300HH, 375, 375H, 375HH, 425 AND 425H USER MANUAL R00
SECTION 5
62
• Meets or exceeds performance require-
ments of current industry standards which
include: ASTM D 6210, John Deere H24A2
and H24C2.
If you are not sure of the coolant that is installed
originally or want to change to a different type, the
cooling system must be cleaned with a commercial
cleaning agent (such as CAT Cooling System
Cleaner p/n 4C-4611) and then completely flushed
and filled with water (preferably distilled) several
times to remove all traces of cleaner and old coolant.
Finally, fill the system with the recommended coolant
using only one brand/type. Cross contamination,
which is caused by adding different types of engine
coolants, may result in the depletion or dropout of
coolant additives; thus leaving cooling system
surfaces unprotected against corrosion.
Corrosion to radiator surfaces may reduce cooling
efficiency and radiator life expectancy. It is
extremely important to evacuate/purge all air within
the cooling system before replacing the radiator cap.
Engine coolant must not only maintain proper freeze
protection levels but also maintain proper corrosion
inhibitor levels. Please contact the coolant
manufacture for specifics on testing methods and
suggested coolant maintenance intervals.
*(using manufactures extender additive to system at
3 years or 6000 hours)
5.3
MAINTENANCE AFTER
INITIAL 50 HOURS OF
OPERATION
After the initial 50 hours of operation, the following
maintenance actions are required to eliminate
contaminants from the system:
1. Clean the return line orifice and change the
strainer.
2. Change the compressor fluid filter.
3. Check the Engine Operator’s Manual for ser-
vice requirements.
4. Check the fuel filter for water.
5. Confirm that the sump cover bolts are tight-
ened to 160 lb-ft (215N•m).
5.4
MAINTENANCE EVERY 50
HOURS
1. Inspect air filter elements and replace if nec-
essary.
2. Check the fuel filter for water.
5.5
MAINTENANCE EVERY 100
HOURS
1. Clean the radiator and cooler exterior sur-
faces.
2. Check the Engine Operator’s Manual for ser-
vice requirements.
5.6
MAINTENANCE EVERY 250
HOURS
1. Check fan belt tension.
2. Clean the radiator and cooler exterior sur-
faces. (Where dust and other atmospheric
contaminants are present, it might be neces-
sary to clean these parts more frequently.)
3. Check the Engine Operator’s Manual for ser-
vice requirements.
4. Change the engine oil and filter.:
5. Change the compressor fluid if it is not Sul-
lair AWF
a.
Run the compressor for five to ten minutes to
warm the fluid.
b.
Shut the compressor down and relieve all
internal pressure.
c.
Drain the fluid sump by removing the plug, or
opening the valve at the bottom of the sump
tank.
Coolant Service Life
Coolant Type
Service Life
Mobil Delvac EXTENDED
LIFE Coolant/Antifreeze
*Six Years/12,000 Hours
Caterpillar ELC
*Six Years/12,000 Hours
NOTE
Summary of Contents for 300HH
Page 17: ...SECTION 1 15 Safety Symbols 2 ...
Page 18: ...SECTION 1 16 Safety Symbols 3 ...
Page 49: ...SECTION 2 300HH 375 375H 375HH 425 AND 425H USER MANUAL R00 47 2 9 WIRING DIAGRAM ...
Page 60: ...NOTES 58 ...
Page 79: ...NOTES ...