JLG 740AJ, Service And Maintenance Manual

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SECTION 1 - SPECIFICATIONS
1-6 3121160
1.5 CYLINDER SPECIFICATIONS
1.6 MAJOR COMPONENT WEIGHTS
1.7 PRESSURE SETTINGS
Critical Stability Weights
DO NOT REPLACE ITEMS CRITICAL TO STABILITY WITH ITEMS OF DIFFERENT
WEIGHT OR SPECIFICATION (FOR EXAMPLE: BATTERIES, FILLED TIRES, COUN-
TER WEIGHT, ENGINE, AND PLATFORM) DO NOT MODIFY UNIT IN ANY WAY TO
EFFECT STABILITY.
Table 1-26. Cylinder Specifications
DESCRIPTION BORE
in. (mm.)
STROKE
in. (mm.)
ROD DIA.
in. (mm.)
Upright Level 8.00
(203.6)
42.00
(1066.8)
3.50
(88.9)
Tower Lift 8.00
(203.6)
49.4
(1254.3)
3.00
(76.2)
Main Lift 8.00
(203.2)
28.75
(730.3)
4.00
(101.6)
Telescope 3.50
(88.9)
206.5
(5245.1)
2.74
(70)
Steer 3.00
(76.2)
10.75
(273.1)
1.50
(38.1)
Master 3.50
(88.9)
18.50
(469.9)
1.50
(38.1)
Slave 3.50
(88.9)
17.50
(444.5)
1.50
(38.1)
Lift (Jib) 3.00
(76.2)
25.50
(647.7)
1.50
(38.1)
Table 1-27. Major Component Weights
MAJOR COMPONENTS LB. KG.
Platform & Control Console 250 113
Main Boom (Inc. Slave Cylinder Rotator, And Support) 3185 1445
Main Lift Cylinder 445 202
Main Telescope Cylinder 459 218
Upright 1175 535
Upright Level Cylinder 585 265
Tower Boom Complete 3450 1565
Tower Lift Cylinder 544 247
Turntable Counterweight 4805 2180
Turntable Complete (Including Engine) 11025 5001
Chassis Complete 12620 5724
Machine Complete (GVW) 33100 15020
The above components are separate assemblies. Example: “TURNTABLE COMPLETE”
does not include booms, upright, lift cylinders or platform. The weights of these compo-
nents must be added for the total weight.
Table 1-28. Pressure Settings
Main Boom Lift Down Relief 1400 PSI. (97 Bar)
Swing Relief 1400 PSI. (97 Bar)
Platform Level Relief:
Up
Down
2800 PSI. (193 Bar)
1800 PSI. (124 Bar)
Steer Relief
2WS
4WS
1800 PSI. (124.11Bar)
2600 PSI. (179 Bar)
Tower Boom Telescope 2200 PSI. (151.7 Bar)
Articulating Jib Boom
Up
Down
2500 PSI. (172 Bar)
1200 PSI. (83 Bar)
Table 1-29. Critical Stability Weights
COMPONENTS LB. KG.
Tire & Wheel
18 X 19.5 675 305
Engine Ford
600 209
Deutz
534 242
GM w/pumps
1030 468
Counterweight Turntable
4805 2180
Wheel Hubs Front & Rear
218 99
Platform 6 FT. (1.83 M)
205 93
8 FT. (2.44 M)
230 105