Instruction Manual

54
Caterpillar: Non-Confidential
filler cap open, start engine, when coolant
temperature increases to more than 80C,
run the engine for another 5 minutes.
12. Stop the engine, drain out the water. If
the water being drained is still dirty, the
cooling system must be cleaned until the
water is clean.
Warning: The engine coolant is poisonous,
do not drink, please handle it according to
the local relevant laws and regulations.
Clean Radiator Fins
Perform following clean procedure if there
is any mud or dirt stuck to the radiator.
1. Remove the bolts, take off the rear grill
from the rear of the machine. At the same
time, remove the connector of the rear
work lamp.
2. Clean the dirt and leaves off o the
radiator fins with compressed air. Steam or
water may be used instead of compressed
air.
3. At the same time, check the rubber
hoses. If the hoses are found to have
cracks or to be hardened by ageing, they
should be replaced with a new one. Also,
tighten the loose hose clamps.
Engine Air Filter
If the diesel engine generates black smoke
or power decreases, the air filter may be
plugged and need maintenance. Use the
following procedure:
1. Stop the engine and open the engine
hood. Attention: To avoid engine damage,
never service the air filter when the engine
is running.
2. Remove the outer cover of the air filter.
3. Remove the nut on the top of the
primary filter element and take out the
primary filter element.
4. Clean the inside of the air filter body.
5. Clean the primary filter element with
compressed air (less than 300 kPa), direct
the airflow from the inside of the filter
element and along its folds. Attention:
When cleaning the primary filter element,
do not hit it or beat it against anything, this
may damage the engine.
6. After cleaning up the primary filter
element, perform a lamp inspection. If the
eyelet or particle is found on it, or if the
gasket or the seal are damaged, replace it
with a new primary filter element.
7. Install a clean primary filter element
into the air filter housing; keep the primary
filter element end seals in uniform contact.
Tighten the nut on the top of the primary
filter element by hand, do not use tools in
order to avoid damages the primary filter
element.
8. Clean and install air filter cover, keep
air filter gasket and air filter housing
uniform contact.
9. After cleaning primary filter element,
start the engine, if the engine generates
black smoke or power decreases again,
replace the secondary filter element with a
new one. The primary filter element must
be changed after being cleaned 6 times. It