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4. MAINTENANCE
IMPORTANT: When adding coolant to the system,
use the appropriate coolant solution. Coolant 50/50
mixture of antifreeze/distilled water meeting ASTM
4985, ASTM D5345 (pre-diluted coolant) or John
Deere COOL-GARD. 50/50 mixture provides
protection to -34° F (-37° C). Do not overfill cooling
system. A pressurized system needs space for heat
expansion without overflowing at top of radiator.
2. Fill until coolant level touches bottom of
radiator filler neck.
3. Tighten fitting when air has been expelled from
system.
4.8.3 Disposing of Coolant
Improperly disposing of engine coolant can threaten
the environment and ecology.
Use leakproof containers when draining fluids. Do not
use food or beverage containers that may mislead
someone into drinking from them.
Do not pour waste onto the ground, down a drain, or
into any water source.
Inquire on the proper way to recycle or dispose of
waste from your local environmental or recycling
center or from your dealer.
4.9 AIR CLEANER
4.9.1 Air Cleaner Service
IMPORTANT: Do not operate engine without the
dust unloader valve.
For daily inspection refer to the Operating section of
this manual.
Clean the primary (outer) filter element every 100
hours.
IMPORTANT: Always replace secondary safety
(inner) filter elements. DO NOT attempt to clean
them. Do not blow air from outside portion of filter
with air nozzle. Wear safety glasses and remove
bystanders.
1. Remove air cleaner cover.
2. Remove primary (outer) element only.
3. Thoroughly clean all dirt from inside filter housing.
4. Air cleaner has rubber dust unloader valve on the
air cleaner. Squeeze valve tip to release any
trapped dirt particles.
5. Inspect filter to determine if it is practical to clean
or for damage after cleaning filter.
a. Hold a bright light inside element and
check carefully for holes. Discard
any element that shows the smallest hole
or rupture.
b. Be sure outer screen is not dented.
Vibration would quickly wear a hole in
filter.
c. Be sure filter gasket is in good condition.
If gasket is damaged or missing, replace
element.
6. Gently pat sides of element with palm of hand to
loosen dirt. DO NOT tap element against a
hard surface.
ONLY A SPECIAL AIR CLEANING GUN SHOULD
BE USED. CONCENTRATED AIR PRESSURE
FROM AN ORDINARY AIR NOZZLE MAY
SEVERELY DAMAGE FILTER ELEMENT. DO
NOT EXCEED 30 psi (2.1 bar) WHEN CLEANING
FILTER ELEMENT.
7. Insert the cleaning gun into element, hold air
nozzle about 1" (25.4) mm from perforated metal
retainer. Force air through filter from inside to
outside and move air gun up and down pleats to
remove as much dirt as possible.
8. Repeat steps 6 and 7 to remove additional dirt.
9. Inspect element for damage after cleaning.
Replace element if any damage is found.
Service air cleaner more frequently in dusty conditions.
4.9.2 Air Cleaner Replacement
Replace primary (outer) element every 600 hours.
1. Remove air cleaner cover.
WARNING