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Compact Track Loader
11. Maintenance
Extreme Operating Conditions
PT-100 Forestry machines are often used in conditions
that are less than ideal. The machines are used in hot,
dusty/dirty environments under heavy loads for long
periods of time. One prime example is brushcutting. It
is very important that the machines be properly main-
tained for use in conditions such as these and that
maintenance practices and schedules adapt to the rig-
ors of such extreme use.
Recommendations:
1. Air flow test the radiator. terex has available an
Anemometer, Terex part # 0403-112, which allows you
to see the volume of air through the cooling package.
It is important this be tested to assure internal radiator
condition. You cannot see the entire cooler in the
machine. This airflow test will tell you what you can't
see, feel, or hear. The attached graphic and instruc-
tions outline how to test the package. This is the single
most important step to proper cooling and avoiding
machine overheat. This step should be repeated with
regular scheduled maintenance.
2. Remove belly pans, tilt cab, and thoroughly clean.
3. Inspect the pulleys and fan for wear and alignment.
Check water pump weep hole to assure no leaks.
Install new belts. Terex factory belts are highly recom-
mended. The high volume Terex fan requires a very
high quality belt.
4. Check and clean breathers. Check all hose clamps
(waterlines and air intake tubes, etc).
5. Repair any oil leaks (engine and hydraulic). Oil
leaks will plug the radiator in a matter of minutes and
can produce a film on the cooling fins reducing cooling
efficiency. Radiator and oil cooler should be cleaned
with an all purpose cleaner/degreaser such as simple
green any time a leak is noted.
6. A/C condenser, evaporator, heater core, and A/C fil-
ter should be thoroughly cleaned. Dust, dirt, and debris
will limit cab cooling.
7. Change all fluids. Use the proper fluids. Fluid types
can greatly affect machine performance. Test coolant
for 50% mix. Using lower mixture or pure water will
reduce boiling point and cause overheat. They must
use diesel coolant with anti-cavitation properties to
avoid overheat, liner wear, or water pump damage.
Terex has a full line of coolant, engine oil, and
hydraulic oils to suit Terex equipment. Any substitutes
chosen must meet specifications. See TIB016 and
owners manual for specifications.
8. Replace all filters. Air filter maintenance is critical.
Clean daily in brushcutting applications.
Radiator/Oil Cooler Air Flow
Test Procedure
Testing the air flow through the radiator/oil cooler of a
machine is an excellent way to determine if the cooling
system is operating at its intended efficiency. It is also
a good way to indicate if maintenance or repair is
required to maximize machine service life.
Test Requirements
Required Tools
Anemometer (Terex Part #: 0403-112)
This procedure must be followed exactly. Deviating in
any way will give inaccurate data and will not provide
sufficient information to properly monitor your cooling
system performance.
This procedure is to be performed on a standard
machine with all belly pans in place and with the fiber-
glass hood closed and latched (no additional screens
or guards may surround the engine area). All forestry
package doors/hoods (if equipped) are to be open to
obtain accurate readings.
During testing the engine should be running at full
throttle and all auxiliary hydraulic circuits should be
turned off. The Anemometer must be held flat against
the factory radiator screen and held in the positions
indicated in the picture on page 11-21.
Note: When you look through the factory screening at
the radiator you will see that the radiator is slightly
smaller than the screening. Hold the anemometer
directly in front and 1" (2.54cm) in from each edge of
the core as indicated by the test points. You may have
to move the meter around in a ½ " (1.27cm) (approx.)
circle to get accurate readings. Record the highest
readings in each position and then compare them with
the listed specifications. Readings within 10% +/- of
the indicated specification are to be considered nor-
mal.
NOTICE
Fire Hazard
Flammable debris can collect near hot
components and lead to a fire.
11-20
Read Operator's manual
Keep engine, exhaust and chassis
areas free of debris.
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