JLG 340AJ, Service And Maintenance Manual

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SECTION 1 - SPECIFICATIONS
1-2 – JLG Lift – 3121259
Hydraulic Oil
NOTE: Hydraulic oils require anti-wear qualities at least API Ser-
vice Classification GL-3, and sufficient chemical stability
for mobile hydraulic system service.
NOTE: Machines may be equipped with Mobil EAL biodegrad-
able and non-toxic hydraulic oil. This is a fully synthetic
hydraulic oil that possesses the same anti-wear and rust
protection characteristics as mineral oils, but will not
adversely affect the ground water or the environment
when spilled or leaked in small amounts.
NOTE: Aside from JLG recommendations, it is not advisable to
mix oils of different brands or types, as they may not con-
tain the same required additives or be of comparable vis-
cosities. If use of hydraulic oil other than Mobil 424 is
desired, contact JLG Industries for proper recommenda-
tions.
Major Component Weights
DO NOT REPLACE ITEMS CRITICAL TO STABILITY WITH ITEMS OF DIFFERENT
WEIGHT OR SPECIFICATION (FOR EXAMPLE: BATTERIES, FILLED TIRES, PLAT-
FORM) DO NOT MODIFY UNIT IN ANY WAY TO AFFECT STABILITY.
Table 1-6. GM 0.97L
Type Liquid Cooled
Number of Cylinders 4
Bore 2.58 in. (65.5 mm)
Stroke 2.84 in. (72.0 mm)
Total Displacement 59 cu. in. (967 cm3)
Compression Ratio 8.8:1
Firing Order 1-3-4-2
Output 28.6 hp (21.3 kW)
Low Idle RPM 1200 ± 50
High Idle RPM 3000± 50
Table 1-7. Hydraulic Oil
Hydraulic System
Operating
Temperature Range
S.A.E. Viscosity
Grade
+0° to + 180° F
(-18° to +83° C)
10W
+0° to + 210° F
(-18° to +99° C)
10W-20, 10W30
+50° to + 210° F
(+10° to +99° C
20W-20
Table 1-8. Critical Stability Weights
Components LBS. KG.
Counterweight 1875 ± 75 850.5 ± 34
Tire and Wheel - 20x9 Pneumatic 130 59
Tire and Wheel - 20x9 Foam-Filled 220 99.8
Tire and Wheel - 18x7 230 104.3
Platform & Console - 30x60 242.5 110
Platform & Console - 30x48 216 98
Battery 66 30