TM 5-3805-263-14P-3
Fuel
General
CAUTION
CAUTION
Fill the fuel tank at the end of each day of operation
Accumulated grease and oil on a machine is a fire
to drive out moisture laden air and to prevent
hazard. Remove this debris with steam cleaning or
condensation. Do not fill the tank to the brim. The
high pressure water, at least every 1000 hours or
fuel expands when it gets warm and may overflow.
each time any significant quantity of oil is spilled on
Check the fuel level with the dipstick in filler opening.
a machine.
Water and sediment should be drained from the fuel tank
Drain moisture and sediment from the air reservoirs at
at the start of each shift or after the fuel tank has been
the beginning of each day of operation.
filled and allowed to stand for 5 to 10 minutes.
Clean all fittings, caps and plugs before servicing.
Drain the fuel tank of moisture and sediment as required
by prevailing conditions.
Keep a close watch for leaks. If leaking is observed, find
and correct the source of the leak.
After changing the fuel filters, always bleed the fuel
system to remove air bubbles from the system.
If leaking is suspected or observed, check the fluid levels
more frequently than the recommended periods.
Drain water and sediment from the main fuel storage
tank weekly, and before the tank is refilled. This will help
Air Intake
prevent water or sediment from being pumped from the
storage tank into the machine fuel tank.
Check the precleaner screen daily for accumulation of
dust and debris.
Servicing Motor Graders that have been Exposed to
Sub-Zero Temperatures
Service air cleaners when the RED band in the indicator
locks in the visible position.
CAUTION
It is recommended that the primary element can be
When the machine has been exposed to subzero
cleaned up to 6 times before replacement. When
temperatures and brought into the service shop, the
cleaned, the element should be thoroughly checked for
oil warms and expands. This causes extreme high
rips or tears in the filter material. Discard the primary
pressures In the hydraulic system. This can cause
element every year even though it has not been cleaned
damage to the machine.
6 times.
To prevent damage to the machine, either of the two
At the time of the third change of a primary element, the
following methods may be used.
secondary element must be replaced.
1. Loosen the hydraulic lines at either end of EACH
The secondary filter element has a tab on the outer end
cylinder, allowing trapped oil to drain, until
of the element. This is to keep a record of when the
the machine is near shop temperature.
secondary element should be changed.
2. Remove one hydraulic line at EACH cylinder and
drain 480 millilitres (16 ounces) of oil from the line and
A section of the tab should be pulled off each time a
cylinder into a container. Retighten hydraulic lines when
primary element is serviced.
the machine is near shop temperature.
Scheduled Oil Sampling
Use scheduled oil sampling to monitor machine condition
and maintenance requirements.
Each oil sample should be taken when the oil is hot and
well mixed.
This will ensure a sample which is
representative of the oil in the compartment.
5-5
