JLG 41AM (3120872) Service Manual - Manual (Page 12)

SECTION 1 - SPECIFICATIONS
1-2 – JLG Lift – 3120872
Machine Height
(Platform Stowed)
20AM-AC & DC - 2.0m (78 in.)
25AM-AC & DC - 2.0m (78 in.)
30AM-AC & DC - 2.0m (78 in.)
36AM-AC & DC - 2.64m (104.5 in.) *1.9m (75.5 in.)
41AM-AC & DC - 2.64m (104.5 in.) *2.0m (77.5 in.)
* In tilt-back mode.
Maximum Platform Height
(Mast Extended)
20AM-AC & DC - 6.09m (20 ft.)
25AM-AC & DC - 7.62m (25 ft.)
30AM-AC & DC - 9.14m (30 ft.)
36AM-AC & DC - 11m (36 ft.)
41AM-AC & DC - 12.42m (41 in.)
Maximum Working Height
(Average Person)
20AM-AC & DC - 7.92m (26 ft.)
25AM-AC & DC - 9.45m (31 ft.)
30AM-AC & DC - 11m (36 ft.)
36AM-AC & DC - 12.80m (42 ft.)
41AM-AC & DC - 14.33m (47 ft.)
Machine Overall Width and Length (Base)
20AM Models - 74cm (W) x 1.19m (L) (29 in. x 47 in.)
25AM Models - 74cm (W) x 1.24m (L) (29 in. x 49 in.)
30AM Models - 74cm (W) x 1.32m (L) (29 in. x 52 in.)
36AM Models - 74cm (W) x 1.38m (L) (29 in. x 54.5 in.)
41AM Models - 74cm (W) x 1.46m (L) (29 in. x 57.5 in.)
Outrigger Footprint
20/25AM Models - 1.57m x 1.37m (62 in. x 54 in.)
30AM Models - 1.72m x 1.57m (68 in. x 62 in.)
36AM Models - 2.0m x 2.0m (79 in. x 79 in.)
41AM Models - 2.0m x 2.0m (79 in. x 79 in.)
Outrigger Machine Leveling Capability
1.4 TORQUE REQUIREMENTS
When maintenance becomes necessary or a fastener has
loosened, refer to the Torque Chart, Figure 1-3. 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.
For cold weather applications, i.e. when temperatures
remain consistently below +20°F (–7°C) JLG recom-
mends using Mobil DTE 13 hydraulic oil.
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 is
desired, contact JLG Industries for proper recommenda-
tions.
Lubrication Specifications
MODEL
MAXIMUM GRADE
(OUTRIGGERS CAN LEVEL MACHINE ON)
FRONT TO BACK SIDE TO SIDE
20AM 9.7° 9.7°
25AM 9.7° 9.7°
30AM 9° 8.4°
36AM 8° 7.1°
41AM 8° 7.1°
Table 1-1. Hydraulic Oil Operating Range
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
SAE VISCOSITY
GRADE
+0 F to +180 F
(-18 C to +83 C)
10W
+0 F to +210 F
(-18 C to +99 C)
10W-20, 10W-30
+50 F to +210 F
(+10 C to +99 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.