JLG 1850SJ Operator Manual - Manual (Page 137)

SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3121618 – JLG Lift – 7-5
Hydraulic Oil
NOTE: Hydraulic oils require anti-wear qualities at least API Service
Classification GL-3, and sufficient chemical stability for mobile
hydraulic system service.
NOTE: 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 Mobil 424 is desired, contact JLG Indus-
tries for proper recommendations.
OIL SAMPLING
This machine is equipped with an oil sampling valve to allow for
verification of hydraulic oil condition. Refer to the Service Manual
for Oil Sampling procedures. Table 7-7. 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 7-8. Mobilfluid 424 Specs
SAE Grade 10W30
Gravity, API 29.0
Density, Lb/Gal. 60°F 7.35
Pour Point, Max -46°F (-43°C)
Flash Point, Min. 442°F (228°C)
Viscosity
Brookfield, cP at -18°C 2700
at 40° C 55 cSt
at 100° C 9.3 cSt
Viscosity Index 152