Instruction Manual

Caterpillar: Non-Confidential
should be changed every year regardless
of how many times it has been cleaned.
Change the secondary filter element when
changing the primary filter element.
Change Air Filter Secondary Element
When changing the primary filter element
also change the secondary filter element.
Stop the engine and then open the engine
hood.
1. Remove the outer cover of the air filter.
2. Remove the primary filter element.
3. Remove the nut on the top of the
secondary filter element and take out the
secondary filter element.
4. Clean the inside of the air filter body.
5. Install a new secondary filter element;
the seal ring on the end must have uniform
contact. Tighten the mounting nut of the
secondary filter element by hand. Do not
use tools.
6. Install a new primary filter element and
the outer cover of the air filter. Tighten the
nut on the top of the primary filter element
by hand. Do not use tools.
Attention: Always replace the secondary
filter element. Never attempt to reuse the
secondary filter element by cleaning the
element.
Diesel Fuel Use and
Maintenance
Diesel fuel tank
The diesel fuel tank on this machine is
located on the rear of the cab. Its volume is
150 liters. Open the engine hood; you can
see the filler of the diesel fuel tank. Take
off the filler cap, and then fill diesel fuel.
When filling diesel fuel, please do not to
take out the filler screen. The filler screen
and the diesel fuel tank should be cleaned
regularly; the diesel fuel tank may be
cleaned according to following method:
1. Remove the flange on the bottom of
the diesel fuel tank,
2. Clean the internal surface of diesel fuel
tank, loosen the drain plug under the diesel
fuel tank, and drain the fuel
3. Repeatedly flush, until the drained fuel
is clean.
Drain the Sediment and Water in Diesel
Fuel
The fuel pump and injection pump nozzle
are precision instruments, and if the diesel
fuel contains water or dirt, it will not work
properly and will wear quickly. You should
drain the sediment and water in diesel fuel.
The method is as follows:
1. When conditions permit, diesel fuel
should be left drained for 24 hours before
filling the diesel fuel tank.
2. Before filling fuel, open the drain plug
on the bottom of the diesel fuel tank. Drain
the sediment and water from the diesel fuel
tank every week.
3. In order to vent the saturated air, fill the
diesel fuel tank after completing the day’s
work.
4. In order to precipitate the sediment
and water to the bottom of the diesel fuel
tank, 5 to 10 minutes after filling fuel restart
the engine.
5. Loosen the drain plug under the diesel
fuel pre-filter and diesel fuel primary filter.
Drain out the sediment and water after
completing the day’s work.
Attention: Never wait to fill fuel until the
fuel of the tank has run out, this will make
the engine stop, and the diesel fuel
contains lots of water and sediment, can
impact engine proper work.
The Sulfur Quantity in the Diesel Fuel
The sulfur percentage in the diesel fuel
affects the engine oil selection and
replacement intervals. In the combustion
process, the sulfur makes a chemical
reaction and generates the sulfuric acid
and the sulfurous acid; these acids can
corrode the metal surface. So you must
select diesel fuel contain less sulfur. Some
chemical additives in the lubricating oil
include alkali compound, the alkali
compound can neutralize the acid. So the
oil change intervals should be adjusted by
the sulfur quantity in the diesel fuel: