PRINCIPLES OF OPERATION. (cont)
ENGINE (Figure 1-4). Caterpillar 4 stroke cycle 3304 turbocharged diesel engine with four cylinders. Direct
injection Caterpillar fuel system with individual nonadjustable injection pumps and valves. Dry type air cleaner with primary
and secondary elements.
Pressure lubrication with full flow filtered oil and oil cooler. Oil sampling valve mounted at the left side of the engine on the
intake manifold (Figure 1-5). Refer to LO 5-3805-261-12 and TB 43-0210 for oil sampling instructions.
Uses economical No. 2 fuel oil (ASTM Specification D396, No. 2 furnace or burner oil) with a minimum cetane rating of 35.
Premium quality fuel can be used but is not required.