MAINTENANCE
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result. This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exists.
Add diesel fuel (the grade may vary according to season
and locations).
After prolonged use, water and other impurities accumulate
in the bottom of the tank. Occasionally inspect the fuel
tank for water contamination and drain the contents if
required.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.
Drain the fuel inside the fuel tank completely. Using a spray
washer (Figure 57) wash out any deposits or debris that
have accumulated inside the fuel tank.
Figure 57. Fuel Tank Cleaning
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
— look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
Fuel Hoses — inspect nylon and rubber hoses for signs
of wear, deterioration and hardening.
— inspect the fuel tank lining for signs
of excessive amounts of oil or other foreign matter.
Replace the fuel filter cartridge with new one every 500
hours or so.
Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. spill the fuel during disassembly.
Vent any air
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel,
or after disassembling the fuel system, bleed the system
according to the following procedure. See the Cummins
for details.
