JLG 41AM Operator Manual - Manual (Page 88)

SECTION 7 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
7-6 – JLG Lift – 3121211
7.3 OPERATOR MAINTENANCE
Lubrication
Hydraulic Oil (HO)
Hydraulic oils must have anti-wear qualities at least to API Ser-
vice Classification GL-3, and sufficient chemical stability 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 recommends 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 contain the same
required additives or be of comparable viscosities. If use of
hydraulic oil other than Mobilfluid 424 is desired, contact JLG
Industries for proper recommendations.
NOTE: Refer to Lubrication Chart, Table 7-2 for specific lubrication
locations on machine.
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
SAE VISCOSITYGRADE
+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 7-1. - Lubrication Specifications
KEY SPECIFICATIONS
MPG - Multipurpose Grease having a minimum dripping point of 350° F. Excel-
lent water resistance and adhesive qualities, and being of extreme pres-
sure 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