JLG DVSP Series Service Manual - Manual (Page 15)

SECTION 1 - MACHINE SPECIFICATIONS
3121136 – JLG Lift – 1-3
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
1.6 HYDRAULIC PRESSURE SETTINGS AND
ADJUSTMENT
Adjust system pressure so that platform will raise with maxi-
mum rated capacity in platform.
The following pressure setting are factory recommended
(initial) settings;
Turning adjustment screw clockwise increases system
pressure, turning screw counterclockwise decreases sys-
tem pressure. (See Figure 1-1., Hydraulic Pressure Adjust-
ment Screw. (Machine Rear Covers Removed))
Perform pressure adjustment with oil at normal operating
temperature. If pressure is set when oil is cold, platform may
not raise rated load after soil has warmed.
Table 1-2. 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 1-3. 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.
MODEL PRESSURE SETTING
15DVL/15DVSP 2600 PSI
20DVL 1800 PSI
20DVSP 2800 PSI
1. Remove Adjust Screw Cap 2. Pressure Adjustment Screw
Note: Machine rear covers must be removed to access pump motor.
Figure 1-1. Hydraulic Pressure Adjustment Screw.
(Machine Rear Covers Removed)
1
2