Service Manual Instruction Manual

SECTION 1 - SPECIFICATIONS
1-2 – JLG Lift – 3120782
Maximum Working Height (Average person)
20EL-AC & DC - 26 ft. (7.92 m)
25EL-AC & DC - 31 ft. (9.45 m)
30EL-AC & DC - 36 ft. (11 m)
36EL-AC & DC - 42 ft. (12.80 m)
41EL-AC & DC - 47 ft. (14.33 m)
Platform Cycle Performance
Lift Up cycle time - from stowed to maximum platform
height with maximum rated load.
Lift Down cycle time - from maximum platform height to
stowed position with maximum rated load.
Outrigger Footprint
20/25EL Models - 62 in. x 54 in. (1.57 m x 1.37 m)
30EL Models - 68 in. x 62 in. (1.72 m x 1.57 m)
36EL Models - 79 in. x 79 in. (2.0 m x 2.0 m)
41EL Models - 79 in. x 79 in. (2.0 m x 2.0 m)
Machine Overall Width and Length (Base)
20EL Models - 29 in.(W) x 47 in.(L) (74 cm x 1.19 m)
25EL Models - 29 in.(W) x 49 in.(L) (74 cm x 1.24 m)
30EL Models - 29 in.(W) x 52 in.(L) (74 cm x 1.32 m)
36EL Models - 29 in.(W) x 54.5 in.(L) (74 cm x 1.38 m)
41EL Models - 29 in.(W) x 57.5 in.(L) (74 cm x 1.46 m)
1.4 TORQUE REQUIREMENTS
When maintenance becomes necessary or a fastener has
loosened, refer to the Torque Chart, Figure 1-2. to deter-
mine proper torque value.
1.5 LUBRICATION
Hydraulic Oil
Hydraulic oils must have anti-wear qualities at least to API
Service Classification GL-3, and sufficient chemical stabil-
ity for mobile hydraulic system service. JLG Industries,
recommends Mobilfluid 424 hydraulic oil, which has an
SAE viscosity of 10W-30 and a viscosity index of 152, or
as an alternate, Kendall Hyken 052 hydraulic oil, which
has an SAE viscosity of 10W-20 and a viscosity index of
152. Mobilfluid 424 and Kendall Hyken 052 are fully com-
patible, and can be mixed as necessary.
When temperatures remain consistently below -20° F (-7°
C) an amount of No. 2 diesel fuel, not to exceed 20% of
system capacity, may be added to the hydraulic oil reser-
voir. This diesel fuel will "thin" the hydraulic oil for easier
cold weather operation, and will almost completely dissi-
pate from the hydraulic system over a several month
period of time. When cold weather is past, it may be nec-
essary to drain and refill the hydraulic system to rid the
system of any remaining diesel fuel.
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 Mobilfluid 424 or
Kendall Hyken 052 is desired, contact JLG Industries for
proper recommendations.
Lubrication Specifications
Maximum Platform
Speeds: (in seconds)
20EL 25EL 30EL 36EL 41EL
Lift Up: 50 62 72 128 120
Lift Down: 32-42 32-42 32-42 47-57 45-55
Table 1-1. Hydraulic Oil Operating Range
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
SAE VISCOSITY
GRADE
0° F t o +23 ° F
(-18° C to -5° C)
10W
0° F to +210° F
(-1 8° C to + 99° C)
10W-20, 10W-30
50° F to 210° F
(+10° C to +210° C)
20W-20
Table 1-2. Lubrication Specifications
KEY SPECIFICATIONS
MPG - Multipurpose Grease having a minimum dripping point
of 350° F. Excellent water resistance and adhesive qual-
ities, and being of extreme pressure type. (Timken OK
40 pounds minimum.)
EPGL - Extreme Pressure Gear Lube (oil) meeting API service
classification GL-5 or MIL-Spec MIL-L-2105.
HO - Hydraulic Oil. ISO-Vg grade 32, 46.