TM 5-3805-261-20
PRINCIPLES OF OPERATION.
1-15.
FUEL SYSTEM.
a.
Fuel Injector Nozzles. Mounted on cylinder head. Four used. Closed end, differential pressure,
hydraulically operated, hole type.
b.
Fuel Transfer Pump (Figure 1-6). Mounted on the fuel injector pump at forward, right side of engine. Cam
operated. Draws fuel from fuel tank through inline primary fuel filter and pushes it through the secondary filter to the
individual fuel injectors.
Figure 1-6.
c.
Air Cleaner (Figure 1-7). Dry type. Filters air before it is applied to the inlet manifold by the turbocharger.
Mounted at top of engine and projects upward through the hood. Dust is drawn from incoming air through dust ejector line
attached to exhaust system.
Figure 1-7.
d.
Turbocharger. Mounted on top of engine on right side. Forces incoming air under pressure into the inlet
manifold to raise engine efficiency.
e.
Fuel Tank. 75 gal capacity. Mounted at rear of 130G Grader between the engine and the radiator.
1-23
