Oshkosh Corporation JLG 260MRT, Service Maintenance Manual

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SECTION 1 - SPECIFICATIONS
1-2 – JLG Lift – 3121801
Tires
Pumps
Steer/Drive System
Tire - Pneumatic or foam filled - 26 x 12 15 lug
NOTE: Inflate pneumatic tire to 3.1 bar (45 psi)
Toe-In - Adjust to 12.7 mm (1/2 inch) overall
Drive Motor - Rexroth
Hydraulic Filter - Inline
Full flow paper filter (Cartridge type)
Torque Requirement
All wheel lug nuts should be torqued to 142 Nm (105 ft lb)
every 150 hours.
NOTE: When maintenance becomes necessary or a fas-
tener has loosened, refer to the Torque Chart in this
section to determine proper torque value.
1.4 LUBRICATION
Hydraulic Oil
NOTE: Hydraulic oils must have anti-wear qualities at least
to API Service Classification GL-3, and sufficient
chemical stability for mobile hydraulic system ser-
vice. JLG Industries recommends Mobilfluid 424
hydraulic oil, which has an SAE viscosity of 10W-30
and a viscosity index of 152.
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 Mobilfluid 424 is desired, contact JLG Indus-
tries for proper recommendations.
1.5 LUBRICATION SPECIFICATIONS
Table 1-6. Tire Specifications
Description (Standard) (Non-Marking)
Size 26x12-15
Load Range 8 Ply
Pressure 55 psi
Table 1-7. Pump Specifications
Description Drive Pump Lift/Steer Pump
Type Piston Gear
Max Output
83.3 lpm (22 gpm) @
3000 rpm
18 lpm (4.75 gpm) @
3000 rpm
Displacement
28 cm³/rev
(1.7 in³/rev)
1.4 cm³/rev
(0.36 in.³/rev)
Table 1-8. Hydraulic Oil
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
SAE VISCOSITY GRADE
-18 to -5°C
(0 to +23°F)
10W
-18 to +100°C
(0 to +210°F)
10W-20,10W-30
+10 to +100°C
(+50 to +210°F)
20W-20
Table 1-9. Lubrication Specifications
KEY SPECIFICATIONS
MPG
Multipurpose Grease having a minimum dripping
point of 350 degrees F. Excellent 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 ser-
vice classification GL-5 or MIL-Spec MIL-L-2105.
EO
Engine (crankcase) Oil. Gas - API SF/SG class,
MIL-L-2104. Diesel - API CC/CD class, MIL-L-
2104B/MIL-L-2104C.
HO
Hydraulic Oil. API service classification GL-3, e.g.
Mobil 424.