JLG 660SJ Operator Manual - Manual (Page 90)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
6-4 – JLG Lift – 3121297
Tires
Hydraulic Oil
NOTE: 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 index of 152.
Table 6-5. GM 3.0L
Fuel Gasoline or Gasoline/LP Gas
No. of Cylinders 4
BHP
Gasoline
LP
83 hp @ 3000 rpm
75 hp @ 3000 rpm
Bore 4.0 in. (101.6 mm)
Stroke 3.6 in. (91.44 mm)
Displacement 181 cu.in. (3.0 L, 2966 cc)
Oil Capacity w/filter 4.5 qts. (4.25 L)
Minimum Oil Pressure
at idle
Hot
6 psi (0.4 Bar) @ 1000 rpm
18 psi (1.2 Bar) @ 2000 rpm
Compression Ratio 9.2:1
Firing Order 1-3-4-2
Max. RPM 2800
Fuel Consumption N/A
Table 6-6. Tire Specifications
Size 41/
18LLx22.5
15 x 19.5 39x15-22.5 39x15-22.5
Load Range H G G G
Ply Rating 16 14 14 14
Tire Pressure 70 PSI
(5 Bar)
Foam-
Filled
95 PSI
(6.5 Bar)
Foam-Filled
Table 6-7. Hydraulic Oil
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
SAE VISCOSITY GRADE
+0° 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 +210° C) 20W-20