JLG 41AM (3120752) Service Manual - Manual (Page 14)

SECTION 1 - SPECIFICATIONS
1-2 – JLG Lift – 3120752
Machine Height
(Platform Stowed)
20AM-AC & DC - 78 in. (2.0m)
25AM-AC & DC - 78 in. (2.0m)
30AM-AC & DC - 78 in. (2.0m)
36AM-AC & DC - 104.5 in. (2.64m) *75.5 in. (1.9m)
41AM-AC & DC - 104.5 in. (2.64m) *77.5 in. (2.0m)
* In tilt-back mode.
Maximum Platform Height
(Mast Extended)
20AM-AC & DC - 20 ft. (6.09m)
25AM-AC & DC - 25 ft. (7.62m)
30AM-AC & DC - 30 ft. (9.14m)
36AM-AC & DC - 36 ft. (11m)
41AM-AC & DC - 41 in. (12.42m)
Maximum Working Height
(Average Person)
20AM-AC & DC - 26 ft. (7.92m)
25AM-AC & DC - 31 ft. (9.45m)
30AM-AC & DC - 36 ft. (11m)
36AM-AC & DC - 42 ft. (12.80m)
41AM-AC & DC - 47 ft. (14.33m)
Machine Overall Width and Length (Base)
20AM Models - 29 in.(W) x 47 in.(L) (74cm x 1.19m)
25AM Models - 29 in.(W) x 49 in.(L) (74cm x 1.24m)
30AM Models - 29 in.(W) x 52 in.(L) (74cm x 1.32m)
36AM Models - 29 in.(W) x 54.5 in.(L) (74cm x 1.38m)
41AM Models - 29 in.(W) x 57.5 in.(L) (74cm x 1.46m)
Outrigger Footprint
20/25AM Models - 62 in. x 54 in. (1.57m x 1.37m)
30AM Models - 68 in. x 62 in. (1.72m x 1.57m)
36AM Models - 79 in. x 79 in. (2.0m x 2.0m)
41AM Models - 79 in. x 79 in. (2.0m x 2.0m)
Outrigger Machine Leveling Capability
1.4 TORQUE REQUIREMENTS
When maintenance becomes necessary or a fastener has
loosened, refer to the Torque Chart, Figure 1-2. on page 1-
5 to determine proper torque value.
1.5 LUBRICATION
Hydraulic Oil (HO)
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.
MODEL
MAXIMUM GRADE
(OUTRIGGERS CAN LEVEL MACHINE ON)
FRONT TO BACK SIDE TO SIDE
20AM 10° 11.5°
25AM 10° 11.5°
30AM 9° 8.5°
36AM 8.3° 7.2°
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.
CL - Chain Lube. Use a good quality chain lubricant