Hydraulic Oil - JLG 400S Operation Manual

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE

Hydraulic Oil

Table 6-8. Hydraulic Oil
Hydraulic System
Operating Temperature Range
+0° to + 180° F (-18° to +83° C)
+0° to + 210° F (-18° to +99° C)
+50° to + 210° F (+10° to +99° C)
NOTE: 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 Ind. recommends Mobil-
fluid 424 hydraulic oil, which has an SAE viscosity index of 152.
NOTE: When temperatures remain consistently below 20° F (-7° C), JLG
Industries recommends the use of Mobil DTE-13.
NOTE: Machines may be equipped with Mobil EAL224H biodegradable
and non-toxic hydraulic oil. This is Vegetable oil based and pos-
sesses the same antiwear and rust protection characteristics as
mineral oils, but will not adversely affect the ground water or the
environment when spilled or leaked in small amounts. Mobil
EAL224H has a viscosity of 34 cSt at 40° C. and viscosity index of
213. The operating temperature range of this oil is -18° C to +83° C.
6-6
S.A.E. Viscosity
Grade
10W
10W-20, 10W30
20W-20
– JLG Lift –
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 rec-
ommendations.
Table 6-9. Mobilfluid 424 Specs
SAE Grade
Gravity, API
Density, Lb/Gal. 60°F
Pour Point, Max
Flash Point, Min.
Brookfield, cP at -18°C
at 40° C
at 100° C
Viscosity Index
10W30
29.0
7.35
-46°F (-43°C)
442°F (228°C)
Viscosity
2700
55 cSt
9.3 cSt
152
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