTABLE 3 104 JLG Lift 3121160 Figure 3 55 ECM EPM Identification ECM EPM ...
Page 173: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 121 Figure 3 65 EMR2 Fault Codes Sheet 1 of 5 ...
Page 174: ...SECTION 3 CHASSIS TURNTABLE 3 122 JLG Lift 3121160 Figure 3 66 EMR2 Fault Codes Sheet 2 of 5 ...
Page 175: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 123 Figure 3 67 EMR2 Fault Codes Sheet 3 of 5 ...
Page 176: ...SECTION 3 CHASSIS TURNTABLE 3 124 JLG Lift 3121160 Figure 3 68 EMR2 Fault Codes Sheet 4 of 5 ...
Page 177: ...SECTION 3 CHASSIS TURNTABLE 3121160 JLG Lift 3 125 Figure 3 69 EMR2 Fault Codes Sheet 5 of 5 ...
Page 244: ...SECTION 4 BOOM PLATFORM 4 28 JLG Lift 3121160 Figure 4 14 Rotator Assembly HELAC ...
Page 286: ...SECTION 4 BOOM PLATFORM 4 70 JLG Lift 3121160 NOTES ...
Page 307: ...SECTION 5 HYDRAULICS 3121160 JLG Lift 5 21 Figure 5 17 Variable Displacement Pump Rexroth ...
Page 316: ...SECTION 5 HYDRAULICS 5 30 JLG Lift 3121160 NOTES ...
Page 319: ...SECTION 6 JLG CONTROL SYSTEM 3121160 JLG Lift 6 3 Figure 6 2 ADE Block Diagram ...
Page 328: ...SECTION 6 JLG CONTROL SYSTEM 6 12 JLG Lift 3121160 Figure 6 11 Control Module Location ...
Page 374: ...SECTION 6 JLG CONTROL SYSTEM 6 58 JLG Lift 3121160 NOTES ...
Page 406: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 32 JLG Lift 3121160 NOTES ...
Page 407: ......