Page: 3-26
WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
NOTE:
Directing pressurized air or water from the
fan side of the radiator outward is recommended to
dislodge material packed on the outside of the cool-
ing fins.
DO NOT
use cold water on a hot radiator.
Flushing Radiator and Changing Coolant
Change engine coolant
every year.
Drain the coolant
from the engine and radiator:
1.
Remove the radiator cap.
2.
Open the drain cocks on the engine block and ra-
diator (see the Kohler or Kubota Owner's Manual
for location of the drain cocks). Also, drain the
coolant recovery tank.
3.
If there is any
indication of deposits
or scaling in-
side the radiator, use a commercial scale remover
and
flush the cooling system
thoroughly before
adding fresh coolant.
Use a pre-mixed 50/50 solution of antifreeze (ethylene
glycol) and distilled water to refill the cooling system.
IMPORTANT:
The solution of antifreeze and water
must be thoroughly pre-mixed before putting it in the
engine. Adding pure antifreeze into the radiator may
cause damage to the engine from overheating.
IMPORTANT:
Maintain
proper coolant level
in the ra-
diator and coolant recovery tank. The coolant level
should be maintained between
FULL
and
LOW
marks
on the coolant recovery tank.
Recheck
the coolant lev-
el after the first time the engine has been operated after
filling the coolant system (it would be normal to add a lit-
tle coolant after initial operation).
Engine Air Cleaner System - Model MW
There are two components in the engine air cleaner
system: a foam prefilter element and a paper element.
Each component is checked, cleaned and maintained
on a different schedule based on the filtering action re-
quired. Each component is serviced as follows:
Engine Air Cleaner Foam and Paper Element
Foam Precleaner Element
Clean and inspect the foam element after every 25
hours of service and replace the element yearly (or
when dirty or damaged). Wash the element in deter-
gent and water; and dry it thoroughly. More frequent
cleaning may be required when operating in extremely
dusty conditions.
Paper Precleaner Element
Inspect the paper element
after every 50 hours
of ser-
vice and
replace
the element
every 200 hours
(or
when dirty or damaged). More frequent replacement
may be required when operating in extremely dusty
conditions.
Be careful to reinstall the foam element and the paper
element into the air cleaner case. Carefully reinstall the
air cleaner cover into the air cleaner body by putting the
hooks on the bottom of the air cleaner cover into the air
cleaner body bottom.
WARNING
Radiator and engine parts can become ex-
tremely hot during operation. Wear gloves
and avoid touching hot parts while clean-
ing the radiator screen and cleaning de-
bris away from the engine and cooling
system.
Paper
Element
Foam
Element
Summary of Contents for MT, MTL, MTEFI, MTLEFI
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