Oshkosh Corporation JLG 1200SJP, Operation And Safety Manual

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SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
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7-5
Engine Data - Caterpillar Hydraulic Oil
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 Industries recommends
standard UTTO hydraulic oil, which has an SAE viscosity index of
152.
NOTE:
When temperatures remain consistently below 20 degrees F. (-7
degrees C.), JLG Industries recommends the use of Mobil DTE13.
Aside from JLG recommendations, it is not advisable to mix oils of differ -
ent brands or types, as they may not contain the same required addi -
tives or be of comparable viscosities.
Table 7-7. Caterpillar 3.4T Specifications
Type Liquid Cooled, Antifreeze
Number of Cylinders 4
Bore 3.7 in. (94 mm)
Stroke 4.7 in. (120 mm)
Total Displacement 201 cu. in. (3294 cm³)
Compression Ratio 19.5:1
Firing Order 1-3-4-2
Output 73.7hp (55 kW)
Oil Capacity 10.5 Quarts (10 L)
Average Fuel Consumption 1.36 gph (5.14 lph)
Idle Engine RPM 1200
Mid Engine RPM 1800
High Engine RPM 2475
Table 7-8. Hydraulic Oil Specifications
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